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When using --graft, with a mergetag in the original
commit, we should check that the commit pointed to by
the mergetag is still a parent of then new commit we
create, otherwise the mergetag could be misleading.
If the commit pointed to by the mergetag is no more
a parent of the new commit, we could remove the
mergetag, but in this case there is a good chance
that the title or other elements of the commit might
also be misleading. So let's just error out and
suggest to use --edit instead on the commit.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It could be misleading to keep a signature in a
replacement commit, so let's remove it.
Note that there should probably be a way to sign
the replacement commit created when using --graft,
but this can be dealt with in another commit or
patch series.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The usage string for this option is:
git replace [-f] --graft <commit> [<parent>...]
First we create a new commit that is the same as <commit>
except that its parents are [<parents>...]
Then we create a replace ref that replace <commit> with
the commit we just created.
With this new option, it should be straightforward to
convert grafts to replace refs.
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move "commit->buffer" out of the in-core commit object and keep
track of their lengths. Use this to optimize the code paths to
validate GPG signatures in commit objects.
* jk/commit-buffer-length:
reuse cached commit buffer when parsing signatures
commit: record buffer length in cache
commit: convert commit->buffer to a slab
commit-slab: provide a static initializer
use get_commit_buffer everywhere
convert logmsg_reencode to get_commit_buffer
use get_commit_buffer to avoid duplicate code
use get_cached_commit_buffer where appropriate
provide helpers to access the commit buffer
provide a helper to set the commit buffer
provide a helper to free commit buffer
sequencer: use logmsg_reencode in get_message
logmsg_reencode: return const buffer
do not create "struct commit" with xcalloc
commit: push commit_index update into alloc_commit_node
alloc: include any-object allocations in alloc_report
replace dangerous uses of strbuf_attach
commit_tree: take a pointer/len pair rather than a const strbuf
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Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* maint:
t7300: repair filesystem permissions with test_when_finished
enums: remove trailing ',' after last item in enum
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* maint-1.8.5:
t7300: repair filesystem permissions with test_when_finished
enums: remove trailing ',' after last item in enum
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Signed-off-by: Ronnie Sahlberg <sahlberg@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* rs/blame-refactor:
blame: simplify prepare_lines()
blame: factor out get_next_line()
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* jk/repack-pack-writebitmaps-config:
t7700: drop explicit --no-pack-kept-objects from .keep test
repack: introduce repack.writeBitmaps config option
repack: simplify handling of --write-bitmap-index
pack-objects: stop respecting pack.writebitmaps
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Recent updates to "git repack" started to duplicate objects that
are in packfiles marked with .keep flag into the new packfile by
mistake.
* jk/repack-pack-keep-objects:
repack: s/write_bitmap/&s/ in code
repack: respect pack.writebitmaps
repack: do not accidentally pack kept objects by default
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"git status" (and "git commit") behaved as if changes in a modified
submodule are not there if submodule.*.ignore configuration is set,
which was misleading. The configuration is only to unclutter diff
output during the course of development, and should not to hide
changes in the "status" output to cause the users forget to commit
them.
* jl/status-added-submodule-is-never-ignored:
commit -m: commit staged submodules regardless of ignore config
status/commit: show staged submodules regardless of ignore config
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"git status", even though it is a read-only operation, tries to
update the index with refreshed lstat(2) info to optimize future
accesses to the working tree opportunistically, 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.
* ym/fix-opportunistic-index-update-race:
read-cache.c: verify index file before we opportunistically update it
wrapper.c: add xpread() similar to xread()
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"git remote rm" and "git remote prune" can involve removing many
refs at once, which is not a very efficient thing to do when very
many refs exist in the packed-refs file.
* jl/remote-rm-prune:
remote prune: optimize "dangling symref" check/warning
remote: repack packed-refs once when deleting multiple refs
remote rm: delete remote configuration as the last
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"git rerere forget" did not work well when merge.conflictstyle
was set to a non-default value.
* fc/rerere-conflict-style:
rerere: fix for merge.conflictstyle
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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
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"git mailinfo" used to read beyond 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
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The error reporting from "git index-pack" has been improved to
distinguish missing objects from type errors.
* jk/index-pack-report-missing:
index-pack: distinguish missing objects from type errors
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We used to disable threaded "git index-pack" on platforms without
thread-safe pread(); use a different workaround for such
platforms to allow threaded "git index-pack".
