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24 commits

Author SHA1 Message Date
Junio C Hamano
6789275d37 tests: teach callers of test_i18ngrep to use test_grep
They are equivalents and the former still exists, so as long as the
only change this commit makes are to rewrite test_i18ngrep to
test_grep, there won't be any new bug, even if there still are
callers of test_i18ngrep remaining in the tree, or when merged to
other topics that add new uses of test_i18ngrep.

This patch was produced more or less with

    git grep -l -e 'test_i18ngrep ' 't/t[0-9][0-9][0-9][0-9]-*.sh' |
    xargs perl -p -i -e 's/test_i18ngrep /test_grep /'

and a good way to sanity check the result yourself is to run the
above in a checkout of c4603c1c (test framework: further deprecate
test_i18ngrep, 2023-10-31) and compare the resulting working tree
contents with the result of applying this patch to the same commit.
You'll see that test_i18ngrep in a few t/lib-*.sh files corrected,
in addition to the manual reproduction.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2023-11-02 17:13:44 +09:00
Ævar Arnfjörð Bjarmason
c39176b160 proc-receive hook tests: use "test_hook" instead of "write_script"
Change the t5411/*.sh tests to use the test_hook helper instead of
"write_script". Unfortunately these tests do the setup and test across
different test_expect_success blocks, so we have to use
--clobber (implying --setup) for these.

Let's change those that can use a quoted here-doc to do so while we're
at it.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2022-03-17 14:42:14 -07:00
Junio C Hamano
5bae927222 Merge branch 'ab/pkt-line-tests'
Tests that cover protocol bits have been updated and helpers
used there have been consolidated.

* ab/pkt-line-tests:
  test-lib-functions: use test-tool for [de]packetize()
2021-07-28 13:18:00 -07:00
Ævar Arnfjörð Bjarmason
64f0109f17 test-lib-functions: use test-tool for [de]packetize()
The shell+perl "[de]packetize()" helper functions were added in
4414a15002 (t/lib-git-daemon: add network-protocol helpers,
2018-01-24), and around the same time we added the "pkt-line" helper
in 74e7002961 (test-pkt-line: introduce a packet-line test helper,
2018-03-14).

For some reason it seems we've mostly used the shell+perl version
instead of the helper since then. There were discussions around
88124ab263 (test-lib-functions: make packetize() more efficient,
2020-03-27) and cacae4329f (test-lib-functions: simplify packetize()
stdin code, 2020-03-29) to improve them and make them more efficient.

There was one good reason to do so, we needed an equivalent of
"test-tool pkt-line pack", but that command wasn't capable of handling
input with "\n" (a feature) or "\0" (just because it happens to be
printf-based under the hood).

Let's add a "pkt-line-raw" helper for that, and expose is at a
packetize_raw() to go with the existing packetize() on the shell
level, this gives us the smallest amount of change to the tests
themselves.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-07-19 11:53:50 -07:00
Jiang Xin
12d6991cf4 test: refactor to use "get_abbrev_oid" to get abbrev oid
Add new function "get_abbrev_oid" to get abbrev object ID.  This
function has a default value which helps to prepare a nonempty replace
pattern for sed command.  An empty replace pattern may cause sed fail
to allocate memory.

Refactor function "make_user_friendly_and_stable_output" to use
"get_abbrev_oid" to get abbrev object ID.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-17 14:12:24 +09:00
Jiang Xin
3c06a58339 test: refactor to use "test_commit" to create commits
Refactor function "create_commits_in" to use "test_commit" to create
commit.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-17 14:12:22 +09:00
Jiang Xin
2bafb3d702 test: compare raw output, not mangle tabs and spaces
Before comparing with the expect file, we used to call function
"make_user_friendly_and_stable_output" to filter out trailing spaces in
output.  Ævar recommends using pattern "s/Z$//" to prepare expect file,
and then compare it with raw output.

Since we have fixed the issue of occasionally missing the clear-to-eol
suffix when displaying sideband #2 messages, it is safe and stable to
test against raw output.

Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-06-17 14:12:21 +09:00
Junio C Hamano
fdf3a27ca9 Merge branch 'jx/t5411-unique-filenames'
Avoid individual tests in t5411 from getting affected by each other
by forcing them to use separate output files during the test.

