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2018-09-17Merge branch 'sb/submodule-update-in-c'Libravatar Junio C Hamano1-18/+6
"git submodule update" is getting rewritten piece-by-piece into C. * sb/submodule-update-in-c: submodule--helper: introduce new update-module-mode helper submodule--helper: replace connect-gitdir-workingtree by ensure-core-worktree builtin/submodule--helper: factor out method to update a single submodule builtin/submodule--helper: store update_clone information in a struct builtin/submodule--helper: factor out submodule updating git-submodule.sh: rename unused variables git-submodule.sh: align error reporting for update mode to use path
2018-09-07Revert "Merge branch 'sb/submodule-core-worktree'"Libravatar Jonathan Nieder1-5/+0
This reverts commit 7e25437d35a70791b345872af202eabfb3e1a8bc, reversing changes made to 00624d608cc69bd62801c93e74d1ea7a7ddd6598. v2.19.0-rc0~165^2~1 (submodule: ensure core.worktree is set after update, 2018-06-18) assumes an "absorbed" submodule layout, where the submodule's Git directory is in the superproject's .git/modules/ directory and .git in the submodule worktree is a .git file pointing there. In particular, it uses $GIT_DIR/modules/$name to find the submodule to find out whether it already has core.worktree set, and it uses connect_work_tree_and_git_dir if not, resulting in fatal: could not open sub/.git for writing The context behind that patch: v2.19.0-rc0~165^2~2 (submodule: unset core.worktree if no working tree is present, 2018-06-12) unsets core.worktree when running commands like "git checkout --recurse-submodules" to switch to a branch without the submodule. If a user then uses "git checkout --no-recurse-submodules" to switch back to a branch with the submodule and runs "git submodule update", this patch is needed to ensure that commands using the submodule directly are aware of the path to the worktree. It is late in the release cycle, so revert the whole 3-patch series. We can try again later for 2.20. Reported-by: Allan Sandfeld Jensen <allan.jensen@qt.io> Helped-by: Stefan Beller <sbeller@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-20Merge branch 'sb/pull-rebase-submodule'Libravatar Junio C Hamano1-0/+3
"git pull --rebase -v" in a repository with a submodule barfed as an intermediate process did not understand what "-v(erbose)" flag meant, which has been fixed. * sb/pull-rebase-submodule: git-submodule.sh: accept verbose flag in cmd_update to be non-quiet
2018-08-14submodule--helper: introduce new update-module-mode helperLibravatar Stefan Beller1-15/+1
This chews off a bit of the shell part of the update command in git-submodule.sh. When writing the C code, keep in mind that the submodule--helper part will go away eventually and we want to have a C function that is able to determine the submodule update strategy, it as a nicety, make determine_submodule_update_strategy accessible for arbitrary repositories. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-14submodule--helper: replace connect-gitdir-workingtree by ensure-core-worktreeLibravatar Stefan Beller1-5/+2
e98317508c0 (submodule: ensure core.worktree is set after update, 2018-06-18) was overly aggressive in calling connect_work_tree_and_git_dir as that ensures both the 'core.worktree' configuration is set as well as setting up correct gitlink file pointing at the git directory. We do not need to check for the gitlink in this part of the cmd_update in git-submodule.sh, as the initial call to update-clone will have ensured that. So we can reduce the work to only (check and potentially) set the 'core.worktree' setting. While at it move the check from shell to C as that proves to be useful in a follow up patch, as we do not need the 'name' in shell now. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-14git-submodule.sh: accept verbose flag in cmd_update to be non-quietLibravatar Stefan Beller1-0/+3
In a56771a668d (builtin/pull: respect verbosity settings in submodules, 2018-01-25), we made sure to pass on both quiet and verbose flag from builtin/pull.c to the submodule shell script. However git-submodule doesn't understand a verbose flag, which results in a bug when invoking git pull --recurse-submodules -v [...] There are a few different approaches to fix this bug: 1) rewrite 'argv_push_verbosity' or its caller in builtin/pull.c to cap opt_verbosity at 0. Then 'argv_push_verbosity' would only add '-q' if any. 2) Have a flag in 'argv_push_verbosity' that specifies if we allow adding -q or -v (or both). 3) Add -v to git-submodule.sh and make it a no-op (1) seems like a maintenance burden: What if we add code after the submodule operations or move submodule operations higher up, then we have altered the opt_verbosity setting further down the line in builtin/pull.c. (2) seems like it could work reasonably well without more regressions (3) seems easiest to implement as well as actually is a feature with the last-one-wins rule of passing flags to Git commands. Reported-by: Jochen Kühner Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-03git-submodule.sh: rename unused variablesLibravatar Stefan Beller1-2/+2