* nd/index-pack-one-fd-per-thread:
index-pack: work around thread-unsafe pread()
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"git grep -O" to show the lines that hit in the pager did not work
well with case insensitive search. We now spawn "less" with its
"-I" option when it is used as the pager (which is the default).
* sk/spawn-less-case-insensitively-from-grep-O-i:
git grep -O -i: if the pager is 'less', pass the '-I' option
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"git gc --auto" was recently changed to run in the background to
give control back early to the end-user sitting in front of the
terminal, but it forgot that housekeeping involving reflogs should
be done without other processes competing for accesses to the refs.
* nd/daemonize-gc:
gc --auto: do not lock refs in the background
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"git format-patch" did not enforce the rule that the "--follow"
option from the log/diff family of commands must be used with
exactly one pathspec.
* jk/diff-follow-must-take-one-pathspec:
move "--follow needs one pathspec" rule to diff_setup_done
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"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
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"git blame" assigned the blame to the copy in the working-tree if
the repository is set to core.autocrlf=input and the file used CRLF
line endings.
* bc/blame-crlf-test:
blame: correctly handle files regardless of autocrlf
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"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
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"--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
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* jc/fetch-pull-refmap:
docs: Explain the purpose of fetch's and pull's <refspec> parameter.
fetch: allow explicit --refmap to override configuration
fetch doc: add a section on configured remote-tracking branches
fetch doc: remove "short-cut" section
fetch doc: update refspec format description
fetch doc: on pulling multiple refspecs
fetch doc: remove notes on outdated "mixed layout"
fetch doc: update note on '+' in front of the refspec
fetch doc: move FETCH_HEAD material lower and add an example
fetch doc: update introductory part for clarity
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* rs/more-starts-with:
Use starts_with() for C strings instead of memcmp()
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* lt/log-auto-decorate:
git log: support "auto" decorations
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* jm/format-patch-mail-sig:
format-patch: add "--signature-file=<file>" option
format-patch: make newline after signature conditional
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Allow remote-helper/fast-import based transport to rename the refs
while transferring the history.
* fc/remote-helper-refmap:
transport-helper: remove unnecessary strbuf resets
transport-helper: add support to delete branches
fast-export: add support to delete refs
fast-import: add support to delete refs
transport-helper: add support to push symbolic refs
transport-helper: add support for old:new refspec
fast-export: add new --refspec option
fast-export: improve argument parsing
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"git gc --auto" was recently changed to run in the background to
give control back early to the end-user sitting in front of the
terminal, but it forgot that housekeeping involving reflogs should
be done without other processes competing for accesses to the refs.
* nd/daemonize-gc:
gc --auto: do not lock refs in the background
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"git remote rm" and "git remote prune" can involve removing many
refs at once, which is not a very efficient thing to do when very
many refs exist in the packed-refs file.
* jl/remote-rm-prune:
remote prune: optimize "dangling symref" check/warning
remote: repack packed-refs once when deleting multiple refs
remote rm: delete remote configuration as the last
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Like calloc(3), xcalloc() takes nmemb and then size.
* bg/xcalloc-nmemb-then-size:
transport-helper.c: rearrange xcalloc arguments
remote.c: rearrange xcalloc arguments
reflog-walk.c: rearrange xcalloc arguments
pack-revindex.c: rearrange xcalloc arguments
notes.c: rearrange xcalloc arguments
imap-send.c: rearrange xcalloc arguments
http-push.c: rearrange xcalloc arguments
diff.c: rearrange xcalloc arguments
config.c: rearrange xcalloc arguments
commit.c: rearrange xcalloc arguments
builtin/remote.c: rearrange xcalloc arguments
builtin/ls-remote.c: rearrange xcalloc arguments
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submodule.*.ignore and diff.ignoresubmodules are used to ignore all
submodule changes in "diff" output, but it can be confusing to
apply these configuration values to status and commit.
This is a backward-incompatible change, but should be so in a good
way (aka bugfix).
