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Commit Graph

234 Commits

Author SHA1 Message Date
Junio C Hamano
b22db265d6 Merge branch 'es/recursive-single-branch-clone'
"git clone --recurse-submodules --single-branch" now uses the same
single-branch option when cloning the submodules.

* es/recursive-single-branch-clone:
  clone: pass --single-branch during --recurse-submodules
  submodule--helper: use C99 named initializer
2020-03-05 10:43:03 -08:00
Emily Shaffer
132f600b06 clone: pass --single-branch during --recurse-submodules
Previously, performing "git clone --recurse-submodules --single-branch"
resulted in submodules cloning all branches even though the superproject
cloned only one branch. Pipe --single-branch through the submodule
helper framework to make it to 'clone' later on.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-25 10:00:38 -08:00
Emily Shaffer
47319576f1 submodule--helper: use C99 named initializer
Start using a named initializer list for SUBMODULE_UPDATE_CLONE_INIT, as
the struct is becoming cumbersome for a typical struct initializer list.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-25 09:58:33 -08:00
Junio C Hamano
f2dcfcc21d Merge branch 'pk/status-of-uncloned-submodule'
The way "git submodule status" reports an initialized but not yet
populated submodule has not been reimplemented correctly when a
part of the "git submodule" command was rewritten in C, which has
been corrected.

* pk/status-of-uncloned-submodule:
  t7400: testcase for submodule status on unregistered inner git repos
  submodule: fix status of initialized but not cloned submodules
  t7400: add a testcase for submodule status on empty dirs
2020-02-14 12:54:23 -08:00
Peter Kaestle
3b2885ec9b submodule: fix status of initialized but not cloned submodules
Original bash helper for "submodule status" was doing a check for
initialized but not cloned submodules and prefixed the status with
a minus sign in case no .git file or folder was found inside the
submodule directory.

This check was missed when the original port of the functionality
from bash to C was done.

Signed-off-by: Peter Kaestle <peter.kaestle@nokia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-27 10:14:00 -08:00
Junio C Hamano
5dd1d59d35 Merge branch 'jt/clone-recursesub-ref-advise'
The interaction between "git clone --recurse-submodules" and
alternate object store was ill-designed.  The documentation and
code have been taught to make more clear recommendations when the
users see failures.

