purge-packages.sh

   1 #!/bin/sh
   2 # Purges packages/ checkouts
   3 # - if package has clean state, the dir is removed
   4 # - otherwise git gc is called
   5 set -e
   6
   7 CALL_GC=${CALL_GC:-'no'}
   8
   9 topdir="${1:-$(rpm -E %_topdir)}"
  10 topdir=$(readlink -f "$topdir")
  11 purgedir=$topdir/purged
  12 cd "$topdir"
  13
  14 echo "Purging in $topdir, press ENTER to continue"
  15 read a
  16
  17 if [ -d "$purgedir" ]; then
  18         echo >&2 "Previous pruge dir exists: $purgedir, remove it to resume"
  19         exit 1
  20 fi
  21
  22 install -d $purgedir
  23 for pkg in */.git; do
  24         pkg=${pkg%/.git}
  25         cd "$pkg"
  26         purge='yes'
  27
  28         status=$(git status --porcelain)
  29         stash=$(git stash list)
  30
  31         # FIXME: does not currently handle if some pushes are not made!
  32         if [ -n "$status" ] || [ -n "$stash" ]; then
  33                 cat <<-EOF
  34                 * Package $pkg - Untracked files or stash not empty.
  35                 $status
  36                 EOF
  37                 purge='no'
  38                 [ "$CALL_GC" != 'no' ] && git gc
  39         fi
  40         git show-ref --heads |\
  41         { while read sha1 branch; do
  42                 short_branch=${branch#refs/heads/}
  43                 if ! upstream=$(git rev-parse -q --verify $short_branch@{u}) 2>/dev/null; then
  44                         echo "* Package $pkg - Branch $short_branch has not defined upstream"
  45                         purge='no'
  46                         continue
  47                 fi
  48                 if [ -n "$(git rev-list "$upstream..$branch")" ]; then
  49                         echo "* Package $pkg - Branch $short_branch is not fully merged to its upstream"
  50                         purge='no'
  51                         continue
  52                 fi
  53         done
  54         if [ "$purge" = 'yes' ]; then
  55                 cat <<-EOF
  56                 * Package $pkg - State clean. Removing
  57                 EOF
  58                 mv ../$pkg $purgedir
  59         fi }
  60         cd ..
  61 done
  62
  63 rmdir --ignore-fail-on-non-empty $purgedir
  64
  65 # vi:syntax=sh:ts=4:sw=4:noet