The 'mode' variable is not used in cmd_update for its original purpose, rename it to 'dummy' as it only serves the purpose to abort quickly documenting this knowledge. The variable 'stage' is also not used any more in cmd_update, so remove it. This went unnoticed as first each function used the commonly used submodule listing, which was converted in 74703a1e4df (submodule: rewrite `module_list` shell function in C, 2015-09-02). When cmd_update was using its own function starting in 48308681b07 (git submodule update: have a dedicated helper for cloning, 2016-02-29), its removal was missed. A later patch in this series also touches the communication between the submodule helper and git-submodule.sh, but let's have this as a preparatory patch, as it eases the next patch, which stores the raw data instead of the line printed for this communication. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-03git-submodule.sh: align error reporting for update mode to use pathLibravatar Stefan Beller1-1/+1
All other error messages in cmd_update are reporting the submodule based on its path, so let's do that for invalid update modes, too. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-18Merge branch 'sb/submodule-core-worktree'Libravatar Junio C Hamano1-0/+5
"git submodule" did not correctly adjust core.worktree setting that indicates whether/where a submodule repository has its associated working tree across various state transitions, which has been corrected. * sb/submodule-core-worktree: submodule deinit: unset core.worktree submodule: ensure core.worktree is set after update submodule: unset core.worktree if no working tree is present
2018-06-25Merge branch 'pc/submodule-helper-foreach'Libravatar Junio C Hamano1-39/+1
The bulk of "git submodule foreach" has been rewritten in C. * pc/submodule-helper-foreach: submodule: port submodule subcommand 'foreach' from shell to C submodule foreach: document variable '$displaypath' submodule foreach: document '$sm_path' instead of '$path' submodule foreach: correct '$path' in nested submodules from a subdirectory
2018-06-19submodule: ensure core.worktree is set after updateLibravatar Stefan Beller1-0/+5
Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-30Merge branch 'sb/submodule-update-try-harder'Libravatar Junio C Hamano1-1/+1
"git submodule update" attempts two different kinds of "git fetch" against the upstream repository to grab a commit bound at the submodule's path, but it incorrectly gave up if the first kind (i.e. a normal fetch) failed, making the second "last resort" one (i.e. fetching an exact commit object by object name) ineffective. This has been corrected. * sb/submodule-update-try-harder: git-submodule.sh: try harder to fetch a submodule
2018-05-30Merge branch 'cf/submodule-progress-dissociate'Libravatar Junio C Hamano1-5/+16
"git submodule update" and "git submodule add" supported the "--reference" option to borrow objects from a neighbouring local repository like "git clone" does, but lacked the more recent invention "--dissociate". Also "git submodule add" has been taught to take the "--progress" option. * cf/submodule-progress-dissociate: submodule: add --dissociate option to add/update commands submodule: add --progress option to add command submodule: clean up substitutions in script
2018-05-22Sync with Git 2.16.4Libravatar Junio C Hamano1-0/+5
* maint-2.16: Git 2.16.4 Git 2.15.2 Git 2.14.4 Git 2.13.7 verify_path: disallow symlinks in .gitmodules update-index: stat updated files earlier verify_dotfile: mention case-insensitivity in comment verify_path: drop clever fallthrough skip_prefix: add case-insensitive variant is_{hfs,ntfs}_dotgitmodules: add tests is_ntfs_dotgit: match other .git files is_hfs_dotgit: match other .git files is_ntfs_dotgit: use a size_t for traversing string submodule-config: verify submodule names as paths
2018-05-22Sync with Git 2.15.2Libravatar Junio C Hamano1-0/+5
* maint-2.15: Git 2.15.2 Git 2.14.4 Git 2.13.7 verify_path: disallow symlinks in .gitmodules update-index: stat updated files earlier verify_dotfile: mention case-insensitivity in comment verify_path: drop clever fallthrough skip_prefix: add case-insensitive variant is_{hfs,ntfs}_dotgitmodules: add tests is_ntfs_dotgit: match other .git files is_hfs_dotgit: match other .git files is_ntfs_dotgit: use a size_t for traversing string submodule-config: verify submodule names as paths
2018-05-22Sync with Git 2.13.7Libravatar Junio C Hamano1-0/+5
* maint-2.13: Git 2.13.7 verify_path: disallow symlinks in .gitmodules update-index: stat updated files earlier verify_dotfile: mention case-insensitivity in comment verify_path: drop clever fallthrough skip_prefix: add case-insensitive variant is_{hfs,ntfs}_dotgitmodules: add tests is_ntfs_dotgit: match other .git files is_hfs_dotgit: match other .git files is_ntfs_dotgit: use a size_t for traversing string submodule-config: verify submodule names as paths
