Commit Graph

49 Commits

Author SHA1 Message Date
Han-Wen Nienhuys
e6b0a8fab8 t6050: use git-update-ref rather than filesystem access
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-08-02 13:17:20 -07:00
Junio C Hamano
27d7c8599b Merge branch 'js/default-branch-name-tests-final-stretch'
Prepare tests not to be affected by the name of the default branch
"git init" creates.

* js/default-branch-name-tests-final-stretch: (28 commits)
  tests: drop prereq `PREPARE_FOR_MAIN_BRANCH` where no longer needed
  t99*: adjust the references to the default branch name "main"
  tests(git-p4): transition to the default branch name `main`
  t9[5-7]*: adjust the references to the default branch name "main"
  t9[0-4]*: adjust the references to the default branch name "main"
  t8*: adjust the references to the default branch name "main"
  t7[5-9]*: adjust the references to the default branch name "main"
  t7[0-4]*: adjust the references to the default branch name "main"
  t6[4-9]*: adjust the references to the default branch name "main"
  t64*: preemptively adjust alignment to prepare for `master` -> `main`
  t6[0-3]*: adjust the references to the default branch name "main"
  t5[6-9]*: adjust the references to the default branch name "main"
  t55[4-9]*: adjust the references to the default branch name "main"
  t55[23]*: adjust the references to the default branch name "main"
  t551*: adjust the references to the default branch name "main"
  t550*: adjust the references to the default branch name "main"
  t5503: prepare aligned comment for replacing `master` with `main`
  t5[0-4]*: adjust the references to the default branch name "main"
  t5323: prepare centered comment for `master` -> `main`
  t4*: adjust the references to the default branch name "main"
  ...
2021-01-25 14:19:18 -08:00
Ævar Arnfjörð Bjarmason
317c176279 mktag tests: don't redirect stderr to a file needlessly
Remove the redirection of stderr to "message" in the valid tag
test. This pattern seems to have been copy/pasted from the failure
case in 446c6faec6 (New tests and en-passant modifications to mktag.,
2006-07-29).

While I'm at it do the same for the "replace" tests. The tag creation
I'm changing here seems to have been copy/pasted from the "mktag"
tests to those tests in cc400f5011 (mktag: call
"check_sha1_signature" with the replacement sha1, 2009-01-23).

Nobody examines the contents of the resulting "message" file, so the
net result is that error messages cannot be seen in "sh t3800-mktag.sh
-v" output.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-05 14:58:28 -08:00
Johannes Schindelin
1550bb6ed0 t6[0-3]*: adjust the references to the default branch name "main"
Carefully excluding t6300, which sees independent development elsewhere
at the time of writing, we use `main` as the default branch name in
t6[0-3]*. This trick was performed via

	$ (cd t &&
	   sed -i -e 's/master/main/g' -e 's/MASTER/MAIN/g' \
		-e 's/Master/Main/g' -- t6[0-3]*.sh &&
	   git checkout HEAD -- t6300\*)

This allows us to define `GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=main`
for those tests.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-19 15:44:18 -08:00
Johannes Schindelin
334afbc76f tests: mark tests relying on the current default for init.defaultBranch
In addition to the manual adjustment to let the `linux-gcc` CI job run
the test suite with `master` and then with `main`, this patch makes sure
that GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME is set in all test scripts
that currently rely on the initial branch name being `master by default.

To determine which test scripts to mark up, the first step was to
force-set the default branch name to `master` in

- all test scripts that contain the keyword `master`,

- t4211, which expects `t/t4211/history.export` with a hard-coded ref to
  initialize the default branch,

- t5560 because it sources `t/t556x_common` which uses `master`,

- t8002 and t8012 because both source `t/annotate-tests.sh` which also
  uses `master`)

This trick was performed by this command:

	$ sed -i '/^ *\. \.\/\(test-lib\|lib-\(bash\|cvs\|git-svn\)\|gitweb-lib\)\.sh$/i\
	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
	' $(git grep -l master t/t[0-9]*.sh) \
	t/t4211*.sh t/t5560*.sh t/t8002*.sh t/t8012*.sh

