* jc/1.7.0-diff-whitespace-only-status:
diff.c: fix typoes in comments
Make test case number unique
diff: Rename QUIET internal option to QUICK
diff: change semantics of "ignore whitespace" options
Conflicts:
diff.h
* maint:
Git 1.6.5.7
worktree: don't segfault with an absolute pathspec without a work tree
ignore unknown color configuration
help.autocorrect: do not run a command if the command given is junk
Illustrate "filter" attribute with an example
When parsing the config file, if there is a value that is
syntactically correct but unused, we generally ignore it.
This lets non-core porcelains store arbitrary information in
the config file, and it means that configuration files can
be shared between new and old versions of git (the old
versions might simply ignore certain configuration).
The one exception to this is color configuration; if we
encounter a color.{diff,branch,status}.$slot variable, we
die if it is not one of the recognized slots (presumably as
a safety valve for user misconfiguration). This behavior
has existed since 801235c (diff --color: use
$GIT_DIR/config, 2006-06-24), but hasn't yet caused a
problem. No porcelain has wanted to store extra colors, and
we once a color area (like color.diff) has been introduced,
we've never changed the set of color slots.
However, that changed recently with the addition of
color.diff.func. Now a user with color.diff.func in their
config can no longer freely switch between v1.6.6 and older
versions; the old versions will complain about the existence
of the variable.
This patch loosens the check to match the rest of
git-config; unknown color slots are simply ignored. This
doesn't fix this particular problem, as the older version
(without this patch) is the problem, but it at least
prevents it from happening again in the future.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Inspired by the coloring of quilt.
Introduce a separate color and paint the hunk comment part, i.e. the name
of the function, in a separate color "diff.func" (defaults to plain).
Whitespace between hunk header and hunk comment is printed in plain color.
Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When emit_line() is called with an empty line (but non-zero length, as we
send line terminating LF or CRLF to the function), it used to emit
<SET><RESET> followed by a newline. Stop the wastefulness.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change git-diff's whitespace-ignoring modes to generate
output only if a non-empty patch results, which git-apply
rejects.
Update the tests to look for the new behavior.
Signed-off-by: Greg Bacon <gbacon@dbresearch.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* js/maint-diff-color-words:
diff --color-words: bit of clean-up
diff --color-words -U0: fix the location of hunk headers
t4034-diff-words: add a test for word diff without context
Conflicts:
diff.c
* jc/maint-blank-at-eof:
diff -B: colour whitespace errors
diff.c: emit_add_line() takes only the rest of the line
diff.c: split emit_line() from the first char and the rest of the line
diff.c: shuffling code around
diff --whitespace: fix blank lines at end
core.whitespace: split trailing-space into blank-at-{eol,eof}
diff --color: color blank-at-eof
diff --whitespace=warn/error: fix blank-at-eof check
diff --whitespace=warn/error: obey blank-at-eof
diff.c: the builtin_diff() deals with only two-file comparison
apply --whitespace: warn blank but not necessarily empty lines at EOF
apply --whitespace=warn/error: diagnose blank at EOF
apply.c: split check_whitespace() into two
apply --whitespace=fix: detect new blank lines at eof correctly
apply --whitespace=fix: fix handling of blank lines at the eof
* js/maint-diff-color-words:
diff --color-words: bit of clean-up
diff --color-words -U0: fix the location of hunk headers
t4034-diff-words: add a test for word diff without context
Conflicts:
diff.c
When we introduced the "word diff" mode, we could have done one of three
things:
* change fn_out_consume() to "this is called every time a line worth of
diff becomes ready from the lower-level diff routine. This function
knows two sets of helpers (one for line-oriented diff, another for word
diff), and each set has various functions to be called at certain
places (e.g. hunk header, context, ...). The function's role is to
inspect the incoming line, and dispatch appropriate helpers to produce
either line- or word- oriented diff output."
* introduce fn_out_consume_word_diff() that is "this is called every time
a line worth of diff becomes ready from the lower-level diff routine,
and here is what we do to prepare word oriented diff using that line."
without touching fn_out_consume() at all.
* Do neither of the above, and keep fn_out_consume() to "this is called
every time a line worth of diff becomes ready from the lower-level diff
routine, and here is what we do to output line oriented diff using that
line." but sprinkle a handful of 'are we in word-diff mode? if so do
this totally different thing' at random places.
This patch is to at least abstract the details of "this totally different
thing" out from the main codepath, in order to improve readability.
We can later refactor it by introducing fn_out_consume_word_diff(), taking
the second route above, but that is a separate topic.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Colored word diff without context lines firstly printed all the hunk
headers among each other and then printed the diff.
This was due to the code relying on getting at least one context line at
the end of each hunk, where the colored words would be flushed (it is
done that way to be able to ignore rewrapped lines).
Noticed by Markus Heidelberg.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When you use the option --submodule=log you can see the submodule
summaries inlined in the diff, instead of not-quite-helpful SHA-1 pairs.
The format imitates what "git submodule summary" shows.
To do that, <path>/.git/objects/ is added to the alternate object
databases (if that directory exists).
