Commit graph

61597 commits

Author SHA1 Message Date
Ævar Arnfjörð Bjarmason 8464b2d1d8 git config doc: fix recent ASCIIDOC formatting regression
Fix a regression in 8c32856133 (blame: document --color-* options,
2021-10-08), which added an extra newline before the "+" syntax.

The "Documentation/doc-diff HEAD~ HEAD" output with this applied is:

    [...]
    @@ -1815,13 +1815,13 @@ CONFIGURATION FILE
                specified colors if the line was introduced before the given
                timestamp, overwriting older timestamped colors.

    -       + Instead of an absolute timestamp relative timestamps work as well,
    -       e.g. 2.weeks.ago is valid to address anything older than 2 weeks.
    +           Instead of an absolute timestamp relative timestamps work as well,
    +           e.g.  2.weeks.ago is valid to address anything older than 2 weeks.

    -       + It defaults to blue,12 month ago,white,1 month ago,red, which colors
    -       everything older than one year blue, recent changes between one month
    -       and one year old are kept white, and lines introduced within the last
    -       month are colored red.
    +           It defaults to blue,12 month ago,white,1 month ago,red, which
    +           colors everything older than one year blue, recent changes between
    +           one month and one year old are kept white, and lines introduced
    +           within the last month are colored red.

            color.blame.repeatedLines
                Use the specified color to colorize line annotations for git blame

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-20 10:55:09 -07:00
Bagas Sanjaya 8c32856133 blame: document --color-* options
Commit cdc2d5f11f (builtin/blame: dim uninteresting metadata lines,
2018-04-23) and 25d5f52901 (builtin/blame: highlight recently changed
lines, 2018-04-23) introduce --color-lines and --color-by-age options to
git blame, respectively. While both options are mentioned in usage help,
they aren't documented in git-blame(1). Document them.

Co-authored-by: Dr. Matthias St. Pierre <m.st.pierre@ncp-e.com>
Signed-off-by: Dr. Matthias St. Pierre <m.st.pierre@ncp-e.com>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-08 14:05:43 -07:00
Bagas Sanjaya 38c356aad6 blame: describe default output format
While there is descriptions for porcelain and incremental output
formats, the default format isn't described. Describe that format for
the sake of completeness.

Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-10-01 15:44:32 -07:00
Johannes Schindelin 94f6e3e283 Git 2.30.2
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:51:13 +01:00
Johannes Schindelin e4e68081bb Sync with 2.29.3
* maint-2.29:
  Git 2.29.3
  Git 2.28.1
  Git 2.27.1
  Git 2.26.3
  Git 2.25.5
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:51:12 +01:00
Johannes Schindelin 0628636d0c Git 2.29.3
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:50:15 +01:00
Johannes Schindelin d7bdabe52f Sync with 2.28.1
* maint-2.28:
  Git 2.28.1
  Git 2.27.1
  Git 2.26.3
  Git 2.25.5
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:50:14 +01:00
Johannes Schindelin e4f4299859 Git 2.28.1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:50:10 +01:00
Johannes Schindelin 3f01e56686 Sync with 2.27.1
* maint-2.27:
  Git 2.27.1
  Git 2.26.3
  Git 2.25.5
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:50:09 +01:00
Johannes Schindelin 6ff7f46039 Git 2.27.1
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:50:05 +01:00
Johannes Schindelin 2d1142a3e8 Sync with 2.26.3
* maint-2.26:
  Git 2.26.3
  Git 2.25.5
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:50:04 +01:00
Johannes Schindelin a79fd20c71 Git 2.26.3
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:50:00 +01:00
Johannes Schindelin 8f80393c14 Sync with 2.25.5
* maint-2.25:
  Git 2.25.5
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:59 +01:00
Johannes Schindelin 42ce4c7930 Git 2.25.5
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:55 +01:00
Johannes Schindelin 97d1dcb1ef Sync with 2.24.4
* maint-2.24:
  Git 2.24.4
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:55 +01:00
Johannes Schindelin 06214d171b Git 2.24.4
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:50 +01:00
Johannes Schindelin 92ac04b8ee Sync with 2.23.4
* maint-2.23:
  Git 2.23.4
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:50 +01:00
Johannes Schindelin d60b6a96f0 Git 2.23.4
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:46 +01:00
Johannes Schindelin 4bd06fd490 Sync with 2.22.5
* maint-2.22:
  Git 2.22.5
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:45 +01:00
Johannes Schindelin c753e2a7a8 Git 2.22.5
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:41 +01:00
Johannes Schindelin bcf08f33d8 Sync with 2.21.4
* maint-2.21:
  Git 2.21.4
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:41 +01:00
Johannes Schindelin c735d7470e Git 2.21.4
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:36 +01:00
Johannes Schindelin b1726b1a38 Sync with 2.20.5
* maint-2.20:
  Git 2.20.5
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:35 +01:00
Johannes Schindelin 8b1a5f33d3 Git 2.20.5
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:49:17 +01:00
Johannes Schindelin 804963848e Sync with 2.19.6
* maint-2.19:
  Git 2.19.6
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:49:17 +01:00
Johannes Schindelin 9fb2a1fb08 Git 2.19.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:47:48 +01:00
Johannes Schindelin fb049fd85b Sync with 2.18.5
* maint-2.18:
  Git 2.18.5
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:47:47 +01:00
Johannes Schindelin 6eed462c8f Git 2.18.5
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:47:43 +01:00
Johannes Schindelin 9b77cec89b Sync with 2.17.6
* maint-2.17:
  Git 2.17.6
  unpack_trees(): start with a fresh lstat cache
  run-command: invalidate lstat cache after a command finished
  checkout: fix bug that makes checkout follow symlinks in leading path
2021-02-12 15:47:42 +01:00
Johannes Schindelin 6b82d3eea6 Git 2.17.6
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:47:02 +01:00
Matheus Tavares 22539ec3b5 unpack_trees(): start with a fresh lstat cache
We really want to avoid relying on stale information.

Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:47:02 +01:00
Johannes Schindelin 0d58fef58a run-command: invalidate lstat cache after a command finished
In the previous commit, we intercepted calls to `rmdir()` to invalidate
the lstat cache in the successful case, so that the lstat cache could
not have the idea that a directory exists where there is none.

The same situation can arise, of course, when a separate process is
spawned (most notably, this is the case in `submodule_move_head()`).
Obviously, we cannot know whether a directory was removed in that
process, therefore we must invalidate the lstat cache afterwards.

Note: in contrast to `lstat_cache_aware_rmdir()`, we invalidate the
lstat cache even in case of an error: the process might have removed a
directory and still have failed afterwards.

Co-authored-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2021-02-12 15:47:02 +01:00
Matheus Tavares 684dd4c2b4 checkout: fix bug that makes checkout follow symlinks in leading path
Before checking out a file, we have to confirm that all of its leading
components are real existing directories. And to reduce the number of
lstat() calls in this process, we cache the last leading path known to
contain only directories. However, when a path collision occurs (e.g.
when checking out case-sensitive files in case-insensitive file
systems), a cached path might have its file type changed on disk,
leaving the cache on an invalid state. Normally, this doesn't bring
any bad consequences as we usually check out files in index order, and
therefore, by the time the cached path becomes outdated, we no longer
need it anyway (because all files in that directory would have already
been written).

But, there are some users of the checkout machinery that do not always
follow the index order. In particular: checkout-index writes the paths
in the same order that they appear on the CLI (or stdin); and the
delayed checkout feature -- used when a long-running filter process
replies with "status=delayed" -- postpones the checkout of some entries,
thus modifying the checkout order.

When we have to check out an out-of-order entry and the lstat() cache is
invalid (due to a previous path collision), checkout_entry() may end up
using the invalid data and thrusting that the leading components are
real directories when, in reality, they are not. In the best case
scenario, where the directory was replaced by a regular file, the user
will get an error: "fatal: unable to create file 'foo/bar': Not a
directory". But if the directory was replaced by a symlink, checkout
could actually end up following the symlink and writing the file at a
wrong place, even outside the repository. Since delayed checkout is
affected by this bug, it could be used by an attacker to write
arbitrary files during the clone of a maliciously crafted repository.

Some candidate solutions considered were to disable the lstat() cache
during unordered checkouts or sort the entries before passing them to
the checkout machinery. But both ideas include some performance penalty
and they don't future-proof the code against new unordered use cases.

Instead, we now manually reset the lstat cache whenever we successfully
remove a directory. Note: We are not even checking whether the directory
was the same as the lstat cache points to because we might face a
scenario where the paths refer to the same location but differ due to
case folding, precomposed UTF-8 issues, or the presence of `..`
components in the path. Two regression tests, with case-collisions and
utf8-collisions, are also added for both checkout-index and delayed
checkout.

Note: to make the previously mentioned clone attack unfeasible, it would
be sufficient to reset the lstat cache only after the remove_subtree()
call inside checkout_entry(). This is the place where we would remove a
directory whose path collides with the path of another entry that we are
currently trying to check out (possibly a symlink). However, in the
interest of a thorough fix that does not leave Git open to
similar-but-not-identical attack vectors, we decided to intercept
all `rmdir()` calls in one fell swoop.

This addresses CVE-2021-21300.

Co-authored-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
2021-02-12 15:47:02 +01:00
Junio C Hamano 59ec22464f Merge branch 'tb/ci-run-cocci-with-18.04' into maint
* tb/ci-run-cocci-with-18.04:
  .github/workflows/main.yml: run static-analysis on bionic
2021-02-11 13:57:36 -08:00
Taylor Blau d051ed77ee .github/workflows/main.yml: run static-analysis on bionic
GitHub Actions is transitioning workflow steps that run on
'ubuntu-latest' from 18.04 to 20.04 [1].

This works fine in all steps except the static-analysis one, since
Coccinelle isn't available on Ubuntu focal (it is only available in the
universe suite).

