The reflog walking logic (git log -g) replaces the true parent list
with the preceding commit in the reflog. This results in bogus commit
diffs when combined with options such as -p; the diff is against the
reflog predecessor, not the parent of the commit.
Save the true parents on the side, extending the functions from the
previous commit. The diff logic picks them up and uses them to show
the correct diffs.
We do have to be somewhat careful about repeated calling of
save_parents(), since the reflog may list a commit more than once. We
now store (commit_list*)-1 to distinguish the "not saved yet" and
"root commit" cases. This lets us preserve an empty parent list even
if save_parents() is repeatedly called.
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When using pathspec filtering in combination with diff-based log
output, parent simplification happens before the diff is computed.
The diff is therefore against the *simplified* parents.
This works okay, arguably by accident, in the normal case:
simplification reduces to one parent as long as the commit is TREESAME
to it. So the simplified parent of any given commit must have the
same tree contents on the filtered paths as its true (unfiltered)
parent.
However, --full-diff breaks this guarantee, and indeed gives pretty
spectacular results when comparing the output of
git log --graph --stat ...
git log --graph --full-diff --stat ...
(--graph internally kicks in parent simplification, much like
--parents).
To fix it, store a copy of the parent list before simplification (in a
slab) whenever --full-diff is in effect. Then use the stored parents
instead of the simplified ones in the commit display code paths. The
latter do not actually check for --full-diff to avoid duplicated code;
they just grab the original parents if save_parents() has not been
called for this revision walk.
For ordinary commits it should be obvious that this is the right thing
to do.
Merge commits are a bit subtle. Observe that with default
simplification, merge simplification is an all-or-nothing decision:
either the merge is TREESAME to one parent and disappears, or it is
different from all parents and the parent list remains intact.
Redundant parents are not pruned, so the existing code also shows them
as a merge.
So if we do show a merge commit, the parent list just consists of the
rewrite result on each parent. Running, e.g., --cc on this in
--full-diff mode is not very useful: if any commits were skipped, some
hunks will disagree with all sides of the merge (with one side,
because commits were skipped; with the others, because they didn't
have those changes in the first place). This triggers --cc showing
these hunks spuriously.
Therefore I believe that even for merge commits it is better to show
the diffs wrt. the original parents.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Thomas Rast <trast@inf.ethz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Corrects the longstanding sloppiness in the implementation of
name-rev that conflated "we take commit-ish" and "differences
between tags and commits do not matter".
* jc/name-rev-exact-ref:
describe: fix --contains when a tag is given as input
name-rev: differentiate between tags and commits they point at
describe: use argv-array
name-rev: allow converting the exact object name at the tip of a ref
name-ref: factor out name shortening logic from name_ref()
Newer Net::SMTP::SSL module does not want the user programs to use
the default behaviour to let server certificate go without
verification, so by default enable the verification with a
mechanism to turn it off if needed.
* rr/send-email-ssl-verify:
send-email: be explicit with SSL certificate verification
A new command to allow scripts to query the mailmap information.
* es/check-mailmap:
t4203: test check-mailmap command invocation
builtin: add git-check-mailmap command
Add "interactive" mode to "git clean".
The early part to refactor relative path related helper functions
looked sensible.
* jx/clean-interactive:
test: run testcases with POSIX absolute paths on Windows
test: add t7301 for git-clean--interactive
git-clean: add documentation for interactive git-clean
git-clean: add ask each interactive action
git-clean: add select by numbers interactive action
git-clean: add filter by pattern interactive action
git-clean: use a git-add-interactive compatible UI
git-clean: add colors to interactive git-clean
git-clean: show items of del_list in columns
git-clean: add support for -i/--interactive
git-clean: refactor git-clean into two phases
write_name{_quoted_relative,}(): remove redundant parameters
quote_path_relative(): remove redundant parameter
quote.c: substitute path_relative with relative_path
path.c: refactor relative_path(), not only strip prefix
test: add test cases for relative_path
Allow configuration data to be read from in-tree blob objects,
which would help working in a bare repository and submodule
updates.
* hv/config-from-blob:
do not die when error in config parsing of buf occurs
teach config --blob option to parse config from database
config: make parsing stack struct independent from actual data source
config: drop cf validity check in get_next_char()
config: factor out config file stack management
Use the function attributes extension to catch mistakes in use of
our own variadic functions that use NULL sentinel at the end
(i.e. like execl(3)) and format strings (i.e. like printf(3)).