After that, careful, manual inspection revealed that some of the test
scripts containing the needle `master` do not actually rely on a
specific default branch name: either they mention `master` only in a
comment, or they initialize that branch specificially, or they do not
actually refer to the current default branch. Therefore, the
aforementioned modification was undone in those test scripts thusly:

	$ git checkout HEAD -- \
		t/t0027-auto-crlf.sh t/t0060-path-utils.sh \
		t/t1011-read-tree-sparse-checkout.sh \
		t/t1305-config-include.sh t/t1309-early-config.sh \
		t/t1402-check-ref-format.sh t/t1450-fsck.sh \
		t/t2024-checkout-dwim.sh \
		t/t2106-update-index-assume-unchanged.sh \
		t/t3040-subprojects-basic.sh t/t3301-notes.sh \
		t/t3308-notes-merge.sh t/t3423-rebase-reword.sh \
		t/t3436-rebase-more-options.sh \
		t/t4015-diff-whitespace.sh t/t4257-am-interactive.sh \
		t/t5323-pack-redundant.sh t/t5401-update-hooks.sh \
		t/t5511-refspec.sh t/t5526-fetch-submodules.sh \
		t/t5529-push-errors.sh t/t5530-upload-pack-error.sh \
		t/t5548-push-porcelain.sh \
		t/t5552-skipping-fetch-negotiator.sh \
		t/t5572-pull-submodule.sh t/t5608-clone-2gb.sh \
		t/t5614-clone-submodules-shallow.sh \
		t/t7508-status.sh t/t7606-merge-custom.sh \
		t/t9302-fast-import-unpack-limit.sh

We excluded one set of test scripts in these commands, though: the range
of `git p4` tests. The reason? `git p4` stores the (foreign) remote
branch in the branch called `p4/master`, which is obviously not the
default branch. Manual analysis revealed that only five of these tests
actually require a specific default branch name to pass; They were
modified thusly:

	$ sed -i '/^ *\. \.\/lib-git-p4\.sh$/i\
	GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME=master\
	export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME\
	' t/t980[0167]*.sh t/t9811*.sh

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-19 15:44:17 -08:00
Han-Wen Nienhuys
cdb73ca56f t: use update-ref and show-ref to reading/writing refs
Reading and writing .git/refs/* assumes that refs are stored in the 'files'
ref backend.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-05-20 10:39:01 -07:00
Christian Couder
ee521ec4cb replace: peel tag when passing a tag first to --graft
When passing a tag as the first argument to `git replace --graft`,
it can be useful to accept it and use the underlying commit as a
the commit that will be replaced.

This already works for lightweight tags, but unfortunately
for annotated tags we have been using the hash of the tag object
instead of the hash of the underlying commit.

Especially we would pass the hash of the tag object to
replace_object_oid() where we would likely fail with an error
like:

"error: Objects must be of the same type.
'annotated_replaced_object' points to a replaced object of type 'tag'
while 'replacement' points to a replacement object of type 'commit'."

This patch fixes that by using the hash of the underlying commit
when an annotated tag is passed.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-15 11:33:23 +09:00
Christian Couder
f8e44a81bf replace: peel tag when passing a tag as parent to --graft
When passing a tag as a parent argument to `git replace --graft`,
it can be useful to accept it and use the underlying commit as a
parent.

This already works for lightweight tags, but unfortunately
for annotated tags we have been using the hash of the tag object
instead of the hash of the underlying commit as a parent in the
replacement object we create.

This created invalid objects, but the replace succeeded even if
it showed an error like:

error: object A is a tag, not a commit

This patch fixes that by using the hash of the underlying commit
when an annotated tag is passed.

While at it, let's also update an error message to make it
clearer.

Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-15 11:31:42 +09:00
Christian Couder
5876170167 t6050: redirect expected error output to a file
Otherwise the error from `git rev-parse` is uselessly
polluting the debug output.

Redirecting to a file, instead of /dev/null, makes it
possible to check that we got the error we expected, so
let's check that too.

Reviewed-by: Taylor Blau <me@ttaylorr.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-01 17:49:00 +09:00
Christian Couder
502d87b9e3 t6050: use test_line_count instead of wc -l
This modernizes a test and makes it more portable.

