3 # NOTE: additional options can be passed to git repack by specifying
4 # them after the project name, for example:
12 echo "Usage: gc.sh projname [extra-repack-args]" >&2
18 unset GIROCCO_SUPPRESS_AUTO_GC_UPDATE
19 .
"$cfg_basedir/jobd/maintain-auto-gc-hack.sh"
20 .
"$cfg_basedir/jobd/generate-auto-gc-update.sh"
21 GIROCCO_SUPPRESS_AUTO_GC_UPDATE
=1 && export GIROCCO_SUPPRESS_AUTO_GC_UPDATE
24 packopts
="--depth=50 --window=50 --window-memory=${var_window_memory:-1g}"
25 quiet
="-q"; [ "${show_progress:-0}" = "0" ] || quiet
=
28 [ "$cfg_permission_control" != "Hooks" ] ||
umask 000
32 eval "$1="'$(( $# - 1 ))'
36 if _result
="$(kill -0 "$1" 2>&1)"; then
37 # process exists and we have permission to signal it
40 case "$_result" in *"not permitted"*)
41 # we do not have permission to signal the process
44 # process does not exist
49 # A .lock file should only exist for much less than a second.
50 # If we see a stale lock file (> 1h old), remove it and then,
51 # just in case, wait 30 seconds for any process whose .lock
52 # we might have just removed (it's racy) to finish doing what
53 # should take much less than a second to do.
54 _stalelock
="$(find -L "$1.lock
" -maxdepth 1 -mmin +60 -print 2>/dev/null)" ||
:
55 if [ -n "$_stalelock" ]; then
60 if (set -C; >"$1.lock") 2>/dev
/null
; then
65 [ "$_try" != "p" ] ||
sleep 1
67 # cannot create lock file
71 # The pre-receive script creates one ref log file per push but we want them to
72 # be coalesced into one ref log file per day. We are guaranteed that any files
73 # we find to coalesce are NOT currently being written to since they are always
74 # written first as temporary files and then moved into place. We attempt to
75 # transfer the most recent modification time to the coalesced log file which
76 # would step on its mod time if it were being written to directly, but if we
77 # find per-process ref log files then it must be a push project and the only
78 # thing that would write directly to the main per-day log file would be a
79 # mirror project so there's actually no conflict.
80 # Also, if the clock is wonky (or was futzed with) we may have both YYYYMMDD
81 # and YYYYMMDD.gz present in which case combine them into YYYYMMDD
83 [ -d reflogs
] ||
return 0
85 find -L reflogs
-maxdepth 1 -type f
-name "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]" -print |
86 while read -r rname
; do
87 if [ -e "$rname.gz" ]; then
88 if [ -s "$rname" ]; then
89 # Presumably the .gz file must have been created before the non-gz
90 # file since it had to be uncompressed at some point therefore
91 # we need to append the non-gz contents to it but keep the non-gz
92 # contents timestamp so we rename to YYYYMMDD_ which will sort first
93 # and be picked up in the next step if we are interrupted in the middle.
94 # If a YYYYMMDD_ file already exists we append to it and transfer the
95 # timestamp. Finally we transfer the YYYYMMDD_ timestamp to the result
96 # and remove the YYYYMMDD_ temporary file leaving the result uncompressed.
97 if [ -e "${rname}_" ]; then
98 cat "$rname" >>"${rname}_"
99 touch -r "$rname" "${rname}_"
103 mv "$rname" "${rname}_"
105 gzip -d "$rname.gz" </dev
/null
106 [ -e "$rname" ] && ! [ -e "$rname.gz" ]
107 cat "${rname}_" >>"$rname"
108 touch -r "${rname}_" "$rname"
111 # Just remove the empty file to resolve the problem
116 find -L reflogs
-maxdepth 1 -type f
-name "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]_*" -print | LC_ALL
=C
sort |
117 while read -r rname
; do
118 logname
="${rname%%_*}"
119 # If someone's been futzing with the date, the file we want to
120 # append to could already have been compressed, so we just uncompress
121 # it here. The previous block guarantees we do not have both a compressed
122 # and uncompressed version present at the same time.
123 if [ -e "$logname.gz" ]; then
124 gzip -d "$logname.gz" </dev
/null
125 [ -e "$logname" ] && ! [ -e "$logname.gz" ]
127 cat "$rname" >>"$logname"
128 touch -r "$rname" "$logname"
130 if [ -e "$rname" ]; then
132 echo "! [$proj] failed to remove $rname" >&2
133 exit 1 # will only exit subshell created by "|"
139 # Remove any files in reflogs that are older than $cfg_reflogs_lifetime days
141 [ -d reflogs
] ||
return 0
142 exp
="$(( ${cfg_reflogs_lifetime:-1} * 1440 ))"
143 [ $exp -gt 0 ] || exp
=1440
144 [ $exp -le 43200 ] || exp
=43200
145 find -L reflogs
-maxdepth 1 -type f
-mmin "+$exp" -exec rm -f '{}' + ||
:
148 # Compact any reflogs that are not today's UTC date unless a .gz version exists
150 [ -d reflogs
] ||
return 0
151 _td
="reflogs/$(TZ=UTC date '+%Y%m%d')"
152 find -L reflogs
-maxdepth 1 -type f
-name "[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]" -print |
153 while read -r rname
; do
154 [ "$rname" != "$_td" ] ||
continue
155 ! [ -e "$rname.gz" ] ||
continue
156 gzip -9 "$rname" </dev
/null
160 # return true if there's more than one objects/pack-<sha>.pack file or
161 # ANY sha-1 files in objects
163 _packs
=$
(find -L objects
/pack
-name "pre-auto-gc-[12].pack" -prune -o -name "*.pack" -type f
-print |
head -n 2 | LC_ALL
=C
wc -l)
164 if [ $_packs != 1 ] && [ $_packs != 0 ]; then
167 _objs
=$
(find -L objects
/$octet -name "$octet19*" -type f
-print 2>/dev
/null |
head -n 1 | LC_ALL
=C
wc -l)
171 # make sure combine-packs uses the correct Git executable
172 run_combine_packs
() {
173 PATH
="$var_git_exec_path:$cfg_basedir/bin:$PATH" @basedir@
/jobd
/combine-packs.sh
"$@"
176 # duplicate the first file to the name given by the second file making sure that
177 # the second file appears atomically all-at-once after the copy has been completed
178 # and does not appear at all if the copy fails (in which case this function fails)
179 # if the second file already exists this function fails with status 1
180 # if the file names are the same this function returns immediately with success
182 [ "$1" != "$2" ] ||
return 0
183 ! [ -e "$2" ] ||
return 1
185 *?
/?
*) _tmpdir
="${2%/*}";;
188 _tmpfile
="$(mktemp "${_tmpdir:-.}/packtmp-XXXXXX
")" ||
return 1
189 cp -fp "$1" "$_tmpfile" ||
return 1
190 mv -f "$_tmpfile" "$2"
193 # rename_pack oldnamepath newnamepath
194 # note that .keep and .bndl files are left untouched and not moved at all!
196 [ $# -eq 2 ] && [ "$1" != "$2" ] ||
{
197 echo >&2 "[$proj] incorrect use of rename_pack function"
200 # Git assumes that if the destination of the rename already exists
201 # that it is, in fact, a copy of the same bytes so silently succeeds
202 # without doing anything. We duplicate that logic here.
203 # Git checks for the .idx file first before even trying to use a pack
204 # so it should be the last moved and the first removed.
