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Since 8cbeba0632 (tests: define GIT_TEST_PROTOCOL_VERSION,
2019-02-25), it has been possible to run tests with a newer protocol
version by setting the GIT_TEST_PROTOCOL_VERSION envvar to a version
number. Tests that assume protocol v0 handle this by explicitly
setting
GIT_TEST_PROTOCOL_VERSION=
or similar constructs like 'test -z "$GIT_TEST_PROTOCOL_VERSION" ||
return 0' to declare that they only handle the default (v0) protocol.
The emphasis there is a bit off: it would be clearer to specify
GIT_TEST_PROTOCOL_VERSION=0 to inform the reader that these tests are
specifically testing and relying on details of protocol v0. Do so.
This way, a reader does not need to know what the default protocol
version is, and the tests can continue to work when the default
protocol version used by Git advances past v0.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Git's protocol version 2 has been working well in production for over
a year. Simplify documentation by no longer referring to it as
experimental.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git cat-file -e" uses has_object_file, which can fetch from promisor
remotes when an object is missing. These tests end up checking that
that fetch fails instead of for the object being missing.
By luck, the tests pass anyway:
- in one of these tests ("filtering by size"), the fetch fails because
(in protocol v0) the server does not support fetches by SHA-1
- in the second, the object is present but the test could pass even if
it weren't if the fetch succeeds
- in the third, the test sets extensions.partialClone to "arbitrary
string" so that when it tries to fetch, it looks up the "arbitrary
string" remote which does not exist
Use "git rev-list --objects --missing=allow-any", so that the tests
pass for the right reason.
Noticed while testing with protocol v2, which allows fetching by sha1
by default, causing the first fetch to succeed and the test to fail.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since 633a53179e (fetch test: avoid use of "VAR= cmd" with a shell
function, 2019-12-26), t5552.5 (do not send "have" with ancestors of
commits that server ACKed) fails when run with
GIT_TEST_PROTOCOL_VERSION=2.
The cause:
The progression of "have"s sent in negotiation depends on whether we
are using a stateless RPC based transport or a stateful bidirectional
one (see for example 44d8dc54e7, "Fix potential local deadlock during
fetch-pack", 2011-03-29). In protocol v2, all transports are
stateless transports, while in protocol v0, transports such as local
access and ssh are stateful.
In stateful transports, the number of "have"s to send multiplies by
two each round until we reach PIPESAFE_FLUSH (that is, 32), and then
it increases by PIPESAFE_FLUSH each round. In stateless transport,
the count multiplies by two each round until we reach LARGE_FLUSH
(which is 16384) and then multiplies by 1.1 each round after that.
Moreover, in stateful transports, as fetch-pack.c explains:
We keep one window "ahead" of the other side, and will wait
for an ACK only on the next one.
This affects t5552.5 because it looks for "have"s from the negotiator
that appear in that second window. With protocol version 2, the
second window never arrives, and the test fails.
Until 633a53179e (2019-12-26), a previous test in the same file
contained
GIT_TEST_PROTOCOL_VERSION= trace_fetch client origin to_fetch
In many common shells (e.g. bash when run as "sh"), the setting of
GIT_TEST_PROTOCOL_VERSION to the empty string lasts beyond the
intended duration of the trace_fetch invocation. This causes it to
override the GIT_TEST_PROTOCOL_VERSION setting that was passed in to
the test during the remainder of the test script, so t5552.5 never got
run using protocol v2 on those shells, regardless of the
GIT_TEST_PROTOCOL_VERSION setting from the environment. 633a53179e
fixed that, revealing the failing test.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just like assigning a nonempty value, assigning an empty value to a
shell variable when calling a function produces non-portable behavior:
in some shells, the assignment lasts for the duration of the function
invocation, and in others, it persists after the function returns.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Just like assigning a nonempty value, assigning an empty value to a
shell variable when calling a function produces non-portable behavior:
in some shells, the assignment lasts for the duration of the function
invocation, and in others, it persists after the function returns.
Use an explicit subshell with the envvar exported to make the behavior
consistent across shells and crystal clear.
All previous instances of this pattern used "VAR=value" (with nonempty
`value`), which is already diagnosed automatically by "make test-lint"
since a0a630192d (t/check-non-portable-shell: detect "FOO=bar
shell_func", 2018-07-13).
Noticed using an improved "make test-lint".
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A few commands learned to take the pathspec from the
standard input or a named file, instead of taking it as the command
line arguments.
* am/pathspec-from-file:
commit: support the --pathspec-from-file option
doc: commit: synchronize <pathspec> description
reset: support the `--pathspec-from-file` option
doc: reset: synchronize <pathspec> description
pathspec: add new function to parse file
parse-options.h: add new options `--pathspec-from-file`, `--pathspec-file-nul`
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Publicize lore.kernel.org mailing list archive and use URLs
pointing into it to refer to notable messages in the documentation.
* dl/lore-is-the-archive:
doc: replace LKML link with lore.kernel.org
RelNotes: replace Gmane with real Message-IDs
doc: replace MARC links with lore.kernel.org
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Doc update for the mailing list archiving and nntp service.