* jx/t5411-unique-filenames:
  t5411: refactor check of refs using test_cmp_refs
  t5411: use different out file to prevent overwriting
2021-02-17 17:21:42 -08:00
Jiang Xin
822ee894f6 t5411: refactor check of refs using test_cmp_refs
Add new helper 'test_cmp_refs' to check references in a repository.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-22 13:09:06 -08:00
Jiang Xin
8388a64cd1 t5411: use different out file to prevent overwriting
SZEDER reported that t5411 failed in Travis CI's s390x environment a
couple of times, and could be reproduced with '--stress' test on this
specific environment.  The test failure messages might look like this:

    + test_cmp expect actual
    --- expect      2021-01-17 21:55:23.430750004 +0000
    +++ actual      2021-01-17 21:55:23.430750004 +0000
    @@ -1 +1 @@
    -<COMMIT-A> refs/heads/main
    +<COMMIT-A> refs/heads/maifatal: the remote end hung up unexpectedly
    error: last command exited with $?=1
    not ok 86 - proc-receive: not support push options (builtin protocol)

The file 'actual' is filtered from the file 'out' which contains result
of 'git show-ref' command.  Due to the error messages from other process
is written into the file 'out' accidentally, t5411 failed.  SZEDER finds
the root cause of this issue:

 - 'git push' is executed with its standard output and error redirected
   to the file 'out'.

 - 'git push' executes 'git receive-pack' internally, which inherits
   the open file descriptors, so its output and error goes into that
   same 'out' file.

 - 'git push' ends without waiting for the close of 'git-receive-pack'
   for some cases, and the file 'out' is reused for test of
   'git show-ref' afterwards.

 - A mixture of the output of 'git show-ref' abd 'git receive-pack'
   leads to this issue.

The first intuitive reaction to resolve this issue is to remove the
file 'out' after use, so that the newly created file 'out' will have a
different file descriptor and will not be overwritten by the
'git receive-pack' process.  But Johannes pointed out that removing an
open file is not possible on Windows.  So we use different temporary
file names to store the output of 'git push' to solve this issue.

Reported-by: SZEDER Gábor <szeder.dev@gmail.com>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Helped-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-22 13:09:04 -08:00
Ævar Arnfjörð Bjarmason
73c01d25fe tests: remove uses of GIT_TEST_GETTEXT_POISON=false
As noted in previous commits we are removing the use of
GIT_TEST_GETTEXT_POISON=false. These tests all relied on the facility
being off, it always is off after an earlier change, but we hadn't
removed the redundant assignments to "false" in the tests.

I'm preserving the deletion of "error" lines in 38b9197a76 (t5411:
add basic test cases for proc-receive hook, 2020-08-27), it turns out
that's useful even without GIT_TEST_GETTEXT_POISON=true in
play. Update a comment added in that commit to note that.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-01-21 15:50:03 -08:00
Jiang Xin
80ffeb94f4 receive-pack: use default version 0 for proc-receive
In the verison negotiation phase between "receive-pack" and
"proc-receive", "proc-receive" can send an empty flush-pkt to end the
negotiation and use default version 0. Capabilities (such as
"push-options") are not supported in version 0.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 12:46:56 -08:00
Jiang Xin
f65003b4c4 receive-pack: gently write messages to proc-receive
Johannes found a flaky hang in `t5411/test-0013-bad-protocol.sh` in the
osx-clang job of the CI/PR builds, and ran into an issue when using
the `--stress` option with the following error messages:

    fatal: unable to write flush packet: Broken pipe
    send-pack: unexpected disconnect while reading sideband packet
    fatal: the remote end hung up unexpectedly

In this test case, the "proc-receive" hook sends an error message and
dies earlier. While "receive-pack" on the other side of the pipe
should forward the error message of the "proc-receive" hook to the
client side, but it fails to do so. This is because "receive-pack"
uses `packet_write_fmt()` and `packet_flush()` to write pkt-line
message to "proc-receive" hook, and these functions die immediately
when pipe is broken. Using "gently" forms for these functions will get
more predicable output.

Add more "--die-*" options to test helper to test different stages of
the protocol between "receive-pack" and "proc-receive" hook.