2018-05-21submodule-config: verify submodule names as pathsLibravatar Jeff King1-0/+5
Submodule "names" come from the untrusted .gitmodules file, but we blindly append them to $GIT_DIR/modules to create our on-disk repo paths. This means you can do bad things by putting "../" into the name (among other things). Let's sanity-check these names to avoid building a path that can be exploited. There are two main decisions: 1. What should the allowed syntax be? It's tempting to reuse verify_path(), since submodule names typically come from in-repo paths. But there are two reasons not to: a. It's technically more strict than what we need, as we really care only about breaking out of the $GIT_DIR/modules/ hierarchy. E.g., having a submodule named "foo/.git" isn't actually dangerous, and it's possible that somebody has manually given such a funny name. b. Since we'll eventually use this checking logic in fsck to prevent downstream repositories, it should be consistent across platforms. Because verify_path() relies on is_dir_sep(), it wouldn't block "foo\..\bar" on a non-Windows machine. 2. Where should we enforce it? These days most of the .gitmodules reads go through submodule-config.c, so I've put it there in the reading step. That should cover all of the C code. We also construct the name for "git submodule add" inside the git-submodule.sh script. This is probably not a big deal for security since the name is coming from the user anyway, but it would be polite to remind them if the name they pick is invalid (and we need to expose the name-checker to the shell anyway for our test scripts). This patch issues a warning when reading .gitmodules and just ignores the related config entry completely. This will generally end up producing a sensible error, as it works the same as a .gitmodules file which is missing a submodule entry (so "submodule update" will barf, but "git clone --recurse-submodules" will print an error but not abort the clone. There is one minor oddity, which is that we print the warning once per malformed config key (since that's how the config subsystem gives us the entries). So in the new test, for example, the user would see three warnings. That's OK, since the intent is that this case should never come up outside of malicious repositories (and then it might even benefit the user to see the message multiple times). Credit for finding this vulnerability and the proof of concept from which the test script was adapted goes to Etienne Stalmans. Signed-off-by: Jeff King <peff@peff.net>
2018-05-22submodule: add --dissociate option to add/update commandsLibravatar Casey Fitzpatrick1-1/+9
Add --dissociate option to add and update commands, both clone helper commands that already have the --reference option --dissociate pairs with. Signed-off-by: Casey Fitzpatrick <kcghost@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22submodule: add --progress option to add commandLibravatar Casey Fitzpatrick1-1/+4
The '--progress' was introduced in 72c5f88311d (clone: pass --progress decision to recursive submodules, 2016-09-22) to fix the progress reporting of the clone command. Also add the progress option to the 'submodule add' command. The update command already supports the progress flag, but it is not documented. Signed-off-by: Casey Fitzpatrick <kcghost@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-22submodule: clean up substitutions in scriptLibravatar Casey Fitzpatrick1-4/+4
'recommend_shallow' and 'jobs' variables do not need quotes. They only hold a single token value, and even if they were multi-token it is likely we would want them split at IFS rather than pass a single string. 'progress' is a boolean value. Treat it like the other boolean values in the script by using a substitution. Signed-off-by: Casey Fitzpatrick <kcghost@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-16git-submodule.sh: try harder to fetch a submoduleLibravatar Stefan Beller1-1/+1
This is the logical continuum of fb43e31f2b4 (submodule: try harder to fetch needed sha1 by direct fetching sha1, 2016-02-23) and fixes it as some assumptions were not correct. The commit states: > If $sha1 was not part of the default fetch ... fail ourselves here > assumes that the fetch_in_submodule only fails when the serverside does > not support fetching by sha1. There are other failures, why such a fetch may fail, such as fatal: Couldn't find remote ref HEAD which can happen if the remote side doesn't advertise HEAD and we do not have a local fetch refspec. Not advertising HEAD is allowed by the protocol spec and would happen, if HEAD points at an unborn branch for example. Not having a local fetch refspec can happen when submodules are fetched shallowly, as then git-clone doesn't setup a fetch refspec. So do try even harder for a submodule by ignoring the exit code of the first fetch and rather relying on the following is_tip_reachable to see if we try fetching again. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-11submodule: port submodule subcommand 'foreach' from shell to CLibravatar Prathamesh Chavan1-38/+1