Reviewed-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-01 17:49:00 +09:00
Junio C Hamano
3813a89fae Merge branch 'nd/i18n'
More _("i18n") markings.

* nd/i18n:
  fsck: mark strings for translation
  fsck: reduce word legos to help i18n
  parse-options.c: mark more strings for translation
  parse-options.c: turn some die() to BUG()
  parse-options: replace opterror() with optname()
  repack: mark more strings for translation
  remote.c: mark messages for translation
  remote.c: turn some error() or die() to BUG()
  reflog: mark strings for translation
  read-cache.c: add missing colon separators
  read-cache.c: mark more strings for translation
  read-cache.c: turn die("internal error") to BUG()
  attr.c: mark more string for translation
  archive.c: mark more strings for translation
  alias.c: mark split_cmdline_strerror() strings for translation
  git.c: mark more strings for translation
2019-01-04 13:33:31 -08:00
Ævar Arnfjörð Bjarmason
8821e90a09 advice: don't pointlessly suggest --convert-graft-file
The advice to run 'git replace --convert-graft-file' added in
f9f99b3f7d ("Deprecate support for .git/info/grafts", 2018-04-29)
didn't add an exception for the 'git replace --convert-graft-file'
codepath itself.

As a result we'd suggest running --convert-graft-file while the user
was running --convert-graft-file, which makes no sense. Before:

    $ git replace --convert-graft-file
    hint: Support for <GIT_DIR>/info/grafts is deprecated
    hint: and will be removed in a future Git version.
    hint:
    hint: Please use "git replace --convert-graft-file"
    hint: to convert the grafts into replace refs.
    hint:
    hint: Turn this message off by running
    hint: "git config advice.graftFileDeprecated false"

Add a check for that case and skip printing the advice while the user
is busy following our advice.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-29 15:15:17 +09:00
Nguyễn Thái Ngọc Duy
674ba34038 fsck: mark strings for translation
Two die() are updated to start with lowercase to be consistent with
the rest.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-12 14:47:10 +09:00
Jeff King
da4398d6a0 add core.usereplacerefs config option
We can already disable replace refs using a command line
option or environment variable, but those are awkward to
apply universally. Let's add a config option to do the same
thing.

That raises the question of why one might want to do so
universally. The answer is that replace refs violate the
immutability of objects. For instance, if you wanted to
cache the diff between commit XYZ and its parent, then in
theory that never changes; the hash XYZ represents the total
state. But replace refs violate that; pushing up a new ref
may create a completely new diff.

The obvious "if it hurts, don't do it" answer is not to
create replace refs if you're doing this kind of caching.
But for a site hosting arbitrary repositories, they may want
to allow users to share replace refs with each other, but
not actually respect them on the site (because the caching
is more important than the replace feature).

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18 15:45:27 -07:00
Junio C Hamano
0e7af5f6d1 Merge branch 'sg/t6500-no-redirect-of-stdin'
Test cleanup.

* sg/t6500-no-redirect-of-stdin:
  t6050-replace: don't disable stdin for the whole test script
2018-05-30 14:04:04 +09:00
SZEDER Gábor
4ed79d5203 t6050-replace: don't disable stdin for the whole test script
The test script 't6050-replace.sh' starts off with redirecting the
whole test script's stdin from /dev/null.  This redirection has been
there since the test script was introduced in a3e8267225
(replace_object: add a test case, 2009-01-23), but the commit message
doesn't explain why it was deemed necessary.  AFAICT, it has never
been necessary, and t6050 runs just fine and succeeds even without it,
not only the current version but past versions as well.

Besides being unnecessary, this redirection is also harmful, as it
prevents the test helper functions 'test_pause' and 'debug' from
working properly in t6050, because we can't enter any commands to the
shell and the debugger, respectively.

So let's remove that redirection.

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-09 11:21:53 +09:00
Johannes Schindelin
0115e030db Add a test for git replace --convert-graft-file
The proof, as the saying goes, lies in the pudding. So here is a
regression test that not only demonstrates what the option is supposed to
accomplish, but also demonstrates that it does accomplish it.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-30 11:12:31 +09:00
SZEDER Gábor
36fc7d8a79 t6050-replace: make failing editor test more robust
'git replace --edit' should error out when the invoked editor fails,
but the test checking this behavior would not notice if this weren't
the case.