Reported-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 12:46:56 -08:00
Jiang Xin
cf3d868f35 t5411: new helper filter_out_user_friendly_and_stable_output
New helper `filter_out_user_friendly_and_stable_output` will call
common helpr function `make_user_friendly_and_stable_output` and use
additional arguments to filter out messages for specific test cases.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-11-11 12:46:55 -08:00
Johannes Schindelin
5d5f4ea30d t5411: finish preparing for main being the default branch name
In addition to the trivial search-and-replace performed over the course
of the previous three commits, there is one test in t5411 that depends
on the length of the default branch name.

Adjust it and use `main` as the default branch name in this test.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-31 13:15:17 -07:00
Johannes Schindelin
a9568dba41 t5411: adjust the remaining support files for init.defaultBranch=main
This trick was performed via

	$ sed -i -e 's/master/main/g' -e 's/MASTER/MAIN/g' \
		-e 's/Master/Main/g' -- t/t5411/*

In the previous commit, we adjusted roughly half of the support files,
to stay under the 100kB limit (mails larger than that are rejected by
the Git mailing list).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-31 13:15:17 -07:00
Johannes Schindelin
8f0a264524 t5411: start adjusting the support files for init.defaultBranch=main
This trick was performed via

	$ sed -i -e 's/master/main/g' -e 's/MASTER/MAIN/g' \
		-e 's/Master/Main/g' -- t/t5411/test-00[3-5]*

We do not convert the files in `t/t5411/` in one go because the patch
would be too big (mails larger than 100kB are rejected by the Git
mailing list). Instead, we start with roughly half of the support files.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-10-31 13:15:17 -07:00
Jiang Xin
1702ae6f61 transport: parse report options for tracking refs
When pushing a pseudo reference (such as "refs/for/master/topic"), may
create or update one or more references.  The real names of the
references will be stored in the report options.  Parse report options
to create or update remote-tracking branches properly.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:48:47 -07:00
Jiang Xin
c6a6a01c4a t5411: test updates of remote-tracking branches
In order to test update of remote-tracking branches for special refs,
add new "remote.origin.fetch" settings and test cases.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00
Jiang Xin
31e8595a11 receive-pack: new config receive.procReceiveRefs
Add a new multi-valued config variable "receive.procReceiveRefs"
for `receive-pack` command, like the follows:

    git config --system --add receive.procReceiveRefs refs/for
    git config --system --add receive.procReceiveRefs refs/drafts

If the specific prefix strings given by the config variables match the
reference names of the commands which are sent from git client to
`receive-pack`, these commands will be executed by an external hook
(named "proc-receive"), instead of the internal `execute_commands`
function.

For example, if it is set to "refs/for", pushing to a reference such as
"refs/for/master" will not create or update reference "refs/for/master",
but may create or update a pull request directly by running the hook
"proc-receive".

Optional modifiers can be provided in the beginning of the value to
filter commands for specific actions: create (a), modify (m),
delete (d). A `!` can be included in the modifiers to negate the
reference prefix entry. E.g.:

    git config --system --add receive.procReceiveRefs ad:refs/heads
    git config --system --add receive.procReceiveRefs !:refs/heads

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00
Jiang Xin
63518a574a New capability "report-status-v2" for git-push
The new introduced "proc-receive" hook may handle a command for a
pseudo-reference with a zero-old as its old-oid, while the hook may
create or update a reference with different name, different new-oid,
and different old-oid (the reference may exist already with a non-zero
old-oid).  Current "report-status" protocol cannot report the status for
such reference rewrite.

Add new capability "report-status-v2" and new report protocol which is
not backward compatible for report of git-push.

If a user pushes to a pseudo-reference "refs/for/master/topic", and
"receive-pack" creates two new references "refs/changes/23/123/1" and
"refs/changes/24/124/1", for client without the knowledge of
"report-status-v2", "receive-pack" will only send "ok/ng" directives in
the report, such as:

    ok ref/for/master/topic

But for client which has the knowledge of "report-status-v2",
"receive-pack" will use "option" directives to report more attributes
for the reference given by the above "ok/ng" directive.

    ok refs/for/master/topic
    option refname refs/changes/23/123/1
    option new-oid <new-oid>
    ok refs/for/master/topic
    option refname refs/changes/24/124/1
    option new-oid <new-oid>

