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2017-05-04submodule: properly recurse for read-tree and checkoutLibravatar Stefan Beller1-1/+2
We forgot to prepare the submodule env, which is only a problem for nested submodules. See 2e5d6503bd (ls-files: fix recurse-submodules with nested submodules, 2017-04-13) for further explanation. To come up with a proper test for this, we'd need to look at nested submodules just as in that given commit. It turns out we're lucky and these tests already exist, but are marked as failing. We need to pass `--recurse-submodules` to read-tree additionally to make these tests pass. Passing that flag alone would not make the tests pass, such that this covers testing for the bug fix of the submodule env as well. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-04submodule: avoid auto-discovery in new working tree manipulator codeLibravatar Stefan Beller1-3/+3
All commands that are run in a submodule, are run in a correct setup, there is no need to prepare the environment without setting the GIT_DIR variable. By setting the GIT_DIR variable we fix issues as discussed in 10f5c52656 (submodule: avoid auto-discovery in prepare_submodule_repo_env(), 2016-09-01) Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-04submodule_move_head: reuse child_process structure for futher commandsLibravatar Stefan Beller1-6/+6
We do not need to declare another struct child_process, but we can just reuse the existing `cp` struct. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-23Merge branch 'sb/checkout-recurse-submodules'Libravatar Junio C Hamano1-2/+1
Code cleanup. * sb/checkout-recurse-submodules: submodule: remove a superfluous second check for the "new" variable
2017-04-19Merge branch 'nd/files-backend-git-dir'Libravatar Junio C Hamano1-0/+31
The "submodule" specific field in the ref_store structure is replaced with a more generic "gitdir" that can later be used also when dealing with ref_store that represents the set of refs visible from the other worktrees. * nd/files-backend-git-dir: (28 commits) refs.h: add a note about sorting order of for_each_ref_* t1406: new tests for submodule ref store t1405: some basic tests on main ref store t/helper: add test-ref-store to test ref-store functions refs: delete pack_refs() in favor of refs_pack_refs() files-backend: avoid ref api targeting main ref store refs: new transaction related ref-store api refs: add new ref-store api refs: rename get_ref_store() to get_submodule_ref_store() and make it public files-backend: replace submodule_allowed check in files_downcast() refs: move submodule code out of files-backend.c path.c: move some code out of strbuf_git_path_submodule() refs.c: make get_main_ref_store() public and use it refs.c: kill register_ref_store(), add register_submodule_ref_store() refs.c: flatten get_ref_store() a bit refs: rename lookup_ref_store() to lookup_submodule_ref_store() refs.c: introduce get_main_ref_store() files-backend: remove the use of git_path() files-backend: add and use files_ref_path() files-backend: add and use files_reflog_path() ...
2017-04-19Merge branch 'sb/submodule-rm-absorb'Libravatar Junio C Hamano1-2/+2
Error message fix. * sb/submodule-rm-absorb: submodule.c: add missing ' in error messages
2017-04-19Merge branch 'bw/push-options-recursively-to-submodules'Libravatar Junio C Hamano1-4/+70
"git push --recurse-submodules --push-option=<string>" learned to propagate the push option recursively down to pushes in submodules. * bw/push-options-recursively-to-submodules: push: propagate remote and refspec with --recurse-submodules submodule--helper: add push-check subcommand remote: expose parse_push_refspec function push: propagate push-options with --recurse-submodules push: unmark a local variable as static
2017-04-19Merge branch 'bc/object-id'Libravatar Junio C Hamano1-33/+33
Conversion from unsigned char [40] to struct object_id continues. * bc/object-id: Documentation: update and rename api-sha1-array.txt Rename sha1_array to oid_array Convert sha1_array_for_each_unique and for_each_abbrev to object_id Convert sha1_array_lookup to take struct object_id Convert remaining callers of sha1_array_lookup to object_id Make sha1_array_append take a struct object_id * sha1-array: convert internal storage for struct sha1_array to object_id builtin/pull: convert to struct object_id submodule: convert check_for_new_submodule_commits to object_id sha1_name: convert disambiguate_hint_fn to take object_id sha1_name: convert struct disambiguate_state to object_id test-sha1-array: convert most code to struct object_id parse-options-cb: convert sha1_array_append caller to struct object_id fsck: convert init_skiplist to struct object_id builtin/receive-pack: convert portions to struct object_id builtin/pull: convert portions to struct object_id builtin/diff: convert to struct object_id Convert GIT_SHA1_RAWSZ used for allocation to GIT_MAX_RAWSZ Convert GIT_SHA1_HEXSZ used for allocation to GIT_MAX_HEXSZ Define new hash-size constants for allocating memory
2017-04-19Merge branch 'sb/submodule-short-status'Libravatar Junio C Hamano1-32/+43