The test in question, ever since it was added in 85f98fc037
(replace: add tests for --edit, 2014-05-17), has simulated a failing
editor in an unconventional way:

  test_must_fail env GIT_EDITOR='./fakeeditor;false' git replace --edit

I presume the reason for this unconventional editor was the fact that
'git replace --edit' requires the edited object to be different from
the original, but a mere 'false' as editor would leave the object
unchanged and 'git replace --edit' would error out anyway complaining
about the new and the original object files being the same.  Running
'fakeeditor' before 'false' was supposed to ensure that the object
file is modified and thus 'git replace --edit' errors out because of
the failed editor.

However, this editor doesn't actually modify the edited object,
because start_command() turns this editor into:

  /bin/sh -c './fakeeditor;false "$@"' './fakeeditor;false' \
          '.../.git/REPLACE_EDITOBJ'

This means that the test's fakeeditor script doesn't even get the path
of the object to be edited as argument, triggering error messages from
the commands executed inside the script ('sed' and 'mv'), and
ultimately leaving the object file unchanged.

If a patch were to remove the die() from the error path after
launch_editor(), the test would not catch it, because 'git replace'
would continue execution past launch_editor() and would error out a
bit later due to the unchanged edited object.  Though 'git replace'
would error out for the wrong reason, this would satisfy
'test_must_fail' just as well, and the test would succeed leaving the
undesired change unnoticed.

Create a proper failing fake editor script for this test to ensure
that the edited object is in fact modified and 'git replace --edit'
won't error out because the new and original object files are the
same.

Signed-off-by: SZEDER Gábor <szeder@ira.uka.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-05 09:50:39 -08:00
Christian Couder
3fa1025907 replace: add test for --graft with a mergetag
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21 12:07:04 -07:00
Christian Couder
60e2f5a5af replace: add test for --graft with signed commit
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21 12:06:20 -07:00
Christian Couder
adf8e54238 replace: add test for --graft
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21 12:04:40 -07:00
Christian Couder
1c2828c194 replace: cleanup redirection style in tests
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-07 15:33:17 -07:00
Christian Couder
85f98fc037 replace: add tests for --edit
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19 13:39:53 -07:00
Christian Couder
663a8566be replace info: rename 'full' to 'long' and clarify in-code symbols
Enum names SHORT/MEDIUM/FULL were too broad to be descriptive.  And
they clashed with built-in symbols on platforms like Windows.
Clarify by giving them REPLACE_FORMAT_ prefix.

Rename 'full' format in "git replace --format=<name>" to 'long', to
match others (i.e. 'short' and 'medium').

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-30 12:33:11 -08:00
Christian Couder
769a4fa463 builtin/replace: unset read_replace_refs
When checking to see if some objects are of the same type
and when displaying the type of objects, git replace uses
the sha1_object_info() function.

Unfortunately this function by default respects replace
refs, so instead of the type of a replaced object, it
gives the type of the replacement object which might
be different.

To fix this bug, and because git replace should work at a
level before replacement takes place, let's unset the
read_replace_refs global variable at the beginning of
cmd_replace().

Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12 11:53:49 -08:00
Christian Couder
bbbb4afc26 t6050: add tests for listing with --format
This patch adds tests for "git replace -l --format=<fmt>".

'short', 'medium' and 'full' are the only allowed values
for <fmt>.

'short' is the same as with no --format option.
Tests for 'medium' and 'full' are the most needed.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12 11:53:49 -08:00
Christian Couder
1f7117ef7a sha1_file: perform object replacement in sha1_object_info_extended()
sha1_object_info_extended() should perform object replacement
if it is needed.

The simplest way to do that is to make it call
lookup_replace_object_extended().

And now its "unsigned flags" parameter is used as it is passed
to lookup_replace_object_extended().

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12 11:53:49 -08:00
Christian Couder
303c5d65c9 t6050: show that git cat-file --batch fails with replace objects
When --batch is passed to git cat-file, the sha1_object_info_extended()
function is used to get information about the objects passed to
git cat-file.

