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>
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>
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>
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>
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>
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>
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>
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>
"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>
"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>
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)
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>
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>