205 for ext
in pack bitmap idx
; do
206 [ -f "$1.$ext" ] ||
continue
207 ln "$1.$ext" "$2.$ext" >/dev
/null
2>&1 ||
208 dupe_file
"$1.$ext" "$2.$ext" >/dev
/null
2>&1 ||
209 [ -f "$2.$ext" ] ||
{
210 echo >&2 "[$proj] unable to move $1.$ext to $2.$ext"
214 for ext
in idx pack bitmap
; do
220 # combine the input pack(s) into a new pack (or possibly packs if packSizeLimit set)
221 # input pack names are read from standard input one per line delimited by the first
222 # ':', ' ' or '\n' character on the line (which allows gfi-packs to be read directly)
223 # all arguments, if any, are passed to pack-objects as additional options
224 # returns non-zero on failure AND creates .gc_failed in that case
227 find -L objects
/pack
-maxdepth 1 -type f
-name '*.zap*' -exec rm -f '{}' + ||
:
228 run_combine_packs
--replace "$@" $packopts --all-progress-implied $quiet --non-empty ||
{
235 # if the current directory is_gfi_mirror then repack all packs listed in gfi-packs
237 [ -n "$gfi_mirror" ] ||
return 0
238 [ -d objects
/pack
] ||
{ rm -f gfi-packs
; return 0; }
239 progress
"~ [$proj] redeltifying poor quality git fast-import packs"
240 combine_packs
--ignore-missing --no-reuse-delta <gfi-packs
245 # see if there are "lotsa" loose objects
246 # "lotsa" is defined as the 17, 68, 71 and 86 object directories existing
247 # and there being at least 5 total objects between them which corresponds
248 # to an approximate average of 320 loose objects before this function starts
249 # returning true and triggering a "mini" gc to pack up loose objects
250 lotsa_loose_objects
() {
251 [ -d objects
/17 ] && [ -d objects
/68 ] && [ -d objects
/71 ] && [ -d objects
/86 ] ||
return 1
252 _objs
=$
(( $
(find -L objects
/17 objects
/68 objects
/71 objects
/86 -maxdepth 1 -name "$octet19*" -type f
-print 2>/dev
/null | LC_ALL
=C
wc -l) ))
253 [ ${_objs:-0} -ge 5 ]
256 # pack any existing loose objects into a new _l.pack file then run prune-packed
257 # note that prune-packed is NOT run beforehand -- the caller must do that if needed
258 # loose objects need not be part of complete commits/trees as --weak-naming is used
259 pack_loose_objects
() {
260 _lpacks
="$(run_combine_packs </dev/null --names --loose --weak-naming --non-empty --all-progress-implied ${quiet:---progress} $packopts)"
261 if [ -n "$_lpacks" ]; then
262 # We need to identify these packs later so we don't combine_packs them
263 for _objpack
in $_lpacks; do
264 rename_pack
"objects/pack/pack-$_objpack" "objects/pack/pack-${_objpack}_l" ||
:
266 git prune-packed
$quiet
270 # combine small packs into larger pack(s)
271 # we avoid any _[lo], keep, bndl or bitmap packs
272 # if the optional argument is non-empty even a single small pack will be redeltad
273 combine_small_packs
() {
276 if [ -n "$1" ] && [ -n "$noreusedeltaopt" ]; then
279 _lpo
="--exclude-no-idx --exclude-keep --exclude-bitmap --exclude-bndl"
280 _lpo
="$_lpo --exclude-sfx _u --exclude-sfx _o --exclude-sfx _l"
281 _lpo
="$_lpo --quiet --object-limit $var_redelta_threshold objects/pack"
283 _cnt
="$(list_packs --count $_lpo)" ||
:
284 test "${_cnt:-0}" -ge $_minsmallpacks
286 [ -n "$_didprogress" ] ||
{
287 progress
"~ [$proj] combining small packs into a single larger pack"
290 _newp
="$(list_packs $_lpo | combine_packs --names $noreusedeltaopt)"
292 # be paranoid and exit the loop if we haven't reduced the number of packs
293 [ $_newc -lt $_cnt ] ||
break
299 # combine small _l packs into larger pack(s) using --weak-naming
300 # we avoid any non _l, keep, bndl or bitmap packs
301 # if the optional 2nd argument is non-empty even a single small pack will be redeltad
302 combine_small_loose_packs
() {
305 if [ -n "$1" ] && [ -n "$noreusedeltaopt" ]; then
308 _lpo
="--exclude-no-idx --exclude-keep --exclude-bitmap --exclude-bndl"
309 _lpo
="$_lpo --exclude-no-sfx _l"
310 _lpo
="$_lpo --quiet --object-limit $var_redelta_threshold objects/pack"
312 _cnt
="$(list_packs --count $_lpo)" ||
:
313 test "${_cnt:-0}" -ge $_minsmallpacks
315 [ -n "$_didprogress" ] ||
{
316 progress
"~ [$proj] combining small loose packs into a single larger pack"
319 _newp
="$(list_packs $_lpo | combine_packs --names --weak-naming $noreusedeltaopt)"
320 # We need to identify these packs later so we don't combine_packs them
321 for _objpack
in $_newp; do
322 rename_pack
"objects/pack/pack-$_objpack" "objects/pack/pack-${_objpack}_l" ||
:
325 # be paranoid and exit the loop if we haven't reduced the number of packs
326 [ $_newc -lt $_cnt ] ||
break
332 # Unfortunately, some fetch strategies (e.g. git-svn and non-smart HTTP) lack
333 # the ability to store newly fetched objects in a pack.
334 # However, the fetch code conveniently sets .needspack just before it fetches
335 # so that it's easy to find all the loose objects that have been fetched and
336 # combine them into a pack. The --no-reuse-delta option is meaningless here
337 # since everything to be packed is a loose object and therefore not a delta so
338 # deltification will always take place.
340 [ -f .needspack
] ||
return 0
342 mv -f .needspack .needspackgc
343 progress
"~ [$proj] combining fetched loose objects into a pack"
344 _newp
="$(find -L objects/$octet -maxdepth 1 -type f -newer .needspackgc -name "$octet19*" -print 2>/dev/null |
345 LC_ALL=C awk -F / '{print $2 $3}' |
346 run_combine_packs --objects --names $packopts --incremental --all-progress-implied $quiet --non-empty)" ||
{
347 # We used to fail gc here.
348 # Now, however, we just ignore the failure because we have
349 # another mechanism to handle loose objects and it's possible
350 # that the fetcher somehow brought in unconnected objects which
351 # would cause the above combine-packs to fail.
352 # By ignoring the failure and just removing the .needspack file
353 # the loose objects will be treated as "ordinary" loose objects
354 # and packed using the "--weak-naming" option which can handle
355 # broken connectivity.
356 # That's a better solution than just failing here or leaving
357 # .needspack behind to potentially continue to fail again and
361 if [ -n "$_newp" ]; then
362 # remove the now-redundant loose objects -- this is always safe
363 # even during a concurrent push because a reprepare_packed_git
364 # will be triggered if an object that should be there is not
365 # found thereby finding it in the new pack instead
366 git prune-packed
$quiet
371 # HEADSHA="$(pack_is_complete /full/path/to/some.pack /full/path/to/packed-refs "$(cat HEAD)")"
373 # Must have a matching .idx file and a non-empty packed-refs file
374 [ -s "${1%.pack}.idx" ] ||
return 1
375 [ -s "$2" ] ||
return 1
381 "ref: refs/"?
*|
"ref:refs/"?
*|
"refs/"?
*)
382 _headmatch
="${3#ref:}"
383 _headmatch
="${_headmatch# }"
384 _headmatchpat
="$(echo "$_headmatch" | LC_ALL=C sed -e 's/\([.$]\)/\\\1/g')"
385 _headsha
="$(LC_ALL=C grep -e "^
$octet20$hexdig* $_headmatchpat\$
" <"$2" |
386 LC_ALL=C cut -d ' ' -f 1)"
387 case "$_headsha" in $octet20*) :;; *)
395 rm -rf pack_is_complete_test
396 mkdir pack_is_complete_test
397 mkdir pack_is_complete_test
/refs
398 mkdir pack_is_complete_test
/objects
399 mkdir pack_is_complete_test
/objects
/pack
400 echo "$_headsha" >pack_is_complete_test
/HEAD
401 ln -s "$1" pack_is_complete_test
/objects
/pack
/
402 ln -s "${1%.pack}.idx" pack_is_complete_test
/objects
/pack
/
403 ln -s "$2" pack_is_complete_test
/packed-refs
404 _count
="$(git --git-dir=pack_is_complete_test rev-list --count --all 2>/dev/null)" ||
:
405 rm -rf pack_is_complete_test
406 [ -n "$_count" ] ||
return 1
407 [ "$_count" -gt 0 ] 2>/dev
/null ||
return 1
411 # On return a "$lockf" will have been created that must be removed when gc is done
413 # be compatibile with gc.pid file from newer Git releases
417 if [ "$(createlock "$lockf")" ]; then
419 # 1) less than 12 hours old
420 # 2) contains two fields (pid hostname) NO trailing NL
421 # 3) the hostname is different OR the pid is still alive
422 # then we exit as another active process is holding the lock
423 if [ "$(find -L "$lockf" -maxdepth 1 -mmin -720 -print 2>/dev/null)" ]; then
426 read -r apid ahost ajunk
<"$lockf" ||
:
427 if [ "$apid" ] && [ "$ahost" ]; then
428 if [ "$ahost" != "$hn" ] || pidactive
"$apid"; then
434 echo >&2 "[$proj] unable to create gc.pid.lock file"
437 if [ -n "$active" ]; then
439 echo >&2 "[$proj] gc already running on machine '$ahost' pid '$apid'"
442 printf "%s %s" "$$" "$hn" >"$lockf.lock"
443 chmod 0664 "$lockf.lock"
444 mv -f "$lockf.lock" "$lockf"
447 # Create a repack subdirectory such that running repack in it will pack the
448 # same things that a pack in the normal directory would except that the pack
449 # is guaranteed to be generated in an optimized order by adding a suitable
450 # synthesized ref in the refs/tags namespace (yes, pack-objects.c really does
451 # behave differently depending on the contents of the refs/tags namespace).
452 # Before calling this, pack-refs --all MUST be performed or the wrong pack
453 # will end up being made.
455 # If a ref deletion is pushed after making the repack subdir but before the
456 # the actual repack, the discarded objects will be packed -- no big deal,
457 # they'll get discarded the next time gc runs.
459 # If a fast-forward ref update is pushed after making the repack subdir but
460 # before the actual repack, it will be picked up and the new objects packed
461 # (subject to the normal git repack race about picking such updates up).
463 # If a non-fast-forward ref update is pushed after making the repack subdir but
464 # before the actual repack, it will be picked up like a fast-forward update but
465 # the discarded objects will be included like a ref deletion (until the next
466 # scheduled gc takes place).
468 # We retain a copy of the original packed-refs file as repack/packed-refs.orig
469 # If ref deletions come in while we're repacking, the original packed-refs
470 # file will be modified, but we'll still pack the deleted ref(s).
471 # If the packed-refs.orig file is used to create the bundle header we avoid
472 # a situation where the bundle contains a ref state that never actually
473 # existed in reality (for example a new branch is pushed and then an old
474 # branch deleted afterwards -- the deletion would show up in the bundle
475 # because it will cause the original packed-refs file to be re-written, but
476 # the new branch creation will not unless we do another pack-refs which might
477 # lead to having in incomplete bundle). Therefore we want to keep a copy of
478 # the original packed-refs file around. We do the same thing for HEAD.
480 # It's possible that the "objects" subdirectory is a symbolic link.
481 # Git does support this. However, during the repacking process, new packs
482 # will be created in repack/alt/pack and then moved into objects/pack.
483 # In order for this to work seemlessly, they must both be on the same
484 # filesystem. But when objects (or even objects/pack) is a symbolic link they
485 # might not be. For this reason a "repack" subdirectory is created under
486 # objects/pack and the repack/alt/pack directory symbolicly linked to it.
