"git replace" learns a new "--edit" option.
* cc/replace-edit:
Documentation: replace: describe new --edit option
replace: add --edit to usage string
replace: add tests for --edit
replace: die early if replace ref already exists
replace: refactor checking ref validity
replace: make sure --edit results in a different object
replace: add --edit option
replace: factor object resolution out of replace_object
replace: use OPT_CMDMODE to handle modes
replace: refactor command-mode determination
* 'mt/patch-id-stable' (early part):
patch-id-test: test stable and unstable behaviour
patch-id: make it stable against hunk reordering
test doc: test_write_lines does not split its arguments
test: add test_write_lines helper
Patch id changes if users reorder file diffs that make up a patch.
As the result is functionally equivalent, a different patch id is
surprising to many users.
In particular, reordering files using diff -O is helpful to make patches
more readable (e.g. API header diff before implementation diff).
Add an option to change patch-id behaviour making it stable against
these kinds of patch change:
calculate SHA1 hash for each hunk separately and sum all hashes
(using a symmetrical sum) to get patch id
We use a 20byte sum and not xor - since xor would give 0 output
for patches that have two identical diffs, which isn't all that
unlikely (e.g. append the same line in two places).
The new behaviour is enabled
- when patchid.stable is true
- when --stable flag is present
Using a new flag --unstable or setting patchid.stable to false force
the historical behaviour.
In the documentation, clarify that patch ID can now be a sum of hashes,
not a hash.
Document how command line and config options affect the
behaviour.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Avoid running over the end of header string while parsing an
incoming e-mail message to extract the patch.
* rs/mailinfo-header-cmp:
mailinfo: use strcmp() for string comparison
"update-index --cacheinfo" in 2.0 crashes on a malformed command line.
* jc/rev-parse-argh-dashed-multi-words:
update-index: fix segfault with missing --cacheinfo argument
If a file contained CRLF line endings in a repository with
core.autocrlf=input, then blame always marked lines as "Not
Committed Yet", even if they were unmodified.
* bc/blame-crlf-test:
blame: correctly handle files regardless of autocrlf
"git blame" has been optimized greatly by reorganising the data
structure that is used to keep track of the work to be done, thanks
to David Karstrup <dak@gnu.org>.
* dk/blame-reorg:
blame: large-scale performance rewrite
On a case insensitive filesystem, merge-recursive incorrectly
deleted the file that is to be renamed to a name that is the same
except for case differences.
* dt/merge-recursive-case-insensitive:
mv: allow renaming to fix case on case insensitive filesystems
merge-recursive.c: fix case-changing merge bug
"git commit --allow-empty-message -C $commit" did not work when the
commit did not have any log message.
* jk/commit-C-pick-empty:
commit: do not complain of empty messages from -C
Running "git update-index --cacheinfo" without any further
arguments results in a segfault rather than an error
message. Commit ec160ae (update-index: teach --cacheinfo a
new syntax "mode,sha1,path", 2014-03-23) added code to
examine the format of the argument, but forgot to handle the
NULL case.
Returning an error from the parser is enough, since we then
treat it as an old-style "--cacheinfo <mode> <sha1> <path>",
and complain that we have less than 3 arguments to read.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jk/commit-date-approxidate:
commit: accept more date formats for "--date"
commit: print "Date" line when the user has set date
pretty: make show_ident_date public
commit: use split_ident_line to compare author/committer
"git blame" miscounted number of columns needed to show localized
timestamps, resulting in jaggy left-side-edge of the source code
lines in its output.
* jx/blame-align-relative-time:
blame: dynamic blame_date_width for different locales
blame: fix broken time_buf paddings in relative timestamp
"git merge" without argument, even when there is an upstream
defined for the current branch, refused to run until
merge.defaultToUpstream is set to true. Flip the default of that
configuration variable to true.
* fc/merge-default-to-upstream:
merge: enable defaulttoupstream by default
* rs/ref-update-check-errors-early:
commit.c: check for lock error and return early
sequencer.c: check for lock failure and bail early in fast_forward_to
Enable threaded index-pack on platforms without thread-unsafe
pread() emulation.
* nd/index-pack-one-fd-per-thread:
index-pack: work around thread-unsafe pread()
Read-only operations such as "git status" that internally refreshes
the index write out the refreshed index to the disk to optimize
future accesses to the working tree, but this could race with a
"read-write" operation that modify the index while it is running.
Detect such a race and avoid overwriting the index.
Duy raised a good point that we may need to do the same for the
normal writeout codepath, not just the "opportunistic" update
codepath. While that is true, nobody sane would be running two
simultaneous operations that are clearly write-oriented competing
with each other against the same index file. So in that sense that
can be done as a less urgent follow-up for this topic.
* ym/fix-opportunistic-index-update-race:
read-cache.c: verify index file before we opportunistically update it
wrapper.c: add xpread() similar to xread()
Update "update-ref --stdin [-z]" and then introduce a transactional
support for (multi-)reference updates.
