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Define the logical elements of a "bundle list", data structure to
store them in-core, format to transfer them, and code to parse
them.
* ds/bundle-uri-3:
bundle-uri: suppress stderr from remote-https
bundle-uri: quiet failed unbundlings
bundle: add flags to verify_bundle()
bundle-uri: fetch a list of bundles
bundle: properly clear all revision flags
bundle-uri: limit recursion depth for bundle lists
bundle-uri: parse bundle list in config format
bundle-uri: unit test "key=value" parsing
bundle-uri: create "key=value" line parsing
bundle-uri: create base key-value pair parsing
bundle-uri: create bundle_list struct and helpers
bundle-uri: use plain string in find_temp_filename()
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Amend the -h output to match that of the *.txt output, the differences
were fairly small. In the case of "[<options>]" we only have a few of
them, so let's exhaustively list them as in the *.txt.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Avoid repeating the "-h" output for the "git bundle" command, and
instead define the usage of each subcommand with macros, so that the
"-h" output for the command itself can re-use those definitions. See
[1], [2] and [3] for prior art using the same pattern.
1. b25b727494f (builtin/multi-pack-index.c: define common usage with a
macro, 2021-03-30)
2. 8757b35d443 (commit-graph: define common usage with a macro,
2021-08-23)
3. 1e91d3faf6c (reflog: move "usage" variables and use macros,
2022-03-17)
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix indentation issues introduced with 73c3253d75e (bundle: framework
for options before bundle file, 2019-11-10), and carried forward in
some subsequent commits.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When downloading a list of bundles in "all" mode, Git has no
understanding of the dependencies between the bundles. Git attempts to
unbundle the bundles in some order, but some may not pass the
verify_bundle() step because of missing prerequisites. This is passed as
error messages to the user, even when they eventually succeed in later
attempts after their dependent bundles are unbundled.
Add a new VERIFY_BUNDLE_QUIET flag to verify_bundle() that avoids the
error messages from the missing prerequisite commits. The method still
returns the number of missing prerequisit commits, allowing callers to
unbundle() to notice that the bundle failed to apply.
Use this flag in bundle-uri.c and test that the messages go away for
'git clone --bundle-uri' commands.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The verify_bundle() method has a 'verbose' option, but we will want to
extend this method to have more granular control over its output. First,
replace this 'verbose' option with a new 'flags' option with a single
possible value: VERIFY_BUNDLE_VERBOSE.
Signed-off-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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'git bundle' parses its subcommands with a couple of if-else if
statements. parse-options has just learned to parse subcommands, so
let's use that facility instead, with the benefits of shorter code,
handling missing or unknown subcommands, and listing subcommands for
Bash completion.
Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fixing this small memory leak in cmd_bundle_create() gets
"t5607-clone-bundle.sh" closer to passing under SANITIZE=leak.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Doc update.
* ab/bundle-remove-verbose-option:
bundle: remove ignored & undocumented "--verbose" flag
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In 73c3253d75e (bundle: framework for options before bundle file,
2019-11-10) the "git bundle" command was refactored to use
parse_options(). In that refactoring it started understanding the
"--verbose" flag before the subcommand, e.g.:
git bundle --verbose verify --quiet
However, nothing ever did anything with this "verbose" variable, and
the change wasn't documented. It appears to have been something that
escaped the lab, and wasn't flagged by reviewers at the time. Let's
just remove it.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The "unbundle" command added in 2e0afafebd8 (Add git-bundle: move
objects and references by archive, 2007-02-22) did not show progress
output, even though the underlying API learned how to show progress in
be042aff24c (Teach progress eye-candy to fetch_refs_from_bundle(),
2011-09-18).
Now we'll show "Unbundling objects" using the new --progress-title
option to "git index-pack", to go with its existing "Receiving
objects" and "Indexing objects" (which it shows when invoked with
"--stdin", and with a pack file, respectively).
Unlike "git bundle create" we don't handle "--quiet" here, nor
"--all-progress" and "--all-progress-implied". Those are all specific
to "create" (and "verify", in the case of "--quiet").
The structure of the existing documentation is a bit unclear, e.g. the
documentation for the "--quiet" option added in
79862b6b77c (bundle-create: progress output control, 2019-11-10) only
describes how it works for "create", and not for "verify". That and
other issues in it should be fixed, but I'd like to avoid untangling
that mess right now. Let's just support the standard "--no-progress"
implicitly here, and leave cleaning up the general behavior of "git
bundle" for a later change.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Since the "flags" parameter was added in be042aff24c (Teach progress
eye-candy to fetch_refs_from_bundle(), 2011-09-18) there's never been
more than the one flag: BUNDLE_VERBOSE.
Let's have the only caller who cares about that pass "-v" itself
instead through new "extra_index_pack_args" parameter. The flexibility
of being able to pass arbitrary arguments to "unbundle" will be used
in a subsequent commit.