Unfortunately sha1_object_info_extended() doesn't take care of
object replacement properly, so it will often fail with a
message like this:

$ echo a3fb2e1845a1aaf129b7975048973414dc172173 | git cat-file --batch
a3fb2e1845a1aaf129b7975048973414dc172173 commit 231
fatal: object a3fb2e1845a1aaf129b7975048973414dc172173 change size!?

The goal of this patch is to show this breakage.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12 11:53:49 -08:00
Christian Couder
b1ecd8cfdf t6050-replace: use some long option names
So that they are tested a little bit too.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-06 13:32:34 -07:00
Christian Couder
11aec9556b t6050-replace: add test to clean up all the replace refs
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-06 13:29:44 -07:00
Christian Couder
3e625c8fec t6050-replace: test that objects are of the same type
and that the -f option bypasses the type check

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-06 13:29:38 -07:00
Michael J Gruber
9dfc36841b replace: parse revision argument for -d
'git replace' parses the revision arguments when it creates replacements
(so that a sha1 can be abbreviated, e.g.) but not when deleting
replacements.

Make it parse the argument to 'replace -d' in the same way.

Signed-off-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Jeff King <peff@peff.net>
2012-11-13 08:34:14 -05:00
Junio C Hamano
abb25ac365 t6050: make sure we test not just commit replacement
The replacement mechanism should affect all types of objects not
just commits, so make sure it deals with at least a blob.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-05-15 15:23:32 -07:00
Jonathan Nieder
a48fcd8369 tests: add missing &&
Breaks in a test assertion's && chain can potentially hide
failures from earlier commands in the chain.

Commands intended to fail should be marked with !, test_must_fail, or
test_might_fail.  The examples in this patch do not require that.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-09 11:59:49 -08:00
Christian Couder
d212cef936 t6050 (replace): fix bogus "fetch branch with replacement" test
The test was missing some "&&" at the end of some lines and it
was wrong because, as the replacement refs were not fetched,
the commits from the parallel branch should not show up. This
was found by Elijah Newren.

This is fixed by checking that after the branch from HASH6 is
fetched, the commits from the parallel branch don't show up,
and then by fetching the replacement refs and checking that
they do show up afterwards.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-27 11:40:45 -07:00
Jonathan Nieder
18a8269242 tests: subshell indentation stylefix
Format the subshells introduced by the previous patch (Several tests:
cd inside subshell instead of around, 2010-09-06) like so:

	(
		cd subdir &&
		...
	) &&

This is generally easier to read and has the nice side-effect that
this patch will show what commands are used in the subshell, making
it easier to check for lost environment variables and similar
behavior changes.

Cc: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-09 15:56:20 -07:00
Junio C Hamano
347c47e61e Merge branch 'jl/maint-fix-test'
* jl/maint-fix-test:
  Several tests: cd inside subshell instead of around

Conflicts:
	t/t9600-cvsimport.sh
2010-09-06 16:46:36 -07:00
Jens Lehmann
fd4ec4f2bb Several tests: cd inside subshell instead of around
Fixed all places where it was a straightforward change from cd'ing into a
directory and back via "cd .." to a cd inside a subshell.

Found these places with "git grep -w "cd \.\.".

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-06 14:30:53 -07:00
Junio C Hamano
f92d62ec4e Merge branch 'nd/maint-fix-replace'
* nd/maint-fix-replace:
  parse_object: pass on the original sha1, not the replaced one
2010-09-03 22:23:13 -07:00
Nguyễn Thái Ngọc Duy
2e3400c052 parse_object: pass on the original sha1, not the replaced one
Commit 0e87c36 (object: call "check_sha1_signature" with the
replacement sha1) changed the first argument passed to
parse_object_buffer() from "sha1" to "repl". With that change,
the returned obj pointer has the replacement SHA1 in obj->sha1,
not the original one.

But when using lookup_commit() and then parse_commit() on a
commit, we get an object pointer with the original sha1, but
the commit content comes from the replacement commit.

So the result we get from using parse_object() is different
from the we get from using lookup_commit() followed by
parse_commit().

