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git/t/t4011-diff-symlink.sh

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Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
#!/bin/sh
#
# Copyright (c) 2005 Johannes Schindelin
#
test_description='Test diff of symlinks.
'
. ./test-lib.sh
tests: use $TEST_DIRECTORY to refer to the t/ directory Many test scripts assumed that they will start in a 'trash' subdirectory that is a single level down from the t/ directory, and referred to their test vector files by asking for files like "../t9999/expect". This will break if we move the 'trash' subdirectory elsewhere. To solve this, we earlier introduced "$TEST_DIRECTORY" so that they can refer to t/ directory reliably. This finally makes all the tests use it to refer to the outside environment. With this patch, and a one-liner not included here (because it would contradict with what Dscho really wants to do): | diff --git a/t/test-lib.sh b/t/test-lib.sh | index 70ea7e0..60e69e4 100644 | --- a/t/test-lib.sh | +++ b/t/test-lib.sh | @@ -485,7 +485,7 @@ fi | . ../GIT-BUILD-OPTIONS | | # Test repository | -test="trash directory" | +test="trash directory/another level/yet another" | rm -fr "$test" || { | trap - exit | echo >&5 "FATAL: Cannot prepare test area" all the tests still pass, but we would want extra sets of eyeballs on this type of change to really make sure. [jc: with help from Stephan Beyer on http-push tests I do not run myself; credits for locating silly quoting errors go to Olivier Marin.] Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-08 11:26:28 +02:00
. "$TEST_DIRECTORY"/diff-lib.sh
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
Use prerequisite tags to skip tests that depend on symbolic links Many tests depend on that symbolic links work. This introduces a check that sets the prerequisite tag SYMLINKS if the file system supports symbolic links. Since so many tests have to check for this prerequisite, we do the check in test-lib.sh, so that we don't need to repeat the test in many scripts. To check for 'ln -s' failures, you can use a FAT partition on Linux: $ mkdosfs -C git-on-fat 1000000 $ sudo mount -o loop,uid=j6t,gid=users,shortname=winnt git-on-fat /mnt Clone git to /mnt and $ GIT_SKIP_TESTS='t0001.1[34] t0010 t1301 t403[34] t4129.[47] t5701.7 t7701.3 t9100 t9101.26 t9119 t9124.[67] t9200.10 t9600.6' \ make test (These additionally skipped tests depend on POSIX permissions that FAT on Linux does not provide.) Signed-off-by: Johannes Sixt <j6t@kdbg.org>
2009-03-04 22:38:24 +01:00
if ! test_have_prereq SYMLINKS
then
say 'Symbolic links not supported, skipping tests.'
test_done
fi
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
cat > expected << EOF
diff --git a/frotz b/frotz
new file mode 120000
index 0000000..7c465af
--- /dev/null
+++ b/frotz
@@ -0,0 +1 @@
+xyzzy
\ No newline at end of file
EOF
test_expect_success \
'diff new symlink' \
'ln -s xyzzy frotz &&
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 07:52:14 +02:00
git update-index &&
tree=$(git write-tree) &&
git update-index --add frotz &&
GIT_DIFF_OPTS=--unified=0 git diff-index -M -p $tree > current &&
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
compare_diff_patch current expected'
test_expect_success \
'diff unchanged symlink' \
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 07:52:14 +02:00
'tree=$(git write-tree) &&
git update-index frotz &&
test -z "$(git diff-index --name-only $tree)"'
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
cat > expected << EOF
diff --git a/frotz b/frotz
deleted file mode 120000
index 7c465af..0000000
--- a/frotz
+++ /dev/null
@@ -1 +0,0 @@
-xyzzy
\ No newline at end of file
EOF
test_expect_success \
'diff removed symlink' \
war on "sleep" in tests In many places in test suite we have "sleep"s that do not have to be there. - I do not simply see the point of the one in t3500. It may be making sure that the timestamp order of commits generated during the test is stable, in which case test_tick is the right ingredient to use without wasting tester's time. - The one in t4011 is to make sure that the plumbing diff-index notices the stat-dirtyness of a removed then identically recreated symlink. Keeping the old symlink around to make sure that a newly created symlink gets different ino would be sufficient for that purpose. - The one in t7600 is to make sure that "git merge" does not get confused by stat-dirty "file" in the working tree. Again, keeping the old file around and creating an identical copy to ensure a different ino would be sufficient for that purpose. The "racy git" tests in t0010 are inherently about mtime between the index itself and index entries. The "sleep" in that test must stay as they are. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-07 02:08:54 +02:00
'mv frotz frotz2 &&
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 07:52:14 +02:00
git diff-index -M -p $tree > current &&
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
compare_diff_patch current expected'
cat > expected << EOF
diff --git a/frotz b/frotz
EOF
test_expect_success \
'diff identical, but newly created symlink' \
war on "sleep" in tests In many places in test suite we have "sleep"s that do not have to be there. - I do not simply see the point of the one in t3500. It may be making sure that the timestamp order of commits generated during the test is stable, in which case test_tick is the right ingredient to use without wasting tester's time. - The one in t4011 is to make sure that the plumbing diff-index notices the stat-dirtyness of a removed then identically recreated symlink. Keeping the old symlink around to make sure that a newly created symlink gets different ino would be sufficient for that purpose. - The one in t7600 is to make sure that "git merge" does not get confused by stat-dirty "file" in the working tree. Again, keeping the old file around and creating an identical copy to ensure a different ino would be sufficient for that purpose. The "racy git" tests in t0010 are inherently about mtime between the index itself and index entries. The "sleep" in that test must stay as they are. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-07 02:08:54 +02:00
'ln -s xyzzy frotz &&
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 07:52:14 +02:00
git diff-index -M -p $tree > current &&
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
compare_diff_patch current expected'
cat > expected << EOF
diff --git a/frotz b/frotz
index 7c465af..df1db54 120000
--- a/frotz
+++ b/frotz
@@ -1 +1 @@
-xyzzy
\ No newline at end of file
+yxyyz
\ No newline at end of file
EOF
test_expect_success \
'diff different symlink' \
'rm frotz &&
ln -s yxyyz frotz &&
Rewrite "git-frotz" to "git frotz" This uses the remove-dashes target to replace "git-frotz" to "git frotz". Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-03 07:52:14 +02:00
git diff-index -M -p $tree > current &&
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
compare_diff_patch current expected'
Fix 'git diff --no-index' with a non-existing symlink target When trying to find out mode changes, we should not access the symlink targets using stat(); instead we use lstat() so that the diff does not fail trying to find a non-existing symlink target. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-29 17:30:51 +01:00
test_expect_success \
'diff symlinks with non-existing targets' \
'ln -s narf pinky &&
ln -s take\ over brain &&
test_must_fail git diff --no-index pinky brain > output 2> output.err &&
grep narf output &&
! grep error output.err'
Handle symlinks graciously This patch converts a stat() to an lstat() call, thereby fixing the case when the date of a symlink was not the same as the one recorded in the index. The included test case demonstrates this. This is for the case that the symlink points to a non-existing file. If the file exists, worse things than just an error message happen. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
2005-12-26 22:31:42 +01:00
test_done
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