* jt/clone-recursesub-ref-advise:
  submodule--helper: advise on fatal alternate error
  Doc: explain submodule.alternateErrorStrategy
2019-12-10 13:11:43 -08:00
Junio C Hamano
7034cd094b Sync with Git 2.24.1 2019-12-09 22:17:55 -08:00
Johannes Schindelin
67af91c47a Sync with 2.23.1
* maint-2.23: (44 commits)
  Git 2.23.1
  Git 2.22.2
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  ...
2019-12-06 16:31:39 +01:00
Johannes Schindelin
7fd9fd94fb Sync with 2.22.2
* maint-2.22: (43 commits)
  Git 2.22.2
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  ...
2019-12-06 16:31:30 +01:00
Johannes Schindelin
5421ddd8d0 Sync with 2.21.1
* maint-2.21: (42 commits)
  Git 2.21.1
  mingw: sh arguments need quoting in more circumstances
  mingw: fix quoting of empty arguments for `sh`
  mingw: use MSYS2 quoting even when spawning shell scripts
  mingw: detect when MSYS2's sh is to be spawned more robustly
  t7415: drop v2.20.x-specific work-around
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  ...
2019-12-06 16:31:23 +01:00
Johannes Schindelin
fc346cb292 Sync with 2.20.2
* maint-2.20: (36 commits)
  Git 2.20.2
  t7415: adjust test for dubiously-nested submodule gitdirs for v2.20.x
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  ...
2019-12-06 16:31:12 +01:00
Jonathan Nieder
c154745074 submodule: defend against submodule.update = !command in .gitmodules
In v2.15.4, we started to reject `submodule.update` settings in
`.gitmodules`. Let's raise a BUG if it somehow still made it through
from anywhere but the Git config.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
2019-12-06 16:30:50 +01:00
Johannes Schindelin
d851d94151 Sync with 2.19.3
* maint-2.19: (34 commits)
  Git 2.19.3
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  ...
2019-12-06 16:30:49 +01:00
Johannes Schindelin
7c9fbda6e2 Sync with 2.18.2
* maint-2.18: (33 commits)
  Git 2.18.2
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  ...
2019-12-06 16:30:38 +01:00
Johannes Schindelin
14af7ed5a9 Sync with 2.17.3
* maint-2.17: (32 commits)
  Git 2.17.3
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  ...
2019-12-06 16:29:15 +01:00
Johannes Schindelin
bdfef0492c Sync with 2.16.6
* maint-2.16: (31 commits)
  Git 2.16.6
  test-drop-caches: use `has_dos_drive_prefix()`
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  ...
2019-12-06 16:27:36 +01:00
Johannes Schindelin
9ac92fed5b Sync with 2.15.4
* maint-2.15: (29 commits)
  Git 2.15.4
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  clone --recurse-submodules: prevent name squatting on Windows
  is_ntfs_dotgit(): only verify the leading segment
  ...
2019-12-06 16:27:18 +01:00
Johannes Schindelin
d3ac8c3f27 Sync with 2.14.6
* maint-2.14: (28 commits)
  Git 2.14.6
  mingw: handle `subst`-ed "DOS drives"
  mingw: refuse to access paths with trailing spaces or periods
  mingw: refuse to access paths with illegal characters
  unpack-trees: let merged_entry() pass through do_add_entry()'s errors
  quote-stress-test: offer to test quoting arguments for MSYS2 sh
  t6130/t9350: prepare for stringent Win32 path validation
  quote-stress-test: allow skipping some trials
  quote-stress-test: accept arguments to test via the command-line
  tests: add a helper to stress test argument quoting
  mingw: fix quoting of arguments
  Disallow dubiously-nested submodule git directories
  protect_ntfs: turn on NTFS protection by default
  path: also guard `.gitmodules` against NTFS Alternate Data Streams
  is_ntfs_dotgit(): speed it up
  mingw: disallow backslash characters in tree objects' file names
  path: safeguard `.git` against NTFS Alternate Streams Accesses
  clone --recurse-submodules: prevent name squatting on Windows
  is_ntfs_dotgit(): only verify the leading segment
  test-path-utils: offer to run a protectNTFS/protectHFS benchmark
  ...
2019-12-06 16:26:55 +01:00
Junio C Hamano
88cf80949e Merge branch 'mg/submodule-status-from-a-subdirectory'
"git submodule status" that is run from a subdirectory of the
superproject did not work well, which has been corrected.

* mg/submodule-status-from-a-subdirectory:
  submodule: fix 'submodule status' when called from a subdirectory
2019-12-05 12:52:47 -08:00
Johannes Schindelin
a8dee3ca61 Disallow dubiously-nested submodule git directories
Currently it is technically possible to let a submodule's git
directory point right into the git dir of a sibling submodule.

Example: the git directories of two submodules with the names `hippo`
and `hippo/hooks` would be `.git/modules/hippo/` and
`.git/modules/hippo/hooks/`, respectively, but the latter is already
intended to house the former's hooks.

In most cases, this is just confusing, but there is also a (quite
contrived) attack vector where Git can be fooled into mistaking remote
content for file contents it wrote itself during a recursive clone.

Let's plug this bug.

To do so, we introduce the new function `validate_submodule_git_dir()`
which simply verifies that no git dir exists for any leading directories
of the submodule name (if there are any).

Note: this patch specifically continues to allow sibling modules names
of the form `core/lib`, `core/doc`, etc, as long as `core` is not a
submodule name.

This fixes CVE-2019-1387.

Reported-by: Nicolas Joly <Nicolas.Joly@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-05 15:36:51 +01:00
Johannes Schindelin
0060fd1511 clone --recurse-submodules: prevent name squatting on Windows
In addition to preventing `.git` from being tracked by Git, on Windows
we also have to prevent `git~1` from being tracked, as the default NTFS
short name (also known as the "8.3 filename") for the file name `.git`
is `git~1`, otherwise it would be possible for malicious repositories to
write directly into the `.git/` directory, e.g. a `post-checkout` hook
that would then be executed _during_ a recursive clone.