* jl/status-added-submodule-is-never-ignored:
commit -m: commit staged submodules regardless of ignore config
status/commit: show staged submodules regardless of ignore config
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* jk/daemon-tolower:
daemon/config: factor out duplicate xstrdup_tolower
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* jk/diff-follow-must-take-one-pathspec:
move "--follow needs one pathspec" rule to diff_setup_done
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"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
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* '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
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Changing get_next_line() to return the end pointer instead of NULL in
case no newline character is found treats allows us to treat complete
and incomplete lines the same, simplifying the code. Switching to
counting lines instead of EOLs allows us to start counting at the
first character, instead of having to call get_next_line() first.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move the code for finding the start of the next line into a helper
function in order to reduce duplication.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Most callsites which use the commit buffer try to use the
cached version attached to the commit, rather than
re-reading from disk. Unfortunately, that interface provides
only a pointer to the NUL-terminated buffer, with no
indication of the original length.
For the most part, this doesn't matter. People do not put
NULs in their commit messages, and the log code is happy to
treat it all as a NUL-terminated string. However, some code
paths do care. For example, when checking signatures, we
want to be very careful that we verify all the bytes to
avoid malicious trickery.
This patch just adds an optional "size" out-pointer to
get_commit_buffer and friends. The existing callers all pass
NULL (there did not seem to be any obvious sites where we
could avoid an immediate strlen() call, though perhaps with
some further refactoring we could).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Each of these sites assumes that commit->buffer is valid.
Since they would segfault if this was not the case, they are
likely to be correct in practice. However, we can
future-proof them by using get_commit_buffer.
And as a side effect, we abstract away the final bare uses
of commit->buffer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Like the callsites in the previous commit, logmsg_reencode
already falls back to read_sha1_file when necessary.
However, I split its conversion out into its own commit
because it's a bit more complex.
We return either:
1. The original commit->buffer
2. A newly allocated buffer from read_sha1_file
3. A reencoded buffer (based on either 1 or 2 above).
while trying to do as few extra reads/allocations as
possible. Callers currently free the result with
logmsg_free, but we can simplify this by pointing them
straight to unuse_commit_buffer. This is a slight layering
violation, in that we may be passing a buffer from (3).
However, since the end result is to free() anything except
(1), which is unlikely to change, and because this makes the
interface much simpler, it's a reasonable bending of the
rules.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some call sites check commit->buffer to see whether we have
a cached buffer, and if so, do some work with it. In the
long run we may want to switch these code paths to make
their decision on a different boolean flag (because checking
the cache may get a little more expensive in the future).
But for now, we can easily support them by converting the
calls to use get_cached_commit_buffer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Right now this is just a one-liner, but abstracting it will
make it easier to change later.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This converts two lines into one at each caller. But more
importantly, it abstracts the concept of freeing the buffer,
which will make it easier to change later.
Note that we also need to provide a "detach" mechanism for a
tricky case in index-pack. We are passed a buffer for the
object generated by processing the incoming pack. If we are
not using --strict, we just calculate the sha1 on that
buffer and return, leaving the caller to free it. But if we
are using --strict, we actually attach that buffer to an
object, pass the object to the fsck functions, and then
detach the buffer from the object again (so that the caller
can free it as usual). In this case, we don't want to free
the buffer ourselves, but just make sure it is no longer
associated with the commit.
Note that we are making the assumption here that the
attach/detach process does not impact the buffer at all
(e.g., it is never reallocated or modified). That holds true
now, and we have no plans to change that. However, as we
abstract the commit_buffer code, this dependency becomes
less obvious. So when we detach, let's also make sure that
we get back the same buffer that we gave to the
commit_buffer code.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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* jc/rev-parse-argh-dashed-multi-words:
update-index: fix segfault with missing --cacheinfo argument
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The return value from logmsg_reencode may be either a newly
allocated buffer or a pointer to the existing commit->buffer.
We would not want the caller to accidentally free() or
modify the latter, so let's mark it as const. We can cast
away the constness in logmsg_free, but only once we have
determined that it is a free-able buffer.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In both blame and merge-recursive, we sometimes create a
"fake" commit struct for convenience (e.g., to represent the
HEAD state as if we would commit it). By allocating
ourselves rather than using alloc_commit_node, we do not
properly set the "index" field of the commit. This can
produce subtle bugs if we then use commit-slab on the
resulting commit, as we will share the "0" index with
another commit.
We can fix this by using alloc_commit_node() to allocate.
Note that we cannot free the result, as it is part of our
commit allocator. However, both cases were already leaking
the allocated commit anyway, so there's nothing to fix up.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Christian Couder
Junio C Hamano
Ronnie Sahlberg
René Scharfe
Jeff King