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27 commits

Author SHA1 Message Date
Junio C Hamano 9a01387b97 Merge branch 'kc/maint-diff-bwi-fix'
* kc/maint-diff-bwi-fix:
  Fix combined use of whitespace ignore options to diff
2009-01-21 17:07:51 -08:00
Keith Cascio 6d12acefd5 Fix combined use of whitespace ignore options to diff
The code used to misbehave when options to ignore certain whitespaces
(-w -b and --ignore-at-eol) were combined.

Signed-off-by: Keith Cascio <keith@cs.ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-19 21:21:58 -08:00
Keith Cascio 537a071f41 test more combinations of ignore-whitespace options to diff
There are three flags involved (-w -b and --ignore-space-at-eol) which
makes 8 combinations possible in total, but only 3 cases are tested (none,
-w alone and -b alone).

This adds the other 5 cases.

Signed-off-by: Keith Cascio <keith@cs.ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-19 21:17:38 -08:00
Keith Cascio 7a38329130 test more combinations of ignore-whitespace options to diff
There are three flags involved (-w -b and --ignore-space-at-eol) which
makes 8 combinations possible in total, but only 3 cases are tested (none,
-w alone and -b alone).

This adds the other 5 cases.

Signed-off-by: Keith Cascio <keith@cs.ucla.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17 23:43:31 -08:00
Junio C Hamano 49d3536594 Merge branch 'maint' to sync with 1.6.0.1 2008-08-24 14:50:44 -07:00
Alexander Gavrilov 5e568f9e30 Respect core.autocrlf in combined diff
Fix git-diff to make it produce useful 3-way diffs for merge conflicts in
repositories with autocrlf enabled. Otherwise it always reports that the
whole file was changed, because it uses the contents from the working tree
without necessary conversion.

Signed-off-by: Alexander Gavrilov <angavrilov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-23 23:59:20 -07:00
Junio C Hamano f02fa33605 Merge branch 'jc/test-deeper'
* jc/test-deeper:
  tests: use $TEST_DIRECTORY to refer to the t/ directory
2008-08-20 23:40:59 -07:00
Junio C Hamano c35539eb10 diff --check: do not get confused by new blank lines in the middle
The code remembered that the last diff output it saw was an empty line,
and tried to reset that state whenever it sees a context line, a non-blank
new line, or a new hunk.  However, this codepath asks the underlying diff
engine to feed diff without any context, and the "just saw an empty line"
state was not reset if you added a new blank line in the last hunk of your
patch, even if it is not the last line of the file.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-20 13:28:19 -07:00
Junio C Hamano bfdbee9810 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>
2008-08-17 00:41:52 -07:00
Stephan Beyer d492b31caf t/: Use "test_must_fail git" instead of "! git"
This patch changes every occurrence of "! git" -- with the meaning
that a git call has to gracefully fail -- into "test_must_fail git".

This is useful to

 - make sure the test does not fail because of a signal,
   e.g. SIGSEGV, and

 - advertise the use of "test_must_fail" for new tests.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-07-13 13:21:26 -07:00
Junio C Hamano 877f23ccb8 Teach "diff --check" about new blank lines at end
When a patch adds new blank lines at the end, "git apply --whitespace"
warns.  This teaches "diff --check" to do the same.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-26 22:07:26 -07:00
Jeff King 74f16b0c6f mask necessary whitespace policy violations in test scripts
All of these violations are necessary parts of the tests
(which are generally checking the behavior of trailing
whitespace, or contain diff fragments with empty lines).

Our solution is two-fold:

  1. Process input with whitespace problems using tr. This
     has the added bonus that it becomes very obvious where
     the bogus whitespace is intended to go.

  2. Move large diff fragments into their own supplemental
     files. This gets rid of the whitespace problem, since
     supplemental files are not checked, and it also makes
     the test script a bit easier to read.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-06-14 11:39:16 -07:00
Junio C Hamano 3af828634f tests: do not use implicit "git diff --no-index"
As a general principle, we should not use "git diff" to validate the
results of what git command that is being tested has done.  We would not
know if we are testing the command in question, or locating a bug in the
cute hack of "git diff --no-index".

Rather use test_cmp for that purpose.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-05-24 00:01:56 -07:00
Junio C Hamano 0ef617f4b6 diff: Fix miscounting of --check output
c1795bb (Unify whitespace checking) incorrectly made the
checking function return without incrementing the line numbers
when there is no whitespace problem is found on a '+' line.

This resurrects the earlier behaviour.

Noticed and reported by Jay Soffian.  The test script was stolen
from Jay's independent fix.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-02-15 23:06:57 -08:00
J. Bruce Fields 9afa2d4aa9 whitespace: fix initial-indent checking
After this patch, "written" counts the number of bytes up to and
including the most recently seen tab.  This allows us to detect (and
count) spaces by comparing to "i".

