bin/create-initial-empty-commit

   1 #!/bin/sh
   2
   3 set -e
   4
   5 . @basedir@/shlib.sh
   6
   7 [ -n "$defined_cfg_empty_commit_message" ] || exit 0 # nothing to do, not enabled
   8
   9 proj="$1"
  10 [ -d "$cfg_reporoot/$proj.git" ] || { echo "Invalid project name: $1" >&2; exit 1; }
  11
  12 [ -f "$cfg_reporoot/$proj.git/.nofetch" ] || { echo "Mirrors do not create an initial empty commit: $1" >&2; exit 1; }
  13
  14 projdir="$cfg_reporoot/$proj.git"
  15 if
  16         [ -L "$projdir/HEAD" ] ||
  17         ! [ -f "$projdir/HEAD" ] ||
  18         ! [ -f "$projdir/config" ] ||
  19         ! [ -f "$projdir/description" ] ||
  20         ! [ -f "$projdir/hooks/pre-receive" ] ||
  21         ! [ -x "$projdir/hooks/pre-receive" ] ||
  22         ! [ -f "$projdir/hooks/post-receive" ] ||
  23         ! [ -x "$projdir/hooks/post-receive" ] ||
  24         ! [ -f "$projdir/hooks/update" ] ||
  25         ! [ -x "$projdir/hooks/update" ] ||
  26         ! [ -d "$projdir/objects" ] ||
  27         ! [ -d "$projdir/info" ]
  28 then
  29         echo "Incorrectly set up project: $1" >&2
  30         exit 1
  31 fi
  32
  33 umask $var_umask_perm
  34
  35 cd "$projdir" || { echo "Could not cd to project: $proj" >&2; exit 1; }
  36 if symref="$(git symbolic-ref -q HEAD)" && ! git show-ref --verify -q "$symref"; then
  37         # only do anything if HEAD is an unborn symbolic ref
  38         mttree="$(git mktree </dev/null)" && [ -n "$mttree" ]
  39         nowsecs="$(date +%s)" && [ -n "$nowsecs" ]
  40         pnl=
  41         [ -z "$cfg_empty_commit_message" ] || pnl='\n'
  42         mtcommit="$(printf 'tree %s\nauthor - <-> %s +0000\ncommitter - <-> %s +0000\n\n%s'"$pnl" \
  43                 "$mttree" "$nowsecs" "$nowsecs" "$cfg_empty_commit_message" |
  44                 git hash-object -t commit -w --stdin)" && [ -n "$mtcommit" ]
  45         git update-ref -m 'initial empty commit' HEAD "$mtcommit"
  46 fi
  47
  48 exit 0