This aims to make git-submodule foreach a builtin. 'foreach' is ported to the submodule--helper, and submodule--helper is called from git-submodule.sh. Helped-by: Brandon Williams <bmwill@google.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-09submodule foreach: correct '$path' in nested submodules from a subdirectoryLibravatar Prathamesh Chavan1-1/+0
When running 'git submodule foreach --recursive' from a subdirectory of your repository, nested submodules get a bogus value for $path: For a submodule 'sub' that contains a nested submodule 'nested', running 'git -C dir submodule foreach echo $path' from the root of the superproject would report path='../nested' for the nested submodule. The first part '../' is derived from the logic computing the relative path from $pwd to the root of the superproject. The second part is the submodule path inside the submodule. This value is of little use and is hard to document. Also, in git-submodule.txt, $path is documented to be the "name of the submodule directory relative to the superproject", but "the superproject" is ambiguous. To resolve both these issues, we could: (a) Change "the superproject" to "its immediate superproject", so $path would be "nested" instead of "../nested". (b) Change "the superproject" to "the superproject the original command was run from", so $path would be "sub/nested" instead of "../nested". (c) Change "the superproject" to "the directory the original command was run from", so $path would be "../sub/nested" instead of "../nested". The behavior for (c) was attempted to be introduced in 091a6eb0fe (submodule: drop the top-level requirement, 2013-06-16) with the intent for $path to be relative from $pwd to the submodule worktree, but that did not work for nested submodules, as the intermittent submodules were not included in the path. If we were to fix the meaning of the $path using (a), we would break any existing submodule user that runs foreach from non-root of the superproject as the non-nested submodule '../sub' would change its path to 'sub'. If we were to fix the meaning of $path using (b), then we would break any user that uses nested submodules (even from the root directory) as the 'nested' would become 'sub/nested'. If we were to fix the meaning of $path using (c), then we would break the same users as in (b) as 'nested' would become 'sub/nested' from the root directory of the superproject. All groups can be found in the wild. The author has no data if one group outweighs the other by large margin, and offending each one seems equally bad at first. However in the authors imagination it is better to go with (a) as running from a sub directory sounds like it is carried out by a human rather than by some automation task. With a human on the keyboard the feedback loop is short and the changed behavior can be adapted to quickly unlike some automation that can break silently. Discussed-with: Ramsay Jones <ramsay@ramsayjones.plus.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> 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>
2018-01-16submodule: port submodule subcommand 'deinit' from shell to CLibravatar Prathamesh Chavan1-54/+1
The same mechanism is used even for porting this submodule subcommand, as used in the ported subcommands till now. The function cmd_deinit in split up after porting into four functions: module_deinit(), for_each_listed_submodule(), deinit_submodule() and deinit_submodule_cb(). Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-16submodule: port submodule subcommand 'sync' from shell to CLibravatar Prathamesh Chavan1-56/+1
Port the submodule subcommand 'sync' from shell to C using the same mechanism as that used for porting submodule subcommand 'status'. Hence, here the function cmd_sync() is ported from shell to C. This is done by introducing four functions: module_sync(), sync_submodule(), sync_submodule_cb() and print_default_remote(). The function print_default_remote() is introduced for getting the default remote as stdout. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-07submodule: port submodule subcommand 'status' from shell to CLibravatar Prathamesh Chavan1-60/+1
This aims to make git-submodule 'status' a built-in. Hence, the function cmd_status() is ported from shell to C. This is done by introducing four functions: module_status(), submodule_status_cb(), submodule_status() and print_status(). The function module_status() acts as the front-end of the subcommand. It parses subcommand's options and then calls the function module_list_compute() for computing the list of submodules. Then this functions calls for_each_listed_submodule() looping through the list obtained. Then for_each_listed_submodule() calls submodule_status_cb() for each of the submodule in its list. The function submodule_status_cb() calls submodule_status() after passing appropriate arguments to the funciton. Function submodule_status() is responsible for generating the status each submodule it is called for, and then calls print_status(). Finally, the function print_status() handles the printing of submodule's status. Function set_name_rev() is also ported from git-submodule to the submodule--helper builtin function compute_rev_name(), which now generates the value of the revision name as required. Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored-by: Stefan Beller <sbeller@google.com> Signed-off-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-10Merge branch 'sb/submodule-parallel-update' into maintLibravatar Junio C Hamano1-1/+0
