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When we are doing a destructive operation like "git prune",
we want to be extra careful that the set of reachable tips
we compute is valid. If there is any corruption or oddity,
we are better off aborting the operation and letting the
user figure things out rather than plowing ahead and
possibly deleting some data that cannot be recovered.
The tests here include:
1. Pruning objects mentioned only be refs with invalid
names. This used to abort prior to d0f810f (refs.c:
allow listing and deleting badly named refs,
2014-09-03), but since then we silently ignore the tip.
Likewise, we test repacking that can drop objects
(either "-ad", which drops anything unreachable,
or "-Ad --unpack-unreachable=<time>", which tries to
optimize out a loose object write that would be
directly pruned).
2. Pruning objects when some refs point to missing
objects. We don't know whether any dangling objects
would have been reachable from the missing objects. We
are better to keep them around, as they are better than
nothing for helping the user recover history.
3. Packed refs that point to missing objects can sometimes
be dropped. By itself, this is more of an annoyance
(you do not have the object anyway; even if you can
recover it from elsewhere, all you are losing is a
placeholder for your state at the time of corruption).
But coupled with (2), if we drop the ref and then go
on to prune, we may lose unrecoverable objects.
Note that we use test_might_fail for some of the operations.
In some cases, it would be appropriate to abort the
operation, and in others, it might be acceptable to continue
but taking the information into account. The tests don't
care either way, and check only for data loss.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Documentation update.
* mr/doc-clean-f-f:
Documentation/git-clean.txt: document that -f may need to be given twice
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* ak/t5516-typofix:
t5516: correct misspelled pushInsteadOf
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Test clean-up.
* jc/diff-test-updates:
test_ln_s_add: refresh stat info of fake symbolic links
t4008: modernise style
t/diff-lib: check exact object names in compare_diff_raw
tests: do not borrow from COPYING and README from the real source
t4010: correct expected object names
t9300: correct expected object names
t4008: correct stale comments
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A corrupt input to "git diff -M" can cause us to segfault.
* jk/diffcore-rename-duplicate:
diffcore-rename: avoid processing duplicate destinations
diffcore-rename: split locate_rename_dst into two functions
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The borrowed code in kwset API did not follow our usual convention
to use "unsigned char" to store values that range from 0-255.
* bw/kwset-use-unsigned:
kwset: use unsigned char to store values with high-bit set
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Description given by "grep -h" for its --exclude-standard option
was phrased poorly.
* nd/grep-exclude-standard-help-fix:
grep: correct help string for --exclude-standard
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"git remote add" mentioned "--tags" and "--no-tags" and was not
clear that fetch from the remote in the future will use the default
behaviour when neither is given to override it.
* mg/doc-remote-tags-or-not:
git-remote.txt: describe behavior without --tags and --no-tags
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"git diff --shortstat --dirstat=changes" showed a dirstat based on
lines that was never asked by the end user in addition to the
dirstat that the user asked for.
* mk/diff-shortstat-dirstat-fix:
diff --shortstat --dirstat: remove duplicate output
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The interaction between "git submodule update" and the
submodule.*.update configuration was not clearly documented.
* ms/submodule-update-config-doc:
submodule: improve documentation of update subcommand
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"git apply" was not very careful about reading from, removing,
updating and creating paths outside the working tree (under
--index/--cached) or the current directory (when used as a
replacement for GNU patch).
* jc/apply-beyond-symlink:
apply: do not touch a file beyond a symbolic link
apply: do not read from beyond a symbolic link
apply: do not read from the filesystem under --index
apply: reject input that touches outside the working area
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"git daemon" looked up the hostname even when "%CH" and "%IP"
interpolations are not requested, which was unnecessary.
* rs/daemon-interpolate:
daemon: use callback to build interpolated path
daemon: look up client-supplied hostname lazily
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The "interpolated-path" option of "git daemon" inserted any string
client declared on the "host=" capability request without checking.
Sanitize and limit %H and %CH to a saner and a valid DNS name.
* jk/daemon-interpolate:
daemon: sanitize incoming virtual hostname
t5570: test git-daemon's --interpolated-path option
git_connect: let user override virtual-host we send to daemon
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Code cleanups.
* rj/no-xopen-source-for-cygwin:
git-compat-util.h: remove redundant code
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Code cleanups.