488 # Git allows not just HEAD to be a symbolic-ref, but any ref anywhere in the
489 # refs namespace. We are concerned about ref name collisions and getting the
490 # right tag set to get an optimal pack. We can safely duplicate the ref space
491 # under refs/heads, refs/notes and refs/remotes without any risk of unwanted
492 # collisions and this will likely make over 99%+ of all symbolic refs found
493 # in the wild work properly. Girocco itself never creates any symbolic refs
494 # inside the refs namespace; this is a nod to simultaneously using a Girocco
495 # repository for other purposes.
497 ! [ -d repack
] ||
rm -rf repack
498 ! [ -d repack
] ||
{ echo >&2 "[$proj] cannot remove repack subdirectory"; exit 1; }
499 [ -d objects
/pack
] || mkdir
-p objects
/pack
500 ! [ -d objects
/pack
/repack
] ||
rm -rf objects
/pack
/repack
501 ! [ -d objects
/pack
/repack
] ||
{ echo >&2 "[$proj] cannot remove objects/pack/repack subdirectory"; exit 1; }
502 mkdir repack repack
/refs repack
/alt objects
/pack
/repack
503 [ -d info
] || mkdir info
504 ln -s ..
/config repack
/config
505 ln -s ..
/info repack
/info
506 ln -s ..
/objects repack
/objects
507 ln -s "$PWD/objects/pack/repack" repack
/alt
/pack
508 ln -s ..
/..
/refs repack
/refs
/refs
509 _lines
=$
(( $
(LC_ALL
=C
wc -l <packed-refs
) ))
510 cat HEAD
>repack
/HEAD.orig
511 >repack
/packed-refs.extra
513 cat packed-refs
>repack
/packed-refs.orig
514 if [ $
(LC_ALL
=C
wc -l <repack
/packed-refs.orig
) -ne "$_lines" ]; then
515 echo >&2 "[$proj] error: make_repack_dir failed original packed-refs line count sanity check"
518 if [ "${cfg_fetch_stash_refs:-0}" = "0" ]; then
519 # migrate any refs/stash or refs/tgstash lines to repack/packed-refs.extra
520 <repack
/packed-refs.orig
awk -v xtra
="repack/packed-refs.extra" '
521 BEGIN { peeling = 0 }
522 NR == 1 && /^#/ { print; next; }
523 peeling && /^\^/ { print >>xtra; next; }
524 /^[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f]+ refs\/(stash|tgstash)(\/|$)/ {
529 { peeling = 0; print; }
530 ' >repack
/packed-refs.new
531 _xtralines
="$(( $(LC_ALL=C wc -l <repack/packed-refs.extra) + 0 ))"
532 _newlines
="$(( $(LC_ALL=C wc -l <repack/packed-refs.new) + 0 ))"
533 if [ "$(( $_newlines + $_xtralines ))" -ne "$_lines" ]; then
534 echo >&2 "[$proj] error: make_repack_dir failed packed-refs.extra line count sanity check"
537 mv -f repack
/packed-refs.new repack
/packed-refs.orig
540 # Note: Git v1.5.0 introduced the "# pack-refs with:" header line for the packed-refs file
541 sed '/^# pack-refs/d; s, refs/, refs/!/,' <repack
/packed-refs.orig
>repack
/packed-refs
543 headref
="$(git rev-parse --verify --quiet HEAD)" ||
:
544 if [ -n "$headref" ]; then
545 echo "$headref refs/!=/HEAD" >>repack
/packed-refs
546 echo "$headref refs/heads/!" >>repack
/packed-refs
547 nohead
='\, refs/heads/!$,d; '
548 _lines
=$
(( $_lines + 2 ))
550 if [ $
(( $
(LC_ALL
=C
wc -l <repack
/packed-refs
) + 1 )) -ne "$_lines" ]; then
551 echo >&2 "[$proj] error: make_repack_dir failed packed-refs initial line count sanity check"
554 sed -n "$nohead"'\, refs/heads/,p; \, refs/notes/,p; \, refs/remotes/,p' <repack
/packed-refs.orig
>>repack
/packed-refs
555 _newlines
="$(( $(LC_ALL=C wc -l <repack/packed-refs) ))"
556 if [ $
(( $_newlines + 1 )) -lt "$_lines" ]; then
557 echo >&2 "[$proj] error: make_repack_dir failed packed-refs extra line count sanity check"
561 optref
="$(git rev-list -n 1 --all 2>/dev/null)" ||
:
562 if [ -n "$optref" ]; then
563 echo "$optref refs/tags/!" >>repack
/packed-refs
564 _lines
=$
(( $_lines + 1 ))
565 echo "$optref" >repack
/HEAD
567 cat HEAD
>repack
/HEAD
569 if [ $
(LC_ALL
=C
wc -l <repack
/packed-refs
) -ne "$_lines" ]; then
570 echo >&2 "[$proj] error: make_repack_dir failed packed-refs line count sanity check"
575 # Remove any crud that's been left behind by interrupted operations
576 # that did not clean up after themselves
578 # Remove any existing FETCH_HEAD
579 # There can only be a FETCH_HEAD if we've been fetching, not if we've been
580 # receiving pushes (those never create a FETCH_HEAD).
581 # And if we're fetching because we're a mirror, we know we're not fetching right
582 # now since jobd.pl never runs a project's fetch simultaneously with its gc.
583 # Therefore any existing FETCH_HEAD is junk. And it may be many megabytes if
584 # there were a lot of refs.
587 # remove any existing pack_is_complete_test or repack subdirectories
588 # If either exists when this function is called it's crud
589 rm -rf pack_is_complete_test repack objects
/pack
/repack
591 # Remove any stale pack remnants that are more than an hour old.
592 # Stale pack fragments are defined as any pack-<sha1>.ext where .ext is NOT
593 # .pack AND the corresponding .pack DOES NOT exist. A bunch of stale
594 # pack-<sha1>.idx files without their corresponding .pack files are worthless
595 # and just waste space. Normally there shouldn't be any remnants but actually
596 # this can happen when things are interrupted at just the wrong time.
597 # Note that the objects/pack directory is created by git init and should
599 find -L objects
/pack
-maxdepth 1 -type f
-mmin +60 -name "pack-$octet20*.?*" -print |
600 LC_ALL
=C
sed -e 's/^objects\/pack\/pack-//; s/\..*$//' | LC_ALL
=C
sort -u |
601 while read packsha
; do
602 ! [ -e "objects/pack/pack-$packsha.pack" ] ||
continue
603 rm -f "objects/pack/pack-$packsha".?
*
606 # Remove any stale tmp reflogs files that are more than one hour old.
607 # Since they are created only while the pre-receive hook is running and
608 # all it does is process a bunch of refs passed to it on standard input
609 # it's inconceivable that it would ever take as much as an hour to run.
610 if [ -d reflogs
]; then
611 find -L reflogs
-maxdepth 1 -type f
-mmin +60 -name "tmp_*" -exec rm -f '{}' + ||
:
614 # Remove any stale object tmp_obj_* files that are more than 3 hours old.
615 # Really these files should only exist very briefly so there shouldn't be any
616 # but things happen that can end up leaving them behind.
617 find -L objects
/$octet -maxdepth 1 -type f
-mmin +180 -name "tmp_obj_?*" -exec rm -f '{}' + 2>/dev
/null ||
:
619 # Remove any stale pack .keep files that are more than 12 hours old.
620 # We don't do anything to create any permanent pack .keep files, so they must
621 # be remnants from some failed push or something. Removing the .keep will
622 # allow the pack to be properly repacked.
623 find -L objects
/pack
-maxdepth 1 -type f
-mmin +720 -name "pack-$octet20*.keep" -exec rm -f '{}' + ||
:
625 # Remove any stale tmp_pack_*, tmp_idx_*, tmp_bitmap_*, packtmp-* or .tmp-*-pack* files
626 # that are more than 12 hours old.
627 find -L objects
/pack
-maxdepth 1 -type f
-mmin +720 \
( \
628 -name "tmp_pack_?*" -o -name "tmp_idx_?*" -o -name "tmp_bitmap_?*" -o \
629 -name "packtmp-?*" -o -name ".tmp-?*-pack*" \
630 \
) -exec rm -f '{}' + ||
:
632 # Remove any stale incoming-* object quarantine directories that are
633 # more than 12 hours old. These are new with Git >= 2.11.0.
634 find -L objects
-maxdepth 1 -type d
-name 'incoming-?*' -mmin +720 \
635 -exec rm -rf '{}' + ||
:
637 # Remove any stale shallow_* files that are more than 12 hours old.
638 # These can be left behind by Git >= 1.8.4.2 and < 2.0.0 when a client
639 # requests a shallow clone. Also discard stale .refs-temp* and
640 # .refs-new* files at the same time.
641 find -L .
-maxdepth 1 -type f
-mmin +720 \
( \
642 -name "shallow_?*" -o -name ".refs-temp*" -o -name ".refs-new*" \
643 \
) -exec rm -f '{}' + ||
:
645 # Remove any stale *.temp files in the objects area that are more than 12 hours old.
646 # This can be stale sha1.temp, or stale *.pack.temp so we kill all stale *.temp.
647 find -L objects
-type f
-mmin +720 -name "*.temp" -exec rm -f '{}' + ||
:
649 # Remove any stale *.lock files in the htmlcache area that might have been left
650 # behind after an abnormal exit during an attempt to update a cached file and
651 # are more than 1 hour old.
652 ! [ -d htmlcache
] ||
find -L htmlcache
-type f
-mmin +60 -name "*.lock" -exec rm -f '{}' + ||
:
654 # Remove any stale git-svn temp files that are more than 12 hours old.
655 # The git-svn process creates temp files with random 10 character names
656 # in the root of $GIT_DIR. Unfortunately they do not have a recognizable
657 # prefix, so we just have to kill any files with a 10-character name. We
658 # do this only for git-svn mirrors. All characters are chosen from
659 # [A-Za-z0-9_] so we can at least check that and fortunately the only
660 # collision is 'FETCH_HEAD' but that shouldn't matter.
661 # There may also be temp files with a Git_ prefix as well.
