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[alt-git.git] / whats-cooking.txt

To: git@vger.kernel.org
Bcc: lwn@lwn.net
Subject: What's cooking in git.git (Jul 2015, #03; Fri, 10)
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What's cooking in git.git (Jul 2015, #03; Fri, 10)
--------------------------------------------------

Here are the topics that have been cooking.  Commits prefixed with
'-' are only in 'pu' (proposed updates) while commits prefixed with
'+' are in 'next'.

As there is at least one new topic in 2.5-rc that has a real and
severe breakage, we may need to delay the final by at least a few
weeks.  Note that when I say "Will merge to 'master'", I am not
saying if that happens before or after the upcoming release, at
least not yet ;-).

Projects from GSoC students and Ensimag students have also been a
pleasure to work with.  I'd have to say that this year is much
better than some previous years.

You can find the changes described here in the integration branches
of the repositories listed at

    http://git-blame.blogspot.com/p/git-public-repositories.html

--------------------------------------------------
[Graduated to "master"]

* cb/rebase-am-exit-code (2015-07-08) 1 commit
  (merged to 'next' on 2015-07-09 at ca9b7e1)
 + rebase: return non-zero error code if format-patch fails

 "git rebase" did not exit with failure when format-patch it invoked
 failed for whatever reason.


* cb/subtree-tests-update (2015-06-22) 3 commits
  (merged to 'next' on 2015-06-24 at 31a2938)
 + contrib/subtree: small tidy-up to test
 + contrib/subtree: fix broken &&-chains and revealed test error
 + contrib/subtree: use tabs consitently for indentation in tests

 Tests update in contrib/subtree.


* jc/fix-alloc-sortbuf-in-index-pack (2015-07-04) 1 commit
  (merged to 'next' on 2015-07-06 at c05da06)
 + index-pack: fix allocation of sorted_by_pos array

 A hotfix for what is in 2.5-rc but not in 2.4.


* jk/fix-refresh-utime (2015-07-08) 1 commit
  (merged to 'next' on 2015-07-09 at 323b86d)
 + check_and_freshen_file: fix reversed success-check

 Fix a small bug in our use of umask() return value.


* jk/maint-for-each-packed-object (2015-06-22) 1 commit
  (merged to 'next' on 2015-06-24 at 162e134)
 + for_each_packed_object: automatically open pack index
 (this branch is used by jk/cat-file-batch-all.)

 The for_each_packed_object() API function did not iterate over
 objects in a packfile that hasn't been used yet.


* jk/pretty-encoding-doc (2015-06-17) 1 commit
  (merged to 'next' on 2015-07-09 at f61edd3)
 + docs: clarify that --encoding can produce invalid sequences

 Doc update.


* jk/rev-list-no-bitmap-while-pruning (2015-07-01) 1 commit
  (merged to 'next' on 2015-07-09 at 81d6d1b)
 + rev-list: disable --use-bitmap-index when pruning commits

 A minor bugfix when pack bitmap is used with "rev-list --count".


* ls/hint-rev-list-count (2015-07-01) 1 commit
  (merged to 'next' on 2015-07-09 at 84139dc)
 + rev-list: add --count to usage guide


* mm/branch-doc-updates (2015-07-06) 2 commits
  (merged to 'next' on 2015-07-09 at 4b0fa63)
 + Documentation/branch: document -M and -D in terms of --force
 + Documentation/branch: document -d --force and -m --force


* nd/dwim-wildcards-as-pathspecs (2015-07-01) 1 commit
  (merged to 'next' on 2015-07-09 at a376360)
 + Add tests for wildcard "path vs ref" disambiguation

 Test updates to a topic already in 2.5-rc.


* rh/test-color-avoid-terminfo-in-original-home (2015-06-17) 2 commits
  (merged to 'next' on 2015-06-24 at 6af5fa7)
 + test-lib.sh: fix color support when tput needs ~/.terminfo
 + Revert "test-lib.sh: do tests for color support after changing HOME"

 An ancient test framework enhancement to allow color was not
 entirely correct; this makes it work even when tput needs to read
 from the ~/.terminfo under the user's real HOME directory.


* sb/p5310-and-chain (2015-06-26) 1 commit
  (merged to 'next' on 2015-07-09 at c54ee67)
 + p5310: Fix broken && chain in performance test

 Code clean-up.


* tb/checkout-doc (2015-06-17) 1 commit
  (merged to 'next' on 2015-07-09 at 74226c9)
 + git-checkout.txt: document "git checkout <pathspec>" better

 Doc update.

--------------------------------------------------
[New Topics]

* dt/log-follow-config (2015-07-09) 1 commit
  (merged to 'next' on 2015-07-10 at b8fbb43)
 + log: add "log.follow" configuration variable

 Add a new configuration variable to enable "--follow" automatically
 when "git log" is run with one pathspec argument.

 Will merge to 'master'.


* ss/clone-guess-dir-name-simplify (2015-07-09) 1 commit
  (merged to 'next' on 2015-07-10 at 8a62f4d)
 + clone: simplify string handling in guess_dir_name()

 Will merge to 'master'.


* kn/tag-doc-fix (2015-07-10) 1 commit
 - Documentation/tag: remove double occurance of "<pattern>"

 Will merge to 'next'.