* rs/simple-cleanups:
sha1_name: use strlcpy() to copy strings
pretty: use starts_with() to check for a prefix
for-each-ref: use skip_prefix() to avoid duplicate string comparison
connect: use strcmp() for string comparison
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The configuration variable 'mailinfo.scissors' was hard to
discover in the documentation.
* mm/am-c-doc:
Documentation/git-am.txt: mention mailinfo.scissors config variable
Documentation/config.txt: document mailinfo.scissors
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Correct a breakage to git-svn around v2.2 era that triggers
premature closing of FileHandle.
* ew/svn-maint-fixes:
Git::SVN::*: avoid premature FileHandle closure
git-svn: fix localtime=true on non-glibc environments
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Even though we officially haven't dropped Perl 5.8 support, the
Getopt::Long package that came with it does not support "--no-"
prefix to negate a boolean option; manually add support to help
people with older Getopt::Long package.
* km/send-email-getopt-long-workarounds:
git-send-email.perl: support no- prefix with older GetOptions
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"update-index --refresh" used to leak when an entry cannot be
refreshed for whatever reason.
* sb/plug-leak-in-make-cache-entry:
read-cache.c: free cache entry when refreshing fails
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"git fast-import" used to crash when it could not close and
conclude the resulting packfile cleanly.
* jk/fast-import-die-nicely-fix:
fast-import: avoid running end_packfile recursively
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"git blame" died, trying to free an uninitialized piece of memory.
* es/blame-commit-info-fix:
builtin/blame: destroy initialized commit_info only
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"git merge-file" did not work correctly in a subdirectory.
* ab/merge-file-prefix:
merge-file: correctly open files when in a subdir
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"git submodule add" failed to squash "path/to/././submodule" to
"path/to/submodule".
* ps/submodule-sanitize-path-upon-add:
git-submodule.sh: fix '/././' path normalization
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In v2.2.0, we broke "git prune" that runs in a repository that
borrows from an alternate object store.
* jk/prune-mtime:
sha1_file: fix iterating loose alternate objects
for_each_loose_file_in_objdir: take an optional strbuf path
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Certain older vintages of cURL give irregular output from
"curl-config --vernum", which confused our build system.
* tc/curl-vernum-output-broken-in-7.11:
Makefile: handle broken curl version number in version check
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An earlier workaround to squelch unhelpful deprecation warnings
from the complier on Mac OSX unnecessarily set minimum required
version of the OS, which the user might want to raise (or lower)
for other reasons.
* es/squelch-openssl-warnings-on-macosx:
git-compat-util: do not step on MAC_OS_X_VERSION_MIN_REQUIRED
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Longstanding configuration variable naming rules has been added to
the documentation.
* jc/conf-var-doc:
CodingGuidelines: describe naming rules for configuration variables
config.txt: mark deprecated variables more prominently
config.txt: clarify that add.ignore-errors is deprecated
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The credential helper for Windows (in contrib/) used to mishandle
a user name with an at-sign in it.
* av/wincred-with-at-in-username-fix:
wincred: fix get credential if username has "@"
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Older GnuPG implementations may not correctly import the keyring
material we prepare for the tests to use.
* ch/new-gpg-drops-rfc-1991:
t/lib-gpg: sanity-check that we can actually sign
t/lib-gpg: include separate public keys in keyring.gpg
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Clarify in the documentation that "remote.<nick>.pushURL" and
"remote.<nick>.URL" are there to name the same repository accessed
via different transports, not two separate repositories.
* jc/remote-set-url-doc:
Documentation/git-remote.txt: stress that set-url is not for triangular
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The pack bitmap support did not build with older versions of GCC.
* jk/pack-bitmap:
ewah: fix building with gcc < 3.4.0
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Reading configuration from a blob object, when it ends with a lone
CR, use to confuse the configuration parser.
* jk/config-no-ungetc-eof:
config_buf_ungetc: warn when pushing back a random character
config: do not ungetc EOF
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We didn't format an integer that wouldn't fit in "int" but in
"uintmax_t" correctly.
* jk/decimal-width-for-uintmax:
decimal_width: avoid integer overflow
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"git push --signed" gave an incorrectly worded error message when
the other side did not support the capability.
* jc/push-cert:
transport-helper: fix typo in error message when --signed is not supported
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"git fetch" over a remote-helper that cannot respond to "list"
command could not fetch from a symbolic reference e.g. HEAD.