662 if [ -n "$svn_mirror" ]; then
663 _randchar
='[A-Za-z0-9_]'
664 _randchar2
="$_randchar$_randchar"
665 _randchar4
="$_randchar2$_randchar2"
666 _randchar10
="$_randchar4$_randchar4$_randchar2"
667 find -L .
-maxdepth 1 -type f
-mmin +720 -name "$_randchar10" -exec rm -f '{}' + ||
:
668 find -L .
-maxdepth 1 -type f
-mmin +720 -name "Git_*" -exec rm -f '{}' + ||
:
671 # Remove any stale fast_import_crash_<pid> files that are more than 3 days old.
672 if [ -n "$gfi_mirror" ]; then
673 find -L .
-maxdepth 1 -type f
-mmin +4320 -name "fast_import_crash_?*" -exec rm -f '{}' + ||
:
676 # Remove any stale core or *.core or core.* files that are more than 3 days old.
677 find -L .
-maxdepth 1 -type f
-mmin +4320 \
( -name "core" -o -name "*.core" -o -name "core.*" \
) \
678 -exec rm -f '{}' + ||
:
682 ## Garbage Collection Types
684 ## There are two kinds of possible garbage collection (gc) operations:
686 ## 1. A normal, full gc
689 ## If the full garbage collection interval has expired (or gc has never been
690 ## run), then a normal, full gc will take place. Otherwise, a "mini" gc will
691 ## take place if the file .needsgc exists.
693 ## A "mini" gc is similar to "git gc --auto" in that it may not end up actually
694 ## doing anything unless the right conditions are present so it's not a burden
695 ## to run it often. If the file .needsgc exists, a "mini" gc will occur at
696 ## the next opportunity.
698 ## See the docs/technical/gc.txt and docs/technical/gc-mini.txt files for more
699 ## of the gory details of how garbage collection is performed.
701 ## Note, however, that the .nogc file suppresses ALL gc activity (normal or mini).
706 cd "$cfg_reporoot/$proj.git"
707 [ -d objects
/pack
] ||
{ rm -f gfi-packs
; mkdir
-p objects
/pack
; }
708 mirror_url
="$(get_mirror_url)" ||
:
710 ! is_svn_mirror_url
"$mirror_url" || svn_mirror
=1
712 if [ -f gfi-packs
] && [ -s gfi-packs
] && is_gfi_mirror_url
"$mirror_url"; then
716 # If git config --bool --get girocco.redelta is explicitly false then automatic
717 # redelta when there are less than $var_redelta_threshold objects will be suppressed.
718 # On the other hand, if git config --get girocco.redelta is "always" then, on a full
719 # gc only, for the final repack, deltas will always be recomputed.
720 # This can be set on a per-project basis to avoid unusual pathological gc behavior.
721 # Setting this will hurt efficiency of the affected repository.
722 # Note that fast-import packs ALWAYS get new deltas regardless of this setting.
723 noreusedeltaopt
="--no-reuse-delta"
724 [ "$(git config --bool --get girocco.redelta 2>/dev/null || :)" != "false" ] || noreusedeltaopt
=
726 [ "$(git config --get girocco.redelta 2>/dev/null || :)" != "always" ] || alwaysredelta
=1
728 # Extract any -f or -F or --no-reuse-object or --no-reuse-delta options
729 # to be compatible with the old and new gc.sh versions and avoid ugly argument
730 # duplication in process lists at the same time
731 # Any options found will override the "girocco.redelta" setting
734 while [ $idx -gt 0 ]; do
743 -F|
--no-reuse-object)
751 printf >&2 '%s\n' "bad non-option argument: $opt"
752 echo >&2 "(Did you perhaps intend to use a --xxx=yyy form?)"
755 [ -z "$opt" ] ||
set -- "$@" "$opt"
757 if [ -n "$alwaysredelta" ]; then
758 noreusedeltaopt
="--no-reuse-delta"
759 [ -z "$recompress" ] || noreusedeltaopt
="--no-reuse-object"
762 trap 'e=$?; rm -f .gc_in_progress; if [ $e != 0 ]; then echo "gc failed dir: $PWD" >&2; fi' EXIT
766 # date -R is linux-only, POSIX equivalent is '+%a, %d %b %Y %T %z'
767 datefmt
='+%a, %d %b %Y %T %z'
770 if [ "${force_gc:-0}" = "0" ] && check_interval lastgc
$cfg_min_gc_interval; then
771 if [ -e .needsgc
]; then
774 progress
"= [$proj] garbage check skip (last at $(config_get lastgc))"
778 if [ -e .nogc
]; then
779 progress
"x [$proj] garbage check disabled"
782 if [ -z "$isminigc" ] && [ -e .delaygc
] && [ -e .needsgc
]; then
783 # Eligible for a full gc but .delaygc is set so it would be skipped
784 # However .needsgc is also set so transform it into a mini instead
786 progress
"~ [$proj] garbage check delayed but checking mini because .needsgc"
789 if [ -n "$isminigc" ]; then
790 # Perform a "mini" gc
791 # Note that .delaygc is ignored here as that's only intended for full gc
793 rm -f .allowgc .needsgc
794 rm -f objects
/pack
/pack-
*_
[rful
].keep
799 maintain_auto_gc_hack
800 generate_auto_gc_update
802 if [ -f .needspack
]; then
804 progress
"+ [$proj] mini garbage check ($(date))"
807 if [ -z "$cfg_delay_gfi_redelta" ] && [ -n "$gfi_mirror" ]; then
808 # $Girocco::Config::delay_gfi_redelta is false, force redeltification now
809 if [ -z "$miniactive" ]; then
811 progress
"+ [$proj] mini garbage check ($(date))"
815 if lotsa_loose_objects
; then
816 if [ -z "$miniactive" ]; then
818 progress
"+ [$proj] mini garbage check ($(date))"
822 # If there aren't at least 10 non-keep, non-bitmap, non-bndl packs then
823 # don't actually process them yet
824 lpo
="--exclude-no-idx --exclude-keep --exclude-bitmap --exclude-bndl --quiet"
825 packcnt
="$(list_packs --count $lpo objects/pack)" ||
:
826 if [ "${packcnt:-0}" -ge 10 ]; then
827 if [ -z "$miniactive" ]; then
829 progress
"+ [$proj] mini garbage check ($(date))"
831 if [ -n "$gfi_mirror" ]; then
833 packcnt
="$(list_packs --count $lpo objects/pack)" ||
:
835 # if repack_gfi_packs dropped the pack count to < 10 don't combine
836 if [ "${packcnt:-0}" -ge 10 ]; then
838 combine_small_loose_packs
839 packcnt
="$(list_packs --count $lpo objects/pack)" ||
:
841 # if we still have more than 10 packs trigger a full gc
842 if [ "${packcnt:-0}" -ge 10 ]; then
843 # We shouldn't be in a .delaygc state at this point, but if
844 # we are then nuke it because we really need a full gc now
846 git config
--unset gitweb.lastgc
848 git update-server-info
# just in case
849 progress
"- [$proj] mini garbage check triggering full gc too many packs ($(date))"
854 if [ -n "$miniactive" ]; then
855 git update-server-info
856 progress
"- [$proj] mini garbage check ($(date))"
858 progress
"= [$proj] mini garbage check nothing but crud removal to do ($(date))"
863 # Avoid unnecessary garbage collections:
864 # 1. If lastreceive is set and is older than lastgc
866 # 2. We are not a fork (! -s alternates) -OR- lastparentgc is older than lastgc
868 # If lastgc is NOT set or lastreceive is NOT set we MUST run gc
869 # If we are a fork and lastparentgc is NOT set we MUST run gc
871 # If the repo is dirty after removing any crud we MUST run gc
873 gcstart
="$(date "$datefmt")"
876 ! [ -s objects
/info
/alternates
] || isfork
=1
878 [ -z "$isfork" ] || lastparentgcsecs
="$(config_get_date_seconds lastparentgc)" ||
:
880 if lastreceivesecs
="$(config_get_date_seconds lastreceive)" &&
881 [ "${force_gc:-0}" = "0" ] &&
882 lastgcsecs
="$(config_get_date_seconds lastgc)" &&
883 [ $lastreceivesecs -lt $lastgcsecs ]; then
884 # We've run gc since we last received, so maybe we can skip,
885 # check if not fork or fork and lastparentgc < lastgc
886 if [ -n "$isfork" ]; then
887 if [ -n "$lastparentgcsecs" ] &&
888 [ $lastparentgcsecs -lt $lastgcsecs ]; then
889 # We've run gc since our parent ran gc so we can skip
893 # We don't have any alternates (we're not a forK) so we can skip
898 # Prevent any other simultaneous gc operations
901 # At this point, if .allowgc or .gc_failed exists, it's now crud to be removed
902 rm -f .allowgc .gc_failed
904 # Ideally we would do this in post-receive, but that would mean duplicating the
905 # logic so it's available in the chroot jail and that's highly undesirable
906 # Instead, since the first gc will be triggered immediately following the first
907 # push, we do the check here as it's quick and harmless if HEAD is already valid
908 check_and_set_head ||
:
910 # Always get rid of crud
913 # Always perform reflogs maintenance
918 # Always maintain auto gc hack
919 maintain_auto_gc_hack
920 generate_auto_gc_update
922 # Run 'git svn gc' now for svn mirrors
923 if [ -n "$svn_mirror" ]; then
927 # Skip the actual gc if .delaygc is set
928 if [ -e .delaygc
]; then
929 progress
"x [$proj] garbage check delayed (except for crud removal)"
934 # Do not skip gc if the repo is dirty
935 if [ -n "$skipgc" ] && ! is_dirty
; then
936 progress
"= [$proj] garbage check nothing but crud removal to do ($(date))"
937 config_set lastgc
"$gcstart"
943 if [ -n "$isfork" ] && [ -z "$lastparentgcsecs" ]; then
944 # set lastparentgc and then update gcstart to be at least 1 second later
945 config_set lastparentgc
"$gcstart"
948 if [ -z "$lastreceivesecs" ]; then
949 # set lastreceive and then update gcstart to be at least 1 second later
950 config_set lastreceive
"$gcstart"
953 if [ -n "$bumptime" ]; then
955 gcstart
="$(date "$datefmt")"
958 progress
"+ [$proj] garbage check ($(date))"
961 [ -z "$alwaysredelta" ] || newdeltas
="$noreusedeltaopt"
962 if [ -z "$newdeltas" ] && [ -n "$gfi_mirror" ]; then
963 if [ $
(list_packs
--exclude-no-idx --count objects
/pack
) -le \
964 $
(list_packs
--exclude-no-idx --count --quiet --only gfi-packs
) ]; then
965 # Don't bother with repack_gfi_packs since everything's being repacked
966 newdeltas
="--no-reuse-delta"
969 if [ -z "$newdeltas" ] && [ -n "$noreusedeltaopt" ] &&
970 [ $
(list_packs
--all --exclude-no-idx --count-objects objects
/pack
) -le $var_redelta_threshold ]; then
971 # There aren't enough objects to worry about so just redelta to get the best pack
972 newdeltas
="--no-reuse-delta"
974 if [ -z "$newdeltas" ]; then
975 # Since we're not going to recompute deltas overall, we need to do the
976 # "mini" maintenance so that we can get more optimal deltas
977 [ -z "$noreusedeltaopt" ] || make_needs_pack
979 force_single_pack_redelta
=
980 [ -n "$gfi_mirror" ] ||
[ -n "$svn_mirror" ] || force_single_pack_redelta
=1
981 [ -z "$noreusedeltaopt" ] || combine_small_packs
$force_single_pack_redelta
982 [ -z "$noreusedeltaopt" ] || combine_small_loose_packs
$force_single_pack_redelta
986 ## Safe Pruning In Forks
988 ## We are about to perform garbage collection. We do NOT use the "git gc" or
989 ## the "git repack" commands directly as they do not provide enough control over
990 ## the fine details. However, we DO maintain a "gc.pid" file during our garbage
991 ## collection so that a simultaneous "git gc" by an administrator will be
992 ## blocked (and similarly we refuse to start garbage collection if we cannot
993 ## create the "gc.pid" file).