The output from "git status --short" has been extended to show various kinds of dirtyness in submodules differently; instead of to "M" for modified, 'm' and '?' can be shown to signal changes only to the working tree of the submodule but not the commit that is checked out. * sb/submodule-short-status: submodule.c: correctly handle nested submodules in is_submodule_modified short status: improve reporting for submodule changes submodule.c: stricter checking for submodules in is_submodule_modified submodule.c: port is_submodule_modified to use porcelain 2 submodule.c: convert is_submodule_modified to use strbuf_getwholeline submodule.c: factor out early loop termination in is_submodule_modified submodule.c: use argv_array in is_submodule_modified
2017-04-17submodule: remove a superfluous second check for the "new" variableLibravatar Sebastian Schuberth1-2/+1
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-16Merge branch 'sb/show-diff-for-submodule-in-diff-fix'Libravatar Junio C Hamano1-0/+1
"git diff --submodule=diff" learned to work better in a project with a submodule that in turn has its own submodules. * sb/show-diff-for-submodule-in-diff-fix: diff: submodule inline diff to initialize env array.
2017-04-16Merge branch 'jk/snprintf-cleanups'Libravatar Junio C Hamano1-1/+1
Code clean-up. * jk/snprintf-cleanups: daemon: use an argv_array to exec children gc: replace local buffer with git_path transport-helper: replace checked snprintf with xsnprintf convert unchecked snprintf into xsnprintf combine-diff: replace malloc/snprintf with xstrfmt replace unchecked snprintf calls with heap buffers receive-pack: print --pack-header directly into argv array name-rev: replace static buffer with strbuf create_branch: use xstrfmt for reflog message create_branch: move msg setup closer to point of use avoid using mksnpath for refs avoid using fixed PATH_MAX buffers for refs fetch: use heap buffer to format reflog tag: use strbuf to format tag header diff: avoid fixed-size buffer for patch-ids odb_mkstemp: use git_path_buf odb_mkstemp: write filename into strbuf do not check odb_mkstemp return value for errors
2017-04-13submodule.c: add missing ' in error messagesLibravatar Ralf Thielow1-2/+2
Signed-off-by: Ralf Thielow <ralf.thielow@gmail.com> Acked-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11push: propagate remote and refspec with --recurse-submodulesLibravatar Brandon Williams1-3/+60
Teach "push --recurse-submodules" to propagate, if given a name as remote, the provided remote and refspec recursively to the pushes performed in the submodules. The push will therefore only succeed if all submodules have a remote with such a name configured. Note that "push --recurse-submodules" with a path or URL as remote will not propagate the remote or refspec and instead use the default remote and refspec configured in the submodule, preserving the current behavior. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-11push: propagate push-options with --recurse-submodulesLibravatar Brandon Williams1-2/+11
Teach push --recurse-submodules to propagate push-options recursively to the pushes performed in the submodules. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-02diff: submodule inline diff to initialize env array.Libravatar Stefan Beller1-0/+1
David reported: > When I try to run `git diff --submodule=diff` in a submodule which has > it's own submodules that have changes I get the error: fatal: bad > object. This happens, because we do not properly initialize the environment in which the diff is run in the submodule. That means we inherit the environment from the main process, which sets environment variables. (Apparently we do set environment variables which we do not set when not in a submodules, i.e. the .git directory is linked) This commit, just like fd47ae6a5b (diff: teach diff to display submodule difference with an inline diff, 2016-08-31) introduces bad test code (i.e. hard coded hash values), which will be cleanup up in a later patch. Reported-by: David Parrish <daveparrish@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Rename sha1_array to oid_arrayLibravatar brian m. carlson1-24/+24
Since this structure handles an array of object IDs, rename it to struct oid_array. Also rename the accessor functions and the initialization constant. This commit was produced mechanically by providing non-Documentation files to the following Perl one-liners: perl -pi -E 's/struct sha1_array/struct oid_array/g' perl -pi -E 's/\bsha1_array_/oid_array_/g' perl -pi -E 's/SHA1_ARRAY_INIT/OID_ARRAY_INIT/g' Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Convert sha1_array_for_each_unique and for_each_abbrev to object_idLibravatar brian m. carlson1-10/+10
Make sha1_array_for_each_unique take a callback using struct object_id. Since one of these callbacks is an argument to for_each_abbrev, convert those as well. Rename various functions, replacing "sha1" with "oid". Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-31Make sha1_array_append take a struct object_id *Libravatar brian m. carlson1-3/+3
Convert the callers to pass struct object_id by changing the function declaration and definition and applying the following semantic patch: @@ expression E1, E2; @@ - sha1_array_append(E1, E2.hash) + sha1_array_append(E1, &E2) @@ expression E1, E2; @@ - sha1_array_append(E1, E2->hash) + sha1_array_append(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-30convert unchecked snprintf into xsnprintfLibravatar Jeff King1-1/+1
