jobd/gc.sh

   1 #!/bin/bash
   2
   3 . @basedir@/shlib.sh
   4
   5 set -e
   6 trap 'if [ $? != 0 ]; then echo "gc failed dir: $PWD" >&2; fi; rm -f "$bang_log"' EXIT
   7
   8 umask 002
   9 [ "$cfg_permission_control" != "Hooks" ] || umask 000
  10
  11 proj="$1"
  12 cd "$cfg_reporoot/$proj.git"
  13
  14 # date -R is linux-only, POSIX equivalent is '+%a, %d %b %Y %T %z'
  15 datefmt='+%a, %d %b %Y %T %z'
  16
  17 if check_interval lastgc $cfg_min_gc_interval; then
  18         progress "= [$proj] garbage check skip (last at $(config_get lastgc))"
  19         exit 0
  20 fi
  21 if [ -e .nogc ]; then
  22         progress "x [$proj] garbage check disabled"
  23         exit 0
  24 fi
  25 progress "+ [$proj] garbage check (`date`)"
  26
  27 # safe pruning: we put all our objects in all forks, then we can
  28 # safely get rid of extra ones; repacks in forks will get rid of
  29 # the redundant ones again then
  30 forkdir="$1"
  31 if [ -d "../${forkdir##*/}" ]; then
  32         # It is enough to copy objects just one level down and get_repo_list
  33         # takes a regular expression (which is automatically prefixed with '^')
  34         # so we can easily match forks exactly one level down from this project
  35         get_repo_list "$forkdir/[^/]*:" |
  36                 while read fork; do
  37                         # Ignore forks that do not exist or are symbolic links
  38                         [ ! -L "$cfg_reporoot/$fork.git" -a -d "$cfg_reporoot/$fork.git" ] || \
  39                                 continue
  40                         # Match objects in parent project
  41                         for d in objects/?? objects/pack; do
  42                                 [ "$d" != "objects/??" ] || continue
  43                                 mkdir -p "$cfg_reporoot/$fork.git/$d"
  44                                 [ "$d" != "objects/pack" ] || \
  45                                         [ "$(echo objects/pack/*)" != \
  46                                                         "objects/pack/*" ] || \
  47                                         continue
  48                                 ln -f "$d"/* "$cfg_reporoot/$fork.git/$d" || :
  49                         done
  50                 done
  51 fi
  52
  53 quiet=; [ -n "$show_progress" ] || quiet=-q
  54 git repack -a -d --window=50 --window-memory=1G --depth=50 -l $quiet
  55 git prune
  56 git update-server-info
  57 config_set lastgc "$(date "$datefmt")"
  58
  59 progress "- [$proj] garbage check (`date`)"