995 ## When we say "gc" in the below description we are referring to our "gc.sh"
996 ## script, NOT the "git gc" command.
998 ## If the project we are running garbage collection (gc) on has any forks we
999 ## must be careful not to remove any objects that while no longer referenced by
1000 ## this project (the parent) are still referenced by one or more forks (the
1001 ## children) otherwise the children will become corrupt and we can't abide
1002 ## corrupt children.
1004 ## One way to accomplish this is to simply hard-link all currently existing
1005 ## loose objects and packs in the parent into all the children that refer to the
1006 ## parent (via a line in their objects/info/alternates file) before beginning
1007 ## the gc operation and then relying on a subsequent gc in the child to clean up
1008 ## any excess objects/packs. We used to use this strategy but it's very
1009 ## inefficient because:
1011 ## 1. The disk space used by the old pack(s)/object(s) will not be reclaimed
1012 ## until all children (and their children, if any) run gc by which time
1013 ## it's quite possible the topmost parent will have run gc again and
1014 ## hard-linked yet another old pack down to its children (not to mention
1017 ## 2. When using the "-A" option with "git repack", any new objects in the
1018 ## parent that are not referenced by children will continually get
1019 ## exploded out of the hard-linked pack in the children whenever the
1022 ## 3. To avoid suboptimal and/or unnecessarily many packs being hard-linked
1023 ## into child forks, we must run the "mini" gc maintenance before we
1024 ## perform the hard-linking into the children which provides yet another
1025 ## source of inefficiency.
1027 ## While we were still using the "-A" option to "git repack" (that was not
1028 ## always the case) to guarantee we can access old ref values for long enough
1029 ## to send out a meaningful mail.sh notification, another, more efficient,
1030 ## option became available to prevent corruption of child forks that continue
1031 ## to refer to objects that are no longer reachable from any ref in the parent.
1033 ## The only things that need be copied (or hard-linked) into the child fork(s)
1034 ## are those objects that have become unreachable from any ref in the parent.
1036 ## When we were using the "git repack -A -d" + "git prune --expire=1.day.ago"
1037 ## technique, the only objects that could ever be removed were loose objects
1038 ## that "git prune" determined were expired. In that case, loose objects were
1039 ## all that need be hard-linked down to child forks in order to avoid
1040 ## corruption of any child fork(s).
1042 ## The "git repack -A -d" + "git prune --expire=1.day.ago" + hard-linking loose
1043 ## objects to child forks technique remains fundamentally sound from the
1044 ## perspective of supporting simultaneous gc and push and keeping newly
1045 ## unreachable objects around long enough to be sure we can send out meaningful
1046 ## ref change notifications and never corrupting any child forks and never
1047 ## persisting the lifetime of large old packs containing mostly duplicate or
1048 ## unreachable objects as gc percolates through a project's entire fork tree.
1050 ## However, that technique suffers from one potential prodigious pitfall.
1052 ## Unreachable objects come flying out of their packs to splatter all over the
1053 ## objects subdirectories possibly creating a huge, inefficient mess.
1055 ## Often this is not an issue. Even with a lot of rebasing going on, usually
1056 ## the only objects that will splatter are some commits, trees and the odd blob
1057 ## here and there. Not enough to be overly concerned about.
1059 ## However, for the reppository that frequently experiences a lot of non-fast-
1060 ## forward updates and/or outright ref deletion, the number of objects suddenly
1061 ## popping out of their packs at "git repack -A -d" time can be overwhelming.
1063 ## To avoid this issue we now use a four phase pack creation strategy.
1064 ## This will result in creation of up to four packs (instead of at most one).
1066 ## I. A complete pack (with bitmaps if appropriate) gets created including
1067 ## only "reachable" objects from all refs/... refs plus HEAD. This will
1068 ## also serve as the virtual bundle for the repository.
1070 ## II. A pack of recently-became-unreachable objects and friends is created.
1071 ## (The "friends" are ref logs, linked working tree HEADs and indicies.)
1072 ## Because both the pre-receive and update.sh script record all ref
1073 ## changes we can easily choose the cut off point for "recently".
1074 ## It is only the fact we maintain those logs in the reflogs subdirectory
1075 ## that allows this step to be possible.
1077 ## III. If the repository has any forks with a non-zero length alternates file,
1078 ## yet another pack of "--keep-unreachable" objects is generated that will
1079 ## not actually be kept in the parent, but hard-linked into all the forks.
1081 ## IV. Finally, after running "git prune-packed", any remaining loose objects
1082 ## are migrated into a pack of their own.
1084 ## We then remove any non-.keep packs that existed before we started the
1085 ## process being careful to keep any same-pack pushes for the "Push Pack Redux"
1086 ## race condition (see README-GC).
1088 ## By using "git pack-objects" directly we are able to accomplish this with
1089 ## very little additional effort.
1091 ## The packs produced by (III) are treated almost like ".keep" packs by child
1092 ## forks in that the objects in them are never repacked into any other
1093 ## "--keep-unreachable" packs (but they can migrate into phase I or II packs)
1094 ## and those phase III packs are then hard-linked into any grandchild forks.
1096 ## This avoids the space explosion that could occur if each fork level ended
1097 ## up duplicating the "--keep-unreachable" pack space by repacking those
1098 ## objects (essentially breaking the hard-link to the single copy of those
1101 ## While it is true that each level of forks could potentially add yet another
1102 ## phase III pack to be hard-linked down to its children, such packs will only
1103 ## include unreachable objects not already in any phase III packs that were
1104 ## received from the parent.
1106 ## The space for the phase III packs will not be reclaimed until the gc
1107 ## finishes percolating through the entire "fork tree" of a project.
1109 ## This is not much different than the "git repack -A -d" situation where
1110 ## all the loose objects are hard-linked down into child forks. In that
1111 ## case forks that actually need any of those objects could gradually reduce
1112 ## the number of objects hard-linked into deeper fork levels.
1114 ## The difference with a phase III "--keep-unreachable" pack is that there
1115 ## cannot be any gradual reduction like that since it would require repacking
1116 ## the pack and breaking the hard-link thereby increasing storage space. The
1117 ## storage will instead always be reclaimed all at once when all of the
1118 ## projects in the "fork tree" complete their gc.
1120 ## However, the belief is that the huge space win by having all the
1121 ## unreachable objects packed up together far eclipses (when many objects are
1122 ## involved, the single-pack version can end up using 1/20th or less of the
1123 ## disk space compared to having them all as loose objects) any brief minor
1124 ## space savings that might occur under the "git repack -A -d" loose object
1125 ## system prior to the gc collection completing for all the projects in the
1130 ## utility functions
1134 find -L "$1" -maxdepth 1 -type f
! -perm -ug+w \
1135 -name "pack-$octet20*.pack" -exec chmod ug
+w
'{}' + ||
:
1139 if [ -s "$1" ]; then
1141 export GIT_INDEX_FILE
1142 git write-tree
2>/dev
/null ||
:
1143 unset GIT_INDEX_FILE
1147 get_detached_head
() {
1148 if [ -s "$1" ] && read -r _head
<"$1" 2>/dev
/null
; then
1149 case "$_head" in $octet20*)
1155 # compute_extra_reachables
1156 # create lines suitable for a packed-refs file mentioning all the
1157 # other refs we might like to keep.