* se/doc-checkout-ours-theirs (2015-07-10) 1 commit
 - checkout: document subtlety around --ours/--theirs

 A "rebase" replays changes of the local branch on top of something
 else, as such they are placed in stage #3 and referred to as
 "theirs", while the changes in the new base, typically a foreign
 work, are placed in stage #2 and referred to as "ours".  Clarify
 the "checkout --ours/--theirs".

--------------------------------------------------
[Stalled]

* sg/config-name-only (2015-05-28) 3 commits
 - completion: use new 'git config' options to reliably list variable names
 - SQUASH
 - config: add options to list only variable names

 "git config --list" output was hard to parse when values consist of
 multiple lines.  Introduce a way to show only the keys.

 Adding a single --name-only option may be a better way to go than
 adding two new options.

 Expecting a reroll.


* kk/log-merges-config (2015-04-21) 5 commits
 - bash-completion: add support for git-log --merges= and log.merges
 - t4202-log: add tests for --merges=
 - Documentation: add git-log --merges= option and log.merges config. var
 - log: honor log.merges= option
 - revision: add --merges={show|only|hide} option

 "git log" (but not other commands in the "log" family) learned to
 pay attention to the log.merges configuration variable that can be
 set to "show" (the normal behaviour), "only" (hide non-merge
 commits), or "hide" (hide merge commits).  --merges=(show|only|hide)
 can be used to override the setting from the command line.

 The documentation may need to be updated once more ($gmane/267250).
 Waiting for a reroll.


* mg/httpd-tests-update-for-apache-2.4 (2015-04-08) 2 commits
 - t/lib-git-svn: check same httpd module dirs as lib-httpd
 - t/lib-httpd: load mod_unixd

 This is the first two commits in a three-patch series $gmane/266962
 Will be rerolled.
 with updated log message ($gmane/268061).


* mh/numparse (2015-03-19) 14 commits
 - diff_opt_parse(): use convert_i() when handling --abbrev=<num>
 - diff_opt_parse(): use convert_i() when handling "-l<num>"
 - opt_arg(): simplify pointer handling
 - opt_arg(): report errors parsing option values
 - opt_arg(): use convert_i() in implementation
 - opt_arg(): val is always non-NULL
 - builtin_diff(): detect errors when parsing --unified argument
 - handle_revision_opt(): use convert_ui() when handling "--abbrev="
 - strtoul_ui(), strtol_i(): remove functions
 - handle_revision_opt(): use convert_i() when handling "-<digit>"
 - handle_revision_opt(): use skip_prefix() in many places
 - write_subdirectory(): use convert_ui() for parsing mode
 - cacheinfo_callback(): use convert_ui() when handling "--cacheinfo"
 - numparse: new module for parsing integral numbers

 Many codepaths use unchecked use of strtol() and friends (or even
 worse, atoi()).  Introduce a set of wrappers that try to be more
 careful.

 Expecting a reroll.
 ($gmane/268058).


* tf/gitweb-project-listing (2015-03-19) 5 commits
 - gitweb: make category headings into links when they are directories
 - gitweb: optionally set project category from its pathname
 - gitweb: add a link under the search box to clear a project filter
 - gitweb: if the PATH_INFO is incomplete, use it as a project_filter
 - gitweb: fix typo in man page

 Update gitweb to make it more pleasant to deal with a hierarchical
 forest of repositories.

 Any comments from those who use or have their own code in Gitweb?


* jc/a-lone-dash-stands-for-previous-branch (2015-03-16) 1 commit
 - "-" and "@{-1}" on various programs

 Lose special case code to make a lone dash "-" mean the previous
 branch aka "@{-1}" from a handful subcommands, and instead support
 the notation throughout the system by reimplementing it at the
 revisions layer.

 Needs tests, documentation updates, etc.  Also does only a half-way
 job dealing with range notation, which needs to be fixed before the
 series goes anywhere.


* nd/list-files (2015-02-09) 21 commits
 - t3080: tests for git-list-files
 - list-files: -M aka diff-cached
 - list-files -F: show submodules with the new indicator '&'
 - list-files: add -F/--classify
 - list-files: show directories as well as files
 - list-files: do not show duplicate cached entries
 - list-files: sort output and remove duplicates
 - list-files: add -t back
 - list-files: add -1 short for --no-column
 - list-files: add -R/--recursive short for --max-depth=-1
 - list-files: -u does not imply showing stages
 - list-files: make alias 'ls' default to 'list-files'
 - list-files: a user friendly version of ls-files and more
 - ls-files: support --max-depth
 - ls-files: add --column
 - ls-files: add --color to highlight file names
 - ls-files: buffer full item in strbuf before printing
 - ls_colors.c: highlight submodules like directories
 - ls_colors.c: add a function to color a file name
 - ls_colors.c: parse color.ls.* from config file
 - ls_colors.c: add $LS_COLORS parsing code

 A new "git list-files" Porcelain command, "ls-files" with bells and
 whistles.

 Reroll to base on wt-status work ($gmane/265142) has seen some
 positive discussions.

 Waiting for a further polished reroll ($gmane/265534).


* nd/pathspec-strip-fix (2015-04-18) 1 commit
 - pathspec: adjust prefixlen after striping trailing slash

 Does not quite fix ($gmane/267614).
 Will discard.


