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2010-08-22Merge branch 'hv/submodule-find-ff-merge'Junio C Hamano
* hv/submodule-find-ff-merge: Implement automatic fast-forward merge for submodules setup_revisions(): Allow walking history in a submodule Teach ref iteration module about submodules Conflicts: submodule.c
2010-08-09Add the 'diff.ignoreSubmodules' config settingJohannes Schindelin
When you have a lot of submodules checked out, the time penalty to check for dirty submodules can easily imply a multiplication of the total time by the factor 20. This makes the difference between almost instantaneous (< 2 seconds) and unbearably slow (> 50 seconds) here, since the disk caches are constantly overloaded. To this end, the submodule.*.ignore config option was introduced, but it is per-submodule. This commit introduces a global config setting to set a default (porcelain) value for the --ignore-submodules option, keeping the default at 'none'. It can be overridden by the submodule.*.ignore setting and by the --ignore-submodules option. Incidentally, this commit fixes an issue with the overriding logic: multiple --ignore-submodules options would not clear the previously set flags. While at it, fix a typo in the documentation for submodule.*.ignore. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09Submodules: Use "ignore" settings from .gitmodules too for diff and statusJens Lehmann
The .gitmodules file is parsed for "submodule.<name>.ignore" entries before looking for them in .git/config. Thus settings found in .git/config will override those from .gitmodules, thereby allowing the local developer to ignore settings given by the remote side while also letting upstream set defaults for those users who don't have special needs. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-08-09Submodules: Add the new "ignore" config option for diff and statusJens Lehmann
The new "ignore" config option controls the default behavior for "git status" and the diff family. It specifies under what circumstances they consider submodules as modified and can be set separately for each submodule. The command line option "--ignore-submodules=" has been extended to accept the new parameter "none" for both status and diff. Users that chose submodules to get rid of long work tree scanning times might want to set the "dirty" option for those submodules. This brings back the pre 1.7.0 behavior, where submodule work trees were never scanned for modifications. By using "--ignore-submodules=none" on the command line the status and diff commands can be told to do a full scan. This option can be set to the following values (which have the same name and meaning as for the "--ignore-submodules" option of status and diff): "all": All changes to the submodule will be ignored. "dirty": Only differences of the commit recorded in the superproject and the submodules HEAD will be considered modifications, all changes to the work tree of the submodule will be ignored. When using this value, the submodule will not be scanned for work tree changes at all, leading to a performance benefit on large submodules. "untracked": Only untracked files in the submodules work tree are ignored, a changed HEAD and/or modified files in the submodule will mark it as modified. "none" (which is the default): Either untracked or modified files in a submodules work tree or a difference between the subdmodules HEAD and the commit recorded in the superproject will make it show up as changed. This value is added as a new parameter for the "--ignore-submodules" option of the diff family and "git status" so the user can override the settings in the configuration. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-07-07Implement automatic fast-forward merge for submodulesHeiko Voigt
This implements a simple merge strategy for submodule hashes. We check whether one side of the merge candidates is already contained in the other and then merge automatically. If both sides contain changes we search for a merge in the submodule. In case a single one exists we check that out and suggest it as the merge resolution. A list of candidates is returned when we find multiple merges that contain both sides of the changes. This is useful for a workflow in which the developers can publish topic branches in submodules and a separate maintainer merges them. In case the developers always wait until their branch gets merged before tracking them in the superproject all merges of branches that contain submodule changes will be resolved automatically. If developers choose to track their feature branch the maintainer might get a conflict but git will search the submodule for a merge and suggest it/them as a resolution. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-06-25Add the option "--ignore-submodules" to "git status"Jens Lehmann
In some use cases it is not desirable that "git status" considers submodules that only contain untracked content as dirty. This may happen e.g. when the submodule is not under the developers control and not all build generated files have been added to .gitignore by the upstream developers. Using the "untracked" parameter for the "--ignore-submodules" option disables checking for untracked content and lets git diff report them as changed only when they have new commits or modified content. Sometimes it is not wanted to have submodules show up as changed when they just contain changes to their work tree (this was the behavior before 1.7.0). An example for that are scripts which just want to check for submodule commits while ignoring any changes to the work tree. Also users having large submodules known not to change might want to use this option, as the - sometimes substantial - time it takes to scan the submodule work tree(s) is saved when using the "dirty" parameter. And if you want to ignore any changes to submodules, you can now do that by using this option without parameters or with "all" (when the config option status.submodulesummary is set, using "all" will also suppress the output of the submodule summary). A new function handle_ignore_submodules_arg() is introduced to parse this option new to "git status" in a single location, as "git diff" already knew it. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-04-10Teach diff --submodule and status to handle .git files in submodulesJens Lehmann