The client will report two new created references to the end user.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00
Jiang Xin
195d6eaea3 receive-pack: feed report options to post-receive
When commands are fed to the "post-receive" hook, report options will
be parsed and the real old-oid, new-oid, reference name will feed to
the "post-receive" hook.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00
Jiang Xin
15d3af5e22 receive-pack: add new proc-receive hook
Git calls an internal `execute_commands` function to handle commands
sent from client to `git-receive-pack`.  Regardless of what references
the user pushes, git creates or updates the corresponding references if
the user has write-permission.  A contributor who has no
write-permission, cannot push to the repository directly.  So, the
contributor has to write commits to an alternate location, and sends
pull request by emails or by other ways.  We call this workflow as a
distributed workflow.

It would be more convenient to work in a centralized workflow like what
Gerrit provided for some cases.  For example, a read-only user who
cannot push to a branch directly can run the following `git push`
command to push commits to a pseudo reference (has a prefix "refs/for/",
not "refs/heads/") to create a code review.

    git push origin \
        HEAD:refs/for/<branch-name>/<session>

The `<branch-name>` in the above example can be as simple as "master",
or a more complicated branch name like "foo/bar".  The `<session>` in
the above example command can be the local branch name of the client
side, such as "my/topic".

We cannot implement a centralized workflow elegantly by using
"pre-receive" + "post-receive", because Git will call the internal
function "execute_commands" to create references (even the special
pseudo reference) between these two hooks.  Even though we can delete
the temporarily created pseudo reference via the "post-receive" hook,
having a temporary reference is not safe for concurrent pushes.

So, add a filter and a new handler to support this kind of workflow.
The filter will check the prefix of the reference name, and if the
command has a special reference name, the filter will turn a specific
field (`run_proc_receive`) on for the command.  Commands with this filed
turned on will be executed by a new handler (a hook named
"proc-receive") instead of the internal `execute_commands` function.
We can use this "proc-receive" command to create pull requests or send
emails for code review.

Suggested by Junio, this "proc-receive" hook reads the commands,
push-options (optional), and send result using a protocol in pkt-line
format.  In the following example, the letter "S" stands for
"receive-pack" and letter "H" stands for the hook.

    # Version and features negotiation.
    S: PKT-LINE(version=1\0push-options atomic...)
    S: flush-pkt
    H: PKT-LINE(version=1\0push-options...)
    H: flush-pkt

    # Send commands from server to the hook.
    S: PKT-LINE(<old-oid> <new-oid> <ref>)
    S: ... ...
    S: flush-pkt
    # Send push-options only if the 'push-options' feature is enabled.
    S: PKT-LINE(push-option)
    S: ... ...
    S: flush-pkt

    # Receive result from the hook.
    # OK, run this command successfully.
    H: PKT-LINE(ok <ref>)
    # NO, I reject it.
    H: PKT-LINE(ng <ref> <reason>)
    # Fall through, let 'receive-pack' to execute it.
    H: PKT-LINE(ok <ref>)
    H: PKT-LINE(option fall-through)
    # OK, but has an alternate reference.  The alternate reference name
    # and other status can be given in options
    H: PKT-LINE(ok <ref>)
    H: PKT-LINE(option refname <refname>)
    H: PKT-LINE(option old-oid <old-oid>)
    H: PKT-LINE(option new-oid <new-oid>)
    H: PKT-LINE(option forced-update)
    H: ... ...
    H: flush-pkt

After receiving a command, the hook will execute the command, and may
create/update different reference.  For example, a command for a pseudo
reference "refs/for/master/topic" may create/update different reference
such as "refs/pull/123/head".  The alternate reference name and other
status are given in option lines.

The list of commands returned from "proc-receive" will replace the
relevant commands that are sent from user to "receive-pack", and
"receive-pack" will continue to run the "execute_commands" function and
other routines.  Finally, the result of the execution of these commands
will be reported to end user.

The reporting function from "receive-pack" to "send-pack" will be
extended in latter commit just like what the "proc-receive" hook reports
to "receive-pack".

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00
Jiang Xin
38b9197a76 t5411: add basic test cases for proc-receive hook
Topic "proc-receive-hook" will change the workflow and output of
git-push. Add some basic test cases in t5411 before introducing the new
topic.

Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-08-27 12:47:47 -07:00