When we implemented appropriate protections in 2b4c6efc82 (read-cache:
optionally disallow NTFS .git variants, 2014-12-16), we had analyzed
carefully that the `.git` directory or file would be guaranteed to be
the first directory entry to be written. Otherwise it would be possible
e.g. for a file named `..git` to be assigned the short name `git~1` and
subsequently, the short name generated for `.git` would be `git~2`. Or
`git~3`. Or even `~9999999` (for a detailed explanation of the lengths
we have to go to protect `.gitmodules`, see the commit message of
e7cb0b4455 (is_ntfs_dotgit: match other .git files, 2018-05-11)).

However, by exploiting two issues (that will be addressed in a related
patch series close by), it is currently possible to clone a submodule
into a non-empty directory:

- On Windows, file names cannot end in a space or a period (for
  historical reasons: the period separating the base name from the file
  extension was not actually written to disk, and the base name/file
  extension was space-padded to the full 8/3 characters, respectively).
  Helpfully, when creating a directory under the name, say, `sub.`, that
  trailing period is trimmed automatically and the actual name on disk
  is `sub`.

  This means that while Git thinks that the submodule names `sub` and
  `sub.` are different, they both access `.git/modules/sub/`.

- While the backslash character is a valid file name character on Linux,
  it is not so on Windows. As Git tries to be cross-platform, it
  therefore allows backslash characters in the file names stored in tree
  objects.

  Which means that it is totally possible that a submodule `c` sits next
  to a file `c\..git`, and on Windows, during recursive clone a file
  called `..git` will be written into `c/`, of course _before_ the
  submodule is cloned.

Note that the actual exploit is not quite as simple as having a
submodule `c` next to a file `c\..git`, as we have to make sure that the
directory `.git/modules/b` already exists when the submodule is checked
out, otherwise a different code path is taken in `module_clone()` that
does _not_ allow a non-empty submodule directory to exist already.

Even if we will address both issues nearby (the next commit will
disallow backslash characters in tree entries' file names on Windows,
and another patch will disallow creating directories/files with trailing
spaces or periods), it is a wise idea to defend in depth against this
sort of attack vector: when submodules are cloned recursively, we now
_require_ the directory to be empty, addressing CVE-2019-1349.

Note: the code path we patch is shared with the code path of `git
submodule update --init`, which must not expect, in general, that the
directory is empty. Hence we have to introduce the new option
`--force-init` and hand it all the way down from `git submodule` to the
actual `git submodule--helper` process that performs the initial clone.

Reported-by: Nicolas Joly <Nicolas.Joly@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
2019-12-04 13:20:05 +01:00
Jonathan Tan
4f3e57ef13 submodule--helper: advise on fatal alternate error
When recursively cloning a superproject with some shallow modules
defined in its .gitmodules, then recloning with "--reference=<path>", an
error occurs. For example:

  git clone --recurse-submodules --branch=master -j8 \
    https://android.googlesource.com/platform/superproject \
    master
  git clone --recurse-submodules --branch=master -j8 \
    https://android.googlesource.com/platform/superproject \
    --reference master master2

fails with:

  fatal: submodule '<snip>' cannot add alternate: reference repository
  '<snip>' is shallow

When a alternate computed from the superproject's alternate cannot be
added, whether in this case or another, advise about configuring the
"submodule.alternateErrorStrategy" configuration option and using
"--reference-if-able" instead of "--reference" when cloning.

Signed-off-by: Jonathan Tan <jonathantanmy@google.com>
Acked-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-12-03 08:49:45 -08:00
Manish Goregaokar
1f3aea22c7 submodule: fix 'submodule status' when called from a subdirectory
When calling `git submodule status` while in a subdirectory, we are
incorrectly not detecting modified submodules and
thus reporting that all of the submodules are unchanged.

This is because the submodule helper is calling `diff-index` with the
submodule path assuming the path is relative to the current prefix
directory, however the submodule path used is actually relative to the root.

Always pass NULL as the `prefix` when running diff-files on the
submodule, to make sure the submodule's path is interpreted as relative
to the superproject's repository root.