This allows catching initial indents like '\t        ' (a tab followed
by 8 spaces), while previously indent-with-non-tab caught only indents
that consisted entirely of spaces.

This also allows fixing an indent-with-non-tab regression, so we can
again detect indents like '\t \t'.

Also update tests to catch these cases.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-16 13:07:49 -08:00
J. Bruce Fields 4d9697c787 whitespace: fix off-by-one error in non-space-in-indent checking
If there were no tabs, and the last space was at position 7, then
positions 0..7 had spaces, so there were 8 spaces.

Update test to check exactly this case.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-16 13:07:14 -08:00
Wincent Colaiuta 420f4f04de Use shorter error messages for whitespace problems
The initial version of the whitespace_error_string() function took the
messages from builtin-apply.c rather than the shorter messages from
diff.c.

This commit addresses Junio's concern that these messages might be too
long (now that we can emit multiple warnings per line).

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-14 20:51:58 -08:00
Wincent Colaiuta f817546652 Add tests for "git diff --check" with core.whitespace options
Make sure that "git diff --check" does the right thing when the
core.whitespace options are set.

While we are at it, correct many uses of test_expect_failure that
ran sequence of commands.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13 23:53:20 -08:00
Wincent Colaiuta c1795bb08a Unify whitespace checking
This commit unifies three separate places where whitespace checking was
performed:

 - the whitespace checking previously done in builtin-apply.c is
extracted into a function in ws.c

 - the equivalent logic in "git diff" is removed

 - the emit_line_with_ws() function is also removed because that also
rechecks the whitespace, and its functionality is rolled into ws.c

The new function is called check_and_emit_line() and it does two things:
checks a line for whitespace errors and optionally emits it. The checking
is based on lines of content rather than patch lines (in other words, the
caller must strip the leading "+" or "-"); this was suggested by Junio on
the mailing list to allow for a future extension to "git show" to display
whitespace errors in blobs.

At the same time we teach it to report all classes of whitespace errors
found for a given line rather than reporting only the first found error.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13 23:43:58 -08:00
Junio C Hamano da31b358fb diff --check: minor fixups
There is no reason --exit-code and --check-diff must be mutually
exclusive, so assign different bits to different results and allow them
to be returned from the command.  Introduce diff_result_code() to factor
out the common code to decide final status code based on diffopt
settings and use it everywhere.

Update tests to match the above fix.

Turning pager off when "diff --check" is used is a regression.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13 23:40:27 -08:00
Wincent Colaiuta 62c64895cf "diff --check" should affect exit status
"git diff" has a --check option that can be used to check for whitespace
problems but it only reported by printing warnings to the
console.

Now when the --check option is used we give a non-zero exit status,
making "git diff --check" nicer to use in scripts and hooks.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-13 23:05:42 -08:00
Wincent Colaiuta 86f8c23685 Fix "diff --check" whitespace detection
"diff --check" would only detect spaces before tabs if a tab was the
last character in the leading indent. Fix that and add a test case to
make sure the bug doesn't regress in the future.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2007-12-12 11:24:33 -08:00
Junio C Hamano 5be60078c9 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>
2007-07-02 22:52:14 -07:00
Johannes Schindelin 5bd74506cd Get rid of the dependency to GNU diff in the tests
Now that "git diff" handles stdin and relative paths outside the
working tree correctly, we can convert all instances of "diff -u"
to "git diff".

This commit is really the result of

$ perl -pi.bak -e 's/diff -u/git diff/' $(git grep -l "diff -u" t/)

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

(cherry picked from commit c699a40d68215c7e44a5b26117a35c8a56fbd387)
2007-03-04 00:24:15 -08:00
Johannes Schindelin c7c24889bb diff -b: ignore whitespace at end of line
This is _not_ the same as "treat eol as whitespace", since that would mean
that multiple empty lines would be treated as equal to e.g. a space.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-12-04 16:30:54 -08:00
Junio C Hamano 4035b46e12 t4015: work-around here document problem on Cygwin.
Signed-off-by: Junio C Hamano <junio@twinsun.com>
2006-10-13 14:21:22 -07:00
Johannes Schindelin 2344d47fba diff: fix 2 whitespace issues
When whitespace or whitespace change was ignored, the function
xdl_recmatch() returned memcmp() style differences, which is wrong,
since it should return 0 on non-match.

Also, there were three horrible off-by-one bugs, even leading to wrong
hashes in the whitespace special handling.

The issue was noticed by Ray Lehtiniemi.

For good measure, this commit adds a test.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
2006-10-12 09:30:14 -07:00