* mh/ref-transaction: (27 commits)
ref_transaction_commit(): work with transaction->updates in place
struct ref_update: add a type field
struct ref_update: add a lock field
ref_transaction_commit(): simplify code using temporary variables
struct ref_update: store refname as a FLEX_ARRAY
struct ref_update: rename field "ref_name" to "refname"
refs: remove API function update_refs()
update-ref --stdin: reimplement using reference transactions
refs: add a concept of a reference transaction
update-ref --stdin: harmonize error messages
update-ref --stdin: improve the error message for unexpected EOF
t1400: test one mistake at a time
update-ref --stdin -z: deprecate interpreting the empty string as zeros
update-ref.c: extract a new function, parse_next_sha1()
t1400: test that stdin -z update treats empty <newvalue> as zeros
update-ref --stdin: simplify error messages for missing oldvalues
update-ref --stdin: make error messages more consistent
update-ref --stdin: improve error messages for invalid values
update-ref.c: extract a new function, parse_refname()
parse_cmd_verify(): copy old_sha1 instead of evaluating <oldvalue> twice
...
"--ignore-space-change" option of "git apply" ignored the
spaces at the beginning of line too aggressively, which is
inconsistent with the option of the same name "diff" and "git diff"
have.
* jc/apply-ignore-whitespace:
apply --ignore-space-change: lines with and without leading whitespaces do not match
The array header is defined as:
static const char *header[MAX_HDR_PARSED] = {
"From","Subject","Date",
};
When looking for the index of a specfic string in that array, simply
use strcmp() instead of memcmp(). This avoids running over the end of
the string (e.g. with memcmp("Subject", "From", 7)) and gets rid of
magic string length constants.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
We have two implementations of the same function; let's drop
that to one. We take the name from daemon.c, but the
implementation (which is just slightly more efficient) from
the config code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Because of the way "--follow" is implemented, we must have
exactly one pathspec. "git log" enforces this restriction,
but other users of the revision traversal code do not. For
example, "git format-patch --follow" will segfault during
try_to_follow_renames, as we have no pathspecs at all.
We can push this check down into diff_setup_done, which is
probably a better place anyway. It is the diff code that
introduces this restriction, so other parts of the code
should not need to care themselves.
Reported-by: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a replace ref already exists for an object, it is
much better for the user if we error out before we
let the user edit the object, rather than after.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will be useful in a following commit when we will
want to check if the ref already exists before we let the
user edit an object.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It's a bad idea to create a replace ref for an object
that points to the original object itself.
That's why we have to check if the result from editing
the original object is a different object and error out
if it isn't.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When core.commentChar is "auto", the comment char starts with '#' as
in default but if it's already in the prepared message, find another
char in a small subset. This should stop surprises because git strips
some lines unexpectedly.
Note that git is not smart enough to recognize '#' as the comment char
in custom templates and convert it if the final comment char is
different. It thinks '#' lines in custom templates as part of the
commit message. So don't use this with custom templates.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When <command> happens to be the magic string "less", today
git grep -O<command> -e<pattern>
helpfully passes +/<pattern> to less so you can navigate through
the results within a file using the n and shift+n keystrokes.
Alas, that doesn't do the right thing for a case-insensitive match,
i.e.
git grep -i -O<command> -e<pattern>
For that case we should pass --IGNORE-CASE to "less" so that n and
shift+n can move between results ignoring case in the pattern.
The original patch came from msysgit and used "-i", but that was not
due to lack of support for "-I" but it merely overlooked that it
ought to work even when the pattern contains capital letters.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Stepan Kasal <kasal@ucw.cz>
Helped-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we fetch a pack that does not contain an object we
expected to receive, we get an error like:
$ git init --bare tmp.git && cd tmp.git
$ git fetch ../parent.git
[...]
error: Could not read 964953ec7bcc0245cb1d0db4095455edd21a2f2e
fatal: Failed to traverse parents of commit b8247b40caf6704fe52736cdece6d6aae87471aa
error: ../parent.git did not send all necessary objects
This comes from the check_everything_connected rev-list. If
we try cloning the same repo (rather than a fetch), we end
up using index-pack's --check-self-contained-and-connected
option instead, which produces output like:
$ git clone --no-local --bare parent.git tmp.git
[...]
fatal: object of unexpected type
fatal: index-pack failed
Not only is the sha1 missing, but it's a misleading message.
There's no type problem, but rather a missing object
problem; we don't notice the difference because we simply
compare OBJ_BAD != OBJ_BLOB. Let's provide a different
message for this case:
$ git clone --no-local --bare parent.git tmp.git
fatal: did not receive expected object 6b00a8c61ed379d5f925a72c1987c9c52129d364
fatal: index-pack failed
While we're at it, let's also improve a true type mismatch
error to look like
fatal: object 6b00a8c61ed379d5f925a72c1987c9c52129d364: expected type blob, got tree
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If a file contained CRLF line endings in a repository with
core.autocrlf=input, then blame always marked lines as "Not
Committed Yet", even if they were unmodified. Don't attempt to
convert the line endings when creating the fake commit so that blame
works correctly regardless of the autocrlf setting.