These calls to snprintf should always succeed, because their input is small and fixed. Let's use xsnprintf to make sure this is the case (and to make auditing for actual truncation easier). These could be candidates for turning into heap buffers, but they fall into a few broad categories that make it not worth doing: - formatting single numbers is simple enough that we can see the result should fit - the size of a sha1 is likewise well-known, and I didn't want to cause unnecessary conflicts with the ongoing process to convert these constants to GIT_MAX_HEXSZ - the interface for curl_errorstr is dictated by curl Signed-off-by: Jeff King <peff@peff.net>
2017-03-30Merge branch 'bw/submodule-is-active'Libravatar Junio C Hamano1-8/+42
"what URL do we want to update this submodule?" and "are we interested in this submodule?" are split into two distinct concepts, and then the way used to express the latter got extended, paving a way to make it easier to manage a project with many submodules and make it possible to later extend use of multiple worktrees for a project with submodules. * bw/submodule-is-active: submodule add: respect submodule.active and submodule.<name>.active submodule--helper init: set submodule.<name>.active clone: teach --recurse-submodules to optionally take a pathspec submodule init: initialize active submodules submodule: decouple url and submodule interest submodule--helper clone: check for configured submodules using helper submodule sync: use submodule--helper is-active submodule sync: skip work for inactive submodules submodule status: use submodule--helper is-active submodule--helper: add is-active subcommand
2017-03-29submodule.c: correctly handle nested submodules in is_submodule_modifiedLibravatar Stefan Beller1-2/+19
Suppose I have a superproject 'super', with two submodules 'super/sub' and 'super/sub1'. 'super/sub' itself contains a submodule 'super/sub/subsub'. Now suppose I run, from within 'super': echo hi >sub/subsub/stray-file echo hi >sub1/stray-file Currently we get would see the following output in git-status: git status --short m sub ? sub1 With this patch applied, the untracked file in the nested submodule is displayed as an untracked file on the 'super' level as well. git status --short ? sub ? sub1 This doesn't change the output of 'git status --porcelain=1' for nested submodules, because its output is always ' M' for either untracked files or local modifications no matter the nesting level of the submodule. 'git status --porcelain=2' is affected by this change in a nested submodule, though. Without this patch it would report the direct submodule as modified and having no untracked files. With this patch it would report untracked files. Chalk this up as a bug fix. This bug fix also affects the default output (non-short, non-porcelain) of git-status, which is not tested here. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-28Merge branch 'sb/checkout-recurse-submodules'Libravatar Junio C Hamano1-32/+190
"git checkout" is taught the "--recurse-submodules" option. * sb/checkout-recurse-submodules: builtin/read-tree: add --recurse-submodules switch builtin/checkout: add --recurse-submodules switch entry.c: create submodules when interesting unpack-trees: check if we can perform the operation for submodules unpack-trees: pass old oid to verify_clean_submodule update submodules: add submodule_move_head submodule.c: get_super_prefix_or_empty update submodules: move up prepare_submodule_repo_env submodules: introduce check to see whether to touch a submodule update submodules: add a config option to determine if submodules are updated update submodules: add submodule config parsing make is_submodule_populated gently lib-submodule-update.sh: define tests for recursing into submodules lib-submodule-update.sh: replace sha1 by hash lib-submodule-update: teach test_submodule_content the -C <dir> flag lib-submodule-update.sh: do not use ./. as submodule remote lib-submodule-update.sh: reorder create_lib_submodule_repo submodule--helper.c: remove duplicate code connect_work_tree_and_git_dir: safely create leading directories
2017-03-28submodule: convert check_for_new_submodule_commits to object_idLibravatar brian m. carlson1-2/+2
All of the callers of this function have been converted, so convert this function and update the callers. This function also calls sha1_array_append, which we'll convert shortly. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27path.c: move some code out of strbuf_git_path_submodule()Libravatar Nguyễn Thái Ngọc Duy1-0/+31
refs is learning to avoid path rewriting that is done by strbuf_git_path_submodule(). Factor out this code so it could be reused by refs_* functions. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27submodule.c: stricter checking for submodules in is_submodule_modifiedLibravatar Stefan Beller1-2/+3
By having a stricter check in the superproject we catch errors earlier, instead of spawning a child process to tell us. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27submodule.c: port is_submodule_modified to use porcelain 2Libravatar Stefan Beller1-4/+5
