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 #       . "$TEST_DIRECTORY"/lib-git-daemon.sh
   8 #       start_git_daemon
   9 #
  10 #       test_expect_success '...' '
  11 #               ...
  12 #       '
  13 #
  14 #       test_expect_success ...
  15 #
  16 #       test_done
  17
  18 test_tristate GIT_TEST_GIT_DAEMON
  19 if test "$GIT_TEST_GIT_DAEMON" = false
  20 then
  21         skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)"
  22         test_done
  23 fi
  24
  25 if test_have_prereq !PIPE
  26 then
  27         test_skip_or_die $GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
  28 fi
  29
  30 test_set_port LIB_GIT_DAEMON_PORT
  31
  32 GIT_DAEMON_PID=
  33 GIT_DAEMON_PIDFILE="$PWD"/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://$GIT_DAEMON_HOST_PORT
  37
  38 registered_stop_git_daemon_atexit_handler=
  39 start_git_daemon() {
  40         if test -n "$GIT_DAEMON_PID"
  41         then
  42                 error "start_git_daemon already called"
  43         fi
  44
  45         mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
  46
  47         # One of the test scripts stops and then re-starts 'git daemon'.
  48         # Don't register and then run the same atexit handlers several times.
  49         if test -z "$registered_stop_git_daemon_atexit_handler"
  50         then
  51                 test_atexit 'stop_git_daemon'
  52                 registered_stop_git_daemon_atexit_handler=AlreadyDone
  53         fi
  54
  55         say >&3 "Starting git daemon ..."
  56         mkfifo git_daemon_output
  57         ${LIB_GIT_DAEMON_COMMAND:-git daemon} \
  58                 --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
  59                 --reuseaddr --verbose --pid-file="$GIT_DAEMON_PIDFILE" \
  60                 --base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  61                 "$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  62                 >&3 2>git_daemon_output &
  63         GIT_DAEMON_PID=$!
  64         {
  65                 read -r line <&7
  66                 printf "%s\n" "$line" >&4
  67                 cat <&7 >&4 &
  68         } 7<git_daemon_output &&
  69
  70         # Check expected output
  71         if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
  72         then
  73                 kill "$GIT_DAEMON_PID"
  74                 wait "$GIT_DAEMON_PID"
  75                 unset GIT_DAEMON_PID
  76                 test_skip_or_die $GIT_TEST_GIT_DAEMON \
  77                         "git daemon failed to start"
  78         fi
  79 }
  80
  81 stop_git_daemon() {
  82         if test -z "$GIT_DAEMON_PID"
  83         then
  84                 return
  85         fi
  86
  87         # kill git-daemon child of git
  88         say >&3 "Stopping git daemon ..."
  89         kill "$GIT_DAEMON_PID"
  90         wait "$GIT_DAEMON_PID" >&3 2>&4
  91         ret=$?
  92         if ! test_match_signal 15 $ret
  93         then
  94                 error "git daemon exited with status: $ret"
  95         fi
  96         kill "$(cat "$GIT_DAEMON_PIDFILE")" 2>/dev/null
  97         GIT_DAEMON_PID=
  98         rm -f git_daemon_output "$GIT_DAEMON_PIDFILE"
  99 }
 100
 101 # A stripped-down version of a netcat client, that connects to a "host:port"
 102 # given in $1, sends its stdin followed by EOF, then dumps the response (until
 103 # EOF) to stdout.
 104 fake_nc() {
 105         if ! test_declared_prereq FAKENC
 106         then
 107                 echo >&4 "fake_nc: need to declare FAKENC prerequisite"
 108                 return 127
 109         fi
 110         perl -Mstrict -MIO::Socket::INET -e '
 111                 my $s = IO::Socket::INET->new(shift)
 112                         or die "unable to open socket: $!";
 113                 print $s <STDIN>;
 114                 $s->shutdown(1);
 115                 print <$s>;
 116         ' "$@"
 117 }
 118
 119 test_lazy_prereq FAKENC '
 120         perl -MIO::Socket::INET -e "exit 0"
 121 '