t/lib-git-p4.sh

   1 #
   2 # Library code for git p4 tests
   3 #
   4
   5 # p4 tests never use the top-level repo; always build/clone into
   6 # a subdirectory called "$git"
   7 TEST_NO_CREATE_REPO=NoThanks
   8
   9 # Some operations require multiple attempts to be successful. Define
  10 # here the maximal retry timeout in seconds.
  11 RETRY_TIMEOUT=60
  12
  13 # Sometimes p4d seems to hang. Terminate the p4d process automatically after
  14 # the defined timeout in seconds.
  15 P4D_TIMEOUT=300
  16
  17 . ./test-lib.sh
  18
  19 if ! test_have_prereq PYTHON
  20 then
  21         skip_all='skipping git p4 tests; python not available'
  22         test_done
  23 fi
  24 ( p4 -h && p4d -h ) >/dev/null 2>&1 || {
  25         skip_all='skipping git p4 tests; no p4 or p4d'
  26         test_done
  27 }
  28
  29 # On cygwin, the NT version of Perforce can be used.  When giving
  30 # it paths, either on the command-line or in client specifications,
  31 # be sure to use the native windows form.
  32 #
  33 # Older versions of perforce were available compiled natively for
  34 # cygwin.  Those do not accept native windows paths, so make sure
  35 # not to convert for them.
  36 native_path() {
  37         path="$1" &&
  38         if test_have_prereq CYGWIN && ! p4 -V | grep -q CYGWIN
  39         then
  40                 path=$(cygpath --windows "$path")
  41         else
  42                 path=$(test-path-utils real_path "$path")
  43         fi &&
  44         echo "$path"
  45 }
  46
  47 # On Solaris the 'date +%s' function is not supported and therefore we
  48 # need this replacement.
  49 # Attention: This function is not safe again against time offset updates
  50 # at runtime (e.g. via NTP). The 'clock_gettime(CLOCK_MONOTONIC)'
  51 # function could fix that but it is not in Python until 3.3.
  52 time_in_seconds() {
  53         (cd / && "$PYTHON_PATH" -c 'import time; print(int(time.time()))')
  54 }
  55
  56 # Try to pick a unique port: guess a large number, then hope
  57 # no more than one of each test is running.
  58 #
  59 # This does not handle the case where somebody else is running the
  60 # same tests and has chosen the same ports.
  61 testid=${this_test#t}
  62 git_p4_test_start=9800
  63 P4DPORT=$((10669 + ($testid - $git_p4_test_start)))
  64
  65 P4PORT=localhost:$P4DPORT
  66 P4CLIENT=client
  67 P4USER=author
  68 P4EDITOR=true
  69 unset P4CHARSET
  70 export P4PORT P4CLIENT P4USER P4EDITOR P4CHARSET
  71
  72 db="$TRASH_DIRECTORY/db"
  73 cli="$TRASH_DIRECTORY/cli"
  74 git="$TRASH_DIRECTORY/git"
  75 pidfile="$TRASH_DIRECTORY/p4d.pid"
  76
  77 # Sometimes "prove" seems to hang on exit because p4d is still running
  78 cleanup() {
  79         if test -f "$pidfile"
  80         then
  81                 kill -9 $(cat "$pidfile") 2>/dev/null && exit 255
  82         fi
  83 }
  84 trap cleanup EXIT
  85
  86 # git p4 submit generates a temp file, which will
  87 # not get cleaned up if the submission fails.  Don't
  88 # clutter up /tmp on the test machine.
  89 TMPDIR="$TRASH_DIRECTORY"
  90 export TMPDIR
  91
  92 start_p4d() {
  93         mkdir -p "$db" "$cli" "$git" &&
  94         rm -f "$pidfile" &&
  95         (
  96                 cd "$db" &&
  97                 {
  98                         p4d -q -p $P4DPORT "$@" &
  99                         echo $! >"$pidfile"
 100                 }
 101         ) &&
 102
 103         # This gives p4d a long time to start up, as it can be
 104         # quite slow depending on the machine.  Set this environment
 105         # variable to something smaller to fail faster in, say,
 106         # an automated test setup.  If the p4d process dies, that
 107         # will be caught with the "kill -0" check below.