Migrate 'is_submodule_modified' to the new porcelain format of git-status. This conversion attempts to convert faithfully, i.e. the behavior ought to be exactly the same. As the output in the parsing only distinguishes between untracked files and the rest, this is easy to port to the new format, as we only need to identify untracked files and the rest is handled in the "else" case. untracked files are indicated by only a single question mark instead of two question marks, so the conversion is easy. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27submodule.c: convert is_submodule_modified to use strbuf_getwholelineLibravatar Stefan Beller1-16/+14
Instead of implementing line reading yet again, make use of our beautiful library function to read one line. By using strbuf_getwholeline instead of strbuf_read, we avoid having to allocate memory for the entire child process output at once. That is, we limit maximum memory usage. Also we can start processing the output as it comes in, no need to wait for all of it. Once we know all information that we care about, we can terminate the child early. In that case we do not care about its exit code as well. By just closing our side of the pipe the child process will get a SIGPIPE signal, which it will not report nor do we report it in finish_command, ac78663b0d (run-command: don't warn on SIGPIPE deaths, 2015-12-29). Helped-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27submodule.c: factor out early loop termination in is_submodule_modifiedLibravatar Stefan Beller1-8/+8
This makes it easier for a follow up patch. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-27submodule.c: use argv_array in is_submodule_modifiedLibravatar Stefan Beller1-8/+2
struct argv_array is easier to use and maintain. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-18submodule: decouple url and submodule interestLibravatar Brandon Williams1-8/+42
Currently the submodule.<name>.url config option is used to determine if a given submodule is of interest to the user. This ends up being cumbersome in a world where we want to have different submodules checked out in different worktrees or a more generalized mechanism to select which submodules are of interest. In a future with worktree support for submodules, there will be multiple working trees, each of which may only need a subset of the submodules checked out. The URL (which is where the submodule repository can be obtained) should not differ between different working trees. It may also be convenient for users to more easily specify groups of submodules they are interested in as opposed to running "git submodule init <path>" on each submodule they want checked out in their working tree. To this end two config options are introduced, submodule.active and submodule.<name>.active. The submodule.active config holds a pathspec that specifies which submodules should exist in the working tree. The submodule.<name>.active config is a boolean flag used to indicate if that particular submodule should exist in the working tree. Its important to note that submodule.active functions differently than the other configuration options since it takes a pathspec. This allows users to adopt at least two new workflows: 1. Submodules can be grouped with a leading directory, such that a pathspec e.g. 'lib/' would cover all library-ish modules to allow those who are interested in library-ish modules to set "submodule.active = lib/" just once to say any and all modules in 'lib/' are interesting. 2. Once the pathspec-attribute feature is invented, users can label submodules with attributes to group them, so that a broad pathspec with attribute requirements, e.g. ':(attr:lib)', can be used to say any and all modules with the 'lib' attribute are interesting. Since the .gitattributes file, just like the .gitmodules file, is tracked by the superproject, when a submodule moves in the superproject tree, the project can adjust which path gets the attribute in .gitattributes, just like it can adjust which path has the submodule in .gitmodules. Neither of these two additional configuration options solve the problem of wanting different submodules checked out in different worktrees because multiple worktrees share .git/config. Only once per-worktree configurations become a reality can this be solved, but this is a necessary preparatory step for that future. Given these multiple ways to check if a submodule is of interest, the more fine-grained submodule.<name>.active option has the highest order of precedence followed by the pathspec check against submodule.active. To ensure backwards compatibility, if neither of these options are set, git falls back to checking the submodule.<name>.url option to determine if a submodule is interesting. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-17Merge branch 'sb/rev-parse-show-superproject-root'Libravatar Junio C Hamano1-0/+82
From a working tree of a repository, a new option of "rev-parse" lets you ask if the repository is used as a submodule of another project, and where the root level of the working tree of that project (i.e. your superproject) is. * sb/rev-parse-show-superproject-root: rev-parse: add --show-superproject-working-tree
