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 $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
  29 fi
  30
  31 test_set_port LIB_GIT_DAEMON_PORT
  32
  33 GIT_DAEMON_PID=
  34 GIT_DAEMON_PIDFILE="$PWD"/daemon.pid
  35 GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
  36 GIT_DAEMON_HOST_PORT=127.0.0.1:$LIB_GIT_DAEMON_PORT
  37 GIT_DAEMON_URL=git://$GIT_DAEMON_HOST_PORT
  38
  39 start_git_daemon() {
  40         if test -n "$GIT_DAEMON_PID"
  41         then
  42                 error "start_git_daemon already called"
  43         fi
  44
  45         mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
  46
  47         trap 'code=$?; stop_git_daemon; (exit $code); die' EXIT
  48
  49         say >&3 "Starting git daemon ..."
  50         mkfifo git_daemon_output
  51         ${LIB_GIT_DAEMON_COMMAND:-git daemon} \
  52                 --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
  53                 --reuseaddr --verbose --pid-file="$GIT_DAEMON_PIDFILE" \
  54                 --base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  55                 "$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  56                 >&3 2>git_daemon_output &
  57         GIT_DAEMON_PID=$!
  58         {
  59                 read -r line <&7
  60                 printf "%s\n" "$line" >&4
  61                 cat <&7 >&4 &
  62         } 7<git_daemon_output &&
  63
  64         # Check expected output
  65         if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
  66         then
  67                 kill "$GIT_DAEMON_PID"
  68                 wait "$GIT_DAEMON_PID"
  69                 trap 'die' EXIT
  70                 test_skip_or_die $GIT_TEST_GIT_DAEMON \
  71                         "git daemon failed to start"
  72         fi
  73 }
  74
  75 stop_git_daemon() {
  76         if test -z "$GIT_DAEMON_PID"
  77         then
  78                 return
  79         fi
  80
  81         trap 'die' EXIT
  82
  83         # kill git-daemon child of git
  84         say >&3 "Stopping git daemon ..."
  85         kill "$GIT_DAEMON_PID"
  86         wait "$GIT_DAEMON_PID" >&3 2>&4
  87         ret=$?
  88         if ! test_match_signal 15 $ret
  89         then
  90                 error "git daemon exited with status: $ret"
  91         fi
  92         kill "$(cat "$GIT_DAEMON_PIDFILE")" 2>/dev/null
  93         GIT_DAEMON_PID=
  94         rm -f git_daemon_output "$GIT_DAEMON_PIDFILE"
  95 }
  96
  97 # A stripped-down version of a netcat client, that connects to a "host:port"
  98 # given in $1, sends its stdin followed by EOF, then dumps the response (until
  99 # EOF) to stdout.
 100 fake_nc() {
 101         if ! test_declared_prereq FAKENC
 102         then
 103                 echo >&4 "fake_nc: need to declare FAKENC prerequisite"
 104                 return 127
 105         fi
 106         perl -Mstrict -MIO::Socket::INET -e '
 107                 my $s = IO::Socket::INET->new(shift)
 108                         or die "unable to open socket: $!";
 109                 print $s <STDIN>;
 110                 $s->shutdown(1);
 111                 print <$s>;
 112         ' "$@"
 113 }
 114
 115 test_lazy_prereq FAKENC '
 116         perl -MIO::Socket::INET -e "exit 0"
 117 '