* jk/lore-is-the-archive:
doc: replace public-inbox links with lore.kernel.org
doc: recommend lore.kernel.org over public-inbox.org
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PerfTest fix to avoid stale result mixed up with the latest round
of test results.
* tg/perf-remove-stale-result:
perf-lib: use a single filename for all measurement types
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Performance tweak on "git push" into a repository with many refs
that point at objects we have never heard of.
* jk/send-pack-check-negative-with-quick:
send-pack: use OBJECT_INFO_QUICK to check negative objects
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Code cleanup.
* hi/grep-do-not-return-void:
grep: don't return an expression from pcre2_free()
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Code cleanup.
* rs/use-skip-prefix-more:
name-rev: use skip_prefix() instead of starts_with()
push: use skip_prefix() instead of starts_with()
shell: use skip_prefix() instead of starts_with()
fmt-merge-msg: use skip_prefix() instead of starts_with()
fetch: use skip_prefix() instead of starts_with()
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Code cleanup.
* rs/simplify-prepare-cmd:
run-command: use prepare_git_cmd() in prepare_cmd()
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Test cleanup.
* rs/test-cleanup:
t7811: don't create unused file
t9300: don't create unused file
test: use test_must_be_empty F instead of test_cmp empty F
test: use test_must_be_empty F instead of test -z $(cat F)
t1400: use test_must_be_empty
t1410: use test_line_count
t1512: use test_line_count
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While running "revert" or "cherry-pick --edit" for multiple
commits, a recent regression incorrectly detected "nothing to
commit, working tree clean", instead of replaying the commits,
which has been corrected.
* sg/assume-no-todo-update-in-cherry-pick:
sequencer: don't re-read todo for revert and cherry-pick
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TravisCI update.
* sg/osx-force-gcc-9:
ci: build Git with GCC 9 in the 'osx-gcc' build job
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.23: (44 commits)
Git 2.23.1
Git 2.22.2
Git 2.21.1
mingw: sh arguments need quoting in more circumstances
mingw: fix quoting of empty arguments for `sh`
mingw: use MSYS2 quoting even when spawning shell scripts
mingw: detect when MSYS2's sh is to be spawned more robustly
t7415: drop v2.20.x-specific work-around
Git 2.20.2
t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
Git 2.19.3
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.22: (43 commits)
Git 2.22.2
Git 2.21.1
mingw: sh arguments need quoting in more circumstances
mingw: fix quoting of empty arguments for `sh`
mingw: use MSYS2 quoting even when spawning shell scripts
mingw: detect when MSYS2's sh is to be spawned more robustly
t7415: drop v2.20.x-specific work-around
Git 2.20.2
t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
Git 2.19.3
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.21: (42 commits)
Git 2.21.1
mingw: sh arguments need quoting in more circumstances
mingw: fix quoting of empty arguments for `sh`
mingw: use MSYS2 quoting even when spawning shell scripts
mingw: detect when MSYS2's sh is to be spawned more robustly
t7415: drop v2.20.x-specific work-around
Git 2.20.2
t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
Git 2.19.3
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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These patches fix several bugs in quoting arguments when spawning shell
scripts on Windows.
Note: these bugs are Windows-only, as we have to construct a command
line for the process-to-spawn, unlike Linux/macOS, where `execv()`
accepts an already-split command line.
Furthermore, these fixes were not included in the CVE-2019-1350 part of
v2.14.6 because the Windows-specific quoting when spawning shell scripts
was contributed from Git for Windows into Git only in the v2.21.x era.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Previously, we failed to quote characters such as '*', '(' and the
likes. Let's fix this.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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This reverts the work-around that was introduced just for the v2.20.x
release train in "t7415: adjust test for dubiously-nested submodule
gitdirs for v2.20.x"; It is not necessary for v2.21.x.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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When constructing command-lines to spawn processes, it is an unfortunate
but necessary decision to quote arguments differently: MSYS2 has
different dequoting rules (inherited from Cygwin) than the rest of
Windows.
To accommodate that, Git's Windows compatibility layer has two separate
quoting helpers, one for MSYS2 (which it uses exclusively when spawning
`sh`) and the other for regular Windows executables.
The MSYS2 one had an unfortunate bug where a `,` somehow slipped in,
instead of the `;`. As a consequence, empty arguments would not be
enclosed in a pair of double quotes, but the closing double quote was
skipped.
Let's fix this.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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At the point where `mingw_spawn_fd()` is called, we already have a full
path to the script interpreter in that scenario, and we pass it in as
the executable to run, while the `argv` reflect what the script should
receive as command-line.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.20: (36 commits)
Git 2.20.2
t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
Git 2.19.3
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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In v2.15.4, we started to reject `submodule.update` settings in
`.gitmodules`. Let's raise a BUG if it somehow still made it through
from anywhere but the Git config.
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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In v2.20.x, Git clones submodules recursively by first creating the
submodules' gitdirs and _then_ "updating" the submodules. This can lead
to the situation where the clone path is taken because the directory
(while it exists already) is not a git directory, but then the clone
fails because that gitdir is unexpectedly already a directory.