2017-03-16update submodules: add submodule_move_headLibravatar Stefan Beller1-0/+137
In later patches we introduce the options and flag for commands that modify the working directory, e.g. git-checkout. This piece of code will be used universally for all these working tree modifications as it * supports dry run to answer the question: "Is it safe to change the submodule to this new state?" e.g. is it overwriting untracked files or are there local changes that would be overwritten? * supports a force flag that can be used for resetting the tree. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-16submodule.c: get_super_prefix_or_emptyLibravatar Stefan Beller1-6/+10
In a later patch we need to use the super_prefix, and in case it is NULL we can just assume it is empty. Create a helper function for this. We already have some use cases for this helper function, convert them, too. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15update submodules: move up prepare_submodule_repo_envLibravatar Stefan Beller1-12/+17
In a later patch we need to prepare the submodule environment with another git directory, so split up the function. Also move it up in the file such that we do not need to declare the function later before using it. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15submodules: introduce check to see whether to touch a submoduleLibravatar Stefan Beller1-0/+16
In later patches we introduce the --recurse-submodule flag for commands that modify the working directory, e.g. git-checkout. It is potentially expensive to check if a submodule needs an update, because a common theme to interact with submodules is to spawn a child process for each interaction. So let's introduce a function that checks if a submodule needs to be checked for an update before attempting the update. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15update submodules: add a config option to determine if submodules are updatedLibravatar Stefan Beller1-0/+6
In later patches we introduce the options and flag for commands that modify the working directory, e.g. git-checkout. Have a central place to store such settings whether we want to update a submodule. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15make is_submodule_populated gentlyLibravatar Stefan Beller1-5/+2
We need the gentle version in a later patch. As we have just one caller, migrate the caller. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-15connect_work_tree_and_git_dir: safely create leading directoriesLibravatar Stefan Beller1-9/+2
In a later patch we'll use connect_work_tree_and_git_dir when the directory for the gitlink file doesn't exist yet. This patch makes connect_work_tree_and_git_dir safe to use for both cases of either the git dir or the working dir missing. To do so, we need to call safe_create_leading_directories[_const] on both directories. However this has to happen before we construct the absolute paths as real_pathdup assumes the directories to be there already. So for both the config file in the git dir as well as the .git link file we need to a) construct the name b) call SCLD c) get the absolute path d) once a-c is done for both we can consume the absolute path to compute the relative path to each other and store those relative paths. The implementation provided here puts a) and b) for both cases first, and then performs c and d after. One of the two users of 'connect_work_tree_and_git_dir' already checked for the directory being there, so we can loose that check as connect_work_tree_and_git_dir handles this functionality now. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-08rev-parse: add --show-superproject-working-treeLibravatar Stefan Beller1-0/+82
In some situations it is useful to know if the given repository is a submodule of another repository. Add the flag --show-superproject-working-tree to git-rev-parse to make it easy to find out if there is a superproject. When no superproject exists, the output will be empty. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-08real_pathdup(): fix callsites that wanted it to die on errorLibravatar Johannes Schindelin1-5/+5
In 4ac9006f832 (real_path: have callers use real_pathdup and strbuf_realpath, 2016-12-12), we changed the xstrdup(real_path()) pattern to use real_pathdup() directly. The problem with this change is that real_path() calls strbuf_realpath() with die_on_error = 1 while real_pathdup() calls it with die_on_error = 0. Meaning that in cases where real_path() causes Git to die() with an error message, real_pathdup() is silent and returns NULL instead. The callers, however, are ill-prepared for that change, as they expect the return value to be non-NULL (and otherwise the function died with an appropriate error message). Fix this by extending real_pathdup()'s signature to accept the die_on_error flag and simply pass it through to strbuf_realpath(), and then adjust all callers after a careful audit whether they would handle NULLs well. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-26submodule absorbing: fix worktree/gitdir pointers recursively for non-movesLibravatar Stefan Beller1-16/+46
