[PATCH 08/21] git p4 test: translate windows paths for cygwin

From: Pete Wyckoff <pw@padd.com>
Date: Sep 28, 2012, 12:04 UTC
Message-ID: <1348833865-6093-9-git-send-email-pw@padd.com>
In-Reply-To: <1348833865-6093-1-git-send-email-pw@padd.com>

Native windows binaries do not understand posix-like path mapping offered by cygwin. Convert paths to native using "cygpath --windows" before presenting them to p4d.

This is done using the AltRoots mechanism of p4. Both the posix and windows forms are put in the client specification, allowing p4 to find its location by native path even though the environment reports a different PWD.

Shell operations in tests will use the normal form of $cli, which will look like a posix path in cygwin, while p4 will use AltRoots to match against the windows form of the working directory.

Thanks-to: Sebastian Schuberth <sschuberth@gmail.com>
Thanks-to: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Pete Wyckoff <pw@padd.com>
---
 t/lib-git-p4.sh | 24 ++++++++++++++++++++++--
 t/test-lib.sh   |  3 +++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/t/lib-git-p4.sh b/t/lib-git-p4.sh
index 402d736..e2941ac 100644
--- a/t/lib-git-p4.sh
+++ b/t/lib-git-p4.sh
@@ -8,7 +8,8 @@ TEST_NO_CREATE_REPO=NoThanks
 
 . ./test-lib.sh
 
-if ! test_have_prereq PYTHON; then
+if ! test_have_prereq PYTHON
+then
 	skip_all='skipping git p4 tests; python not available'
 	test_done
 fi
@@ -17,6 +18,24 @@ fi
 	test_done
 }
 
+# On cygwin, the NT version of Perforce can be used.  When giving
+# it paths, either on the command-line or in client specifications,
+# be sure to use the native windows form.
+#
+# Older versions of perforce were available compiled natively for
+# cygwin.  Those do not accept native windows paths, so make sure
+# not to convert for them.
+native_path() {
+	path="$1" &&
+	if test_have_prereq CYGWIN && ! p4 -V | grep -q CYGWIN
+	then
+		path=$(cygpath --windows "$path")
+	else
+		path=$(test-path-utils real_path "$path")
+	fi &&
+	echo "$path"
+}
+
 # Try to pick a unique port: guess a large number, then hope
 # no more than one of each test is running.
 #
@@ -32,7 +51,7 @@ P4EDITOR=:
 export P4PORT P4CLIENT P4EDITOR
 
 db="$TRASH_DIRECTORY/db"
-cli=$(test-path-utils real_path "$TRASH_DIRECTORY/cli")
+cli="$TRASH_DIRECTORY/cli"
 git="$TRASH_DIRECTORY/git"
 pidfile="$TRASH_DIRECTORY/p4d.pid"
 
@@ -122,6 +141,7 @@ client_view() {
 		Client: $P4CLIENT
 		Description: $P4CLIENT
 		Root: $cli
+		AltRoots: $(native_path "$cli")
 		View:
 		EOF
 		for arg ; do
diff --git a/t/test-lib.sh b/t/test-lib.sh
index f8e3733..fd04870 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -624,12 +624,14 @@ case $(uname -s) in
 	# backslashes in pathspec are converted to '/'
 	# exec does not inherit the PID
 	test_set_prereq MINGW
+	test_set_prereq NOT_CYGWIN
 	test_set_prereq SED_STRIPS_CR
 	;;
 *CYGWIN*)
 	test_set_prereq POSIXPERM
 	test_set_prereq EXECKEEPSPID
 	test_set_prereq NOT_MINGW
+	test_set_prereq CYGWIN
 	test_set_prereq SED_STRIPS_CR
 	;;
 *)
@@ -637,6 +639,7 @@ case $(uname -s) in
 	test_set_prereq BSLASHPSPEC
 	test_set_prereq EXECKEEPSPID
 	test_set_prereq NOT_MINGW
+	test_set_prereq NOT_CYGWIN
 	;;
 esac

-- 
1.7.12.1.403.g28165e1