Code clean-up. * sb/submodule-parallel-update: submodule.sh: remove unused variable
2017-08-23Merge branch 'sb/submodule-parallel-update'Libravatar Junio C Hamano1-1/+0
Code clean-up. * sb/submodule-parallel-update: submodule.sh: remove unused variable
2017-08-17submodule.sh: remove unused variableLibravatar Stefan Beller1-1/+0
This could have been part of 48308681b0 (git submodule update: have a dedicated helper for cloning, 2016-02-29). Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-07scripts: use "git foo" not "git-foo"Libravatar Michael Forney1-3/+3
We want to make sure that people who copy & paste code would see fewer instances of "git-foo". The use of these dashed forms have been discouraged since v1.6.0 days. Signed-off-by: Michael Forney <mforney@mforney.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15add: warn when adding an embedded repositoryLibravatar Jeff King1-2/+3
It's an easy mistake to add a repository inside another repository, like: git clone $url git add . The resulting entry is a gitlink, but there's no matching .gitmodules entry. Trying to use "submodule init" (or clone with --recursive) doesn't do anything useful. Prior to v2.13, such an entry caused git-submodule to barf entirely. In v2.13, the entry is considered "inactive" and quietly ignored. Either way, no clone of your repository can do anything useful with the gitlink without the user manually adding the submodule config. In most cases, the user probably meant to either add a real submodule, or they forgot to put the embedded repository in their .gitignore file. Let's issue a warning when we see this case. There are a few things to note: - the warning will go in the git-add porcelain; anybody wanting to do low-level manipulation of the index is welcome to create whatever funny states they want. - we detect the case by looking for a newly added gitlink; updates via "git add submodule" are perfectly reasonable, and this avoids us having to investigate .gitmodules entirely - there's a command-line option to suppress the warning. This is needed for git-submodule itself (which adds the entry before adding any submodule config), but also provides a mechanism for other scripts doing submodule-like things. We could make this a hard error instead of a warning. However, we do add lots of sub-repos in our test suite. It's not _wrong_ to do so. It just creates a state where users may be surprised. Pointing them in the right direction with a gentle hint is probably the best option. There is a config knob that can disable the (long) hint. But I intentionally omitted a config knob to disable the warning entirely. Whether the warning is sensible or not is generally about context, not about the user's preferences. If there's a tool or workflow that adds gitlinks without matching .gitmodules, it should probably be taught about the new command-line option, rather than blanket-disabling the warning. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16submodule: prevent backslash expantion in submodule namesLibravatar Brandon Williams1-7/+7
When attempting to add a submodule with backslashes in its name 'git submodule' fails in a funny way. We can see that some of the backslashes are expanded resulting in a bogus path: git -C main submodule add ../sub\\with\\backslash fatal: repository '/tmp/test/sub\witackslash' does not exist fatal: clone of '/tmp/test/sub\witackslash' into submodule path To solve this, convert calls to 'read' to 'read -r' in git-submodule.sh in order to prevent backslash expantion in submodule names. Reported-by: Joachim Durchholz <jo@durchholz.org> Signed-off-by: Brandon Williams <bmwill@google.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18submodule add: respect submodule.active and submodule.<name>.activeLibravatar Brandon Williams1-0/+14
In addition to adding submodule.<name>.url to the config, set submodule.<name>.active to true unless submodule.active is configured and the submodule's path matches the configured pathspec. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17submodule sync: use submodule--helper is-activeLibravatar Brandon Williams1-2/+2
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17submodule sync: skip work for inactive submodulesLibravatar Brandon Williams1-17/+21