Signed-off-by: Manish Goregaokar <manishsmail@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-25 14:08:25 +09:00
Junio C Hamano
676278f8ea Merge branch 'bc/object-id-part17'
Preparation for SHA-256 upgrade continues.

* bc/object-id-part17: (26 commits)
  midx: switch to using the_hash_algo
  builtin/show-index: replace sha1_to_hex
  rerere: replace sha1_to_hex
  builtin/receive-pack: replace sha1_to_hex
  builtin/index-pack: replace sha1_to_hex
  packfile: replace sha1_to_hex
  wt-status: convert struct wt_status to object_id
  cache: remove null_sha1
  builtin/worktree: switch null_sha1 to null_oid
  builtin/repack: write object IDs of the proper length
  pack-write: use hash_to_hex when writing checksums
  sequencer: convert to use the_hash_algo
  bisect: switch to using the_hash_algo
  sha1-lookup: switch hard-coded constants to the_hash_algo
  config: use the_hash_algo in abbrev comparison
  combine-diff: replace GIT_SHA1_HEXSZ with the_hash_algo
  bundle: switch to use the_hash_algo
  connected: switch GIT_SHA1_HEXSZ to the_hash_algo
  show-index: switch hard-coded constants to the_hash_algo
  blame: remove needless comparison with GIT_SHA1_HEXSZ
  ...
2019-10-11 14:24:46 +09:00
Bert Wesarg
cda0d497e3 builtin/submodule--helper: fix usage string for 'update-clone'
Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-29 07:33:57 +09:00
brian m. carlson
8d4d86b0f0 cache: remove null_sha1
All of the existing uses of null_sha1 can be converted into uses of
null_oid, so do so.  Remove null_sha1 and is_null_sha1, and define
is_null_oid in terms of null_oid.  This also has the additional benefit
of removing several uses of sha1_to_hex.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-08-19 15:04:59 -07:00
Junio C Hamano
292a0de998 Merge branch 'ms/submodule-foreach-fix' into maint
"git submodule foreach" did not protect command line options passed
to the command to be run in each submodule correctly, when the
"--recursive" option was in use.

* ms/submodule-foreach-fix:
  submodule foreach: fix recursion of options
2019-07-29 12:38:18 -07:00
Junio C Hamano
968eecbd01 Merge branch 'ms/submodule-foreach-fix'
"git submodule foreach" did not protect command line options passed
to the command to be run in each submodule correctly, when the
"--recursive" option was in use.

* ms/submodule-foreach-fix:
  submodule foreach: fix recursion of options
2019-07-09 15:25:46 -07:00
Morian Sonnet
30db18b148 submodule foreach: fix recursion of options
Calling

    git submodule foreach --recursive <subcommand> --<option>

leads to an error stating that the option --<option> is unknown to
submodule--helper. That is of course only, when <option> is not a valid
option for git submodule foreach.

The reason for this is, that above call is internally translated into a
call to submodule--helper:

    git submodule--helper foreach --recursive \
        -- <subcommand> --<option>

This call starts by executing the subcommand with its option inside the
first level submodule and continues by calling the next iteration of
the submodule foreach call

    git --super-prefix <submodulepath> submodule--helper \
      foreach --recursive <subcommand> --<option>

inside the first level submodule. Note that the double dash in front of
the subcommand is missing.

This problem starts to arise only recently, as the
PARSE_OPT_KEEP_UNKNOWN flag for the argument parsing of git submodule
foreach was removed in commit a282f5a906. Hence, the unknown option is
complained about now, as the argument parsing is not properly ended by
the double dash.

This commit fixes the problem by adding the double dash in front of the
subcommand during the recursion.

