| Commit message (Collapse) | Author | Age | Files | Lines |
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"git --attr-source=<tree> cmd $args" is a new way to have any
command to read attributes not from the working tree but from the
given tree object.
* jc/attr-source-tree:
attr: teach "--attr-source=<tree>" global option to "git"
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Earlier, 47cfc9bd (attr: add flag `--source` to work with tree-ish,
2023-01-14) taught "git check-attr" the "--source=<tree>" option to
allow it to read attribute files from a tree-ish, but did so only
for the command. Just like "check-attr" users wanted a way to use
attributes from a tree-ish and not from the working tree files,
users of other commands (like "git diff") would benefit from the
same.
Undo most of the UI change the commit made, while keeping the
internal logic to read attributes from a given tree-ish. Expose the
internal logic via a new "--attr-source=<tree>" command line option
given to "git", so that it can be used with any git command that
runs as part of the main git process.
Additionally, add an environment variable GIT_ATTR_SOURCE that is set
when --attr-source is passed in, so that subprocesses use the same value
for the attributes source tree.
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git fetch" learned the "--porcelain" option that emits what it did
in a machine-parseable format.
* ps/fetch-output-format:
fetch: introduce machine-parseable "porcelain" output format
fetch: move option related variables into main function
fetch: lift up parsing of "fetch.output" config variable
fetch: introduce `display_format` enum
fetch: refactor calculation of the display table width
fetch: print left-hand side when fetching HEAD:foo
fetch: add a test to exercise invalid output formats
fetch: split out tests for output format
fetch: fix `--no-recurse-submodules` with multi-remote fetches
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The output of git-fetch(1) is obviously designed for consumption by
users, only: we neatly columnize data, we abbreviate reference names, we
print neat arrows and we don't provide information about actual object
IDs that have changed. This makes the output format basically unusable
in the context of scripted invocations of git-fetch(1) that want to
learn about the exact changes that the command performs.
Introduce a new machine-parseable "porcelain" output format that is
supposed to fix this shortcoming. This output format is intended to
provide information about every reference that is about to be updated,
the old object ID that the reference has been pointing to and the new
object ID it will be updated to. Furthermore, the output format provides
the same flags as the human-readable format to indicate basic conditions
for each reference update like whether it was a fast-forward update, a
branch deletion, a rejected update or others.
The output format is quite simple:
```
<flag> <old-object-id> <new-object-id> <local-reference>\n
```
We assume two conditions which are generally true:
- The old and new object IDs have fixed known widths and cannot
contain spaces.
- References cannot contain newlines.
With these assumptions, the output format becomes unambiguously
parseable. Furthermore, given that this output is designed to be
consumed by scripts, the machine-readable data is printed to stdout
instead of stderr like the human-readable output is. This is mostly done
so that other data printed to stderr, like error messages or progress
meters, don't interfere with the parseable data.
A notable ommission here is that the output format does not include the
remote from which a reference was fetched, which might be important
information especially in the context of multi-remote fetches. But as
such a format would require us to print the remote for every single
reference update due to parallelizable fetches it feels wasteful for the
most likely usecase, which is when fetching from a single remote.
In a similar spirit, a second restriction is that this cannot be used
with `--recurse-submodules`. This is because any reference updates would
be ambiguous without also printing the repository in which the update
happens.
Considering that both multi-remote and submodule fetches are user-facing
features, using them in conjunction with `--porcelain` that is intended
for scripting purposes is likely not going to be useful in the majority
of cases. With that in mind these restrictions feel acceptable. If
usecases for either of these come up in the future though it is easy
enough to add a new "porcelain-v2" format that adds this information.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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`store_updated_refs()` parses the remote reference for two purposes:
- It gets used as a note when writing FETCH_HEAD.
- It is passed through to `display_ref_update()` to display
updated references in the following format:
```
* branch master -> master
```
In most cases, the parsed remote reference is the prettified reference
name and can thus be used for both cases. But if the remote reference is
HEAD, the parsed remote reference becomes empty. This is intended when
we write the FETCH_HEAD, where we skip writing the note in that case.