Sync does some work determining what URLs should be used for a submodule but then throws this work away if the submodule isn't active. Instead perform the activity check earlier and skip inactive submodule in order to avoid doing unnecessary work. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17submodule status: use submodule--helper is-activeLibravatar Brandon Williams1-2/+1
Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-03Merge branch 'sb/submodule-update-initial-runs-custom-script'Libravatar Junio C Hamano1-1/+4
The user can specify a custom update method that is run when "submodule update" updates an already checked out submodule. This was ignored when checking the submodule out for the first time and we instead always just checked out the commit that is bound to the path in the superproject's index. * sb/submodule-update-initial-runs-custom-script: submodule update: run custom update script for initial populating as well
2017-02-02Merge branch 'sb/submodule-add-force'Libravatar Junio C Hamano1-2/+8
"git submodule add" used to be confused and refused to add a locally created repository; users can now use "--force" option to add them. * sb/submodule-add-force: submodule add: extend force flag to add existing repos
2017-01-26submodule update: run custom update script for initial populating as wellLibravatar Stefan Beller1-1/+4
In 1b4735d9f3 (submodule: no [--merge|--rebase] when newly cloned, 2011-02-17), all actions were defaulted to checkout for populating a submodule initially, because merging or rebasing makes no sense in that situation. Other commands however do make sense, such as the custom command that was added later (6cb5728c43, submodule update: allow custom command to update submodule working tree, 2013-07-03). I am unsure about the "none" command, as I can see an initial checkout there as a useful thing. On the other hand going strictly by our own documentation, we should do nothing in case of "none" as well, because the user asked for it. Reported-by: Han-Wen Nienhuys <hanwen@google.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-23Merge branch 'sb/submodule-init'Libravatar Junio C Hamano1-1/+1
Error message fix. * sb/submodule-init: submodule update --init: display correct path from submodule
2017-01-23Merge branch 'sb/submodule-embed-gitdir'Libravatar Junio C Hamano1-1/+2
Help-text fix. * sb/submodule-embed-gitdir: submodule absorbgitdirs: mention in docstring help
2017-01-12submodule update --init: display correct path from submoduleLibravatar Stefan Beller1-1/+1
In the submodule helper we did not correctly handled the display path for initializing submodules when both the submodule is inside a subdirectory as well as the command being invoked from a subdirectory (as viewed from the superproject). This was broken in 3604242f080, which was written at a time where there was no super-prefix available, so we abused the --prefix option for the same purpose and could get only one case right (the call from within a subdirectory, not the submodule being in a subdirectory). Test-provided-by: David Turner <novalis@novalis.org> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-12submodule absorbgitdirs: mention in docstring helpLibravatar Stefan Beller1-1/+2
This part was missing in f6f85861 (submodule: add absorb-git-dir function, 2016-12-12). Noticed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-10Merge branch 'sb/submodule-embed-gitdir'Libravatar Junio C Hamano1-1/+6
A new submodule helper "git submodule embedgitdirs" to make it easier to move embedded .git/ directory for submodules in a superproject to .git/modules/ (and point the latter with the former that is turned into a "gitdir:" file) has been added. * sb/submodule-embed-gitdir: worktree: initialize return value for submodule_uses_worktrees submodule: add absorb-git-dir function move connect_work_tree_and_git_dir to dir.h worktree: check if a submodule uses worktrees test-lib-functions.sh: teach test_commit -C <dir> submodule helper: support super prefix submodule: use absolute path for computing relative path connecting
2016-12-27Merge branch 'bw/transport-protocol-policy'Libravatar Junio C Hamano1-8/+4
Finer-grained control of what protocols are allowed for transports during clone/fetch/push have been enabled via a new configuration mechanism. * bw/transport-protocol-policy: http: respect protocol.*.allow=user for http-alternates transport: add from_user parameter to is_transport_allowed http: create function to get curl allowed protocols transport: add protocol policy config option http: always warn if libcurl version is too old lib-proto-disable: variable name fix
2016-12-15transport: add protocol policy config optionLibravatar Brandon Williams1-8/+4
