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 #       . "$TEST_DIRECTORY"/lib-git-daemon.sh
   8 #       start_git_daemon
   9 #
  10 #       test_expect_success '...' '
  11 #               ...
  12 #       '
  13 #
  14 #       test_expect_success ...
  15 #
  16 #       test_done
  17
  18 if ! test_bool_env GIT_TEST_GIT_DAEMON true
  19 then
  20         skip_all="git-daemon testing disabled (unset GIT_TEST_GIT_DAEMON to enable)"
  21         test_done
  22 fi
  23
  24 if test_have_prereq !PIPE
  25 then
  26         test_skip_or_die GIT_TEST_GIT_DAEMON "file system does not support FIFOs"
  27 fi
  28
  29 test_set_port LIB_GIT_DAEMON_PORT
  30
  31 GIT_DAEMON_PID=
  32 GIT_DAEMON_PIDFILE="$PWD"/daemon.pid
  33 GIT_DAEMON_DOCUMENT_ROOT_PATH="$PWD"/repo
  34 GIT_DAEMON_HOST_PORT=127.0.0.1:$LIB_GIT_DAEMON_PORT
  35 GIT_DAEMON_URL=git://$GIT_DAEMON_HOST_PORT
  36
  37 registered_stop_git_daemon_atexit_handler=
  38 start_git_daemon() {
  39         if test -n "$GIT_DAEMON_PID"
  40         then
  41                 error "start_git_daemon already called"
  42         fi
  43
  44         mkdir -p "$GIT_DAEMON_DOCUMENT_ROOT_PATH"
  45
  46         # One of the test scripts stops and then re-starts 'git daemon'.
  47         # Don't register and then run the same atexit handlers several times.
  48         if test -z "$registered_stop_git_daemon_atexit_handler"
  49         then
  50                 test_atexit 'stop_git_daemon'
  51                 registered_stop_git_daemon_atexit_handler=AlreadyDone
  52         fi
  53
  54         say >&3 "Starting git daemon ..."
  55         mkfifo git_daemon_output
  56         ${LIB_GIT_DAEMON_COMMAND:-git daemon} \
  57                 --listen=127.0.0.1 --port="$LIB_GIT_DAEMON_PORT" \
  58                 --reuseaddr --verbose --pid-file="$GIT_DAEMON_PIDFILE" \
  59                 --base-path="$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  60                 "$@" "$GIT_DAEMON_DOCUMENT_ROOT_PATH" \
  61                 >&3 2>git_daemon_output &
  62         GIT_DAEMON_PID=$!
  63         {
  64                 read -r line <&7
  65                 printf "%s\n" "$line" >&4
  66                 cat <&7 >&4 &
  67         } 7<git_daemon_output &&
  68
  69         # Check expected output
  70         if test x"$(expr "$line" : "\[[0-9]*\] \(.*\)")" != x"Ready to rumble"
  71         then
  72                 kill "$GIT_DAEMON_PID"
  73                 wait "$GIT_DAEMON_PID"
  74                 unset GIT_DAEMON_PID
  75                 test_skip_or_die GIT_TEST_GIT_DAEMON \
  76                         "git daemon failed to start"
  77         fi
  78 }
  79
  80 stop_git_daemon() {
  81         if test -z "$GIT_DAEMON_PID"
  82         then
  83                 return
  84         fi
  85
  86         # kill git-daemon child of git
  87         say >&3 "Stopping git daemon ..."
  88         kill "$GIT_DAEMON_PID"
  89         wait "$GIT_DAEMON_PID" >&3 2>&4
  90         ret=$?
  91         if ! test_match_signal 15 $ret
  92         then
  93                 error "git daemon exited with status: $ret"
  94         fi
  95         kill "$(cat "$GIT_DAEMON_PIDFILE")" 2>/dev/null
  96         GIT_DAEMON_PID=
  97         rm -f git_daemon_output "$GIT_DAEMON_PIDFILE"
  98 }
  99
 100 # A stripped-down version of a netcat client, that connects to a "host:port"
 101 # given in $1, sends its stdin followed by EOF, then dumps the response (until
 102 # EOF) to stdout.
 103 fake_nc() {
 104         if ! test_declared_prereq FAKENC
 105         then
 106                 echo >&4 "fake_nc: need to declare FAKENC prerequisite"
 107                 return 127
 108         fi
 109         perl -Mstrict -MIO::Socket::INET -e '
 110                 my $s = IO::Socket::INET->new(shift)
 111                         or die "unable to open socket: $!";
 112                 print $s <STDIN>;
 113                 $s->shutdown(1);
 114                 print <$s>;
 115         ' "$@"
 116 }
 117
 118 test_lazy_prereq FAKENC '
 119         perl -MIO::Socket::INET -e "exit 0"
 120 '