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2014-03-14Merge branch 'tr/diff-submodule-no-reuse-worktree'Libravatar Junio C Hamano1-1/+29
"git diff --external-diff" incorrectly fed the submodule directory in the working tree to the external diff driver when it knew it is the same as one of the versions being compared. * tr/diff-submodule-no-reuse-worktree: diff: do not reuse_worktree_file for submodules
2014-02-18diff: do not reuse_worktree_file for submodulesLibravatar Thomas Rast1-1/+29
The GIT_EXTERNAL_DIFF calling code attempts to reuse existing worktree files for the worktree side of diffs, for performance reasons. However, that code also tries to do the same with submodules. This results in calls to $GIT_EXTERNAL_DIFF where the old-file is a file of the form "Submodule commit $sha1", but the new-file is a directory in the worktree. Fix it by never reusing a worktree "file" in the submodule case. Reported-by: Grégory Pakosz <gregory.pakosz@gmail.com> Signed-off-by: Thomas Rast <tr@thomasrast.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-06difftool: display the number of files in the diff queue in the promptLibravatar Zoltan Klinger1-0/+13
When --prompt option is set, git-difftool displays a prompt for each modified file to be viewed in an external diff program. At that point, it could be useful to display a counter and the total number of files in the diff queue. Below is the current difftool prompt for the first of 5 modified files: Viewing: 'diff.c' Launch 'vimdiff' [Y/n]: Consider the modified prompt: Viewing (1/5): 'diff.c' Launch 'vimdiff' [Y/n]: The current GIT_EXTERNAL_DIFF mechanism does not tell the number of paths in the diff queue nor the current counter. To make this "counter/total" info available for GIT_EXTERNAL_DIFF programs without breaking existing ones by doing the following: - Keep track of the number of paths shown so far in diff_options; - Export two new environment variables from run_external_diff() to show the total number of paths (from diff_queue_struct) and the current value of the counter (from diff_options); and - Update git-difftool--helper to use these two environment variables. Signed-off-by: Zoltan Klinger <zoltan.klinger@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-29t: use perl instead of "$PERL_PATH" where applicableLibravatar Jeff King1-1/+1
As of the last commit, we can use "perl" instead of "$PERL_PATH" when running tests, as the former is now a function which uses the latter. As the shorter "perl" is easier on the eyes, let's switch to using it everywhere. This is not quite a mechanical s/$PERL_PATH/perl/ replacement, though. There are some places where we invoke perl from a script we generate on the fly, and those scripts do not have access to our internal shell functions. The result can be double-checked by running: ln -s /bin/false bin-wrappers/perl make test which continues to pass even after this patch. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-23Merge branch 'jv/maint-no-ext-diff'Libravatar Junio C Hamano1-0/+59
"git diff --no-ext-diff" did not output anything for a typechange filepair when GIT_EXTERNAL_DIFF is in effect. * jv/maint-no-ext-diff: diff: test precedence of external diff drivers diff: correctly disable external_diff with --no-ext-diff
2012-07-19diff: test precedence of external diff driversLibravatar Jeff King1-0/+40
There are three ways to specify an external diff command: GIT_EXTERNAL_DIFF in the environment, diff.external in the config, or a "diff" gitattribute. The current order of precedence is: 1. gitattribute 2. GIT_EXTERNAL_DIFF 3. diff.external Usually our rule is that environment variables should take precedence over on-disk config (i.e., option 2 should come before option 1). However, this situation is trickier than some, because option 1 is more specific to the individual file than option 2 (which affects all files), so it might be preferable. So the current behavior can be seen as implementing "do the specific thing if we can, but fall back to this general thing". This is probably not what we would do if we were writing git from scratch, but it has been this way for several years, and is not worth changing. So let's at least document that this is the way it's supposed to work with a test. While we're there, let's also make sure that diff.external (which was not previously tested at all) works by running it through the same tests as GIT_EXTERNAL_DIFF. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-07-17diff: correctly disable external_diff with --no-ext-diffLibravatar Junio C Hamano1-0/+19
Upon seeing a type-change filepair, "diff --no-ext-diff" does not show the usual "deletion followed by addition" split patch and does not run the external diff driver either. This is because the logic to disable external diff was placed at a wrong level in the callchain. run_diff_cmd() decides to show the split patch only when external diff driver is not configured or specified via GIT_EXTERNAL_DIFF environment, but this is done before checking if --no-ext-diff was given. To make things worse, run_diff_cmd() checks --no-ext-diff and disables the output for such a filepair completely, as the callchain below it (e.g. builtin_diff) does not want to handle typechange filepairs. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-24tests: enclose $PERL_PATH in double quotesLibravatar Junio C Hamano1-1/+1
Otherwise it will be split at a space after "Program" when it is set to "\\Program Files\perl" or something silly like that. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-06-12t: Replace 'perl' by $PERL_PATHLibravatar Vincent van Ravesteijn1-1/+1
GIT-BUILD-OPTIONS defines PERL_PATH to be used in the test suite. Only a few tests already actually use this variable when perl is needed. The other test just call 'perl' and it might happen that the wrong perl interpreter is used. This becomes problematic on Windows, when the perl interpreter that is compiled and installed on the Windows system is used, because this perl interpreter might introduce some unexpected LF->CRLF conversions. This patch makes sure that $PERL_PATH is used everywhere in the test suite and that the correct perl interpreter is used. Signed-off-by: Vincent van Ravesteijn <vfr@lyx.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-04-23test: use $_z40 from test-libLibravatar Junio C Hamano1-2/+0