Signed-off-by: Morian Sonnet <moriansonnet@googlemail.com>
Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-25 11:17:53 -07:00
Junio C Hamano
c0e78f7e46 Merge branch 'jk/unused-params-final-batch'
* jk/unused-params-final-batch:
  verify-commit: simplify parameters to run_gpg_verify()
  show-branch: drop unused parameter from show_independent()
  rev-list: drop unused void pointer from finish_commit()
  remove_all_fetch_refspecs(): drop unused "remote" parameter
  receive-pack: drop unused "commands" from prepare_shallow_update()
  pack-objects: drop unused rev_info parameters
  name-rev: drop unused parameters from is_better_name()
  mktree: drop unused length parameter
  wt-status: drop unused status parameter
  read-cache: drop unused parameter from threaded load
  clone: drop dest parameter from copy_alternates()
  submodule: drop unused prefix parameter from some functions
  builtin: consistently pass cmd_* prefix to parse_options
  cmd_{read,write}_tree: rename "unused" variable that is used
2019-06-13 13:19:34 -07:00
Junio C Hamano
195d799955 Merge branch 'nd/submodule-helper-incomplete-line-fix'
Typofix.

* nd/submodule-helper-incomplete-line-fix:
  submodule--helper: add a missing \n
2019-05-19 16:45:27 +09:00
Jeff King
cf7a901ae4 submodule: drop unused prefix parameter from some functions
We stopped using the "prefix" parameter of
relocate_single_git_dir_into_superproject() and its callers in
202275b96b (submodule.c: get_super_prefix_or_empty, 2017-03-14), where
we switched to using the environment global directly.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-13 14:22:54 +09:00
Nguyễn Thái Ngọc Duy
1a8787144d submodule--helper: add a missing \n
This is a complete line. We're not expecting the next function to add
anything to the same line.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-05-08 19:36:19 +09:00
Junio C Hamano
f1c9f6ce38 Merge branch 'nd/submodule-foreach-quiet'
"git submodule foreach <command> --quiet" did not pass the option
down correctly, which has been corrected.

* nd/submodule-foreach-quiet:
  submodule foreach: fix "<command> --quiet" not being respected
2019-04-25 16:41:24 +09:00
Junio C Hamano
01f8d78887 Merge branch 'dl/submodule-set-branch'
"git submodule" learns "set-branch" subcommand that allows the
submodule.*.branch settings to be modified.

* dl/submodule-set-branch:
  submodule: teach set-branch subcommand
  submodule--helper: teach config subcommand --unset
  git-submodule.txt: "--branch <branch>" option defaults to 'master'
2019-04-25 16:41:18 +09:00
Nguyễn Thái Ngọc Duy
a282f5a906 submodule foreach: fix "<command> --quiet" not being respected
Robin reported that

    git submodule foreach --quiet git pull --quiet origin

is not really quiet anymore [1]. "git pull" behaves as if --quiet is not
given.

This happens because parseopt in submodule--helper will try to parse
both --quiet options as if they are foreach's options, not git-pull's.
The parsed options are removed from the command line. So when we do
pull later, we execute just this

    git pull origin

When calling submodule helper, adding "--" in front of "git pull" will
stop parseopt for parsing options that do not really belong to
submodule--helper foreach.

PARSE_OPT_KEEP_UNKNOWN is removed as a safety measure. parseopt should
never see unknown options or something has gone wrong. There are also
a couple usage string update while I'm looking at them.

While at it, I also add "--" to other subcommands that pass "$@" to
submodule--helper. "$@" in these cases are paths and less likely to be
--something-like-this. But the point still stands, git-submodule has
parsed and classified what are options, what are paths. submodule--helper
should never consider paths passed by git-submodule to be options even
if they look like one.

The test case is also contributed by Robin.

[1] it should be quiet before fc1b9243cd (submodule: port submodule
    subcommand 'foreach' from shell to C, 2018-05-10) because parseopt
    can't accidentally eat options then.

Reported-by: Robin H. Johnson <robbat2@gentoo.org>
Tested-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-04-15 11:58:42 +09:00
Jeff King
c5c33504c9 report_path_error(): drop unused prefix parameter
This hasn't been used since 17ddc66e70 (convert report_path_error to
take struct pathspec, 2013-07-14), as the names in the struct will have
already been prefixed when they were parsed.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-20 18:34:09 +09:00
Jeff Hostetler
ee4512ed48 trace2: create new combined trace facility
Create a new unified tracing facility for git.  The eventual intent is to
replace the current trace_printf* and trace_performance* routines with a
unified set of git_trace2* routines.