* jc/diff-b-m (2015-02-23) 5 commits
 . WIPWIP
 . WIP: diff-b-m
 - diffcore-rename: allow easier debugging
 - diffcore-rename.c: add locate_rename_src()
 - diffcore-break: allow debugging

 "git diff -B -M" produced incorrect patch when the postimage of a
 completely rewritten file is similar to the preimage of a removed
 file; such a resulting file must not be expressed as a rename from
 other place.

 The fix in this patch is broken, unfortunately.


* pw/remote-set-url-fetch (2014-11-26) 1 commit
 - remote: add --fetch and --both options to set-url

 Expecting a reroll.


* tr/remerge-diff (2014-11-10) 9 commits
 - t4213: avoid "|" in sed regexp
 - log --remerge-diff: show what the conflict resolution changed
 - name-hash: allow dir hashing even when !ignore_case
 - merge-recursive: allow storing conflict hunks in index
 - merge_diff_mode: fold all merge diff variants into an enum
 - combine-diff: do not pass revs->dense_combined_merges redundantly
 - merge-recursive: -Xindex-only to leave worktree unchanged
 - merge-recursive: internal flag to avoid touching the worktree
 - merge-recursive: remove dead conditional in update_stages()

 "log -p" output learns a new way to let users inspect a merge
 commit by showing the differences between the automerged result
 with conflicts the person who recorded the merge would have seen
 and the final conflict resolution that was recorded in the merge.

 Waiting for a reroll.
 ($gmane/256591).


* tg/perf-lib-test-perf-cleanup (2013-09-19) 2 commits
 - perf-lib: add test_perf_cleanup target
 - perf-lib: split starting the test from the execution

 Add test_perf_cleanup shell function to the perf suite, that allows
 the script writers to define a test with a clean-up action.

 Will hold.


* jc/show-branch (2014-03-24) 5 commits
 - show-branch: use commit slab to represent bitflags of arbitrary width
 - show-branch.c: remove "all_mask"
 - show-branch.c: abstract out "flags" operation
 - show-branch.c: lift all_mask/all_revs to a global static
 - show-branch.c: update comment style

 Waiting for the final step to lift the hard-limit.

--------------------------------------------------
[Cooking]

* es/worktree-add (2015-07-07) 23 commits
  (merged to 'next' on 2015-07-10 at 304e329)
 + checkout: retire --ignore-other-worktrees in favor of --force
 + worktree: add: auto-vivify new branch when <branch> is omitted
 + worktree: add: make -b/-B default to HEAD when <branch> is omitted
 + worktree: extract basename computation to new function
 + checkout: require worktree unconditionally
 + checkout: retire --to option
 + tests: worktree: retrofit "checkout --to" tests for "worktree add"
 + worktree: add -b/-B options
 + worktree: add --detach option
 + worktree: add --force option
 + worktree: introduce "add" command
 + checkout: drop 'checkout_opts' dependency from prepare_linked_checkout
 + checkout: make --to unconditionally verbose
 + checkout: prepare_linked_checkout: drop now-unused 'new' argument
 + checkout: relocate --to's "no branch specified" check
 + checkout: fix bug with --to and relative HEAD
 + Documentation/git-worktree: add EXAMPLES section
 + Documentation/git-worktree: add high-level 'lock' overview
 + Documentation/git-worktree: split technical info from general description
 + Documentation/git-worktree: add BUGS section
 + Documentation: move linked worktree description from checkout to worktree
 + Documentation/git-worktree: associate options with commands
 + Documentation/git-checkout: fix incorrect worktree prune command
 (this branch uses nd/multiple-work-trees.)

 Update to the "linked checkout" in 2.5.0-rc1.

 Instead of "checkout --to" that does not do what "checkout"
 normally does, move the functionality to "git worktree add".

 Will merge to 'master'.


* jc/unexport-git-pager-in-use-in-pager (2015-07-03) 1 commit
  (merged to 'next' on 2015-07-09 at bff19cd)
 + pager: do not leak "GIT_PAGER_IN_USE" to the pager

 When you say "!<ENTER>" while running say "git log", you'd confuse
 yourself in the resulting shell, that may look as if you took
 control back to the original shell you spawned "git log" from but
 that isn't what is happening.  To that new shell, we leaked
 GIT_PAGER_IN_USE environment variable that was meant as a local
 communication between the original "Git" and subprocesses that was
 spawned by it after we launched the pager, which caused many
 "interesting" things to happen, e.g. "git diff | cat" still paints
 its output in color by default.

 Stop leaking that environment variable to the pager's half of the
 fork; we only need it on "Git" side when we spawn the pager.

 Will merge to 'master'.


* mh/strbuf-read-file-returns-ssize-t (2015-07-03) 1 commit
  (merged to 'next' on 2015-07-09 at 0d8544e)
 + strbuf: strbuf_read_file() should return ssize_t

 Avoid possible ssize_t to int truncation.

 Will merge to 'master'.