Previously the `GIT_ALLOW_PROTOCOL` environment variable was used to specify a whitelist of protocols to be used in clone/fetch/push commands. This patch introduces new configuration options for more fine-grained control for allowing/disallowing protocols. This also has the added benefit of allowing easier construction of a protocol whitelist on systems where setting an environment variable is non-trivial. Now users can specify a policy to be used for each type of protocol via the 'protocol.<name>.allow' config option. A default policy for all unconfigured protocols can be set with the 'protocol.allow' config option. If no user configured default is made git will allow known-safe protocols (http, https, git, ssh, file), disallow known-dangerous protocols (ext), and have a default policy of `user` for all other protocols. The supported policies are `always`, `never`, and `user`. The `user` policy can be used to configure a protocol to be usable when explicitly used by a user, while disallowing it for commands which run clone/fetch/push commands without direct user intervention (e.g. recursive initialization of submodules). Commands which can potentially clone/fetch/push from untrusted repositories without user intervention can export `GIT_PROTOCOL_FROM_USER` with a value of '0' to prevent protocols configured to the `user` policy from being used. Fix remote-ext tests to use the new config to allow the ext protocol to be tested. Based on a patch by Jeff King <peff@peff.net> Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-12submodule: add absorb-git-dir functionLibravatar Stefan Beller1-1/+6
When a submodule has its git dir inside the working dir, the submodule support for checkout that we plan to add in a later patch will fail. Add functionality to migrate the git directory to be absorbed into the superprojects git directory. The newly added code in this patch is structured such that other areas of Git can also make use of it. The code in the submodule--helper is a mere wrapper and option parser for the function `absorb_git_dir_into_superproject`, that takes care of embedding the submodules git directory into the superprojects git dir. That function makes use of the more abstract function for this use case `relocate_gitdir`, which can be used by e.g. the worktree code eventually to move around a git directory. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-11-29submodule add: extend force flag to add existing reposLibravatar Stefan Beller1-2/+8
Currently the force flag in `git submodule add` takes care of possibly ignored files or when a name collision occurs. However there is another situation where submodule add comes in handy: When you already have a gitlink recorded, but no configuration was done (i.e. no .gitmodules file nor any entry in .git/config) and you want to generate these config entries. For this situation allow `git submodule add` to proceed if there is already a submodule at the given path in the index. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-22clone: pass --progress decision to recursive submodulesLibravatar Jeff King1-0/+5
When cloning with "--recursive", we'd generally expect submodules to show progress reports if the main clone did, too. In older versions of git, this mostly worked out of the box. Since we show progress by default when stderr is a tty, and since the child clones inherit the parent stderr, then both processes would come to the same decision by default. If the parent clone was asked for "--quiet", we passed down "--quiet" to the child. However, if stderr was not a tty and the user specified "--progress", we did not propagate this to the child. That's a minor bug, but things got much worse when we switched recently to submodule--helper's update_clone command. With that change, the stderr of the child clones are always connected to a pipe, and we never output progress at all. This patch teaches git-submodule and git-submodule--helper how to pass down an explicit "--progress" flag when cloning. The clone command then decides to propagate that flag based on the cloning decision made earlier (which takes into account isatty(2) of the parent process, existing --progress or --quiet flags, etc). Since the child processes always run without a tty on stderr, we don't have to worry about passing an explicit "--no-progress"; it's the default for them. This fixes the recent loss of progress during recursive clones. And as a bonus, it makes: git clone --recursive --progress ... 2>&1 | cat work by triggering progress explicitly in the children. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-09-08Merge branch 'sb/submodule-clone-rr'Libravatar Junio C Hamano1-1/+1
"git clone --resurse-submodules --reference $path $URL" is a way to reduce network transfer cost by borrowing objects in an existing $path repository when cloning the superproject from $URL; it learned to also peek into $path for presense of corresponding repositories of submodules and borrow objects from there when able. * sb/submodule-clone-rr: clone: recursive and reference option triggers submodule alternates clone: implement optional references clone: clarify option_reference as required clone: factor out checking for an alternate path submodule--helper update-clone: allow multiple references submodule--helper module-clone: allow multiple references t7408: merge short tests, factor out testing method t7408: modernize style