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move away from the "struct ref_list" in bundle.c in favor of the
almost identical string-list.c API.
That API fits this use-case perfectly, but did not exist in its
current form when this code was added in 2e0afafebd (Add git-bundle:
move objects and references by archive, 2007-02-22), with hindsight we
could have used the path-list API, which later got renamed to
string-list. See 8fd2cb4069 (Extract helper bits from
c-merge-recursive work, 2006-07-25)
We need to change "name" to "string" and "oid" to "util" to make this
conversion, but other than that the APIs are pretty much identical for
what bundle.c made use of.
Let's also replace the memset(..,0,...) pattern with a more idiomatic
"INIT" macro, and finally add a *_release() function so to free the
allocated memory.
Before this the add_to_ref_list() would leak memory, now e.g. "bundle
list-heads" reports no memory leaks at all under valgrind.
In the bundle_header_init() function we're using a clever trick to
memcpy() what we'd get from the corresponding
BUNDLE_HEADER_INIT. There is a concurrent series to make use of that
pattern more generally, see [1].
1. https://lore.kernel.org/git/cover-0.5-00000000000-20210701T104855Z-avarab@gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Fix a memory leak from the prefix_filename() function introduced with
its use in 3b754eedd5 (bundle: use prefix_filename with bundle path,
2017-03-20).
As noted in that commit the leak was intentional as a part of being
sloppy about freeing resources just before we exit, I'm changing this
because I'll be fixing other memory leaks in the bundle API (including
the library version) in subsequent commits. It's easier to reason
about those fixes if valgrind runs cleanly at the end without any
leaks whatsoever.
An earlier version of this change[1] went out of its way to not leak
memory on the die() codepaths here, but doing so will only avoid
reports of potential leaks under heap-only leak trackers such as
valgrind, not the SANITIZE=leak mode.
Avoiding those leaks as well might be useful to enable us to run
cleanly under the likes of valgrind in the future. But for now the
relative verbosity of the resulting code, and the fact that we don't
have some valgrind or SANITIZE=leak mode as part of our CI (it's only
run ad-hoc, see [2]), means we're not worrying about that for now.
1. https://lore.kernel.org/git/87v95vdxrc.fsf@evledraar.gmail.com/
2. https://lore.kernel.org/git/87czsv2idy.fsf@evledraar.gmail.com/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The final leg of SHA-256 transition.
* bc/sha-256-part-3: (39 commits)
t: remove test_oid_init in tests
docs: add documentation for extensions.objectFormat
ci: run tests with SHA-256
t: make SHA1 prerequisite depend on default hash
t: allow testing different hash algorithms via environment
t: add test_oid option to select hash algorithm
repository: enable SHA-256 support by default
setup: add support for reading extensions.objectformat
bundle: add new version for use with SHA-256
builtin/verify-pack: implement an --object-format option
http-fetch: set up git directory before parsing pack hashes
t0410: mark test with SHA1 prerequisite
t5308: make test work with SHA-256
t9700: make hash size independent
t9500: ensure that algorithm info is preserved in config
t9350: make hash size independent
t9301: make hash size independent
t9300: use $ZERO_OID instead of hard-coded object ID
t9300: abstract away SHA-1-specific constants
t8011: make hash size independent
...
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Currently we detect the hash algorithm in use by the length of the
object ID. This is inelegant and prevents us from using a different
hash algorithm that is also 256 bits in length.
Since we cannot extend the v2 format in a backward-compatible way, let's
add a v3 format, which is identical, except for the addition of
capabilities, which are prefixed by an at sign. We add "object-format"
as the only capability and reject unknown capabilities, since we do not
have a network connection and therefore cannot negotiate with the other
side.
For compatibility, default to the v2 format for SHA-1 and require v3
for SHA-256.
In t5510, always use format v3 so we can be sure we produce consistent
results across hash algorithms. Since head -n N lists the top N lines
instead of the Nth line, let's run our output through sed to normalize
it and compare it against a fixed value, which will make sure we get
exactly what we're expecting.
Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We eventually want to drop the argv_array name and just use strvec
consistently. There's no particular reason we have to do it all at once,
or care about interactions between converted and unconverted bits.
Because of our preprocessor compat layer, the names are interchangeable
to the compiler (so even a definition and declaration using different
names is OK).
This patch converts all of the files in builtin/ to keep the diff to a
manageable size.
The conversion was done purely mechanically with:
git ls-files '*.c' '*.h' |
xargs perl -i -pe '
s/ARGV_ARRAY/STRVEC/g;
s/argv_array/strvec/g;
'
and then selectively staging files with "git add builtin/". We'll deal
with any indentation/style fallouts separately.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This requires updating #include lines across the code-base, but that's
all fairly mechanical, and was done with:
git ls-files '*.c' '*.h' |
xargs perl -i -pe 's/argv-array.h/strvec.h/'
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Add --quiet to git-bundle verify as proposed on the mailing list [1].
