git-remote-testgit.sh

   1 #!/bin/sh
   2 # Copyright (c) 2012 Felipe Contreras
   3
   4 alias=$1
   5 url=$2
   6
   7 dir="$GIT_DIR/testgit/$alias"
   8 prefix="refs/testgit/$alias"
   9
  10 default_refspec="refs/heads/*:${prefix}/heads/*"
  11
  12 refspec="${GIT_REMOTE_TESTGIT_REFSPEC-$default_refspec}"
  13
  14 test -z "$refspec" && prefix="refs"
  15
  16 export GIT_DIR="$url/.git"
  17
  18 mkdir -p "$dir"
  19
  20 if test -z "$GIT_REMOTE_TESTGIT_NO_MARKS"
  21 then
  22         gitmarks="$dir/git.marks"
  23         testgitmarks="$dir/testgit.marks"
  24         test -e "$gitmarks" || >"$gitmarks"
  25         test -e "$testgitmarks" || >"$testgitmarks"
  26 fi
  27
  28 while read line
  29 do
  30         case $line in
  31         capabilities)
  32                 echo 'import'
  33                 echo 'export'
  34                 test -n "$refspec" && echo "refspec $refspec"
  35                 if test -n "$gitmarks"
  36                 then
  37                         echo "*import-marks $gitmarks"
  38                         echo "*export-marks $gitmarks"
  39                 fi
  40                 echo
  41                 ;;
  42         list)
  43                 git for-each-ref --format='? %(refname)' 'refs/heads/'
  44                 head=$(git symbolic-ref HEAD)
  45                 echo "@$head HEAD"
  46                 echo
  47                 ;;
  48         import*)
  49                 # read all import lines
  50                 while true
  51                 do
  52                         ref="${line#* }"
  53                         refs="$refs $ref"
  54                         read line
  55                         test "${line%% *}" != "import" && break
  56                 done
  57
  58                 if test -n "$gitmarks"
  59                 then
  60                         echo "feature import-marks=$gitmarks"
  61                         echo "feature export-marks=$gitmarks"
  62                 fi
  63
  64                 if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
  65                 then
  66                         echo "feature done"
  67                         exit 1
  68                 fi
  69
  70                 echo "feature done"
  71                 git fast-export \
  72                         ${testgitmarks:+"--import-marks=$testgitmarks"} \
  73                         ${testgitmarks:+"--export-marks=$testgitmarks"} \
  74                         $refs |
  75                 sed -e "s#refs/heads/#${prefix}/heads/#g"
  76                 echo "done"
  77                 ;;
  78         export)
  79                 if test -n "$GIT_REMOTE_TESTGIT_FAILURE"
  80                 then
  81                         # consume input so fast-export doesn't get SIGPIPE;
  82                         # git would also notice that case, but we want
  83                         # to make sure we are exercising the later
  84                         # error checks
  85                         while read line; do
  86                                 test "done" = "$line" && break
  87                         done
  88                         exit 1
  89                 fi
  90
  91                 before=$(git for-each-ref --format=' %(refname) %(objectname) ')
  92
  93                 git fast-import \
  94                         ${testgitmarks:+"--import-marks=$testgitmarks"} \
  95                         ${testgitmarks:+"--export-marks=$testgitmarks"} \
  96                         --quiet
  97
  98                 # figure out which refs were updated
  99                 git for-each-ref --format='%(refname) %(objectname)' |
 100                 while read ref a
 101                 do
 102                         case "$before" in
 103                         *" $ref $a "*)
 104                                 continue ;;     # unchanged
 105                         esac
 106                         echo "ok $ref"
 107                 done
 108
 109                 echo
 110                 ;;
 111         '')
 112                 exit
 113                 ;;
 114         esac
 115 done