But when displaying the updated references this leads to inconsistent
output where the left-hand side of reference updates is missing in some
cases:
```
$ git fetch origin HEAD HEAD:explicit-head :implicit-head main
From https://github.com/git/git
* branch HEAD -> FETCH_HEAD
* [new ref] -> explicit-head
* [new ref] -> implicit-head
* branch main -> FETCH_HEAD
```
This behaviour has existed ever since the table-based output has been
introduced for git-fetch(1) via 165f390250 (git-fetch: more terse fetch
output, 2007-11-03) and was never explicitly documented either in the
commit message or in any of our tests. So while it may not be a bug per
se, it feels like a weird inconsistency and not like it was a concious
design decision.
The logic of how we compute the remote reference name that we ultimately
pass to `display_ref_update()` is not easy to follow. There are three
different cases here:
- When the remote reference name is "HEAD" we set the remote
reference name to the empty string. This is the case that causes
the left-hand side to go missing, where we would indeed want to
print "HEAD" instead of the empty string. This is what
`prettify_refname()` would return.
- When the remote reference name has a well-known prefix then we
strip this prefix. This matches what `prettify_refname()` does.
- Otherwise, we keep the fully qualified reference name. This also
matches what `prettify_refname()` does.
As the return value of `prettify_refname()` would do the correct thing
for us in all three cases, we can thus fix the inconsistency by passing
through the full remote reference name to `display_ref_update()`, which
learns to call `prettify_refname()`. At the same time, this also
simplifies the code a bit.
Note that this patch also changes formatting of the block that computes
the "kind" (which is the category like "branch" or "tag") and "what"
(which is the prettified reference name like "master" or "v1.0")
variables. This is done on purpose so that it is part of the diff,
hopefully making the change easier to comprehend.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add a testcase that exercises the logic when an invalid output format is
passed via the `fetch.output` configuration.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We're about to introduce a new porcelain mode for the output of
git-fetch(1). As part of that we'll be introducing a set of new tests
that only relate to the output of this command.
Split out tests that exercise the output format of git-fetch(1) so that
it becomes easier to verify this functionality as a standalone unit. As
the tests assume that the default branch is called "main" we set up the
corresponding GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME environment variable
accordingly.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When running `git fetch --no-recurse-submodules`, the exectation is that
we don't fetch any submodules. And while this works for fetches of a
single remote, it doesn't when fetching multiple remotes at once. The
result is that we do recurse into submodules even though the user has
explicitly asked us not to.
This is because while we pass on `--recurse-submodules={yes,on-demand}`
if specified by the user, we don't pass on `--no-recurse-submodules` to
the subprocess spawned to perform the submodule fetch.
Fix this by also forwarding this flag as expected.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Teach "diff-files" not to expand sparse-index unless needed.
* sl/diff-files-sparse:
diff-files: integrate with sparse index
t1092: add tests for `git diff-files`
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Remove full index requirement for `git diff-files`. Refactor the
ensure_expanded and ensure_not_expanded functions by introducing a
common helper function, ensure_index_state. Add test to ensure the index
is no expanded in `git diff-files`.
The `p2000` tests demonstrate a ~96% execution time reduction for 'git
diff-files' and a ~97% execution time reduction for 'git diff-files'
for a file using a sparse index:
Test before after
-----------------------------------------------------------------------
2000.94: git diff-files (full-v3) 0.09 0.08 -11.1%
2000.95: git diff-files (full-v4) 0.09 0.09 +0.0%
2000.96: git diff-files (sparse-v3) 0.52 0.02 -96.2%
2000.97: git diff-files (sparse-v4) 0.51 0.02 -96.1%
2000.98: git diff-files -- f2/f4/a (full-v3) 0.06 0.07 +16.7%
2000.99: git diff-files -- f2/f4/a (full-v4) 0.08 0.08 +0.0%
2000.100: git diff-files -- f2/f4/a (sparse-v3) 0.46 0.01 -97.8%
2000.101: git diff-files -- f2/f4/a (sparse-v4) 0.51 0.02 -96.1%
Signed-off-by: Shuqi Liang <cheskaqiqi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before integrating the 'git diff-files' builtin with the sparse index
feature, add tests to t1092-sparse-checkout-compatibility.sh to ensure
it currently works with sparse-checkout and will still work with sparse
index after that integration.
