t/lib-git-daemon.sh

   1 # Shell library to run git-daemon in tests.  Ends the test early if
   2 # GIT_TEST_GIT_DAEMON is not set.
   3 #
   4 # Usage:
   5 #
   6 #       . ./test-lib.sh
   7 #       . "$TEST_DIRECTORY"/lib-git-daemon.sh
   8 #       start_git_daemon
   9 #
  10 #       test_expect_success '...' '
  11 #               ...
  12 #       '
  13 #
  14 #       test_expect_success ...
  15 #
  16 #       stop_git_daemon
  17 #       test_done
  18
  19 test_tristate GIT_TEST_GIT_DAEMON
  20 if test "$GIT_TEST_GIT_DAEMON" = false
  21 then
  22         skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)"
  23         test_done
  24 fi
  25
  26 if test_have_prereq !PIPE
  27 then
  28         test_skip_or_die $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
  29 fi
  30
  31 test_set_port LIB_GIT_DAEMON_PORT
  32
  33 GIT_DAEMON_PID=
  34 GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
  35 GIT_DAEMON_HOST_PORT=127.0.0.1:$LIB_GIT_DAEMON_PORT
  36 GIT_DAEMON_URL=git://$GIT_DAEMON_HOST_PORT
  37
  38 start_git_daemon() {
  39         if test -n "$GIT_DAEMON_PID"
  40         then
  41                 error "start_git_daemon already called"
  42         fi
  43
  44         mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
  45
  46         trap 'code=$?; stop_git_daemon; (exit $code); die' EXIT
  47
  48         say >&3 "Starting git daemon ..."
  49         mkfifo git_daemon_output
  50         ${LIB_GIT_DAEMON_COMMAND:-git daemon} \
  51                 --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
  52                 --reuseaddr --verbose \
  53                 --base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  54                 "$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  55                 >&3 2>git_daemon_output &
  56         GIT_DAEMON_PID=$!
  57         {
  58                 read -r line <&7
  59                 printf "%s\n" "$line" >&4
  60                 cat <&7 >&4 &
  61         } 7<git_daemon_output &&
  62
  63         # Check expected output
  64         if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
  65         then
  66                 kill "$GIT_DAEMON_PID"
  67                 wait "$GIT_DAEMON_PID"
  68                 trap 'die' EXIT
  69                 test_skip_or_die $GIT_TEST_GIT_DAEMON \
  70                         "git daemon failed to start"
  71         fi
  72 }
  73
  74 stop_git_daemon() {
  75         if test -z "$GIT_DAEMON_PID"
  76         then
  77                 return
  78         fi
  79
  80         trap 'die' EXIT
  81
  82         # kill git-daemon child of git
  83         say >&3 "Stopping git daemon ..."
  84         kill "$GIT_DAEMON_PID"
  85         wait "$GIT_DAEMON_PID" >&3 2>&4
  86         ret=$?
  87         if ! test_match_signal 15 $ret
  88         then
  89                 error "git daemon exited with status: $ret"
  90         fi
  91         GIT_DAEMON_PID=
  92         rm -f git_daemon_output
  93 }
  94
  95 # A stripped-down version of a netcat client, that connects to a "host:port"
  96 # given in $1, sends its stdin followed by EOF, then dumps the response (until
  97 # EOF) to stdout.
  98 fake_nc() {
  99         if ! test_declared_prereq FAKENC
 100         then
 101                 echo >&4 "fake_nc: need to declare FAKENC prerequisite"
 102                 return 127
 103         fi
 104         perl -Mstrict -MIO::Socket::INET -e '
 105                 my $s = IO::Socket::INET->new(shift)
 106                         or die "unable to open socket: $!";
 107                 print $s <STDIN>;
 108                 $s->shutdown(1);
 109                 print <$s>;
 110         ' "$@"
 111 }
 112
 113 test_lazy_prereq FAKENC '
 114         perl -MIO::Socket::INET -e "exit 0"
 115 '