1158 # the current directory MUST be set to the repository's --git-dir
1159 # the following are included:
1160 # * refs mentioned in repack/packed-refs.extra (if it exists)
1161 # * refs mentioned in reflogs/... files
1162 # * tree(s) created from index file(s)
1163 # * detached linked working tree heads
1164 # Resulting objects are tested for existence and uniqified then output
1165 # one per line under a refs/z* namespace
1166 compute_extra_reachables
() {
1168 if [ -s repack
/packed-refs.extra
]; then
1169 LC_ALL
=C
sed <repack
/packed-refs.extra
-n \
1170 -e 's/^\([0-9A-Fa-f][0-9A-Fa-f]*\).*$/\1/p' \
1171 -e 's/^\^\([0-9A-Fa-f][0-9A-Fa-f]*\).*$/\1/p'
1173 digits8
='[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'
1174 find -L reflogs
-mindepth 1 -maxdepth 1 -type f
-name "$digits8*" -exec gzip -c -d -f '{}' + |
1175 awk '{print $2; print $3}'
1176 ! [ -f index
] || get_index_tree index
1177 if [ -d worktrees
]; then
1178 find -L worktrees
-mindepth 2 -maxdepth 2 -name HEAD
-type f
-print |
1179 while read -r lwth
; do
1180 get_detached_head
"$lwth"
1181 get_index_tree
"${lwth%HEAD}index"
1184 } | LC_ALL
=C
sort -u |
1185 git cat-file
${var_have_git_260:+--buffer} --batch-check"${var_have_git_185:+=%(objectname)}" |
1186 awk '!/missing/ {num++; print $1 " " "refs/" substr("zzzzzzzzzzzz", 1, length(num)) "/" num}'
1193 # Everything else is more efficient if we do this first
1194 # The "--prune" option is the default since v1.5.0 but it serves as "documentation" here
1195 git pack-refs
--all --prune
1196 [ -e packed-refs
] ||
>>packed-refs
# should never happen...
1198 # If we have a logs directory or a worktrees directory expire the ref logs now
1199 # Note that Git itself does not use either --rewrite or --updateref, so neither do we
1200 ! [ -d logs
] && ! [ -d worktrees
] ||
eval git reflog expire
--all "${quiet:+>/dev/null 2>&1}" ||
:
1203 ! [ -e .gc_failed
] ||
exit 1
1204 rm -f .gc_in_progress
# make sure
1205 touch .gc_in_progress
# it's truly fresh
1206 rm -f bundles
/* objects
/pack
/pack-
*.bndl
1207 # These only exist for a brief time before the packs loose their _f suffix
1208 # "Push Pack Redux" does not apply to these since they were only ever present with _f
1209 rm -f objects
/pack
/pack-
*_f.keep
1210 # This is perhaps a bit aggressive in that if we're suffering from "Push Pack Redux"
1211 # and somehow we get run again immediately after the run where "Push Pack Redux" happened
1212 # and we have garbage collection forced, there's just the barest, almost negligible,
1213 # possibility that the "Push Pack Redux" ref updates _still_ have not happened and we
1214 # should not be removing _r .keep files. None of the normal Girocco processing can
1215 # cause this. The second run of this script would have to use the force gc option
1216 # for it to even be possible in the first place. What's much more likely is that
1217 # the initial run of this script was somehow interrupted in the middle before it
1218 # could get rid of the _r .keep file itself in which case it's better to get rid of
1219 # it now to avoid keeping something around that would perturb our nice and neat gc
1220 rm -f objects
/pack
/pack-
*_r.keep
1221 # We will add .keep files for _u and _l packs if and when we run phase III
1222 # Otherwise they need to not have any .keep files during phases I and II
1223 rm -f objects
/pack
/pack-
*_
[ul
].keep
1225 # We need to make sure that any non-Girocco (barely tolerated) Git object creation
1226 # activity will be able to "freshen" the pack containing a pre-existing object
1227 # that's being written. This really should not be necessary as the pre-receive
1228 # hook should make sure this takes place for any incoming pushes.
1229 # However, do it here anyway just in case.
1230 make_packs_ugw objects
/pack
1232 # This is only effective with Git v2.3.5 and later and it will only matter when
1233 # we are using one of the "internal_rev_list" modes of pack-objects
1234 # (the combine-packs.sh script never uses any of those modes)
1235 # The "git repack" and "git prune" commands always set this internally themselves
1236 # It makes no difference if there's no repository corruption
1237 GIT_REF_PARANOIA
=1 && export GIT_REF_PARANOIA
1239 # All of the options we might want to use with pack-objects were supported
1240 # at some point prior to Git version v1.6.6 which is the minimum version that
1241 # Girocco now requires. Except for one (--use-bitmap-index). Several of them
1242 # are "boiler plate" options we always want to use so we bundle them up here.
1243 pkopt
="--delta-base-offset --keep-true-parents --non-empty --all-progress-implied"
1244 # We want to use --include-tag, but before Git v2.10.1 it would leave out
1245 # "middle" tags (e.g. a tag of a tag of a commit would omit the tagged tag)
1246 # See http://repo.or.cz/git.git/b773ddea2cd3b08c for details
1247 # ("pack-objects: walk tag chains for --include-tag", 2016-09-07, v2.10.1)
1248 # This is not a free check as it matches all refs against refs/tags/ then
1249 # peels all the annotated tags and checks for inclusion. The situation in
1250 # which it would add a tag that was not already included by a reachability
1251 # trace that included tag starting points can only occur if a new tag gets
1252 # pushed during gc pointing to something that would have been packed anyway.
1253 # But, it could happen and, really, compared to gc as a whole it's not that
1254 # expensive to perform (provided we do not get an unconnected pack).
1255 [ -z "$var_have_git_2101" ] || pkopt
="$pkopt --include-tag"
1256 pkopt
="$pkopt ${quiet:---progress} $packopts"
1258 # The git pack-objects command only supports bitmaps if all objects are being
1259 # packed (the "--all" option) and the "--stdout" option is NOT being used.
1260 # Additionally, while packing, if any encountered reachable objects are
1261 # determined to be "not wanted" then no bitmap index will be written anyway.
1262 # While it is theoretically possible that a project with a non-empty alternates
1263 # file ends up packing all objects (because it does not actually use any of the
1264 # objects found in the alternates), it's very unlikely. And, in the unlikely
1265 # event that did occur, clients would see a message about only using one bitmap
1266 # because Git can only use one bitmap at a time and at least one of the
1267 # alternates is bound to have a bitmap. Therefore if we see a non-empty
1268 # alternates file, we disable writing bitmaps which avoids the warning and any
1269 # possibility of a client warning as well. Also if we are running anything
1270 # before Git v2.1.0 (the effective version for repack.writeBitmaps=true) then
1271 # we also always disable bitmap writing.
1273 [ -z "$var_have_git_210" ] || wbmopt
="--write-bitmap-index"
1274 # More recent versions of pack-objects have optimizations when not using the
1275 # --local option. If we do not have any alternates it's a pointless option.
1276 # If we do have alternates we need to skip writing a bitmap and we cannot
1277 # have a bundle since it must contain all objects.
1278 if [ -n "$isfork" ]; then
1292 [ -n "$wbmopt" ] || wbmstr
=" (bitmaps disabled)"
1293 progress
"~ [$proj] running primary full gc pack-objects$wbmstr ($(date))"
1296 ! has_forks_with_alternates
"$proj" || gotforks
=1
1298 # To avoid "Push Pack Redux" (see README-GC), after collecting the initial
1299 # preexisting non-keep pack list, we rename them so that an incoming push
1300 # pack cannot possibly experience a pack name collision. Git does not require
1301 # use of the "default" pack names, simply that the proper extensions are used.
1302 # We rename to insert an "_r" just before the extension to avoid "Push Pack Redux"
1303 # name collisions. Later on we may create an "unreachable" pack for hard-linking
1304 # down into forks and it will have an "_u" inserted just before its extension.
1305 packlist
="$(list_packs -C objects/pack --all --exclude-no-idx --exclude-keep --quiet .)" ||
:
1307 for oldpack
in $packlist; do
1308 oldpack
="${oldpack%.pack}"
1309 [ -f "objects/pack/$oldpack.pack" ] ||
{
1310 echo >&2 "[$proj] unable to list old pack files"
1313 case "$oldpack" in pre-auto-gc-
[12])
1314 # we never disturb pre-auto-gc-1 or pre-auto-gc-2 packs
1317 oldpackhex
="${oldpack#pack-}"
1318 if [ "${oldpackhex#*[!0-9a-fA-F]}" != "$oldpackhex" ]; then
1319 # names not exclusively hexadecimal do not need renaming
1322 # _l packs are treated like still-unpacked loose objects
1325 # _f packs can only be left over from a previously interrupted gc;
1326 # they need to be renamed to _r now so they're not confused with
1327 # any freshly generated "final" packs (and we already removed
1328 # any pre-existing *_f.keep files so we're good to go)
1331 oldpacks
="${oldpacks:+$oldpacks }$oldpack"
1335 rename_pack
"objects/pack/$oldpack" "objects/pack/${oldpack%_f}_r" ||
{
1336 echo >&2 "[$proj] unable to rename old pack files"
1339 # If the oldpack has a .keep now it means a "Push Pack Redux" is actually
1340 # in progress at this moment and we need to .keep the renamed pack,
1341 # otherwise no "Push Pack Redux" has started yet or it has already finished.
1342 # In either case we're okay because if it's just finished then all ref
1343 # changes have already been made so we don't need a .keep and we will
1344 # see the ref changes and grab all the objects via a reachability trace.
1345 # If it hasn't started yet that's okay because we're done moving that
1346 # name so a complete pack will appear under the old name that we'll
1348 if [ -f "objects/pack/$oldpack.keep" ]; then
1349 echo "Push Pack Redux" >"objects/pack/${oldpack%_f}_r.keep"
1351 oldpacks
="${oldpacks:+$oldpacks }${oldpack%_f}_r"
1355 # We wish to keep deltas from our last full pack so if we're not redeltaing
1356 # then make sure the .pack associated with the .bitmap has a newer mod time
1357 # (If there is no .bitmap then touch the pack with the most objects instead.)