Reference: https://www.mail-archive.com/git@vger.kernel.org/msg182844.html <robbat2-20190806T191156-796782357Z@orbis-terrarum.net>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Support the progress output options from pack-objects in git-bundle's
create subcommand. Most notably, this provides --quiet as requested on
the git mailing list per [1]
Reference: https://www.mail-archive.com/git@vger.kernel.org/msg182844.html <robbat2-20190806T191156-796782357Z@orbis-terrarum.net>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Make it possible for any of the git-bundle subcommands to include
options:
- before the sub-command
- after the sub-command, before the bundle filename
There is an immediate gain in support for help with all of the
sub-commands, where 'git bundle list-heads -h' previously returned an
error.
Downside here is an increase in code duplication that cannot be
trivially avoided short of shared global static options.
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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There's no need to pass a header struct to create_bundle(); it writes
the header information directly to a descriptor (and does not report
back details to the caller).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We may take the path to a bundle file as an argument, and
need to adjust the filename based on the prefix we
discovered while setting up the git directory. We do so
manually into a fixed-size buffer, but using
prefix_filename() is the normal way.
Besides being more concise, there are two subtle
improvements:
1. The original inserted a "/" between the two paths, even
though the "prefix" argument always has the "/"
appended. That means that:
cd subdir && git bundle verify ../foo.bundle
was looking at (and reporting) subdir//../foo.bundle.
Harmless, but ugly. Using prefix_filename() gets this
right.
2. The original checked for an absolute path by looking
for a leading '/'. It should have been using
is_absolute_path(), which also covers more cases on
Windows (backslashes and dos drive prefixes).
But it's easier still to just pass the name to
prefix_filename(), which handles this case
automatically.
Note that we'll just leak the resulting buffer in the name
of simplicity, since it needs to last through the duration
of the program anyway.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `verify` and `create` subcommands of the bundle builtin do
not properly verify the command line arguments that have been
passed in. While the `verify` subcommand accepts an arbitrary
amount of ignored arguments the `create` subcommand does not
complain about being passed too few arguments, resulting in a
bogus call to `git rev-list`. Fix these errors by verifying that
the correct amount of arguments has been passed in.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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With the usual "git" transport, a large-ish transfer with "git fetch" and
"git pull" give progress eye-candy to avoid boring users. However, not
when they are reading from a bundle. I.e.
$ git pull ../git-bundle.bndl master
This teaches bundle.c:unbundle() to give "-v" option to index-pack and
tell it to give progress bar when transport decides it is necessary.
The operation in the other direction, "git bundle create", could also
learn to honor --quiet but that is a separate issue.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Štěpán Němec <stepnem@gmail.com>
Acked-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Without this change, “git -p bundle” does not always
respect the repository-local “[core] pager” setting.
It is hard to notice because subcommands other than
“git bundle unbundle” do not produce much output.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This shrinks the top-level directory a bit, and makes it much more
pleasant to use auto-completion on the thing. Instead of
[torvalds@nehalem git]$ em buil<tab>
Display all 180 possibilities? (y or n)
[torvalds@nehalem git]$ em builtin-sh
builtin-shortlog.c builtin-show-branch.c builtin-show-ref.c
builtin-shortlog.o builtin-show-branch.o builtin-show-ref.o
[torvalds@nehalem git]$ em builtin-shor<tab>
builtin-shortlog.c builtin-shortlog.o
[torvalds@nehalem git]$ em builtin-shortlog.c
you get
[torvalds@nehalem git]$ em buil<tab> [type]
builtin/ builtin.h
[torvalds@nehalem git]$ em builtin [auto-completes to]
[torvalds@nehalem git]$ em builtin/sh<tab> [type]
shortlog.c shortlog.o show-branch.c show-branch.o show-ref.c show-ref.o
[torvalds@nehalem git]$ em builtin/sho [auto-completes to]
[torvalds@nehalem git]$ em builtin/shor<tab> [type]
shortlog.c shortlog.o
[torvalds@nehalem git]$ em builtin/shortlog.c
which doesn't seem all that different, but not having that annoying
break in "Display all 180 possibilities?" is quite a relief.
NOTE! If you do this in a clean tree (no object files etc), or using an
editor that has auto-completion rules that ignores '*.o' files, you
won't see that annoying 'Display all 180 possibilities?' message - it
will just show the choices instead. I think bash has some cut-off
around 100 choices or something.
So the reason I see this is that I'm using an odd editory, and thus
don't have the rules to cut down on auto-completion. But you can
simulate that by using 'ls' instead, or something similar.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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