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