In addition to the usual printf-style API, trace2 provides higer-level
event verbs with fixed-fields allowing structured data to be written.
This makes post-processing and analysis easier for external tools.

Trace2 defines 3 output targets.  These are set using the environment
variables "GIT_TR2", "GIT_TR2_PERF", and "GIT_TR2_EVENT".  These may be
set to "1" or to an absolute pathname (just like the current GIT_TRACE).

* GIT_TR2 is intended to be a replacement for GIT_TRACE and logs command
  summary data.

* GIT_TR2_PERF is intended as a replacement for GIT_TRACE_PERFORMANCE.
  It extends the output with columns for the command process, thread,
  repo, absolute and relative elapsed times.  It reports events for
  child process start/stop, thread start/stop, and per-thread function
  nesting.

* GIT_TR2_EVENT is a new structured format. It writes event data as a
  series of JSON records.

Calls to trace2 functions log to any of the 3 output targets enabled
without the need to call different trace_printf* or trace_performance*
routines.

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-22 15:27:59 -08:00
Denton Liu
c89c494240 submodule--helper: teach config subcommand --unset
This teaches submodule--helper config the --unset option, which removes
the specified configuration key from the .gitmodule file.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-08 12:02:58 -08:00
Junio C Hamano
7589e63648 Merge branch 'nd/the-index-final'
The assumption to work on the single "in-core index" instance has
been reduced from the library-ish part of the codebase.

* nd/the-index-final:
  cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch
  read-cache.c: remove the_* from index_has_changes()
  merge-recursive.c: remove implicit dependency on the_repository
  merge-recursive.c: remove implicit dependency on the_index
  sha1-name.c: remove implicit dependency on the_index
  read-cache.c: replace update_index_if_able with repo_&
  read-cache.c: kill read_index()
  checkout: avoid the_index when possible
  repository.c: replace hold_locked_index() with repo_hold_locked_index()
  notes-utils.c: remove the_repository references
  grep: use grep_opt->repo instead of explict repo argument
2019-02-06 22:05:23 -08:00
Junio C Hamano
5d3635db19 Merge branch 'sb/submodule-recursive-fetch-gets-the-tip'
"git fetch --recurse-submodules" may not fetch the necessary commit
that is bound to the superproject, which is getting corrected.

* sb/submodule-recursive-fetch-gets-the-tip:
  fetch: ensure submodule objects fetched
  submodule.c: fetch in submodules git directory instead of in worktree
  submodule: migrate get_next_submodule to use repository structs
  repository: repo_submodule_init to take a submodule struct
  submodule: store OIDs in changed_submodule_names
  submodule.c: tighten scope of changed_submodule_names struct
  submodule.c: sort changed_submodule_names before searching it
  submodule.c: fix indentation
  sha1-array: provide oid_array_filter
2019-01-29 12:47:54 -08:00
Nguyễn Thái Ngọc Duy
f8adbec9fe cache.h: flip NO_THE_INDEX_COMPATIBILITY_MACROS switch
By default, index compat macros are off from now on, because they
could hide the_index dependency.

Only those in builtin can use it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-24 11:55:06 -08:00
Junio C Hamano
3942920966 Merge branch 'sb/submodule-unset-core-worktree-when-worktree-is-lost'
The core.worktree setting in a submodule repository should not be
pointing at a directory when the submodule loses its working tree
(e.g. getting deinit'ed), but the code did not properly maintain
this invariant.

* sb/submodule-unset-core-worktree-when-worktree-is-lost:
  submodule deinit: unset core.worktree
  submodule--helper: fix BUG message in ensure_core_worktree
  submodule: unset core.worktree if no working tree is present
  submodule update: add regression test with old style setups
2019-01-18 13:49:53 -08:00
Junio C Hamano
4744d03a47 Merge branch 'sb/submodule-fetchjobs-default-to-one'
"git submodule update" ought to use a single job unless asked, but
by mistake used multiple jobs, which has been fixed.

* sb/submodule-fetchjobs-default-to-one:
  submodule update: run at most one fetch job unless otherwise set
2019-01-18 13:49:52 -08:00
Junio C Hamano
3b2f8a02fa Merge branch 'jk/loose-object-cache'
Code clean-up with optimization for the codepath that checks
(non-)existence of loose objects.