Consider having a submodule 'sub' and a nested submodule at 'sub/nested'. When nested is already absorbed into sub, but sub is not absorbed into its superproject, then we need to fixup the gitfile and core.worktree setting for 'nested' when absorbing 'sub', but we do not need to move its git dir around. Previously 'nested's gitfile contained "gitdir: ../.git/modules/nested"; it has to be corrected to "gitdir: ../../.git/modules/sub1/modules/nested". An alternative I considered to do this work lazily, i.e. when resolving "../.git/modules/nested", we would notice the ".git" being a gitfile linking to another path. That seemed to be robuster by design, but harder to get the implementation right. Maybe we have to do that anyway once we try to have submodules and worktrees working nicely together, but for now just produce 'correct' (i.e. direct) pointers. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-01-18Merge branch 'sb/submodule-cleanup-export-git-dir-env'Libravatar Junio C Hamano1-1/+2
Code cleanup. * sb/submodule-cleanup-export-git-dir-env: submodule.c: use GIT_DIR_ENVIRONMENT consistently
2017-01-18Merge branch 'sb/submodule-rm-absorb'Libravatar Junio C Hamano1-19/+38
"git rm" used to refuse to remove a submodule when it has its own git repository embedded in its working tree. It learned to move the repository away to $GIT_DIR/modules/ of the superproject instead, and allow the submodule to be deleted (as long as there will be no loss of local modifications, that is). * sb/submodule-rm-absorb: rm: absorb a submodules git dir before deletion submodule: rename and add flags to ok_to_remove_submodule submodule: modernize ok_to_remove_submodule to use argv_array submodule.h: add extern keyword to functions
2017-01-18Merge branch 'bw/grep-recurse-submodules'Libravatar Junio C Hamano1-4/+54
"git grep" has been taught to optionally recurse into submodules. * bw/grep-recurse-submodules: grep: search history of moved submodules grep: enable recurse-submodules to work on <tree> objects grep: optionally recurse into submodules grep: add submodules as a grep source type submodules: load gitmodules file from commit sha1 submodules: add helper to determine if a submodule is initialized submodules: add helper to determine if a submodule is populated real_path: canonicalize directory separators in root parts real_path: have callers use real_pathdup and strbuf_realpath real_path: create real_pathdup real_path: convert real_path_internal to strbuf_realpath real_path: resolve symlinks by hand
2017-01-17Merge branch 'bw/push-dry-run' into maintLibravatar Junio C Hamano1-5/+8
"git push --dry-run --recurse-submodule=on-demand" wasn't "--dry-run" in the submodules. * bw/push-dry-run: push: fix --dry-run to not push submodules push: --dry-run updates submodules when --recurse-submodules=on-demand
2017-01-17Merge branch 'hv/submodule-not-yet-pushed-fix' into maintLibravatar Junio C Hamano1-26/+97
The code in "git push" to compute if any commit being pushed in the superproject binds a commit in a submodule that hasn't been pushed out was overly inefficient, making it unusable even for a small project that does not have any submodule but have a reasonable number of refs. * hv/submodule-not-yet-pushed-fix: submodule_needs_pushing(): explain the behaviour when we cannot answer batch check whether submodule needs pushing into one call serialize collection of refs that contain submodule changes serialize collection of changed submodules
2017-01-10Merge branch 'sb/submodule-embed-gitdir'Libravatar Junio C Hamano1-24/+103
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
2017-01-07submodule.c: use GIT_DIR_ENVIRONMENT consistentlyLibravatar Stefan Beller1-1/+2
In C code we have the luxury of having constants for all the important things that are hard coded. This is the only place in C that hard codes the git directory environment variable, so fix it. Signed-off-by: Stefan Beller <sbeller@google.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-12-27submodule: rename and add flags to ok_to_remove_submoduleLibravatar Stefan Beller1-12/+37
In different contexts the question "Is it ok to delete a submodule?" may be answered differently. In 293ab15eea (submodule: teach rm to remove submodules unless they contain a git directory, 2012-09-26) a case was made that we can safely ignore ignored untracked files for removal as we explicitely ask for the removal of the submodule. In a later patch we want to remove submodules even when the user doesn't explicitly ask for it (e.g. checking out a tree-ish in which the submodule doesn't exist). In that case we want to be more careful when it comes to deletion of untracked files. As of this patch it is unclear how this will be implemented exactly, so we'll offer flags in which the caller can specify how the different untracked files ought to be handled. As the flags allow the function to not die on an error when spawning a child process, we need to find an appropriate return code for the case when the child process could not be started. As in that case we cannot tell if the submodule is ok to remove, we'd want to return 'false'. As only 0 is understood as false, rename the function to invert the meaning, i.e. the return code of 0 signals the removal of the submodule is fine, and other values can be used to return a more precise answer what went wrong. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>