When adding tests against a sparse-checkout definition, we test two
modes: all changes are within the sparse-checkout cone and some changes
are outside the sparse-checkout cone.
In order to have staged changes outside of the sparse-checkout cone,
make a directory called 'folder1' and copy `a` into 'folder1/a'.
'folder1/a' is identical to `a` in the base commit. These make
'folder1/a' in the index, while leaving it outside of the
sparse-checkout definition. Change content inside 'folder1/a' in order
to test 'folder1/a' being present on-disk with modifications.
Signed-off-by: Shuqi Liang <cheskaqiqi@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Allow git forges to disable replace-refs feature while running "git
merge-tree".
* ds/merge-tree-use-config:
merge-tree: load default git config
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The 'git merge-tree' command handles creating root trees for merges
without using the worktree. This is a critical operation in many Git
hosts, as they typically store bare repositories.
This builtin does not load the default Git config, which can have
several important ramifications.
In particular, one config that is loaded by default is
core.useReplaceRefs. This is typically disabled in Git hosts due to
the ability to spoof commits in strange ways.
Since this config is not loaded specifically during merge-tree, users
were previously able to use refs/replace/ references to make pull
requests that looked valid but introduced malicious content. The
resulting merge commit would have the correct commit history, but the
malicious content would exist in the root tree of the merge.
The fix is simple: load the default Git config in cmd_merge_tree().
This may also fix other behaviors that are effected by reading default
config. The only possible downside is a little extra computation time
spent reading config. The config parsing is placed after basic argument
parsing so it does not slow down usage errors.
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test fix.
* ar/test-cleanup-unused-file-creation:
test: rev-parse-upstream: add missing cmp
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It seems pretty clear 5236fce6b4 (t1507: stop losing return codes of git
commands, 2019-12-20) missed a test_cmp.
Cc: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Retire "verbose" helper function from the test framework.
* jk/test-verbose-no-more:
t: drop "verbose" helper function
t7001: use "ls-files --format" instead of "cut"
t7001: avoid git on upstream of pipe
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We have a small helper function called "verbose", with the idea that you
can write:
verbose foo
to get a message to stderr when the "foo" command fails, even if it does
not produce any output itself. This goes back to 8ad1652418 (t5304: use
helper to report failure of "test foo = bar", 2014-10-10). It does work,
but overall it has not been a big success for two reasons:
1. Test writers have to remember to put it there (and the resulting
test code is longer as a result).
2. It doesn't handle the opposite case (we expect "foo" to fail, but
it succeeds), leading to inconsistencies in tests (which you can
see in many hunks of this patch, e.g. ones involving "has_cr").
Most importantly, we added a136f6d8ff (test-lib.sh: support -x option
for shell-tracing, 2014-10-10) at the same time, and it does roughly the
same thing. The output is not quite as succinct as "verbose", and you
have to watch out for stray shell-traces ending up in stderr. But it
solves both of the problems above, and has clearly become the preferred
tool.
Let's consider the "verbose" function a failed experiment and remove the
last few callers (which are all many years old, and have been dwindling
as we remove them from scripts we touch for other reasons). It will be
one less thing for new test writers to see and wonder if they should be
using themselves.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since ls-files recently learned a "--format" option, we can use that
rather than asking for all of "--stage" and then pulling out the bits we
want with "cut". That's simpler and avoids two extra processes (one for
cut, and one for the subshell to hold the intermediate result).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We generally avoid git on the left-hand side of a pipe, because it loses
the exit code of the command (and thus we'd miss things like segfaults
or unexpected failures). In the cases in t7001, we wouldn't expect
failures (they are just inspecting the repository state, and are not the
main point of the test), but it doesn't hurt to be careful.
In all but one case here we're piping "ls-files --stage" to cut off the
pathname (since we compare entries before and after moving). Let's pull
that into a helper function to avoid repeating the slightly awkward
replacement.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git push --all" gained an alias "git push --branches".