This _also_ works around the vulnerability that was fixed in "Disallow
dubiously-nested submodule git directories", but it produces a different
error message than the one expected by the test case, therefore we
adjust the test case accordingly.
Note: as the two submodules "race each other", there are actually two
possible error messages, therefore we have to teach the test case to
expect _two_ possible (and good) outcomes in addition to the one it
expected before.
Note: this workaround is only necessary for the v2.20.x release train;
The behavior changed again in v2.21.x so that the original test case's
expectations are met again.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.19: (34 commits)
Git 2.19.3
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.18: (33 commits)
Git 2.18.2
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
is_ntfs_dotgit(): speed it up
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.17: (32 commits)
Git 2.17.3
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
is_ntfs_dotgit(): speed it up
mingw: disallow backslash characters in tree objects' file names
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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This allows hosting providers to detect whether they are being used
to attack users using malicious 'update = !command' settings in
.gitmodules.
Since ac1fbbda2013 (submodule: do not copy unknown update mode from
.gitmodules, 2013-12-02), in normal cases such settings have been
treated as 'update = none', so forbidding them should not produce any
collateral damage to legitimate uses. A quick search does not reveal
any repositories making use of this construct, either.
Reported-by: Joern Schneeweisz <jschneeweisz@gitlab.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.16: (31 commits)
Git 2.16.6
test-drop-caches: use `has_dos_drive_prefix()`
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
is_ntfs_dotgit(): speed it up
mingw: disallow backslash characters in tree objects' file names
path: safeguard `.git` against NTFS Alternate Streams Accesses
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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This is a companion patch to 'mingw: handle `subst`-ed "DOS drives"':
use the DOS drive prefix handling that is already provided by
`compat/mingw.c` (and which just learned to handle non-alphabetical
"drive letters").
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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* maint-2.15: (29 commits)
Git 2.15.4
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
is_ntfs_dotgit(): speed it up
mingw: disallow backslash characters in tree objects' file names
path: safeguard `.git` against NTFS Alternate Streams Accesses
clone --recurse-submodules: prevent name squatting on Windows
is_ntfs_dotgit(): only verify the leading segment
...
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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Since ac1fbbda2013 (submodule: do not copy unknown update mode from
.gitmodules, 2013-12-02), Git has been careful to avoid copying
[submodule "foo"]
update = !run an arbitrary scary command
from .gitmodules to a repository's local config, copying in the
setting 'update = none' instead. The gitmodules(5) manpage documents
the intention:
The !command form is intentionally ignored here for security
reasons
Unfortunately, starting with v2.20.0-rc0 (which integrated ee69b2a9
(submodule--helper: introduce new update-module-mode helper,
2018-08-13, first released in v2.20.0-rc0)), there are scenarios where
we *don't* ignore it: if the config store contains no
submodule.foo.update setting, the submodule-config API falls back to
reading .gitmodules and the repository-supplied !command gets run
after all.
This was part of a general change over time in submodule support to
read more directly from .gitmodules, since unlike .git/config it
allows a project to change values between branches and over time
(while still allowing .git/config to override things). But it was
never intended to apply to this kind of dangerous configuration.
The behavior change was not advertised in ee69b2a9's commit message
and was missed in review.
Let's take the opportunity to make the protection more robust, even in
Git versions that are technically not affected: instead of quietly
converting 'update = !command' to 'update = none', noisily treat it as
an error. Allowing the setting but treating it as meaning something
else was just confusing; users are better served by seeing the error
sooner. Forbidding the construct makes the semantics simpler and
means we can check for it in fsck (in a separate patch).
As a result, the submodule-config API cannot read this value from
.gitmodules under any circumstance, and we can declare with confidence
For security reasons, the '!command' form is not accepted
here.
Reported-by: Joern Schneeweisz <jschneeweisz@gitlab.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
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* maint-2.14: (28 commits)
Git 2.14.6
mingw: handle `subst`-ed "DOS drives"
mingw: refuse to access paths with trailing spaces or periods
mingw: refuse to access paths with illegal characters
unpack-trees: let merged_entry() pass through do_add_entry()'s errors
quote-stress-test: offer to test quoting arguments for MSYS2 sh
t6130/t9350: prepare for stringent Win32 path validation
quote-stress-test: allow skipping some trials
quote-stress-test: accept arguments to test via the command-line
tests: add a helper to stress test argument quoting
mingw: fix quoting of arguments
Disallow dubiously-nested submodule git directories
protect_ntfs: turn on NTFS protection by default
path: also guard `.gitmodules` against NTFS Alternate Data Streams
is_ntfs_dotgit(): speed it up
mingw: disallow backslash characters in tree objects' file names
path: safeguard `.git` against NTFS Alternate Streams Accesses
clone --recurse-submodules: prevent name squatting on Windows
is_ntfs_dotgit(): only verify the leading segment
test-path-utils: offer to run a protectNTFS/protectHFS benchmark
...
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Jonathan Nieder
Junio C Hamano
Johannes Schindelin