* pt/am-tests (2015-07-07) 12 commits
 - t3901: test git-am encoding conversion
 - t3418: non-interactive rebase --continue with rerere enabled
 - t4150: tests for am --[no-]scissors
 - t4150: am with post-applypatch hook
 - t4150: am with pre-applypatch hook
 - t4150: am with applypatch-msg hook
 - t4150: am --resolved fails if index has unmerged entries
 - t4150: am --resolved fails if index has no changes
 - t4150: am refuses patches when paused
 - t4151: am --abort will keep dirty index intact
 - t4150: am fails if index is dirty
 - t4150: am.messageid really adds the message id

 Sprinkle a few test prereqs ($gmane/273709)?

 Needs a reroll.


* kn/for-each-tag-branch (2015-07-07) 11 commits
 - for-each-ref: add '--contains' option
 - ref-filter: implement '--contains' option
 - parse-options.h: add macros for '--contains' option
 - parse-option: rename parse_opt_with_commit()
 - for-each-ref: add '--merged' and '--no-merged' options
 - ref-filter: implement '--merged' and '--no-merged' options
 - ref-filter: add parse_opt_merge_filter()
 - for-each-ref: add '--points-at' option
 - ref-filter: implement '--points-at' option
 - tag: libify parse_opt_points_at()
 - t6302: for-each-ref tests for ref-filter APIs
 (this branch uses kn/for-each-ref.)

 Sprinkle a few test prereqs ($gmane/273652)?

 Needs a reroll.


* pt/am-builtin (2015-07-08) 47 commits
 - builtin-am: remove redirection to git-am.sh
 - builtin-am: check for valid committer ident
 - builtin-am: implement legacy -b/--binary option
 - builtin-am: implement -i/--interactive
 - builtin-am: support and auto-detect mercurial patches
 - builtin-am: support and auto-detect StGit series files
 - builtin-am: support and auto-detect StGit patches
 - builtin-am: rerere support
 - builtin-am: invoke post-applypatch hook
 - builtin-am: invoke pre-applypatch hook
 - builtin-am: invoke applypatch-msg hook
 - builtin-am: support automatic notes copying
 - builtin-am: invoke post-rewrite hook
 - builtin-am: implement -S/--gpg-sign, commit.gpgsign
 - builtin-am: implement --committer-date-is-author-date
 - builtin-am: implement --ignore-date
 - builtin-am: pass git-apply's options to git-apply
 - builtin-am: implement --[no-]scissors
 - builtin-am: support --keep-cr, am.keepcr
 - builtin-am: implement --[no-]message-id, am.messageid
 - builtin-am: implement -k/--keep, --keep-non-patch
 - builtin-am: implement -u/--utf8
 - builtin-am: handle stray state directory
 - fixup! builtin-am: bypass git-mailinfo when --rebasing
 - builtin-am: bypass git-mailinfo when --rebasing
 - builtin-am: implement --rebasing mode
 - builtin-am: implement --3way, am.threeWay
 - cache-tree: introduce write_index_as_tree()
 - builtin-am: implement -s/--signoff
 - builtin-am: exit with user friendly message on failure
 - builtin-am: implement -q/--quiet
 - builtin-am: reject patches when there's a session in progress
 - builtin-am: implement --abort
 - builtin-am: implement --skip
 - builtin-am: implement --resolved/--continue
 - builtin-am: refuse to apply patches if index is dirty
 - builtin-am: implement committing applied patch
 - builtin-am: apply patch with git-apply
 - fixup! builtin-am: extract patch and commit info with git-mailinfo
 - builtin-am: extract patch and commit info with git-mailinfo
 - builtin-am: auto-detect mbox patches
 - builtin-am: split out mbox/maildir patches with git-mailsplit
 - builtin-am: implement patch queue mechanism
 - builtin-am: implement skeletal builtin am
 - wrapper: implement xfopen()
 - wrapper: implement xopen()
 - Merge branch 'pt/pull-builtin' into pt/am-builtin
 (this branch uses pt/pull-builtin.)

 Rewrite "am" in "C".

 Looks more-or-less ready.  Any reroll needed other than squashing
 these fixup! in?


* ad/bisect-cleanup (2015-06-29) 6 commits
  (merged to 'next' on 2015-07-09 at 75e2a06)
 + bisect: don't mix option parsing and non-trivial code
 + bisect: simplify the addition of new bisect terms
 + bisect: replace hardcoded "bad|good" by variables
 + Documentation/bisect: revise overall content
 + Documentation/bisect: move getting help section to the end
 + bisect: correction of typo
 (this branch is used by ad/bisect-terms.)

 Code and documentation clean-up to "git bisect".

 Will merge to 'master'.


* kb/config-unmap-before-renaming (2015-06-30) 1 commit
  (merged to 'next' on 2015-07-10 at 6b89478)
 + config.c: fix writing config files on Windows network shares

 Will merge to 'master'.


* mh/fast-import-get-mark (2015-07-01) 1 commit
 - fast-import: add a get-mark command

 Will merge to 'next'.


* kb/i18n-doc (2015-07-01) 1 commit
  (merged to 'next' on 2015-07-09 at a12c7b3)
 + Documentation/i18n.txt: clarify character encoding support

 Will merge to 'master'.


* kb/use-nsec-doc (2015-07-01) 1 commit
  (merged to 'next' on 2015-07-09 at e7e5a05)
 + Makefile / racy-git.txt: clarify USE_NSEC prerequisites

 Will merge to 'master'.


