The combined diff format for merges will only list one filename, even if
rename or copy detection is active. For example, with raw format one
might see:
::100644 100644 100644 fabadb8cc95eb04866510 MM describe.c
::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM bar.sh
::100644 100644 100644 e07d6c5 9042e82 ee91881 RR phooey.c
This doesn't let us know what the original name of bar.sh was in the
first parent, and doesn't let us know what either of the original names
of phooey.c were in either of the parents. In contrast, for non-merge
commits, raw format does provide original filenames (and a rename score
to boot). In order to also provide original filenames for merge
commits, add a --combined-all-paths option (which must be used with
either -c or --cc, and is likely only useful with rename or copy
detection active) so that we can print tab-separated filenames when
renames are involved. This transforms the above output to:
::100644 100644 100644 fabadb8cc95eb04866510 MM desc.c desc.c desc.c
::100755 100755 100755 52b7a2d 6d1ac04 d2ac7d7 RM foo.sh bar.sh bar.sh
::100644 100644 100644 e07d6c5 9042e82 ee91881 RR fooey.c fuey.c phooey.c
Further, in patch format, this changes the from/to headers so that
instead of just having one "from" header, we get one for each parent.
For example, instead of having
--- a/phooey.c
+++ b/phooey.c
we would see
--- a/fooey.c
--- a/fuey.c
+++ b/phooey.c
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Since 7cb6ac1e4b ("diff: diff_aligned_abbrev: remove ellipsis after
abbreviated SHA-1 value", 2017-12-03), the "--raw" format of diff
does not add ellipses in an attempt to align the output, but the
documentation was not updated to reflect this.
Signed-off-by: Greg Hurrell <greg@hurrell.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Linking the description for pathname quoting to the configuration
variable "core.quotePath" removes inconstistent and incomplete
sections while also giving two hints how to deal with it: Either with
"-c core.quotePath=false" or with "-z".
Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Similarly to the previous commit, use backquotes instead of
forward-quotes, for long options.
This was obtained with:
perl -pi -e "s/'(--[a-z][a-z=<>-]*)'/\`\$1\`/g" *.txt
and manual tweak to remove false positive in ascii-art (o'--o'--o' to
describe rewritten history).
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It was common in our documentation to surround short option names with
forward quotes, which renders as italic in HTML. Instead, use backquotes
which renders as monospace. This is one more step toward conformance to
Documentation/CodingGuidelines.
This was obtained with:
perl -pi -e "s/'(-[a-z])'/\`\$1\`/g" *.txt
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
b6d8f309 (diff-raw format update take #2., 2005-05-23) started
documenting the diff format, and it said
...
(8) sha1 for "dst"; 0{40} if creation, unmerged or "look at work tree".
(9) status, followed by similarlity index number only for C and R.
(10) a tab or a NUL when '-z' option is used.
...
because C and R _were_ the only ones that came with a number back
then. This was corrected by ddafa7e9 (diff-helper: Fix R/C score
parsing under -z flag., 2005-05-29) and we started saying "score"
instead of "similarlity index" (because we can have other kind of
score there), and stopped saying "only for C and R" (because Git is
an ever evolving system). Later f345b0a0 (Add -B flag to diff-*
brothers., 2005-05-30) introduced a new concept, "dissimilarity"
score; it did not have to fix any documentation.
The current text that says only C and R can have scores came
independently from a5a323f3 (Add reference for status letters in
documentation., 2008-11-02) and it was wrong from the day one.
Noticed-by: Mike Hommey
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This includes mentioning the initial hash output of diff-tree, and
changes the header to "raw output format" which is more descriptive.
Signed-off-by: David Kågedal <davidk@lysator.liu.se>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Also fix error in diff_filepair::status documentation, and point to
the in-code reference as well as the doc.
Signed-off-by: Yann Dirson <ydirson@altern.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The "-z" format is all about machine parsability, but showing renamed
paths as "common/{a => b}/suffix" makes it impossible. The scripts would
never have successfully parsed "--numstat -z -M" in the old format.
This fixes the output format in a (hopefully minimally) backward
incompatible way.
* The output without -z is not changed. This has given a good way for
humans to view added and deleted lines separately, and showing the
path in combined, shorter way would preserve readability.
* The output with -z is unchanged for paths that do not involve renames.
Existing scripts that do not pass -M/-C are not affected at all.
* The output with -z for a renamed path is shown in a format that can
easily be distinguished from an unrenamed path.
This is based on Jakub Narebski's patch. Bugs and documentation typos
are mine.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-diff.txt includes diff-options.txt which for the -p option refers
to a section "generating patches.." which is missing from the git-diff
documentation. This patch adapts diff-format.txt to additionally
mention the git-diff program, and includes diff-format.txt into
git-diff.txt.
Tino Keitel noticed this problem.
Signed-off-by: Gerrit Pape <pape@smarden.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Rounding down the printed (dis)similarity index allows us to use
"100%" as a special value that indicates complete rewrites and
fully equal file contents, respectively.