* mh/deref-symref-over-helper-transport:
transport-helper: do not request symbolic refs to remote helpers
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The insn sheet "git rebase -i" creates did not fully honor
core.abbrev settings.
* ks/rebase-i-abbrev:
rebase -i: use full object name internally throughout the script
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Code clean-up.
* dp/remove-duplicated-header-inclusion:
do not include the same header twice
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Code clean-up.
* sb/hex-object-name-is-at-most-41-bytes-long:
hex.c: reduce memory footprint of sha1_to_hex static buffers
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Typofix in comments.
* ak/git-pm-typofix:
Git.pm: two minor typo fixes
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The tests that wanted to see that file becomes unreadable after
running "chmod a-r file", and the tests that wanted to make sure it
is not run as root, we used "can we write into the / directory?" as
a cheap substitute, but on some platforms that is not a good
heuristics. The tests and their prerequisites have been updated to
check what they really require.
* jk/sanity:
test-lib.sh: set prerequisite SANITY by testing what we really need
tests: correct misuses of POSIXPERM
t/lib-httpd: switch SANITY check for NOT_ROOT
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A future breakage to "git push" to make it incorrectly pay attention
to pushInsteadOf when it should not will be left uncaught without
this change.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The documentation of 'git submodule update' has several problems:
1) It mentions that value 'none' of submodule.$name.update can be
overridden by --checkout, but other combinations of configuration
values and command line options are not mentioned.
2) The documentation of submodule.$name.update is scattered across three
places, which is confusing.
3) The documentation of submodule.$name.update in gitmodules.txt is
incorrect, because the code always uses the value from .git/config
and never from .gitmodules.
4) Documentation of --force was incomplete, because it is only effective
in case of checkout method of update.
Fix all these problems by documenting submodule.*.update in
git-submodule.txt and make everybody else refer to it.
Helped-by: Junio C Hamano <gitster@pobox.com>
Helped-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sun Studio on Solaris issues warnings about improper initialization
values being used when defining tolower_trans_tbl[] in ctype.c. The
array wants to store values with high-bit set and treat them as
values between 128 to 255. Unlike the rest of the Git codebase
where we explicitly specify 'unsigned char' for such variables and
arrays, however, kwset code we borrowed from elsewhere uses 'char'
for this and other variables.
Fix the declarations to explicitly use 'unsigned char' where
necessary to bring it in line with the rest of the Git.
Signed-off-by: Ben Walton <bdwalton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When --shortstat is used in conjunction with --dirstat=changes, git diff will
output the dirstat information twice: first as calculated by the 'lines'
algorithm, then as calculated by the 'changes' algorithm:
$ git diff --dirstat=changes,10 --shortstat v2.2.0..v2.2.1
23 files changed, 453 insertions(+), 54 deletions(-)
33.5% Documentation/RelNotes/
26.2% t/
46.6% Documentation/RelNotes/
16.6% t/
The same duplication happens for --shortstat together with --dirstat=files, but
not for --shortstat together with --dirstat=lines.
Limit output to only include one dirstat part, calculated as specified
by the --dirstat parameter. Also, add test for this.
Signed-off-by: Mårten Kongstad <marten.kongstad@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The rename code cannot handle an input where we have
duplicate destinations (i.e., more than one diff_filepair in
the queue with the same string in its pair->two->path). We
end up allocating only one slot in the rename_dst mapping.
If we fill in the diff_filepair for that slot, when we
re-queue the results, we may queue that filepair multiple
times. When the diff is finally flushed, the filepair is
processed and free()d multiple times, leading to heap
corruption.
This situation should only happen when a tree diff sees
duplicates in one of the trees (see the added test for a
detailed example). Rather than handle it, the sanest thing
is just to turn off rename detection altogether for the
diff.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This function manages the mapping of destination pathnames
to filepairs, and it handles both insertion and lookup. This
makes the return value a bit confusing, as we return a newly
created entry (even though no caller cares), and have no
room to indicate to the caller that an entry already
existed.
Instead, let's break this up into two distinct functions,
both backed by a common binary search. The binary search
will use our normal "return the index if we found something,
or negative index minus one to show where it would have
gone" semantics.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Jeff King
Junio C Hamano
Anders Kaseorg
Michal Sojka
Michael J Gruber
Ben Walton
Mårten Kongstad