* dt/refs-backend-preamble (2015-07-08) 8 commits
 - git-stash: use update-ref --create-reflog instead of creating files
 - update-ref and tag: add --create-reflog arg
 - git-reflog: add exists command
 - refs: new public ref function: safe_create_reflog
 - refs: Break out check for reflog autocreation
 - bisect: treat BISECT_HEAD as a ref
 - cherry-pick: treat CHERRY_PICK_HEAD and REVERT_HEAD as refs
 - refs.c: add err arguments to reflog functions

 In preparation for allowing different "backends" to store the refs
 in a way different from the traditional "one ref per file in $GIT_DIR
 or in a $GIT_DIR/packed-refs file" filesystem storage, reduce
 direct filesystem access to ref-like things like CHERRY_PICK_HEAD
 from scripts and programs.

 Still under discussion.

 Will hold.


* et/http-proxyauth (2015-06-29) 1 commit
  (merged to 'next' on 2015-07-09 at cf80874)
 + http: always use any proxy auth method available

 We used to ask libCURL to use the most secure authentication method
 available when talking to an HTTP proxy only when we were told to
 talk to one via configuration variables.  We now ask libCURL to
 always use the most secure authentication method, because the user
 can tell libCURL to use an HTTP proxy via an environment variable
 without using configuration variables.

 An extra set of eyes appreciated, but I think this is ready.

 Will merge to 'master'.


* jc/fsck-retire-require-eoh (2015-06-28) 1 commit
  (merged to 'next' on 2015-07-09 at dbc292b)
 + fsck: it is OK for a tag and a commit to lack the body

 A fix to a minor regression to "git fsck" in v2.2 era that started
 complaining about a body-less tag object when it lacks a separator
 empty line after its header to separate it with a non-existent body.

 Will merge to 'master'.


* jk/date-mode-format (2015-06-29) 3 commits
  (merged to 'next' on 2015-07-09 at a01bfc3)
 + introduce "format" date-mode
 + convert "enum date_mode" into a struct
 + show-branch: use DATE_RELATIVE instead of magic number

 Teach "git log" and friends a new "--date=format:..." option to
 format timestamps using system's strftime(3).

 Will merge to 'master'.


* jk/still-interesting (2015-06-29) 1 commit
  (merged to 'next' on 2015-07-09 at e19fc0e)
 + revision.c: remove unneeded check for NULL

 Code clean-up.

 Will merge to 'master'.


* nd/export-worktree (2015-06-26) 1 commit
  (merged to 'next' on 2015-07-09 at 1581a9b)
 + setup: set env $GIT_WORK_TREE when work tree is set, like $GIT_DIR

 Running an aliased command from a subdirectory when the .git thing
 in the working tree is a gitfile pointing elsewhere did not work.

 Will merge to 'master'.


* jc/rerere (2015-07-06) 19 commits
 . t4200: rerere a merge with two identical conflicts
 . rerere: un-nest merge() further
 . rerere: use "struct rerere_id" instead of "char *" for conflict ID
 - rerere: call conflict-ids IDs
 - rerere: further clarify do_rerere_one_path()
 - rerere: further de-dent do_plain_rerere()
 - rerere: refactor "replay" part of do_plain_rerere()
 - rerere: explain the remainder
 - rerere: explain "rerere forget" codepath
 - rerere: explain the primary codepath
 - rerere: explain MERGE_RR management helpers
 - rerere: explain the rerere I/O abstraction
 - rerere: stop looping unnecessarily
 - rerere: drop want_sp parameter from is_cmarker()
 - rerere: report autoupdated paths only after actually updating them
 - rerere: write out each record of MERGE_RR in one go
 - rerere: lift PATH_MAX limitation
 - rerere: plug conflict ID leaks
 - rerere: fix an off-by-one non-bug

 Code clean-up and minor fixes (so far).


* ad/bisect-terms (2015-06-29) 4 commits
 - bisect: allow setting any user-specified in 'git bisect start'
 - bisect: add 'git bisect terms' to view the current terms
 - bisect: add the terms old/new
 - bisect: sanity check on terms
 (this branch uses ad/bisect-cleanup.)

 The use of 'good/bad' in "git bisect" made it confusing to use when
 hunting for a state change that is not a regression (e.g. bugfix).
 The command learned 'old/new' and then allows the end user to
 say e.g. "bisect start --term-old=fast --term=new=slow" to find a
 performance regression.

 Michael's idea to make 'good/bad' more intelligent does have
 certain attractiveness ($gname/272867), and makes some of the work
 on this topic a moot point.

 Will hold.


* mh/tempfile (2015-06-10) 14 commits
 - credential-cache--daemon: use tempfile module
 - credential-cache--daemon: delete socket from main()
 - gc: use tempfile module to handle gc.pid file
 - lock_repo_for_gc(): compute the path to "gc.pid" only once
 - diff: use tempfile module
 - setup_temporary_shallow(): use tempfile module
 - write_shared_index(): use tempfile module
 - register_tempfile(): new function to handle an existing temporary file
 - tempfile: add several functions for creating temporary files
 - register_tempfile_object(): new function, extracted from create_tempfile()
 - commit_lock_file(): use get_locked_file_path()
 - lockfile: remove some redundant functions
 - tempfile: a new module for handling temporary files
 - Move lockfile API documentation to lockfile.h

 Rebuild "lockfile" API on top of a new "tempfile" API.
 This needs rerolling, to include "tempfile.h" in "lockfile.h", at
 least.