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time. There are a few files that need
to have trailing whitespaces (most notably, test vectors). The results
still passes the test, and build result in Documentation/ area is unchanged.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add description of raw combined diff format to diff-formats.txt,
as "diff format for merges" section, before "Generating patches..."
section.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Git no longer calls an external diff program to generate patches.
Remove the documentation which suggests that you can pass
arbitrary diff options via the GIT_DIFF_OPTS environment variable.
Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca>
Signed-off-by: Junio C Hamano <junkio@cox.net>
"new file" and "deleted file" were already reported in the
original code, but the logic was not as transparent as it could
have. This uses a few variables and more comments to clarify
the flow. The rule is: (1) if a path exists in the merge result
when no parent had it, we report "new" (otherwise it came from
the parents, as opposed to have added by the evil merge). (2) if
the path does not exist in the merge result, it is "deleted".
Since we can say "new" and "deleted", there is no reason not to
follow the /dev/null convention. This fixes it.
Appending function name after @@@ ... @@@ is trivial, so
implement it.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Update example combined diff format to the current version
$ git diff-tree -p -c fec9ebf16c
and provide complete first chunk in example.
Document combined diff format headers: how "diff header" look like,
which of "extended diff headers" are used with combined diff and how
they look like, differences in two-line from-file/to-file header from
non-combined diff format, chunk header format.
It should be noted that combined diff format was designed for quick
_content_ inspection and renames would work correctly to pick which
blobs from each tree to compare but otherwise not reflected in the
output (the pathnames are not shown).
[jc: with minimum copyediting]
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch makes the documentation refer to the index
as index instead of cache, but some references still
remain. (e.g. git-update-index.txt)
Signed-off-by: Lukas Sandström <lukass@etek.chalmers.se>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The textual diff generation with built-in '-p' in diff-* brothers has
proven to be useful enough that git-diff-helper outlived its usefulness.
Signed-off-by: Junio C Hamano <junkio@cox.net>
As promised, this is the "big tool rename" patch. The primary differences
since 0.99.6 are:
(1) git-*-script are no more. The commands installed do not
have any such suffix so users do not have to remember if
something is implemented as a shell script or not.
(2) Many command names with 'cache' in them are renamed with
'index' if that is what they mean.
There are backward compatibility symblic links so that you and
Porcelains can keep using the old names, but the backward
compatibility support is expected to be removed in the near
future.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Mostly making the formatted html prettier.
Signed-off-by: Junio C Hamano <junkio@cox.net>
(cherry picked from 7adf1f15ebe074d4767df941817a6cf86d8e2533 commit)
[jc: Johannes spent time and effort to see how consistent our
use of terminilogy is, and as a byproduct made these corrections
not related to the terminology unification. I really appreciate
it.]
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Add missing "space" element to the description of the diff-format.
Signed-off-by: Christian Meder <chris@absolutegiganten.org>
Acked-by: Petr Baudis <pasky@ucw.cz>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The documentation failed to describe "diff --git" extended diff
headers, so add some.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The score number that follow R/C status were parsed but the
parse pointer was not updated, causing the entire line to become
unrecognized. This patch fixes this problem.
There was a test missing to catch this breakage, which this
commit adds as t4009-diff-rename-4.sh. The diff-raw tests used
in related t4005-diff-rename-2.sh (the same test without -z) and
t4007-rename-3.sh were stricter than necessarily, despite that
the comment for the tests said otherwise. This patch also
corrects them.
The documentation is updated to say that the status can
optionally be followed by a number called "score"; it does not
have to stay similarity index forever and there is no reason to
limit it only to C and R.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This changes the diff-raw format again, following the mailing
list discussion. The new format explicitly expresses which one
is a rename and which one is a copy.
The documentation and tests are updated to match this change.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Update the diff-raw format as Linus and I discussed, except that
it does not use sequence of underscore '_' letters to express
nonexistence. All '0' mode is used for that purpose instead.
The new diff-raw format can express rename/copy, and the earlier
restriction that -M and -C _must_ be used with the patch format
output is no longer necessary. The patch makes -M and -C flags
independent of -p flag, so you need to say git-whatchanged -M -p
to get the diff/patch format.
Updated are both documentations and tests.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
It used to be that diff-tree needed helper support to parse its
raw output to generate diffs, but these days git-diff-* family
produces the same output and the helper is not tied to diff-tree
anymore. Drop "tree" from its name.
This commit is done separately to record just the rename and no
file content changes. The changes in the renamed files are recorded
in the next commit.
Signed-off-by: Junio C Hamano <junkio@cox.net>
Bundled with the changes in the unrenamed files.
Signed-off-by: Petr Baudis <pasky@ucw.cz>
Reformat core-git.txt to asciidoc format.
Includes split-docs.pl to create individual txt, html and man pages.
<JC> Editorial note. I've updated to add git-diff-cache -m and
git-update-cache --replace description on top of the version
David posted to the GIT list and got his OK.
Signed-off-by: David Greaves <david@dgreaves.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