* tl/push-branches-is-an-alias-for-all:
t5583: fix shebang line
push: introduce '--branches' option
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The shebang was missing the leading `/` character, resulting in:
$ ./t5583-push-branches.sh
bash: ./t5583-push-branches.sh: cannot execute: required file not found
Add the missing character so the test can run.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The '--all' option of git-push built-in cmd support to push all branches
(refs under refs/heads) to remote. Under the usage, a user can easlily
work in some scenarios, for example, branches synchronization and batch
upload.
The '--all' was introduced for a long time, meanwhile, git supports to
customize the storage location under "refs/". when a new git user see
the usage like, 'git push origin --all', we might feel like we're
pushing _all_ the refs instead of just branches without looking at the
documents until we found the related description of it or '--mirror'.
To ensure compatibility, we cannot rename '--all' to another name
directly, one way is, we can try to add a new option '--heads' which be
identical with the functionality of '--all' to let the user understand
the meaning of representation more clearly. Actually, We've more or less
named options this way already, for example, in 'git-show-ref' and 'git
ls-remote'.
At the same time, we fix a related issue about the wrong help
information of '--all' option in code and add some test cases in
t5523, t5543 and t5583.
Signed-off-by: Teng Long <dyroneteng@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A test fix.
* jc/t9800-fix-use-of-show-s-raw:
t9800: correct misuse of 'show -s --raw' in a test
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There is $(git show -s --raw --pretty=format:%at HEAD) in this test
that is meant to grab the author time of the commit. We used to
have a bug in the command line option parser of the diff family of
commands, where "show -s --raw" was identical to "show -s".
With the "-s" bug fixed, "show -s --raw" would mean the same thing
as "show --raw", i.e. show the output from the diff machinery in the
"raw" format. And this test will start failing, so fix it before
that happens.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git diff --dirstat" leaked memory, which has been plugged.
* jc/dirstat-plug-leaks:
diff: plug leaks in dirstat
diff: refactor common tail part of dirstat computation
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The array of dirstat_file contained in the dirstat_dir structure is
not freed after the processing ends. Unfortunately, the member that
points at the array, .files, is incremented as the gather_dirstat()
function recursively walks it, and this needs to be plugged by
remembering the beginning of the array before gather_dirstat() mucks
with it and freeing it after we are done.
We can mark t4047 as leak-free. t4000, which is marked as
leak-free, now can exercise dirstat in it, which will happen next.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git fsck" learned to detect bit-flip breakages in the reachability
bitmap files.
* ds/fsck-bitmap:
fsck: use local repository
fsck: verify checksums of all .bitmap files
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If a filesystem-level corruption occurs in a .bitmap file, Git can react
poorly. This could take the form of a run-time error due to failing to
parse an EWAH bitmap or be more subtle such as returning the wrong set
of objects to a fetch or clone.
A natural first response to either of these kinds of errors is to run
'git fsck' to see if any files are corrupt. This currently ignores all
.bitmap files.
Add checks to 'git fsck' for all .bitmap files that are currently
associated with a multi-pack-index or pack file. Verify their checksums
using the hashfile API.
We iterate through all multi-pack-indexes and pack-files to be sure to
check all .bitmap files, not just the one that would be read by the
process. For example, a multi-pack-index bitmap overrules a pack-bitmap.
However, if the multi-pack-index is removed, the pack-bitmap may be
selected instead. Be thorough to include every file that could become
active in such a way. This includes checking files in alternates.
There is potential that we could extend this effort to check the
structure of the reachability bitmaps themselves, but it is very
expensive to do so. At minimum, it's as expensive as generating the
bitmaps in the first place, and that's assuming that we don't use the
trivial algorithm of verifying each bitmap individually. The trivial
algorithm will result in quadratic behavior (number of objects times
number of bitmapped commits) while the bitmap building operation
constructs a lattice of commits to build bitmaps incrementally and then
generate the final bitmaps from a subset of those commits.