 Expecting a reroll.
 ($gmane/271353)


* js/fsck-opt (2015-06-23) 19 commits
  (merged to 'next' on 2015-07-10 at eb4da0a)
 + fsck: support ignoring objects in `git fsck` via fsck.skiplist
 + fsck: git receive-pack: support excluding objects from fsck'ing
 + fsck: introduce `git fsck --connectivity-only`
 + fsck: support demoting errors to warnings
 + fsck: document the new receive.fsck.<msg-id> options
 + fsck: allow upgrading fsck warnings to errors
 + fsck: optionally ignore specific fsck issues completely
 + fsck: disallow demoting grave fsck errors to warnings
 + fsck: add a simple test for receive.fsck.<msg-id>
 + fsck: make fsck_tag() warn-friendly
 + fsck: handle multiple authors in commits specially
 + fsck: make fsck_commit() warn-friendly
 + fsck: make fsck_ident() warn-friendly
 + fsck: report the ID of the error/warning
 + fsck (receive-pack): allow demoting errors to warnings
 + fsck: offer a function to demote fsck errors to warnings
 + fsck: provide a function to parse fsck message IDs
 + fsck: introduce identifiers for fsck messages
 + fsck: introduce fsck options

 Allow ignoring fsck errors on specific set of known-to-be-bad
 objects, and also tweaking warning level of various kinds of non
 critical breakages reported.

 Will merge to 'master'.


* js/rebase-i-clean-up-upon-continue-to-skip (2015-06-29) 2 commits
  (merged to 'next' on 2015-07-09 at b844d9a)
 + rebase -i: do not leave a CHERRY_PICK_HEAD file behind
 + t3404: demonstrate CHERRY_PICK_HEAD bug

 Abandoning an already applied change in "git rebase -i" with
 "--continue" left CHERRY_PICK_HEAD and confused later steps.

 Will merge to 'master'.


* ak/format-patch-odir-config (2015-06-19) 1 commit
 - format-patch: introduce format.outputDirectory configuration

 Reroll exists but didn't pick it up as it seems to be still
 collecting review comments.

 Expecting a reroll.
 ($gmane/272180).


* bc/gpg-verify-raw (2015-06-22) 7 commits
  (merged to 'next' on 2015-06-24 at 08a1164)
 + verify-tag: add option to print raw gpg status information
 + verify-commit: add option to print raw gpg status information
 + gpg: centralize printing signature buffers
 + gpg: centralize signature check
 + verify-commit: add test for exit status on untrusted signature
 + verify-tag: share code with verify-commit
 + verify-tag: add tests

 "git verify-tag" and "git verify-commit" have been taught to share
 more code, and then learned to optionally show the verification
 message from the underlying GPG implementation.

 Will merge to 'master'.


* cb/parse-magnitude (2015-06-22) 2 commits
  (merged to 'next' on 2015-06-24 at 2fd7205)
 + parse-options: move unsigned long option parsing out of pack-objects.c
 + test-parse-options: update to handle negative ints

 Move machinery to parse human-readable scaled numbers like 1k, 4M,
 and 2G as an option parameter's value from pack-objects to
 parse-options API, to make it available to other codepaths.

 Will merge to 'master'.


* jk/cat-file-batch-all (2015-06-26) 8 commits
  (merged to 'next' on 2015-07-10 at 80200cc)
 + cat-file: sort and de-dup output of --batch-all-objects
 + cat-file: add --batch-all-objects option
 + cat-file: split batch_one_object into two stages
 + cat-file: stop returning value from batch_one_object
 + cat-file: add --buffer option
 + cat-file: move batch_options definition to top of file
 + cat-file: minor style fix in options list
 + Merge branch 'jk/maint-for-each-packed-object' into jk/cat-file-batch-all

 "cat-file" learned "--batch-all-objects" option to enumerate all
 available objects in the repository more quickly than "rev-list
 --all --objects" (the output includes unreachable objects, though).

 Will merge to 'master'.


* jk/pkt-log-pack (2015-06-16) 3 commits
  (merged to 'next' on 2015-07-10 at ba33212)
 + pkt-line: support tracing verbatim pack contents
 + pkt-line: tighten sideband PACK check when tracing
 + pkt-line: simplify starts_with checks in packet tracing

 Enhance packet tracing machinery to allow capturing an incoming
 pack data to a file for debugging.

 Will merge to 'master'.


* kn/for-each-ref (2015-06-15) 11 commits
  (merged to 'next' on 2015-06-24 at 1a3a734)
 + ref-filter: make 'ref_array_item' use a FLEX_ARRAY for refname
 + for-each-ref: introduce filter_refs()
 + ref-filter: move code from 'for-each-ref'
 + ref-filter: add 'ref-filter.h'
 + for-each-ref: rename variables called sort to sorting
 + for-each-ref: rename some functions and make them public
 + for-each-ref: introduce 'ref_array_clear()'
 + for-each-ref: introduce new structures for better organisation
 + for-each-ref: rename 'refinfo' to 'ref_array_item'
 + for-each-ref: clean up code
 + for-each-ref: extract helper functions out of grab_single_ref()
 (this branch is used by kn/for-each-tag-branch.)