This option was requested by Jens Lehmann at the GitTogether in Berlin.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/maint-blank-at-eof:
diff -B: colour whitespace errors
diff.c: emit_add_line() takes only the rest of the line
diff.c: split emit_line() from the first char and the rest of the line
diff.c: shuffling code around
diff --whitespace: fix blank lines at end
core.whitespace: split trailing-space into blank-at-{eol,eof}
diff --color: color blank-at-eof
diff --whitespace=warn/error: fix blank-at-eof check
diff --whitespace=warn/error: obey blank-at-eof
diff.c: the builtin_diff() deals with only two-file comparison
apply --whitespace: warn blank but not necessarily empty lines at EOF
apply --whitespace=warn/error: diagnose blank at EOF
apply.c: split check_whitespace() into two
apply --whitespace=fix: detect new blank lines at eof correctly
apply --whitespace=fix: fix handling of blank lines at the eof
Essentially; s/type* /type */ as per the coding guidelines.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* 'jc/maint-1.6.0-blank-at-eof' (early part):
diff.c: emit_add_line() takes only the rest of the line
diff.c: split emit_line() from the first char and the rest of the line
* 'jc/maint-1.6.0-blank-at-eof' (early part):
diff --whitespace: fix blank lines at end
core.whitespace: split trailing-space into blank-at-{eol,eof}
diff --color: color blank-at-eof
diff --whitespace=warn/error: fix blank-at-eof check
diff --whitespace=warn/error: obey blank-at-eof
diff.c: the builtin_diff() deals with only two-file comparison
apply --whitespace: warn blank but not necessarily empty lines at EOF
apply --whitespace=warn/error: diagnose blank at EOF
apply.c: split check_whitespace() into two
apply --whitespace=fix: detect new blank lines at eof correctly
apply --whitespace=fix: fix handling of blank lines at the eof
We used to send the old and new contents more or less straight out to the
output with only the original "old is red, new is green" colouring. Now
all the necessary support routines have been prepared, call them with a
line of data at a time from the output code and have them check and color
whitespace errors in exactly the same way as they are called from the low
level diff callback routines.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
As the first character on the line that is fed to this function is always
"+", it is pointless to send that along with the rest of the line.
This change will make it easier to reuse the logic when emitting the
rewrite diff, as we do not want to copy a line only to add "+"/"-"/" "
immediately before its first character when we produce rewrite diff
output.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
A new helper function emit_line_0() takes the first line of diff output
(typically "-", " ", or "+") separately from the remainder of the line.
No other functional changes.
This change will make it easier to reuse the logic when emitting the
rewrite diff, as we do not want to copy a line only to add "+"/"-"/" "
immediately before its first character when we produce rewrite diff
output.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Move function, type, and structure definitions for fill_mmfile(),
count_trailing_blank(), check_blank_at_eof(), emit_line(),
new_blank_line_at_eof(), emit_add_line(), sane_truncate_fn, and
emit_callback up in the file, so that they can be refactored into helper
functions and reused by codepath for emitting rewrite patches.
This only moves the lines around to make the next two patches easier to
read.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The earlier logic tried to colour any and all blank lines that were added
beyond the last blank line in the original, but this was very wrong. If
you added 96 blank lines, a non-blank line, and then 3 blank lines at the
end, only the last 3 lines should trigger the error, not the earlier 96
blank lines.
We need to also make sure that the lines are after the last non-blank line
in the postimage as well before deciding to paint them.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since the coloring logic processed the patch output one line at a time, we
couldn't easily color code the new blank lines at the end of file.
Reuse the adds_blank_at_eof() function to find where the runs of such
blank lines start, keep track of the line number in the preimage while
processing the patch output one line at a time, and paint the new blank
lines that appear after that line to implement this.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "diff --check" logic used to share the same issue as the one fixed for
"git apply" earlier in this series, in that a patch that adds new blank
lines at end could appear as
@@ -l,5 +m,7 @@$
_context$
_context$
-deleted$
+$
+$
+$
_$
_$
where _ stands for SP and $ shows a end-of-line. Instead of looking at
each line in the patch in the callback, simply count the blank lines from
the end in two versions, and notice the presence of new ones.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "diff --check" code used to conflate trailing-space whitespace error
class with this, but now we have a proper separate error class, we should
check it under blank-at-eof, not trailing-space.
The whitespace error is not about _having_ blank lines at end, but about
adding _new_ blank lines. To keep the message consistent with what is
given by "git apply", call whitespace_error_string() to generate it,
instead of using a hardcoded custom message.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The combined diff is implemented in combine_diff() and fn_out_consume()
codepath never has to deal with anything but two-file comparision.
Drop nparents from the emit_callback structure and simplify the code.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The majority of code in core git appears to use a single
space after if/for/while. This is an attempt to bring more
code to this standard. These are entirely cosmetic changes.