If we were to extend 'git fsck' to check .bitmap file contents more
closely like this, then we would likely want to hide it behind an option
that signals the user is more willing to do expensive operations such as
this.
For testing, set up a repository with a pack-bitmap _and_ a
multi-pack-index bitmap. This requires some file movement to avoid
deleting the pack-bitmap during the repack that creates the
multi-pack-index bitmap. We can then verify that 'git fsck' is checking
all files, not just the "active" bitmap.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test updates.
* ar/config-count-tests-updates:
t1300: add tests for missing keys
t1300: check stderr for "ignores pairs" tests
t1300: drop duplicate test
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There are several tests in t1300-config.sh that validate failing
invocations of "git config". However, there are no tests that check
what happens when "git config" is asked to retrieve a value for a
missing key.
Add tests that check this for various combinations of "<section>.<key>"
and "<section>.<subsection>.<key>".
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Tests "git config ignores pairs ..." in t1300-config.sh validate that
"git config" ignores various kinds of supplied pairs of environment
variables GIT_CONFIG_KEY_* GIT_CONFIG_VALUE_* depending on
GIT_CONFIG_COUNT. By "ignores" here we mean that "git config" abides by
the value of environment variable GIT_CONFIG_COUNT and doesn't use
key-value pairs outside of the supplied GIT_CONFIG_COUNT when trying to
produce a value for config key "pair.one".
These tests also validate that "git config" doesn't complain about
mismatched environment variables to standard error. This is validated
by redirecting the standard error to a file called "error" and asserting
that it is empty. However, two of these tests incorrectly redirect to
standard output while calling the file "error", and test 'git config
ignores pairs exceeding count' doesn't validate standard error at all.
Fix these tests by redirecting standard error to file "error" and
asserting its emptiness.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There are two almost identical tests called 'git config ignores pairs
with zero count' in file t1300-config.sh. Drop the first of these and
keep the one that contains more assertions.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The tracing mechanism learned to notice and report when
auto-discovered bare repositories are being used, as allowing so
without explicitly stating the user intends to do so (with setting
GIT_DIR for example) can be used with social engineering as an
attack vector.
* gc/trace-bare-repo-setup:
setup: trace bare repository setups
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safe.bareRepository=explicit is a safer default mode of operation, since
it guards against the embedded bare repository attack [1]. Most end
users don't use bare repositories directly, so they should be able to
set safe.bareRepository=explicit, with the expectation that they can
reenable bare repositories by specifying GIT_DIR or --git-dir.
However, the user might use a tool that invokes Git on bare repositories
without setting GIT_DIR (e.g. "go mod" will clone bare repositories
[2]), so even if a user wanted to use safe.bareRepository=explicit, it
wouldn't be feasible until their tools learned to set GIT_DIR.
To make this transition easier, add a trace message to note when we
attempt to set up a bare repository without setting GIT_DIR. This allows
users and tool developers to audit which of their tools are problematic
and report/fix the issue. When they are sufficiently confident, they
would switch over to "safe.bareRepository=explicit".
Note that this uses trace2_data_string(), which isn't supported by the
"normal" GIT_TRACE2 target, only _EVENT or _PERF.
[1] https://lore.kernel.org/git/kl6lsfqpygsj.fsf@chooglen-macbookpro.roam.corp.google.com/
[2] https://go.dev/ref/mod
Signed-off-by: Glen Choo <chooglen@google.com>
Signed-off-by: Josh Steadmon <steadmon@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git send-email" learned "--header-cmd=<cmd>" that can inject
arbitrary e-mail header lines to the outgoing messages.
* mc/send-email-header-cmd:
send-email: detect empty blank lines in command output
send-email: add --header-cmd, --no-header-cmd options
send-email: extract execute_cmd from recipients_cmd
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The email format does not allow blank lines in headers; detect such
input and report it as malformed and add a test for it.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Sometimes, adding a header different than CC or TO is desirable; for
example, when using Debbugs, it is best to use 'X-Debbugs-Cc' headers
to keep people in CC; this is an example use case enabled by the new
'--header-cmd' option.