* jk/gcc-function-attributes:
Add the LAST_ARG_MUST_BE_NULL macro
wt-status: use "format" function attribute for status_printf
use "sentinel" function attribute for variadic lists
add missing "format" function attributes
The "--head" option to "git show-ref" was only to add "HEAD" to the
list of candidate refs to be filtered by the usual rules
(e.g. "--heads" that only show refs under refs/heads). Change the
meaning of the option to always show "HEAD" regardless of what
filtering will be applied to any other ref (this is a backward
incompatible change, so I may need to add an entry to the Release
Notes).
* db/show-ref-head:
show-ref: make --head always show the HEAD ref
The refactoring made for parsing "-L" option recently to support
"git log -L" seems to have broken "git blame -L X,-5" to show 5
lines leading to X.
* es/blame-L-breakage:
blame-options.txt: explain that -L <start> and <end> are optional
blame-options.txt: place each -L option variation on its own line
t8001/t8002 (blame): add blame -L :funcname tests
t8001/t8002 (blame): add blame -L tests
t8001/t8002 (blame): modernize style
line-range: fix "blame -L X,-N" regression
When "git" is spawned in such a way that any of the low 3 file
descriptors is closed, our first open() may yield file descriptor 2,
and writing error message to it would screw things up in a big way.
* tr/protect-low-3-fds:
git: ensure 0/1/2 are open in main()
daemon/shell: refactor redirection of 0/1/2 from /dev/null
"git show -s" was less discoverable than it should be.
* mm/diff-no-patch-synonym-to-s:
Documentation/git-log.txt: capitalize section names
Documentation: move description of -s, --no-patch to diff-options.txt
Documentation/git-show.txt: include common diff options, like git-log.txt
diff: allow --patch & cie to override -s/--no-patch
diff: allow --no-patch as synonym for -s
t4000-diff-format.sh: modernize style
The mailmap mechanism unnecessarily downcased the e-mail addresses
in the output, and also ignored the human name when it is a single
character name.
This now has become Eric Sunshine's series, even though it still is
under jc/ hierarchy.
* jc/mailmap-case-insensitivity:
mailmap: style fixes
mailmap: debug: avoid passing NULL to fprintf() '%s' conversion specification
mailmap: debug: eliminate -Wformat field precision type warning
mailmap: debug: fix malformed fprintf() format conversion specification
mailmap: debug: fix out-of-order fprintf() arguments
mailmap: do not downcase mailmap entries
t4203: demonstrate loss of uppercase characters in canonical email
mailmap: do not lose single-letter names
t4203: demonstrate loss of single-character name in mailmap entry
Two places we did not check return value (expected to be a file
descriptor) correctly.
* tr/fd-gotcha-fixes:
run-command: dup_devnull(): guard against syscalls failing
git_mkstemps: correctly test return value of open()
A finishing touch to fix breakage to "add -e" caused by defaulting
ui.color to "auto".
* mm/color-auto-default:
git add -e: Explicitly specify that patch should have no color
This detected a mismerge of one of "add-2.0" topics to the 'jch'
and 'pu' branches.
* jc/simple-add-must-be-a-no-op:
t2202: make sure "git add" (no args) stays a no-op
The name marc.theaimsgroup.com is no longer active, and has
migrated to marc.info.
Signed-off-by: Ondřej Bílka <neleai@seznam.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Avoid failing "git diff" when core.safecrlf is set to true, because
the user cannot tell where the breakage is in preparation for fixing
and committing.
* jc/maint-diff-core-safecrlf:
diff: demote core.safecrlf=true to core.safecrlf=warn
This test confirms that a file can be ignored during git p4 sync if if is
excluded in P4 client specification.
Signed-off-by: Vitor Antunes <vitor.hda@gmail.com>
Acked-by: Pete Wyckoff <pw@padd.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
After 4c7f1819 (make color.ui default to 'auto', 2013-06-10), the
patch file to be edited during 'git add -e' receives all the color
codes. This is because diffopt.use_color defaults to -1, which
causes want_color to now return 'auto'.
By explicitly setting use_color to 0, we can ensure the diff output
has no color codes in it.
Signed-off-by: Andrew Wong <andrew.kw.w@gmail.com>
Acked-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The variable len is set to
len = strchrnul(line, '\n') - line;
unconditionally 9 lines later, hence we can remove the call to strlen.
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
That pointer will be assigned to new memory via
request = xmalloc(sizeof(*request));
20 lines later unconditionally anyway, so it's safe to not assign it
to an arbitrary variable.
Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