1358 if [ -z "$newdeltas" ]; then
1359 bmpack
="$(list_packs --exclude-no-bitmap --exclude-no-idx --max-matches 1 objects/pack)"
1360 [ -n "$bmpack" ] || bmpack
="$(list_packs --exclude-no-idx --max-matches 1 --object-limit -1 --include-boundary objects/pack)"
1361 if [ -n "$bmpack" ] && [ -f "$bmpack" ] && [ -s "$bmpack" ]; then
1363 touch -c "$bmpack" 2>/dev
/null ||
:
1364 # We must touch .gc_in_progress here to avoid $bmpack looking
1365 # like it's been "freshened" when redundant packs are removed
1366 # It's okay if they have the same mod time, but POSIX does not
1367 # guarantee an ordering for the "touching" that occurs which is
1368 # why this must be a separate command but needs no "sleep 1"
1369 touch .gc_in_progress
1373 # Now we need to make sure that any "freshening" that takes place will actually
1374 # result in a "newer" modification time than the .gc_in_progress file now has
1377 # We run git pack-objects from the repack subdirectory so we can force
1378 # optimized packs to be generated even for repositories that do not have any
1380 packs
="$(git --git-dir=repack pack-objects </dev/null \
1381 $pkopt --all $newdeltas $lclopt ${wbmopt:---honor-pack-keep} "$@
" repack/alt/pack/pack)"
1383 [ $packcnt -eq 1 ] || makebndl
=
1389 progress
"~ [$proj] running supplementary gc pack-objects ($(date))"
1391 # Add the "supplementary" refs
1392 compute_extra_reachables
>>repack
/packed-refs
1394 # Subtract the primary refs
1395 GIT_ALTERNATE_OBJECT_DIRECTORIES
="$PWD/repack/alt"
1396 export GIT_ALTERNATE_OBJECT_DIRECTORIES
1398 # For this one we MUST use --local and MUST NOT use --write-bitmap-index
1399 # However, if there is a "logs" subdirectory we need to use --reflog
1400 # We do add it, just in case, if the linked working trees dir is present
1401 # We do not add --indexed-objects as that requires v2.2.0 and it's unclear
1402 # if it properly includes linked working tree index files or not. The
1403 # above compute_extra_reachables has already included all index trees (thereby
1404 # providing proper --indexed-objects support for all Git versions) making the
1405 # option completely unnecessary.
1407 ! [ -d logs
] && ! [ -d worktrees
] || rflopt
=--reflog
1408 spacks
="$(git --git-dir=repack pack-objects </dev/null \
1409 $pkopt --honor-pack-keep --all $rflopt $newdeltas --local "$@
" repack/alt/pack/pack)"
1415 # There's nothing to do for Phase III unless we have forks that refer to our
1416 # project from their alternates file
1419 if [ -n "$gotforks" ]; then
1421 progress
"~ [$proj] running keep-unreachable gc pack-objects for forks ($(date))"
1423 # If we are a fork, any pre-existing _u packs need to have a .keep
1424 # for this phase and be added to the hlpacks list otherwise (we are
1425 # not a fork) pre-existing _u packs are anomalies to be treated like
1426 # regular non-_u packs
1427 if [ -n "$isfork" ]; then
1428 for upack
in $
(find -L objects
/pack
-mindepth 1 -maxdepth 1 -name "pack-$octet20*_[ul].pack" -print); do
1429 upack
="${upack%.pack}"
1430 [ -e "$upack.keep" ] ||
echo "unreachable" >"$upack.keep"
1431 case "$upack" in *_l
);;*)
1432 hlpacks
="${hlpacks:+$hlpacks }${upack#objects/pack/pack-}"
1436 # Using either --no-reuse-delta or --no-reuse-object together with the
1437 # --keep-unreachable option is a very, very, very bad idea when good
1438 # packs are the desired outcome. If newdeltas are being generated
1439 # then we pack to a temp name, and use combine-packs.sh to get a better
1440 # pack as the result to avoid making a bad --keep-unreachable pack
1442 [ -z "$newdeltas" ] || pfx
="ku"
1443 upacks
="$(git --git-dir=repack pack-objects </dev/null \
1444 $pkopt --honor-pack-keep --all $rflopt --keep-unreachable --local "$@
" repack/alt/pack/${pfx}pack)"
1445 if [ -n "$upacks" ] && [ -n "$newdeltas" ]; then
1446 progress
"~ [$proj] rebuilding keep-unreachable pack deltas"
1449 printf "repack
/alt
/pack
/${pfx}pack-
%s.pack
\n" $oldupacks |
1450 run_combine_packs --names --weak-naming --non-empty --all-progress-implied ${quiet:---progress} \
1451 $packopts $newdeltas "$@
" repack/alt/pack/pack)"
1452 eval rm -f "$(printf \""repack
/alt
/pack
/${pfx}pack-
%s.
*"\"" " $oldupacks)"
1454 for upack
in $upacks; do
1455 rename_pack
"repack/alt/pack/pack-$upack" "repack/alt/pack/pack-${upack}_u"
1457 rm -f objects
/pack
/pack-
*_
[ul
].keep
1458 [ -z "$hlpacks" ] && [ -z "$upacks" ] ||
1459 progress
"~ [$proj] hard-linking keep-unreachable pack(s) into immediate child forks"
1461 # We have to update the lastparentgc time in the child forks even if they do not get any
1462 # new "unreachable packs" because they need to run gc just in case the parent now has some
1463 # objects that used to only be in the child so they can be removed from the child.
1464 # For example, a "patch" might be developed first in a fork and then later accepted into
1465 # the parent in which case the objects making up the patch in the child fork are now
1466 # redundant (since they're now in the parent as well) and need to be removed from the
1467 # child fork which can only happen if the child fork runs gc.
1468 lastparentgc
="$(date "$datefmt")"
1470 # It is enough to copy objects just one level down and get_repo_list
1471 # takes a regular expression (which is automatically prefixed with '^')
1472 # so we can easily match forks exactly one level down from this project
1474 get_repo_list
"$forkdir/[^/:][^/:]*:" |
1476 # Ignore forks that do not exist or are symbolic links
1477 ! [ -L "$cfg_reporoot/$fork.git" ] && [ -d "$cfg_reporoot/$fork.git" ] ||
1479 # Or do not have a non-zero length alternates file
1480 [ -s "$cfg_reporoot/$fork.git/objects/info/alternates" ] ||
1483 # Match hlpacks in parent project if any
1484 if [ -n "$hlpacks" ]; then
1485 mkdir
-p "$cfg_reporoot/$fork.git/objects/pack"
1486 eval ln -f "$(printf '"objects
/pack
/pack-
%s.pack
" ' $hlpacks)" \
1487 "$(printf '"objects
/pack
/pack-
%s.idx
" ' $hlpacks)" \
1488 '"$cfg_reporoot/$fork.git/objects/pack/"'
1491 # Match upacks in repack/alt area if any
1492 if [ -n "$upacks" ]; then
1493 mkdir
-p "$cfg_reporoot/$fork.git/objects/pack"
1494 eval ln -f "$(printf '"repack
/alt
/pack
/pack-
%s_u.pack
" ' $upacks)" \
1495 "$(printf '"repack
/alt
/pack
/pack-
%s_u.idx
" ' $upacks)" \
1496 '"$cfg_reporoot/$fork.git/objects/pack/"'
1499 if ! [ -e "$cfg_reporoot/$fork.git/.needsgc" ]; then
1500 # Trigger a mini gc in the fork if it now has too many packs
1501 packs
="$(list_packs --quiet --count --exclude-no-idx --exclude-keep "$cfg_reporoot/$fork.git
/objects
/pack
")" ||
:
1502 if [ -n "$packs" ] && [ "$packs" -ge 20 ]; then
1503 >"$cfg_reporoot/$fork.git/.needsgc"
1506 [ -z "$runupdate" ] || git
--git-dir="$cfg_reporoot/$fork.git" update-server-info
1507 # Update the fork's lastparentgc date (must be more recent than $gcstart)
1508 git
--git-dir="$cfg_reporoot/$fork.git" config gitweb.lastparentgc
"$lastparentgc"
1512 # Now move any primary/supplementary packs back into objects/pack
1513 # then drop any "unfreshened" redundant packs and clear repack/alt
1515 # First make sure the primary pack(s) have the most recent mod time
1516 if [ -n "$packs" ]; then
1517 [ -z "$spacks" ] ||
sleep 1
1518 printf 'repack/alt/pack/pack-%s.pack\n' $packs |
xargs touch -c 2>/dev
/null ||
:
1521 # Move the packs into place but with a _f suffix and a .keep file for now
1522 for pack
in $packs $spacks; do
1523 rename_pack
"repack/alt/pack/pack-$pack" "objects/pack/pack-${pack}_f"
1524 [ -e "objects/pack/pack-${pack}_f.keep" ] ||
1525 echo "final" >"objects/pack/pack-${pack}_f.keep"
1528 # It's possible that one of the $oldpacks had a .bitmap, got renamed (along
1529 # with its .bitmap) and then got "freshened" causing us to not remove it
1530 # However, if $wbmopt is set we most likely now have TWO .bitmap packs!
1531 # This can produce ugly warnings we don't want and possibly get the wrong
1532 # bitmap used since only one .bitmap file can ever be used by Git.
1533 # If this has happened, the .bitmap we want to discard will always have
1534 # an _r suffix so we can just zap any such now since it will leave the pack.