The header unfolding logic is extracted to a subroutine so that it can
be reused; a test is added for coverage.
Signed-off-by: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Error messages given when working on an unborn branch that is
checked out in another worktree have been improved.
* rj/branch-unborn-in-other-worktrees:
branch: avoid unnecessary worktrees traversals
branch: rename orphan branches in any worktree
branch: description for orphan branch errors
branch: use get_worktrees() in copy_or_rename_branch()
branch: test for failures while renaming branches
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In cfaff3aac (branch -m: allow renaming a yet-unborn branch, 2020-12-13)
we added support for renaming an orphan branch when that branch is
checked out in the current worktree.
Let's also allow renaming an orphan branch checked out in a worktree
different than the current one.
Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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In bcfc82bd48 (branch: description for non-existent branch errors,
2022-10-08) we checked the HEAD in the current worktree to detect if the
branch to operate with is an orphan branch, so as to avoid the confusing
error: "No branch named...".
If we are asked to operate with an orphan branch in a different working
tree than the current one, we need to check the HEAD in that different
working tree.
Let's extend the check we did in bcfc82bd48, to check the HEADs in all
worktrees linked to the current repository, using the helper introduced
in 31ad6b61bd (branch: add branch_checked_out() helper, 2022-06-15).
The helper, branch_checked_out(), does its work obtaining internally a
list of worktrees linked to the current repository. Obtaining that list
is not a lightweight work because it implies disk access.
In copy_or_rename_branch() we already have a list of worktrees. Let's
use that already obtained list, and avoid using here the helper.
Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When we introduced replace_each_worktree_head_symref() in 70999e9cec
(branch -m: update all per-worktree HEADs, 2016-03-27), we implemented a
best effort approach.
If we are asked to rename a branch that is simultaneously checked out in
multiple worktrees, we try to update all of those worktrees. If we fail
updating any of them, we die() as a signal that something has gone
wrong. However, at this point, the branch ref has already been renamed
and also updated the HEADs of the successfully updated worktrees.
Despite returning an error, we do not try to rollback those changes.
Let's add a test to notice if we change this behavior in the future.
In next commits we will change replace_each_worktree_head_symref() to
work more closely with its only caller, copy_or_rename_branch(). Let's
move the former closer to its caller, to facilitate those changes.
Signed-off-by: Rubén Justo <rjusto@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The credential subsystem learns to help OAuth framework.
* mh/credential-oauth-refresh-token:
credential: new attribute oauth_refresh_token
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Git authentication with OAuth access token is supported by every popular
Git host including GitHub, GitLab and BitBucket [1][2][3]. Credential
helpers Git Credential Manager (GCM) and git-credential-oauth generate
OAuth credentials [4][5]. Following RFC 6749, the application prints a
link for the user to authorize access in browser. A loopback redirect
communicates the response including access token to the application.
For security, RFC 6749 recommends that OAuth response also includes
expiry date and refresh token [6]. After expiry, applications can use
the refresh token to generate a new access token without user
reauthorization in browser. GitLab and BitBucket set the expiry at two
hours [2][3]. (GitHub doesn't populate expiry or refresh token.)
However the Git credential protocol has no attribute to store the OAuth
refresh token (unrecognised attributes are silently discarded). This
means that the user has to regularly reauthorize the helper in browser.
On a browserless system, this is particularly intrusive, requiring a
second device.
Introduce a new attribute oauth_refresh_token. This is especially
useful when a storage helper and a read-only OAuth helper are configured
together. Recall that `credential fill` calls each helper until it has a
non-expired password.
```
[credential]
helper = storage # eg. cache or osxkeychain
helper = oauth
```
The OAuth helper can use the stored refresh token forwarded by
`credential fill` to generate a fresh access token without opening the
browser. See
https://github.com/hickford/git-credential-oauth/pull/3/files
for an implementation tested with this patch.
Add support for the new attribute to credential-cache. Eventually, I
hope to see support in other popular storage helpers.
Alternatives considered: ask helpers to store all unrecognised
attributes. This seems excessively complex for no obvious gain.
Helpers would also need extra information to distinguish between
confidential and non-confidential attributes.