Reported-by: Ephrim Khong <dr.khong@gmail.com>
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
"git mv hello.txt Hello.txt" on a case insensitive filesystem
always triggers "destination already exists" error, because these
two names refer to the same path from the filesystem's point of
view, and requires the user to give "--force" when correcting the
case of the path recorded in the index and in the next commit.
Detect this case and allow it without requiring "--force".
Signed-off-by: David Turner <dturner@twitter.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Change checkout.c to check if a ref exists instead of checking if a loose ref
file exists when deciding if to delete an orphaned log file. Otherwise, if a
ref only exists as a packed ref without a corresponding loose ref for the
currently checked out branch, we risk that the reflog will be deleted when we
switch to a different branch.
Update the reflog tests to check for this bug.
The following reproduces the bug:
$ git init-db
$ git config core.logallrefupdates true
$ git commit -m Initial --allow-empty
[master (root-commit) bb11abe] Initial
$ git reflog master
[8561dcb master@{0}: commit (initial): Initial]
$ find .git/{refs,logs} -type f | grep master
[.git/refs/heads/master]
[.git/logs/refs/heads/master]
$ git branch foo
$ git pack-refs --all
$ find .git/{refs,logs} -type f | grep master
[.git/logs/refs/heads/master]
$ git checkout foo
$ find .git/{refs,logs} -type f | grep master
... reflog file is missing ...
$ git reflog master
... nothing ...
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Add two new functions, reflog_exists and delete_reflog, to hide the internal
reflog implementation (that they are files under .git/logs/...) from callers.
Update checkout.c to use these functions in update_refs_for_switch instead of
building pathnames and calling out to file access functions. Update reflog.c
to use these to check if the reflog exists. Now there are still many places
in reflog.c where we are still leaking the reflog storage implementation but
this at least reduces the number of such dependencies by one. Finally
change two places in refs.c itself to use the new function to check if a ref
exists or not isntead of build-path-and-stat(). Now, this is strictly not all
that important since these are in parts of refs that are implementing the
actual file storage backend but on the other hand it will not hurt either.
Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Acked-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Display the tag name about to be added to the user during interactive
editing.
Signed-off-by: Thorsten Glaser <tg@debian.org>
Signed-off-by: Richard Hartmann <richih@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This can be observed in many versions of gcc and still exists with 4.9.0:
wt-status.c: In function ‘wt_status_print_unmerged_header’:
wt-status.c:191:2: warning: zero-length gnu_printf format string [-Wformat-zero-length]
status_printf_ln(s, c, "");
^
The user have long been told to pass -Wno-format-zero-length, but a
patch that avoids warning altogether is not too noisy, so let's do
so.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Git generally changes directory to the repository root on
startup. When running "grep --open-files-in-pager" from a
subdirectory, we chdir back to the original directory before
running the pager, so that we can feed the relative
pathnames to the pager.
We currently do this chdir manually, but we can ask
run_command to do it for us. This is fewer lines of code,
and as a bonus, the chdir is limited to the child process,
which avoids any unexpected surprises for code running after
the pager (there isn't any currently, but this is
future-proofing).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Right now we pass off the string found by "--date" straight
to the fmt_ident function, which will use our strict
parse_date to normalize it. However, this means obvious
things like "--date=now" or "--date=2.days.ago" will not
work.
Instead, let's fallback to the approxidate function to
handle this for us. Note that we must try parse_date
ourselves first, even though approxidate will try strict
parsing itself. The reason is that approxidate throws away
any timezone information it sees from the strict parsing,
and we want to preserve it. So asking for:
git commit --date="@1234567890 -0700"
continues to set the date in -0700, regardless of what the
local timezone is.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When we make a commit and the author is not the same as the
committer (e.g., because you used "-c $commit" or
"--author=$somebody"), we print the author's name and email
in both the commit-message template and as part of the
commit summary. This is a safety check to give the user a
chance to confirm that we are doing what they expect.
This patch brings the same safety for the "date" field,
which may be set by "-c" or by using "--date". Note that we
explicitly do not set it for $GIT_AUTHOR_DATE, as it is
probably not of interest when "git commit" is being fed its
parameters by a script.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Instead of string-wise comparing the author/committer lines
with their timestamps truncated, we can use split_ident_line
and ident_cmp. These functions are more robust than our
ad-hoc parsing, though in practice it should not matter, as
we just generated these ident lines ourselves.
However, this will also allow us easy access to the
timestamp and tz fields in future patches.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If we use a different conflict style `git rerere forget` is not able
to find the matching conflict SHA-1 because the diff generated is
actually different from what `git merge` generated, due to the
XDL_MERGE_* option differences among the codepaths.
The fix is to call git_xmerge_config() so that git_xmerge_style is set
properly and the diffs match.
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