 GSoC project to rebuild ref listing by branch and tag based on the
 for-each-ref machinery.  This is its first part.

 Will merge to 'master'.


* mh/init-delete-refs-api (2015-06-22) 19 commits
  (merged to 'next' on 2015-07-10 at 121b26e)
 + delete_ref(): use the usual convention for old_sha1
 + cmd_update_ref(): make logic more straightforward
 + update_ref(): don't read old reference value before delete
 + check_branch_commit(): make first parameter const
 + refs.h: add some parameter names to function declarations
 + refs: move the remaining ref module declarations to refs.h
 + initial_ref_transaction_commit(): check for ref D/F conflicts
 + initial_ref_transaction_commit(): check for duplicate refs
 + refs: remove some functions from the module's public interface
 + initial_ref_transaction_commit(): function for initial ref creation
 + repack_without_refs(): make function private
 + prune_refs(): use delete_refs()
 + prune_remote(): use delete_refs()
 + delete_refs(): bail early if the packed-refs file cannot be rewritten
 + delete_refs(): make error message more generic
 + delete_refs(): new function for the refs API
 + delete_ref(): handle special case more explicitly
 + remove_branches(): remove temporary
 + delete_ref(): move declaration to refs.h

 Clean up refs API and make "git clone" less intimate with the
 implementation detail.

 Will merge to 'master'.


* mh/replace-refs (2015-06-12) 1 commit
  (merged to 'next' on 2015-06-24 at cb13adf)
 + Allow to control where the replace refs are looked for

 Add an environment variable to tell Git to look into refs hierarchy
 other than refs/replace/ for the object replacement data.


* nd/multiple-work-trees (2015-06-29) 2 commits
  (merged to 'next' on 2015-06-29 at fd4eb60)
 + worktree: new place for "git prune --worktrees"
  (merged to 'next' on 2015-06-24 at 7c3f918)
 + checkout: don't check worktrees when not necessary
 (this branch is used by es/worktree-add.)

 "git checkout [<tree-ish>] <paths>" spent unnecessary cycles
 checking if the current branch was checked out elsewhere, when we
 know we are not switching the branches ourselves.


* gp/status-rebase-i-info (2015-07-06) 4 commits
  (merged to 'next' on 2015-07-10 at b121298)
 + status: add new tests for status during rebase -i
 + status: give more information during rebase -i
 + status: differentiate interactive from non-interactive rebases
 + status: factor two rebase-related messages together

 Teach "git status" to show a more detailed information regarding
 the "rebase -i" session in progress.

 Will merge to 'master'.


* mk/utf8-no-iconv-warn (2015-06-08) 1 commit
 - utf8.c: print warning about disabled iconv

 Warn when a reencoding is requested in a build without iconv
 support, as the end user is likely to get an unexpected result.  I
 think the same level of safety should be added to a build with
 iconv support when the specified encoding is not available, but the
 patch does not go there.

 Expecting a reroll.


* mr/rebase-i-customize-insn-sheet (2015-06-15) 1 commit
  (merged to 'next' on 2015-07-10 at ec383cd)
 + git-rebase--interactive.sh: add config option for custom instruction format

 "git rebase -i"'s list of todo is made configurable.

 Will merge to 'master'.


* pt/am-foreign (2015-06-15) 5 commits
  (merged to 'next' on 2015-06-24 at 838c702)
 + am: teach mercurial patch parser how to read from stdin
 + am: use gmtime() to parse mercurial patch date
 + t4150: test applying StGit series
 + am: teach StGit patch parser how to read from stdin
 + t4150: test applying StGit patch

 Various enhancements around "git am" reading patches generated by
 foreign SCM.


* pt/pull-builtin (2015-06-18) 19 commits
  (merged to 'next' on 2015-07-10 at 07b1794)
 + pull: remove redirection to git-pull.sh
 + pull --rebase: error on no merge candidate cases
 + pull --rebase: exit early when the working directory is dirty
 + pull: configure --rebase via branch.<name>.rebase or pull.rebase
 + pull: teach git pull about --rebase
 + pull: set reflog message
 + pull: implement pulling into an unborn branch
 + pull: fast-forward working tree if head is updated
 + pull: check if in unresolved merge state
 + pull: support pull.ff config
 + pull: error on no merge candidates
 + pull: pass git-fetch's options to git-fetch
 + pull: pass git-merge's options to git-merge
 + pull: pass verbosity, --progress flags to fetch and merge
 + pull: implement fetch + merge
 + pull: implement skeletal builtin pull
 + argv-array: implement argv_array_pushv()
 + parse-options-cb: implement parse_opt_passthru_argv()
 + parse-options-cb: implement parse_opt_passthru()
 (this branch is used by pt/am-builtin.)

 Reimplement 'git pull' in C.

 Will merge to 'master'.