Until Coccinelle can be installed from 20.04's main suite, pin the
static-analysis build to run on 18.04, where it can be installed by
default.

[1]: https://github.com/actions/virtual-environments/issues/1816

Reported-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-08 14:38:07 -08:00
Junio C Hamano 773e25afc4 Git 2.30.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-08 14:05:55 -08:00
Junio C Hamano dadf9e519d Merge branch 'pb/ci-matrix-wo-shortcut' into maint
Our setting of GitHub CI test jobs were a bit too eager to give up
once there is even one failure found.  Tweak the knob to allow
other jobs keep running even when we see a failure, so that we can
find more failures in a single run.

* pb/ci-matrix-wo-shortcut:
  ci: do not cancel all jobs of a matrix if one fails
2021-02-08 14:05:55 -08:00
Junio C Hamano f20aeed235 Merge branch 'pb/blame-funcname-range-userdiff' into maint
Test fix.

* pb/blame-funcname-range-userdiff:
  annotate-tests: quote variable expansions containing path names
2021-02-08 14:05:55 -08:00
Junio C Hamano 6a7bf0ddb2 Merge branch 'jk/p5303-sed-portability-fix' into maint
A perf script was made more portable.

* jk/p5303-sed-portability-fix:
  p5303: avoid sed GNU-ism
2021-02-08 14:05:55 -08:00
Junio C Hamano f2d156dc48 Merge branch 'ab/branch-sort' into maint
The implementation of "git branch --sort" wrt the detached HEAD
display has always been hacky, which has been cleaned up.

* ab/branch-sort:
  branch: show "HEAD detached" first under reverse sort
  branch: sort detached HEAD based on a flag
  ref-filter: move ref_sorting flags to a bitfield
  ref-filter: move "cmp_fn" assignment into "else if" arm
  ref-filter: add braces to if/else if/else chain
  branch tests: add to --sort tests
  branch: change "--local" to "--list" in comment
2021-02-08 14:05:55 -08:00
Junio C Hamano 171675a6c5 Merge branch 'ma/more-opaque-lock-file' into maint
Code clean-up.

* ma/more-opaque-lock-file:
  read-cache: try not to peek into `struct {lock_,temp}file`
  refs/files-backend: don't peek into `struct lock_file`
  midx: don't peek into `struct lock_file`
  commit-graph: don't peek into `struct lock_file`
  builtin/gc: don't peek into `struct lock_file`
2021-02-08 14:05:55 -08:00
Junio C Hamano 6a20b9b9ef Merge branch 'dl/p4-encode-after-kw-expansion' into maint
Text encoding fix for "git p4".

* dl/p4-encode-after-kw-expansion:
  git-p4: fix syncing file types with pattern
2021-02-08 14:05:54 -08:00
Junio C Hamano f0e3c7f831 Merge branch 'ar/t6016-modernise' into maint
Test update.

* ar/t6016-modernise:
  t6016: move to lib-log-graph.sh framework
2021-02-08 14:05:54 -08:00
Junio C Hamano 3e52ab222a Merge branch 'zh/arg-help-format' into maint
Clean up option descriptions in "git cmd --help".

* zh/arg-help-format:
  builtin/*: update usage format
  parse-options: format argh like error messages
2021-02-08 14:05:54 -08:00
Junio C Hamano 71e83b2e7d Merge branch 'ma/doc-pack-format-varint-for-sizes' into maint
Doc update.

* ma/doc-pack-format-varint-for-sizes:
  pack-format.txt: document sizes at start of delta data
2021-02-08 14:05:54 -08:00
Junio C Hamano 5731e40409 Merge branch 'ma/t1300-cleanup' into maint
Code clean-up.

* ma/t1300-cleanup:
  t1300: don't needlessly work with `core.foo` configs
  t1300: remove duplicate test for `--file no-such-file`
  t1300: remove duplicate test for `--file ../foo`
2021-02-08 14:05:53 -08:00
Junio C Hamano 77341365cf Merge branch 'fc/t6030-bisect-reset-removes-auxiliary-files' into maint
A 3-year old test that was not testing anything useful has been
corrected.

* fc/t6030-bisect-reset-removes-auxiliary-files:
  test: bisect-porcelain: fix location of files
2021-02-08 14:05:53 -08:00
Junio C Hamano d5922333cb Prepare for 2.30.1
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-02-05 16:31:28 -08:00
Junio C Hamano b778c1eef5 Merge branch 'js/skip-dashed-built-ins-from-config-mak' into maint
Build fix.

* js/skip-dashed-built-ins-from-config-mak:
  SKIP_DASHED_BUILT_INS: respect `config.mak`
2021-02-05 16:31:28 -08:00
Junio C Hamano 93da9662d7 Merge branch 'jt/packfile-as-uri-doc' into maint
Doc fix for packfile URI feature.

* jt/packfile-as-uri-doc:
  Doc: clarify contents of packfile sent as URI
2021-02-05 16:31:28 -08:00