Signed-off-by: Brian Gianforcaro <b.gianfo@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The option "QUIET" primarily meant "find if we have _any_ difference as
quick as possible and report", which means we often do not even have to
look at blobs if we know the trees are different by looking at the higher
level (e.g. "diff-tree A B"). As a side effect, because there is no point
showing one change that we happened to have found first, it also enables
NO_OUTPUT and EXIT_WITH_STATUS options, making the end result look quiet.
Rename the internal option to QUICK to reflect this better; it also makes
grepping the source tree much easier, as there are other kinds of QUIET
option everywhere.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Traditionally, the --ignore-whitespace* options have merely meant to tell
the diff output routine that some class of differences are not worth
showing in the textual diff output, so that the end user has easier time
to review the remaining (presumably more meaningful) changes. These
options never affected the outcome of the command, given as the exit
status when the --exit-code option was in effect (either directly or
indirectly).
When you have only whitespace changes, however, you might expect
git diff -b --exit-code
to report that there is _no_ change with zero exit status.
Change the semantics of --ignore-whitespace* options to mean more than
"omit showing the difference in text".
The exit status, when --exit-code is in effect, is computed by checking if
we found any differences at the path level, while diff frontends feed
filepairs to the diffcore engine. When "ignore whitespace" options are in
effect, we defer this determination until the very end of diffcore
transformation. We simply do not know until the textual diff is
generated, which comes very late in the pipeline.
When --quiet is in effect, various diff frontends optimize by breaking out
early from the loop that enumerates the filepairs, when we find the first
path level difference; when --ignore-whitespace* is used the above change
automatically disables this optimization.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* rs/grep-p:
grep: simplify -p output
grep -p: support user defined regular expressions
grep: add option -p/--show-function
grep: handle pre context lines on demand
grep: print context hunk marks between files
grep: move context hunk mark handling into show_line()
userdiff: add xdiff_clear_find_func()
* tr/die_errno:
Use die_errno() instead of die() when checking syscalls
Convert existing die(..., strerror(errno)) to die_errno()
die_errno(): double % in strerror() output just in case
Introduce die_errno() that appends strerror(errno) to die()
xdiff_set_find_func() is used to set user defined regular expressions
for finding function signatures. Add xdiff_clear_find_func(), which
frees the memory allocated by the former, making the API complete.
Also, use the new function in diff.c (the only call site of
xdiff_set_find_func()) to clean up after ourselves.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Lots of die() calls did not actually report the kind of error, which
can leave the user confused as to the real problem. Use die_errno()
where we check a system/library call that sets errno on failure, or
one of the following that wrap such calls:
Function Passes on error from
-------- --------------------
odb_pack_keep open
read_ancestry fopen
read_in_full xread
strbuf_read xread
strbuf_read_file open or strbuf_read_file
strbuf_readlink readlink
write_in_full xwrite
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change calls to die(..., strerror(errno)) to use the new die_errno().
In the process, also make slight style adjustments: at least state
_something_ about the function that failed (instead of just printing
the pathname), and put paths in single quotes.
Signed-off-by: Thomas Rast <trast@student.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* maint:
diff.c: plug a memory leak in an error path
fetch-pack: close output channel after sideband demultiplexer terminates
builtin-remote: Make "remote show" display all urls
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>
* ar/unlink-err:
print unlink(2) errno in copy_or_link_directory
replace direct calls to unlink(2) with unlink_or_warn
Introduce an unlink(2) wrapper which gives warning if unlink failed
This particular readlink call never NUL-terminated its
result, making it a potential source of bugs (though there
is no bug now, as it currently always respects the length
field). Let's just switch it to strbuf_readlink which is
shorter and less error-prone.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* ar/unlink-err:
print unlink(2) errno in copy_or_link_directory
replace direct calls to unlink(2) with unlink_or_warn
Introduce an unlink(2) wrapper which gives warning if unlink failed
Essentially; s/type* /type */ as per the coding guidelines.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This helps to notice when something's going wrong, especially on
systems which lock open files.
I used the following criteria when selecting the code for replacement:
- it was already printing a warning for the unlink failures
- it is in a function which already printing something or is
called from such a function
- it is in a static function, returning void and the function is only
called from a builtin main function (cmd_)
- it is in a function which handles emergency exit (signal handlers)
- it is in a function which is obvously cleaning up the lockfiles
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The diffstat used the color.diff.plain slot (context text) for coloring
filenames and the whole summary line. This didn't look nice and the
affected text isn't patch context at all.
Signed-off-by: Markus Heidelberg <markus.heidelberg@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
I told people on the kernel mailing list to please use "-M" when sending
me rename patches, so that I can see what they do while reading email
rather than having to apply the patch and then look at the end result.
I also told them that if they want to make it the default, they can just
add
[diff]
renames
to their ~/.gitconfig file. And while I was thinking about that, I wanted
to also check whether you can then mark individual projects to _not_ have
that default in the per-repository .git/config file.
And you can't. Currently you cannot have a global "enable renames by
default" and then a local ".. but not for _this_ project". Why? Because if
somebody writes
[diff]
renames = no
we simply ignore it, rather than resetting "diff_detect_rename_default"
back to zero.
Fixed thusly.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