There is no need to duplicate the definition of $_z40 and $_x40 that test-lib.sh supplies the test scripts. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-09tests: use "$TEST_DIRECTORY" instead of ".."Libravatar Jeff King1-1/+1
The $TEST_DIRECTORY variable allows tests to find the top-level test directory regardless of the current working directory. In the past, this has been used to accomodate tests which change directories, but it is also the first step to being able to move trash directories outside of the $TEST_DIRECTORY hierarchy. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31diff: generate pretty filenames in prep_temp_blob()Libravatar David Aguilar1-0/+9
Naturally, prep_temp_blob() did not care about filenames. As a result, GIT_EXTERNAL_DIFF and textconv generated filenames such as ".diff_XXXXXX". This modifies prep_temp_blob() to generate user-friendly filenames when creating temporary files. Diffing "name.ext" now generates "XXXXXX_name.ext". Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-28Merge branch 'jc/maint-1.6.0-diff-borrow-carefully'Libravatar Junio C Hamano1-0/+8
* jc/maint-1.6.0-diff-borrow-carefully: diff --cached: do not borrow from a work tree when a path is marked as assume-unchanged
2009-03-22diff --cached: do not borrow from a work tree when a path is marked as ↵Libravatar Junio C Hamano1-0/+8
assume-unchanged When the index says that the file in the work tree that corresponds to the blob object that is used for comparison is known to be unchanged, "diff" reads from the file and applies convert_to_git(), instead of inflating the object, to feed the internal diff engine with, because an earlier benchnark found that it tends to be faster to use this optimization. However, the index can lie when the path is marked as assume-unchanged. Disable the optimization for such paths. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-22Smudge the files fed to external diff and textconvLibravatar Johannes Schindelin1-0/+16
When preparing temporary files for an external diff or textconv, it is easier on the external tools, especially when they are implemented using platform tools, if they are fed the input after convert_to_working_tree(). This fixes msysGit issue 177. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-12Bugfix: GIT_EXTERNAL_DIFF with more than one changed filesLibravatar Nazri Ramliy1-0/+8
When there is more than one file that are changed, running git diff with GIT_EXTERNAL_DIFF incorrectly diagnoses an programming error and dies. The check introduced in 479b0ae (diff: refactor tempfile cleanup handling, 2009-01-22) to detect a temporary file slot that forgot to remove its temporary file was inconsistent with the way the codepath to remove the temporary to mark the slot that it is done with it. This patch fixes this problem and adds a test case for it. Signed-off-by: Nazri Ramliy <ayiehere@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-26Merge branch 'maint'Libravatar Junio C Hamano1-0/+21
* maint: Teach "git diff" to honour --[no-]ext-diff
2008-11-26Teach "git diff" to honour --[no-]ext-diffLibravatar Junio C Hamano1-0/+21
The original intention of 72909be (Add diff-option --ext-diff, 2007-06-30) was to optionally allow the use of external diff viewer in "git log" family (while keeping them disabled by default). It exposed the "allow external diff" bit to the UI, but forgot to adjust the "git diff" codepath that was set up to always allow use of the external diff viewer. Noticed by Nazri Ramliy; tests by René Scharfe squashed in. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-17tests: use $TEST_DIRECTORY to refer to the t/ directoryLibravatar Junio C Hamano1-1/+1
Many test scripts assumed that they will start in a 'trash' subdirectory that is a single level down from the t/ directory, and referred to their test vector files by asking for files like "../t9999/expect". This will break if we move the 'trash' subdirectory elsewhere. To solve this, we earlier introduced "$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>
2008-03-13t4020: don't use grep -aLibravatar Jeff King1-1/+2
Solaris /usr/bin/grep doesn't understand "-a". In this case we can just include the expected output with the test, which is a better test anyway. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-03-13more tr portability test script fixesLibravatar Jeff King1-1/+1
Dealing with NULs is not always safe with tr. On Solaris, incoming NULs are silently deleted by both the System V and UCB versions of tr. When converting to NULs, the System V version works fine, but the UCB version silently ignores the request to convert the character. This patch changes all instances of tr using NULs to use "perl -pe 'y///'" instead. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-17the use of 'tr' in the test suite isn't really portableLibravatar H.Merijn Brand1-1/+1
Some versions of 'tr' only accept octal codes if entered with three digits, and therefor misinterpret the '\0' in the test suite. Some versions of 'tr' reject the (needless) use of character classes. Signed-off-by: H.Merijn Brand <h.m.brand@xs4all.nl> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-07-07diff: honor binariness specified in attributesLibravatar Junio C Hamano1-0/+12
The code shuffling mistakenly lost binariness specified with the attribute mecahnism and made it always guess from the data. Noticed by Johannes, with two test cases to t4020. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-04-22Support 'diff=pgm' attributeLibravatar Junio C Hamano1-0/+97
This enhances the attributes mechanism so that external programs meant for existing GIT_EXTERNAL_DIFF interface can be specifed per path. To configure such a custom diff driver, first define a custom diff driver in the configuration: [diff "my-c-diff"] command = <<your command string comes here>> Then mark the paths that you want to use this custom driver using the attribute mechanism. *.c diff=my-c-diff The intent of this separation is that the attribute mechanism is used for specifying the type of the contents, while the configuration mechanism is used to define what needs to be done to that type of the contents, which would be specific to both platform and personal taste. Signed-off-by: Junio C Hamano <junkio@cox.net>