git-remote-testgit.sh

   1 #!/bin/sh
   2 # Copyright (c) 2012 Felipe Contreras
   3
   4 # The first argument can be a url when the fetch/push command was a url
   5 # instead of a configured remote. In this case, use a generic alias.
   6 if test "$1" = "testgit::$2"; then
   7         alias=_
   8 else
   9         alias=$1
  10 fi
  11 url=$2
  12
  13 dir="$GIT_DIR/testgit/$alias"
  14 prefix="refs/testgit/$alias"
  15
  16 default_refspec="refs/heads/*:${prefix}/heads/*"
  17
  18 refspec="${GIT_REMOTE_TESTGIT_REFSPEC-$default_refspec}"
  19
  20 test -z "$refspec" && prefix="refs"
  21
  22 GIT_DIR="$url/.git"
  23 export GIT_DIR
  24
  25 force=
  26
  27 mkdir -p "$dir"
  28
  29 if test -z "$GIT_REMOTE_TESTGIT_NO_MARKS"
  30 then
  31         gitmarks="$dir/git.marks"
  32         testgitmarks="$dir/testgit.marks"
  33         test -e "$gitmarks" || >"$gitmarks"
  34         test -e "$testgitmarks" || >"$testgitmarks"
  35 fi
  36
  37 while read line
  38 do
  39         case $line in
  40         capabilities)
  41                 echo 'import'
  42                 echo 'export'
  43                 test -n "$refspec" && echo "refspec $refspec"
  44                 if test -n "$gitmarks"
  45                 then
  46                         echo "*import-marks $gitmarks"
  47                         echo "*export-marks $gitmarks"
  48                 fi
  49                 test -n "$GIT_REMOTE_TESTGIT_SIGNED_TAGS" && echo "signed-tags"
  50                 test -n "$GIT_REMOTE_TESTGIT_NO_PRIVATE_UPDATE" && echo "no-private-update"
  51                 echo 'option'
  52                 echo
  53                 ;;
  54         list)
  55                 git for-each-ref --format='? %(refname)' 'refs/heads/'
  56                 head=$(git symbolic-ref HEAD)
  57                 echo "@$head HEAD"
  58                 echo
  59                 ;;
  60         import*)
  61                 # read all import lines
  62                 while true
  63                 do
  64                         ref="${line#* }"
  65                         refs="$refs $ref"
  66                         read line
  67                         test "${line%% *}" != "import" && break
  68                 done
  69
  70                 if test -n "$gitmarks"
  71                 then
  72                         echo "feature import-marks=$gitmarks"
  73                         echo "feature export-marks=$gitmarks"
  74                 fi
  75
  76                 if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
  77                 then
  78                         echo "feature done"
  79                         exit 1
  80                 fi
  81
  82                 echo "feature done"
  83                 git fast-export \
  84                         ${testgitmarks:+"--import-marks=$testgitmarks"} \
  85                         ${testgitmarks:+"--export-marks=$testgitmarks"} \
  86                         $refs |
  87                 sed -e "s#refs/heads/#${prefix}/heads/#g"
  88                 echo "done"
  89                 ;;
  90         export)
  91                 if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
  92                 then
  93                         # consume input so fast-export doesn't get SIGPIPE;
  94                         # git would also notice that case, but we want
  95                         # to make sure we are exercising the later
  96                         # error checks
  97                         while read line; do
  98                                 test "done" = "$line" && break
  99                         done
 100                         exit 1
 101                 fi
 102
 103                 before=$(git for-each-ref --format=' %(refname) %(objectname) ')
 104
 105                 git fast-import \
 106                         ${force:+--force} \
 107                         ${testgitmarks:+"--import-marks=$testgitmarks"} \
 108                         ${testgitmarks:+"--export-marks=$testgitmarks"} \
 109                         --quiet
 110
 111                 # figure out which refs were updated
 112                 git for-each-ref --format='%(refname) %(objectname)' |
 113                 while read ref a
 114                 do
 115                         case "$before" in
 116                         *" $ref $a "*)
 117                                 continue ;;     # unchanged
 118                         esac
 119                         if test -z "$GIT_REMOTE_TESTGIT_PUSH_ERROR"
 120                         then
 121                                 echo "ok $ref"
 122                         else
 123                                 echo "error $ref $GIT_REMOTE_TESTGIT_PUSH_ERROR"
 124                         fi
 125                 done
 126
 127                 echo
 128                 ;;
 129         option\ *)
 130                 read cmd opt val <<-EOF
 131                 $line
 132                 EOF
 133                 case $opt in
 134                 force)
 135                         test $val = "true" && force="true" || force=
 136                         echo "ok"
 137                         ;;
 138                 *)
 139                         echo "unsupported"
 140                         ;;
 141                 esac
 142                 ;;
 143         '')
 144                 exit
 145                 ;;
 146         esac
 147 done