It looks much simpler and safer to fix this inconsistency by
passing "sha1" to parse_object_bufer() instead of "repl".

The commit comment should be used to tell the the replacement
commit is replacing another commit and why. So it should be
easy to see that we have a replacement commit instead of an
original one.

And it is not a problem if the content of the commit is not
consistent with the sha1 as cat-file piped to hash-object can
be used to see the difference.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-09-03 22:13:08 -07:00
Nelson Elhage
6e2a09d24b index-pack: Don't follow replace refs.
Without this, attempting to index a pack containing objects that have been
replaced results in a fatal error that looks like:

fatal: SHA1 COLLISION FOUND WITH <replaced-object> !

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Acked-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-12 13:26:05 -07:00
Christian Couder
6476b38b1f replace: use a GIT_NO_REPLACE_OBJECTS env variable
This has the same effect as --no-replace-objects option; git ignores the
replace refs.  When --no-replace-objects option is passed to git, this
environment variable is set to "1" and exported to subprocesses in order
to propagate the same setting.

It is useful for example for scripts, as the git commands used in them can
now be aware that they must not read replace refs.

Tested-by: Michael J Gruber <git@drmicha.warpmail.net>
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-20 22:08:10 -08:00
Christian Couder
b0fa7ab51b git: add --no-replace-objects option to disable replacing
Commit dae556b (environment: add global variable to disable replacement)
adds a variable to enable/disable replacement, and it is enabled by
default for most commands.

So there is no way to disable it for some commands, which is annoying
when we want to get information about a commit that has been replaced.

For example:

$ git cat-file -p N

would output information about the replacement commit if commit N is
replaced.

With the "--no-replace-objects" option that this patch adds it is
possible to get information about the original commit using:

$ git --no-replace-objects cat-file -p N

While at it, let's add some documentation about this new option in the
"git replace" man page too.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-13 01:07:29 -07:00
Christian Couder
4e65b538ac t6050: check pushing something based on a replaced commit
When using something like:

$ git push $there 04a8c^2:master

we need to parse 04a8c to find its second parent and then start
discussing what object to send with the other end.  "04a8c^2" is a direct
user input and should mean the same commit as git show "04a8c^2" would
give the user, so it obviously needs to obey the replace rules (making
04a8c parsed), but the object transfer should not look at replace at all.

This patch adds some tests to check that the above is working well.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:03:40 -07:00
Christian Couder
bebdd271ff builtin-replace: teach "git replace" to actually replace
Teach the syntax: "git replace <object> <replacement>", so that
"git replace" can now create replace refs. These replace refs
will be used by read_sha1_file to substitute <object> with
<replacement> for most of the commands.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:03:00 -07:00
Christian Couder
54b0c1e041 Add new "git replace" command
This command can only be used now to list replace refs in
"refs/replace/" and to delete them.

The option to list replace refs is "-l".
The option to delete replace refs is "-d".

The behavior should be consistent with how "git tag" and "git branch"
are working.

The code has been copied from "builtin-tag.c" by Kristian Høgsberg
<krh@redhat.com> and Carlos Rica <jasampler@gmail.com> that was itself
based on git-tag.sh and mktag.c by Linus Torvalds.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:02:59 -07:00
Christian Couder
dae556bdb1 environment: add global variable to disable replacement
This new "read_replace_refs" global variable is set to 1 by
default, so that replace refs are used by default. But
reachability traversal and packing commands ("cmd_fsck",
"cmd_prune", "cmd_pack_objects", "upload_pack",
"cmd_unpack_objects") set it to 0, as they must work with the
original DAG.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:02:59 -07:00
Christian Couder
cc400f5011 mktag: call "check_sha1_signature" with the replacement sha1
Otherwise we get a "sha1 mismatch" error for replaced objects.

Note that I am not sure at all that this is a good change.
It may be that we should just refuse to tag a replaced object. But
in this case we should probably give a meaningfull error message
instead of "sha1 mismatch".

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:02:59 -07:00
Christian Couder
a3e8267225 replace_object: add a test case
In this patch the setup code is very big, but this will be used in
test cases that will be added later.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-31 17:02:59 -07:00