1535 [ -z "$wbmopt" ] ||
rm -f objects
/pack
/pack-
*_r.bitmap ||
:
1537 # Remove the redundant packs that have not since been "freshened"
1538 # This does not completely eliminate the race condition window (Girocco's own
1539 # activites -- gc/fetch/receive are immune to the race) but it substantially
1540 # shrinks it down to just the time after the find but before the following rm
1542 [ -z "$oldpacks" ] ||
1543 printf 'objects/pack/%s.pack\n' $oldpacks |
1544 LC_ALL
=C
sort >repack
/oldpacks
1545 find -L objects
/pack
-maxdepth 1 -type f
-name "pack-$octet20*.pack" -newer .gc_in_progress
-print |
1546 LC_ALL
=C
sort >repack
/freshened
1547 deadpacks
="$(LC_ALL=C join -v 1 repack/oldpacks repack/freshened | LC_ALL=C sed 's/\.pack$//')"
1548 [ -z "$deadpacks" ] ||
1549 eval echo "$(printf '"%s
".* ' $deadpacks)" |
xargs rm -f ||
:
1551 # No need for this anymore
1552 rm -rf repack
/alt objects
/pack
/repack
1553 unset GIT_ALTERNATE_OBJECT_DIRECTORIES
1559 progress
"~ [$proj] running gc prune-packed"
1561 # We do not want the redundant packs or any new "--keep-unreachable" pack(s) to be
1562 # present while running prune-packed. We try to guarantee that any loose object
1563 # (or any object present in a pack with an _l suffix which was created by mini gc)
1564 # that's unreachable persists for at least one $Girocco::Config::min_gc_interval
1565 # (not withstanding administrator interference to force earlier gc to occur).
1566 # If we were to include the redundant/keep-unreachable pack(s) when running
1567 # prune-packed and a loose unreachable object happened to be duplicated in one
1568 # of them we would end up removing it too soon and void our guarantee.
1569 git prune-packed
$quiet
1571 progress
"~ [$proj] running loose objects gc pack-objects ($(date))"
1573 # Although Git v2.10.0 and later support a --pack-loose-unreachable option,
1574 # we MUST NOT use it for these reasons:
1575 # 1) We're not interested in expensive "unreachable" at this point, only "loose"
1576 # 2) It produces simply horrid packs about 3.8x times larger than they should be
1577 # 3) We don't require anything more than Git v1.6.6
1578 # The only way we could see any _o pack files at this point is if one got
1579 # "freshened" while we were running gc. If that happens then it gets to live on
1580 # until the next full gc and we need to include it in the loose repack here.
1581 lpacks
="$(list_packs --exclude-no-idx --exclude-no-sfx _l --exclude-no-sfx _o --quiet objects/pack |
1582 run_combine_packs --replace --names --loose --weak-naming --non-empty --honor-pack-keep \
1583 --all-progress-implied ${quiet:---progress} $packopts $newdeltas "$@
")"
1585 if [ -n "$lpacks" ]; then
1586 # Make sure any primary pack(s) have a more recent mod time than "unreachable" objects packs
1587 if [ -n "$packs" ]; then
1589 printf 'objects/pack/pack-%s_f.pack\n' $packs |
xargs touch -c 2>/dev
/null ||
:
1591 # We need to identify these packs later so we don't combine_packs them
1592 for objpack
in $lpacks; do
1593 rename_pack
"objects/pack/pack-$objpack" "objects/pack/pack-${objpack}_o" ||
:
1597 # Polish up the final packs now
1598 rm -f objects
/pack
/pack-
*_f.keep
1599 for pack
in $packs $spacks; do
1600 rename_pack
"objects/pack/pack-${pack}_f" "objects/pack/pack-$pack"
1603 if [ -n "$lpacks" ]; then
1604 # Finally zap the corresponding loose objects
1605 progress
"~ [$proj] running packed loose objects gc prune-packed"
1606 git prune-packed
$quiet
1609 ! [ -e .gc_failed
] ||
exit 1
1610 # These, if they exist, are now meaningless and need to be removed
1611 rm -f gfi-packs .needsgc .needspack .needspackgc
1613 # Make sure this stays up to date
1614 git update-server-info
1616 # We must make loose objects group writable so that they
1617 # can be freshened by other pushers. Technically we need only do this for
1618 # push projects but to enable mirror projects to be more easily converted to
1619 # push projects, we go ahead and do it for all projects.
1620 # By the time we get here we really shouldn't have any of these, but just in case.
1621 { find -L objects
/$octet -type f
-name "$octet19*" -exec chmod ug
+w
'{}' + ||
:; } 2>/dev
/null
1623 # darcs:// mirrors have a xxx.log file that will grow endlessly
1624 # if this is a mirror and the file exists, shorten it to 10000 lines
1625 # also take this opportunity to optimize the darcs repo
1626 if ! [ -e .nofetch
] && [ -n "$cfg_mirror" ]; then
1627 url
="$(config_get baseurl)" ||
:
1628 case "$url" in darcs
://*)
1629 if [ -n "$cfg_mirror_darcs" ]; then
1631 basedarcs
="$(basename "${url#darcs:/}")"
1632 if [ -f "$basedarcs.log" ]; then
1633 tail -n 10000 "$basedarcs.log" >"$basedarcs.log.$$"
1634 mv -f "$basedarcs.log.$$" "$basedarcs.log"
1636 if [ -d "$basedarcs.darcs" ]; then
1638 cd "$basedarcs.darcs"
1639 # without show_progress suppress non-error output
1640 [ "${show_progress:-0}" != "0" ] ||
exec >/dev
/null
1641 # Note that this does not optimize _darcs/inventories/ :(
1649 # Create a matching .bndl header file for the all-in-one pack we just created
1650 # but only if we're not a fork (otherwise the bundle would not be complete)
1651 # and we are running at least Git version 1.7.2 (pack_is_complete always fails otherwise)
1652 if [ -n "$makebndl" ] && [ -n "$var_have_git_172" ]; then
1653 # There should only be one pack in $packs but do some checking...
1654 # The one we just created will have a .idx and will NOT have a .keep
1655 progress
"~ [$proj] creating downloadable bundle header"
1658 IFS
= read -r curhead
<repack
/HEAD.orig ||
:
1660 [ -s "objects/pack/pack-$packs.pack" ] &&
1661 [ -s "objects/pack/pack-$packs.idx" ] &&
1662 ! [ -e "objects/pack/pack-$packs.keep" ] &&
1663 pkhead
="$(pack_is_complete "$PWD/objects
/pack
/pack-
$packs.pack
" \
1664 "$PWD/repack
/packed-refs.orig
" "$curhead")"
1666 pkbase
="objects/pack/pack-$packs"
1668 if [ -n "$pkbase" ] && [ -n "$pkhead" ]; then
1671 case "$curhead" in "ref: refs/"?
*|
"ref:refs/"?
*|
"refs/"?
*)
1672 symref
="${curhead#ref:}"
1673 symref
="${symref# }"
1676 [ -z "$cfg_httpbundleurl" ] || bndlurl
=" url=$cfg_httpbundleurl/$proj.git/clone.bundle"
1677 echo "# v2 git bundle"
1678 LC_ALL
=C
sed -ne "/^$octet20$hexdig* refs\/[^ $tab]*\$/ p" <repack
/packed-refs.orig
1679 if [ -n "$symref" ]; then
1680 printf "$pkhead HEAD\0symref=HEAD:%s%s\n" "$symref" "$bndlurl"
1682 if [ -n "$bndlurl" ]; then
1683 printf "$pkhead HEAD\0%s\n" "${bndlurl:# }"
1690 bndletag
="$("$cfg_basedir/bin
/rangecgi
" --etag -m 1 "$pkbase.bndl
" "$pkbase.pack
")" ||
:
1691 bndlsha
="$(printf '%s' "$bndletag" | git hash-object --stdin)" ||
:
1692 if [ -n "$bndletag" ]; then
1693 case "$bndlsha" in $octet20*)
1694 bndlshatrailer
="${bndlsha#????????}"
1695 bndlshaprefix
="${bndlsha%$bndlshatrailer}"
1696 bndlname
="$(TZ=UTC date +%Y%m%d_%H%M%S)-${bndlshaprefix:-0}"
1697 [ -d bundles
] || mkdir bundles
1698 echo "${pkbase#objects/pack/}.bndl" >"bundles/$bndlname"
1699 echo "${pkbase#objects/pack/}.pack" >>"bundles/$bndlname"
1700 ln -s -f -n "$bndlname" bundles
/latest
1706 # Record the size of this repo as the sum of its clone packed-refs + *.pack sizes as 1024-byte blocks
1707 eval "reposizek=$(( $(
1708 echo 0 $(du -k repack/packed-refs.orig $(printf 'objects/pack/pack-%s.pack ' $packs) 2>/dev/null |
1709 LC_ALL=C awk '{print $1}') |
1710 LC_ALL=C sed -e 's/ / + /g') ))"
1711 config_set_raw girocco.reposizek
"${reposizek:-0}"
1713 # Now we're finally done with this
1716 # We didn't used to do anything about rerere or worktrees but we're
1717 # trying to make nice with linked working trees these days :)
1718 # Maybe even non-bare repositories too, but *shush* about those ;)
1719 if [ -n "$var_have_git_250" ] && [ -d worktrees
]; then
1720 # The value "3.months.ago" is hard-coded into gc.c rather than
1721 # having the default be in worktree.c so we must provide it if
1722 # we get nothing out of the gc.worktreePruneExpire config item
1723 # Prior to Git v2.6.0 the config item was gc.pruneworktreesexpire
1724 # however we just always use the newer name no matter what Git version
1725 expiry
="$(git config --get gc.worktreePruneExpire 2>/dev/null)" ||
:
1726 eval git worktree prune
--expire '"${expiry:-3.months.ago}"' "${quiet:+>/dev/null 2>&1}" ||
:
1728 # git rerere does it right and handles its own default/config'd expiration values
1729 ! [ -d rr-cache
] ||
eval git rerere gc
"${quiet:+>/dev/null 2>&1}" ||
:
1731 # We use $gcstart here to avoid a race where a push occurs during the gc itself
1732 # and the next future gc could be incorrectly skipped if we used the current
1733 # timestamp here instead
1734 config_set lastgc
"$gcstart"
1737 progress
"- [$proj] garbage check ($(date))"