* jk/loose-object-cache:
  odb_load_loose_cache: fix strbuf leak
  fetch-pack: drop custom loose object cache
  sha1-file: use loose object cache for quick existence check
  object-store: provide helpers for loose_objects_cache
  sha1-file: use an object_directory for the main object dir
  handle alternates paths the same as the main object dir
  sha1_file_name(): overwrite buffer instead of appending
  rename "alternate_object_database" to "object_directory"
  submodule--helper: prefer strip_suffix() to ends_with()
  fsck: do not reuse child_process structs
2019-01-04 13:33:32 -08:00
Stefan Beller
8eda5efa12 submodule deinit: unset core.worktree
When a submodule is deinit'd, the working tree is gone, so the setting of
core.worktree is bogus. Unset it. As we covered the only other case in
which a submodule loses its working tree in the earlier step
(i.e. switching branches of top-level project to move to a commit that did
not have the submodule), this makes the code always maintain
core.worktree correctly unset when there is no working tree
for a submodule.

This re-introduces 984cd77ddb (submodule deinit: unset core.worktree,
2018-06-18), which was reverted as part of f178c13fda (Revert "Merge
branch 'sb/submodule-core-worktree'", 2018-09-07)

The whole series was reverted as the offending commit e98317508c
(submodule: ensure core.worktree is set after update, 2018-06-18)
was relied on by other commits such as 984cd77ddb.

Keep the offending commit reverted, but its functionality came back via
4d6d6ef1fc (Merge branch 'sb/submodule-update-in-c', 2018-09-17), such
that we can reintroduce 984cd77ddb now.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-26 10:39:54 -08:00
Stefan Beller
820a647e67 submodule--helper: fix BUG message in ensure_core_worktree
74d4731da1 (submodule--helper: replace connect-gitdir-workingtree by
ensure-core-worktree, 2018-08-13) missed to update the BUG message.
Fix it.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-26 10:38:55 -08:00
Junio C Hamano
e3a9d1aca9 submodule update: run at most one fetch job unless otherwise set
In a028a1930c (fetching submodules: respect `submodule.fetchJobs`
config option, 2016-02-29), we made sure to keep the default
behavior of fetching at most one submodule at once when not setting
the newly introduced `submodule.fetchJobs` config.

This regressed in 90efe595c5 (builtin/submodule--helper: factor
out submodule updating, 2018-08-03). Fix it.

Reported-by: Sjon Hortensius <sjon@parse.nl>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-14 11:54:56 +09:00
Stefan Beller
d5498e0871 repository: repo_submodule_init to take a submodule struct
When constructing a struct repository for a submodule for some revision
of the superproject where the submodule is not contained in the index,
it may not be present in the working tree currently either. In that
situation giving a 'path' argument is not useful. Upgrade the
repo_submodule_init function to take a struct submodule instead.
The submodule struct can be obtained via submodule_from_{path, name} or
an artificial submodule struct can be passed in.

While we are at it, rename the repository struct in the repo_submodule_init
function, which is to be initialized, to a name that is not confused with
the struct submodule as easily. Perform such renames in similar functions
as well.

Also move its documentation into the header file.

Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-12-05 11:42:32 +09:00
Junio C Hamano
abb4824d13 Merge branch 'ao/submodule-wo-gitmodules-checked-out'
The submodule support has been updated to read from the blob at
HEAD:.gitmodules when the .gitmodules file is missing from the
working tree.

* ao/submodule-wo-gitmodules-checked-out:
  t/helper: add test-submodule-nested-repo-config
  submodule: support reading .gitmodules when it's not in the working tree
  submodule: add a helper to check if it is safe to write to .gitmodules
  t7506: clean up .gitmodules properly before setting up new scenario
  submodule: use the 'submodule--helper config' command
  submodule--helper: add a new 'config' subcommand
  t7411: be nicer to future tests and really clean things up
  t7411: merge tests 5 and 6
  submodule: factor out a config_set_in_gitmodules_file_gently function
  submodule: add a print_config_from_gitmodules() helper
2018-11-13 22:37:22 +09:00