* rl/send-email-aliases (2015-07-07) 10 commits
  (merged to 'next' on 2015-07-09 at c60553d)
 + send-email: suppress meaningless whitespaces in from field
 + send-email: allow multiple emails using --cc, --to and --bcc
 + send-email: consider quote as delimiter instead of character
 + send-email: reduce dependencies impact on parse_address_line
 + send-email: minor code refactoring
 + send-email: allow use of aliases in the From field of --compose mode
 + send-email: refactor address list process
 + t9001-send-email: refactor header variable fields replacement
 + send-email: allow aliases in patch header and command script outputs
 + t9001-send-email: move script creation in a setup test

 "git send-email" now performs alias-expansion on names that are
 given via --cccmd, etc.

 This round comes with a lot more enhanced e-mail address parser,
 which makes it a bit scary, but as long as it works as designed, it
 makes it wonderful ;-).

 Will merge to 'master'.


* wp/sha1-name-negative-match (2015-06-08) 2 commits
 - sha1_name.c: introduce '^{/!-<negative pattern>}' notation
 - test for '!' handling in rev-parse's named commits

 Introduce "branch^{/!-<pattern>}" notation to name a commit
 reachable from branch that does not match the given pattern.

 Expecting a reroll.


* bc/object-id (2015-06-17) 10 commits
 . remote.c: use struct object_id in many functions
 . object-id: use struct object_id in struct object
 . remote.c: use struct object_id in ref_newer()
 . transport-helper.c: use struct object_id in push_refs_with_export()
 . connect.c: use struct object_id in get_remote_heads()
 . remote-curl: use struct object_id in parse_fetch()
 . fetch-pack: use struct object_id in add_sought_entry_mem()
 . object_id: convert struct ref to use object_id.
 . sha1_file: introduce has_object_file() helper
 . refs: convert some internal functions to use object_id

 More transition from "unsigned char[40]" to "struct object_id".

 While GSoC and other topics are actively moving existing code
 around, this cannot go in; ejected from 'pu'.


* jk/log-missing-default-HEAD (2015-06-03) 1 commit
 - log: diagnose empty HEAD more clearly

 "git init empty && git -C empty log" said "bad default revision 'HEAD'",
 which was found to be a bit confusing to new users.

 What's the status of this one?


* gr/rebase-i-drop-warn (2015-06-30) 3 commits
 - git rebase -i: add static check for commands and SHA-1
 - git rebase -i: warn about removed commits
 - git-rebase -i: add command "drop" to remove a commit

 Add "drop commit-object-name subject" command as another way to
 skip replaying of a commit in "rebase -i", and then punish those
 who do not use it (and instead just remove the lines) by throwing
 a warning.

 Will merge to 'next'.


* jh/strbuf-read-use-read-in-full (2015-06-01) 1 commit
 - strbuf_read(): skip unnecessary strbuf_grow() at eof

 Avoid one extra iteration and strbuf_grow() of 8kB in
 strbuf_read().

 Looked reasonable; perhaps a log message clarification is needed.

 Expecting a reroll.


* mg/index-read-error-messages (2015-06-01) 2 commits
 - messages: uniform error messages for index write
 - show-index: uniform error messages for index read

 The tip was RFC.
 Expecting a reroll.


* hv/submodule-config (2015-06-15) 4 commits
 - do not die on error of parsing fetchrecursesubmodules option
 - use new config API for worktree configurations of submodules
 - extract functions for submodule config set and lookup
 - implement submodule config API for lookup of .gitmodules values

 The gitmodules API accessed from the C code learned to cache stuff
 lazily.

 Needs another reroll? ($gmane/273743).


* jc/push-tags-also (2015-05-29) 1 commit
 - push --tags: push tags *in addition to* other stuff

 "git fetch --tags" learned to fetch tags in addition to other stuff
 a few years ago, but "git push --tags" didn't.  Now it does.

 A change to push out more than before always invites "what if the
 user makes a mistake" worries.

 Will discard.


* jc/commit-slab (2015-05-22) 1 commit
 - commit-slab: introduce slabname##_peek() function

 Memory use reduction when commit-slab facility is used to annotate
 sparsely (which is not recommended in the first place).

 Will merge to 'next'.


* jc/clone-bundle (2015-04-30) 1 commit
 - repack: optionally create a clone.bundle

 Waiting for further work.
 Still an early WIP.


* ee/clean-remove-dirs (2015-06-26) 6 commits
  (merged to 'next' on 2015-06-29 at d595659)
 + read_gitfile_gently: fix use-after-free
  (merged to 'next' on 2015-06-24 at 7c27821)
 + clean: improve performance when removing lots of directories
 + p7300: add performance tests for clean
 + t7300: add tests to document behavior of clean and nested git
 + setup: sanity check file size in read_gitfile_gently
 + setup: add gentle version of read_gitfile

 Replace "is this subdirectory a separate repository that should not
 be touched?" check "git clean" does by checking if it has .git/HEAD
 using the submodule-related code with a more optimized check.

 Will merge to 'master'.


* jc/merge-drop-old-syntax (2015-04-29) 1 commit
  (merged to 'next' on 2015-05-28 at 6bfd8b9)
 + merge: drop 'git merge <message> HEAD <commit>' syntax

 Stop supporting "git merge <message> HEAD <commit>" syntax that
 has been deprecated since October 2007.

 Will keep in 'next' during the 2.5 cycle.