Workarounds: GCM abuses the helper get/store/erase contract to store the
refresh token during credential *get* as the password for a fictitious
host [7] (I wrote this hack). This workaround is only feasible for a
monolithic helper with its own storage.
[1] https://github.blog/2012-09-21-easier-builds-and-deployments-using-git-over-https-and-oauth/
[2] https://docs.gitlab.com/ee/api/oauth2.html#access-git-over-https-with-access-token
[3] https://support.atlassian.com/bitbucket-cloud/docs/use-oauth-on-bitbucket-cloud/#Cloning-a-repository-with-an-access-token
[4] https://github.com/GitCredentialManager/git-credential-manager
[5] https://github.com/hickford/git-credential-oauth
[6] https://datatracker.ietf.org/doc/html/rfc6749#section-5.1
[7] https://github.com/GitCredentialManager/git-credential-manager/blob/66b94e489ad8cc1982836355493e369770b30211/src/shared/GitLab/GitLabHostProvider.cs#L207
Signed-off-by: M Hickford <mirth.hickford@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test cleanup.
* ar/test-cleanup-unused-file-creation-part2:
t2019: don't create unused files
t1502: don't create unused files
t1450: don't create unused files
t1300: don't create unused files
t1300: fix config file syntax error descriptions
t0300: don't create unused file
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Tests in t2019-checkout-ambiguous-ref.sh redirect two invocations of
"git checkout" to files "stdout" and "stderr". Several assertions are
made using file "stderr". File "stdout", however, is unused.
Don't redirect standard output of "git checkout" to file "stdout" in
t2019-checkout-ambiguous-ref.sh to avoid creating unnecessary files.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three tests in file t1502-rev-parse-parseopt.sh use three redirections
with invocation of "git rev-parse --parseopt --". All three tests
redirect standard output to file "out" and file "spec" to standard
input. Two of the tests redirect standard output a second time to file
"actual", and the third test redirects standard error to file "err".
These tests check contents of files "actual" and "err", but don't use
the files named "out" for assertions. The two tests that redirect to
standard output twice might also be confusing to the reader.
Don't redirect standard output of "git rev-parse" to file "out" in
t1502-rev-parse-parseopt.sh to avoid creating unnecessary files.
Acked-by: Øystein Walle <oystwa@gmail.com>
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test 'fsck error and recovery on invalid object type' in file
t1450-fsck.sh redirects output of a failing "git fsck" invocation to
files "out" and "err" to assert presence of error messages in the output
of the command. Commit 31deb28f5e (fsck: don't hard die on invalid
object types, 2021-10-01) changed the way assertions in this test are
performed. The test doesn't compare the whole standard error with
prepared file "err.expect" and it doesn't assert that standard output is
empty.
Don't create unused files "err.expect" and "out" in test 'fsck error and
recovery on invalid object type'.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three tests in t1300-config.sh check that "git config --get" barfs when
syntax errors are present in the config file. The tests redirect
standard output and standard error of "git config --get" to files,
"actual" and "error" correspondingly. They assert presence of an error
message in file "error". However, these tests don't use file "actual"
for assertions.
Don't redirect standard output of "git config --get" to file "actual" in
t1300-config.sh to avoid creating unnecessary files.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Three tests in t1300-config.sh check that "git config --get" barfs when
the config file contains various syntax errors: key=value pair without
equals sign, broken section line, and broken value string. The sample
config files include a comment describing the kind of broken syntax.
This description seems to have been copy-pasted from the "broken section
line" sample to the other two samples.
Fix descriptions of broken config file syntax in samples used in
t1300-config.sh.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Test 'credential config with partial URLs' in t0300-credentials.sh
contains three "git credential fill" invocations. For two of the
invocations, the test asserts presence or absence of string "yep" in the
standard output. For the third test it checks for an error message in
standard error.
Don't redirect standard output of "git credential" to file "stdout" in
t0300-credentials.sh to avoid creating an unnecessary file when only
standard error is checked.
Signed-off-by: Andrei Rybak <rybak.a.v@gmail.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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