 108         i=${P4D_START_PATIENCE:-300}
 109         pid=$(cat "$pidfile")
 110
 111         timeout=$(($(time_in_seconds) + $P4D_TIMEOUT))
 112         while true
 113         do
 114                 if test $(time_in_seconds) -gt $timeout
 115                 then
 116                         kill -9 $pid
 117                         exit 1
 118                 fi
 119                 sleep 1
 120         done &
 121         watchdog_pid=$!
 122
 123         ready=
 124         while test $i -gt 0
 125         do
 126                 # succeed when p4 client commands start to work
 127                 if p4 info >/dev/null 2>&1
 128                 then
 129                         ready=true
 130                         break
 131                 fi
 132                 # fail if p4d died
 133                 kill -0 $pid 2>/dev/null || break
 134                 echo waiting for p4d to start
 135                 sleep 1
 136                 i=$(( $i - 1 ))
 137         done
 138
 139         if test -z "$ready"
 140         then
 141                 # p4d failed to start
 142                 return 1
 143         fi
 144
 145         # build a p4 user so author@example.com has an entry
 146         p4_add_user author
 147
 148         # build a client
 149         client_view "//depot/... //client/..." &&
 150
 151         return 0
 152 }
 153
 154 p4_add_user() {
 155         name=$1 &&
 156         p4 user -f -i <<-EOF
 157         User: $name
 158         Email: $name@example.com
 159         FullName: Dr. $name
 160         EOF
 161 }
 162
 163 retry_until_success() {
 164         timeout=$(($(time_in_seconds) + $RETRY_TIMEOUT))
 165         until "$@" 2>/dev/null || test $(time_in_seconds) -gt $timeout
 166         do
 167                 sleep 1
 168         done
 169 }
 170
 171 retry_until_fail() {
 172         timeout=$(($(time_in_seconds) + $RETRY_TIMEOUT))
 173         until ! "$@" 2>/dev/null || test $(time_in_seconds) -gt $timeout
 174         do
 175                 sleep 1
 176         done
 177 }
 178
 179 kill_p4d() {
 180         pid=$(cat "$pidfile")
 181         retry_until_fail kill $pid
 182         retry_until_fail kill -9 $pid
 183         # complain if it would not die
 184         test_must_fail kill $pid >/dev/null 2>&1 &&
 185         rm -rf "$db" "$cli" "$pidfile" &&
 186         retry_until_fail kill -9 $watchdog_pid
 187 }
 188
 189 cleanup_git() {
 190         retry_until_success rm -r "$git"
 191         test_must_fail test -d "$git" &&
 192         retry_until_success mkdir "$git"
 193 }
 194
 195 marshal_dump() {
 196         what=$1 &&
 197         line=${2:-1} &&
 198         cat >"$TRASH_DIRECTORY/marshal-dump.py" <<-EOF &&
 199         import marshal
 200         import sys
 201         instream = getattr(sys.stdin, 'buffer', sys.stdin)
 202         for i in range($line):
 203             d = marshal.load(instream)
 204         print(d[b'$what'].decode('utf-8'))
 205         EOF
 206         "$PYTHON_PATH" "$TRASH_DIRECTORY/marshal-dump.py"
 207 }
 208
 209 #
 210 # Construct a client with this list of View lines
 211 #
 212 client_view() {
 213         (
 214                 cat <<-EOF &&
 215                 Client: $P4CLIENT
 216                 Description: $P4CLIENT
 217                 Root: $cli
 218                 AltRoots: $(native_path "$cli")
 219                 LineEnd: unix
 220                 View:
 221                 EOF
 222                 printf "\t%s\n" "$@"
 223         ) | p4 client -i
 224 }
 225
 226 is_cli_file_writeable() {
 227         # cygwin version of p4 does not set read-only attr,
 228         # will be marked 444 but -w is true
 229         file="$1" &&
 230         if test_have_prereq CYGWIN && p4 -V | grep -q CYGWIN
 231         then
 232                 stat=$(stat --format=%a "$file") &&
 233                 test $stat = 644
 234         else
 235                 test -w "$file"
 236         fi
 237 }