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tests: explicitly use `git.exe` on Windows 

On Windows, when we refer to `/an/absolute/path/to/git`, it magically
resolves `git.exe` at that location. Except if something of the name
`git` exists next to that `git.exe`. So if we call `$BUILD_DIR/git`, it
will find `$BUILD_DIR/git.exe` *only* if there is not, say, a directory
called `$BUILD_DIR/git`.

Such a directory, however, exists in Git for Windows when building with
Visual Studio (our Visual Studio project generator defaults to putting
the build files into a directory whose name is the base name of the
corresponding `.exe`).

In the bin-wrappers/* scripts, we already take pains to use `git.exe`
rather than `git`, as this could pick up the wrong thing on Windows
(i.e. if there exists a `git` file or directory in the build directory).

Now we do the same in the tests' start-up code.

This also helps when testing an installed Git, as there might be even
more likely some stray file or directory in the way.

Note: the only way we can record whether the `.exe` suffix is by writing
it to the `GIT-BUILD-OPTIONS` file and sourcing it at the beginning of
`t/test-lib.sh`. This is not a requirement introduced by this patch, but
we move the call to be able to use the `$X` variable that holds the file
extension, if any.

Note also: the many, many calls to `git this` and `git that` are
unaffected, as the regular PATH search will find the `.exe` files on
Windows (and not be confused by a directory of the name `git` that is
in one of the directories listed in the `PATH` variable), while
`/path/to/git` would not, per se, know that it is looking for an
executable and happily prefer such a directory.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2018-11-14 08:32:11 -08:00 committed by Junio C Hamano
parent ed306e4e0f
commit 8abfdf44c8
3 changed files with 11 additions and 5 deletions
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1
Makefile
View File

@ -2591,6 +2591,7 @@ GIT-BUILD-OPTIONS: FORCE
@echo NO_UNIX_SOCKETS=\''$(subst ','\'',$(subst ','\'',$(NO_UNIX_SOCKETS)))'\' >>$@+
@echo PAGER_ENV=\''$(subst ','\'',$(subst ','\'',$(PAGER_ENV)))'\' >>$@+
@echo DC_SHA1=\''$(subst ','\'',$(subst ','\'',$(DC_SHA1)))'\' >>$@+
@echo X=\'$(X)\' >>$@+
ifdef TEST_OUTPUT_DIRECTORY
@echo TEST_OUTPUT_DIRECTORY=\''$(subst ','\'',$(subst ','\'',$(TEST_OUTPUT_DIRECTORY)))'\' >>$@+
endif

2
t/test-lib-functions.sh
View File

@ -923,7 +923,7 @@ test_create_repo () {
mkdir -p "$repo"
(
cd "$repo" || error "Cannot setup test environment"
"${GIT_TEST_INSTALLED:-$GIT_EXEC_PATH}/git" init \
"${GIT_TEST_INSTALLED:-$GIT_EXEC_PATH}/git$X" init \
"--template=$GIT_BUILD_DIR/templates/blt/" >&3 2>&4 ||
error "cannot run git init -- have you built things yet?"
mv .git/hooks .git/hooks-disabled

13
t/test-lib.sh
View File

@ -49,9 +49,17 @@ export ASAN_OPTIONS
: ${LSAN_OPTIONS=abort_on_error=1}
export LSAN_OPTIONS
if test ! -f "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
then
echo >&2 'error: GIT-BUILD-OPTIONS missing (has Git been built?).'
exit 1
fi
. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
export PERL_PATH SHELL_PATH
################################################################
# It appears that people try to run tests without building...
"${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git" >/dev/null
"${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null
if test $? != 1
then
if test -n "$GIT_TEST_INSTALLED"
@ -63,9 +71,6 @@ then
exit 1
fi
. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
export PERL_PATH SHELL_PATH
# if --tee was passed, write the output not only to the terminal, but
# additionally to the file test-results/$BASENAME.out, too.
case "$GIT_TEST_TEE_STARTED, $* " in