The simple test for an existing .git directory gives an incorrect result if .git is a file that records "gitdir: overthere". So for submodules that use a .git file, "git status" and the diff family - when the "--submodule" option is given - did assume the submodule was not populated at all when a .git file was used, thus generating wrong output or no output at all. This is fixed by using read_gitfile_gently() to get the correct location of the .git directory. While at it, is_submodule_modified() was cleaned up to use the "dir" member of "struct child_process" instead of setting the GIT_WORK_TREE and GIT_DIR environment variables. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-14git status: ignoring untracked files must apply to submodules tooJens Lehmann
Since 1.7.0 submodules are considered dirty when they contain untracked files. But when git status is called with the "-uno" option, the user asked to ignore untracked files, so they must be ignored in submodules too. To achieve this, the new flag DIFF_OPT_IGNORE_UNTRACKED_IN_SUBMODULES is introduced. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-03-05git diff --submodule: Show detailed dirty status of submodulesJens Lehmann
When encountering a dirty submodule while doing "git diff --submodule" print an extra line for new untracked content and another for modified but already tracked content. And if the HEAD of the submodule is equal to the ref diffed against in the superproject, drop the output which would just show the same SHA1s and no commit message headlines. To achieve that, the dirty_submodule bitfield is expanded to two bits. The output of "git status" inside the submodule is parsed to set the according bits. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-02-25is_submodule_modified(): clear environment properlyGiuseppe Bilotta
Rather than only clearing GIT_INDEX_FILE, take the list of environment variables to clear from local_repo_env, appending the settings for GIT_DIR and GIT_WORK_TREE. Signed-off-by: Giuseppe Bilotta <giuseppe.bilotta@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-31Fix memory leak in submodule.cJens Lehmann
The strbuf used in add_submodule_odb() was never released. So for every submodule - populated or not - we leaked its object directory name when using "git diff*" with the --submodule option. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-30is_submodule_modified(): fix breakage with external GIT_INDEX_FILEv1.7.0-rc1Junio C Hamano
Even when the environment was given for the top-level process, checking in the submodule work tree should use the index file associated with the work tree of the submodule. Do not export it to the environment. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-25Teach diff --submodule that modified submodule directory is dirtyJens Lehmann
Since commit 8e08b4 git diff does append "-dirty" to the work tree side if the working directory of a submodule contains new or modified files. Lets do the same when the --submodule option is used. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-23Merge branch 'jl/submodule-diff'Junio C Hamano
* jl/submodule-diff: Performance optimization for detection of modified submodules git status: Show uncommitted submodule changes too when enabled Teach diff that modified submodule directory is dirty Show submodules as modified when they contain a dirty work tree
2010-01-17Show submodules as modified when they contain a dirty work treeJens Lehmann
Until now a submodule only then showed up as modified in the supermodule when the last commit in the submodule differed from the one in the index or the diffed against commit of the superproject. A dirty work tree containing new untracked or modified files in a submodule was undetectable when looking at it from the superproject. Now git status and git diff (against the work tree) in the superproject will also display submodules as modified when they contain untracked or modified files, even if the compared ref matches the HEAD of the submodule. Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Nanako Shiraishi <nanako3@lavabit.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-01-12submodule.c: mark file-local function staticJunio C Hamano
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-21submodule.c: Squelch a "use before assignment" warningDavid Aguilar
i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5493) compiler (and probably others) mistakenly thinks variable 'right' is used before assigned. Work around it by giving it a fake initialization. Signed-off-by: David Aguilar <davvid@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-31fixup tr/stash-format mergeJunio C Hamano
2009-10-20Add the --submodule option to the diff option familyJohannes Schindelin
When you use the option --submodule=log you can see the submodule summaries inlined in the diff, instead of not-quite-helpful SHA-1 pairs. The format imitates what "git submodule summary" shows. To do that, <path>/.git/objects/ is added to the alternate object databases (if that directory exists). This option was requested by Jens Lehmann at the GitTogether in Berlin. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>