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2017-05-30Merge branch 'bw/pathspec-sans-the-index'Junio C Hamano
Simplify parse_pathspec() codepath and stop it from looking at the default in-core index. * bw/pathspec-sans-the-index: pathspec: convert find_pathspecs_matching_against_index to take an index pathspec: remove PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP ls-files: prevent prune_cache from overeagerly pruning submodules pathspec: remove PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flag submodule: add die_in_unpopulated_submodule function pathspec: provide a more descriptive die message
2017-05-29Merge branch 'bc/object-id'Junio C Hamano
Conversion from uchar[20] to struct object_id continues. * bc/object-id: (53 commits) object: convert parse_object* to take struct object_id tree: convert parse_tree_indirect to struct object_id sequencer: convert do_recursive_merge to struct object_id diff-lib: convert do_diff_cache to struct object_id builtin/ls-tree: convert to struct object_id merge: convert checkout_fast_forward to struct object_id sequencer: convert fast_forward_to to struct object_id builtin/ls-files: convert overlay_tree_on_cache to object_id builtin/read-tree: convert to struct object_id sha1_name: convert internals of peel_onion to object_id upload-pack: convert remaining parse_object callers to object_id revision: convert remaining parse_object callers to object_id revision: rename add_pending_sha1 to add_pending_oid http-push: convert process_ls_object and descendants to object_id refs/files-backend: convert many internals to struct object_id refs: convert struct ref_update to use struct object_id ref-filter: convert some static functions to struct object_id Convert struct ref_array_item to struct object_id Convert the verify_pack callback to struct object_id Convert lookup_tag to struct object_id ...
2017-05-29Merge branch 'jk/diff-submodule-diff-inline'Junio C Hamano
"git diff --submodule=diff" now recurses into nested submodules. * jk/diff-submodule-diff-inline: diff: recurse into nested submodules for inline diff
2017-05-29Merge branch 'sb/checkout-recurse-submodules'Junio C Hamano
"git checkout --recurse-submodules" did not quite work with a submodule that itself has submodules. * sb/checkout-recurse-submodules: submodule: properly recurse for read-tree and checkout submodule: avoid auto-discovery in new working tree manipulator code submodule_move_head: reuse child_process structure for futher commands
2017-05-29Merge branch 'sb/reset-recurse-submodules'Junio C Hamano
"git reset" learned "--recurse-submodules" option. * sb/reset-recurse-submodules: builtin/reset: add --recurse-submodules switch submodule.c: submodule_move_head works with broken submodules submodule.c: uninitialized submodules are ignored in recursive commands entry.c: submodule recursing: respect force flag correctly
2017-05-12pathspec: remove PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flagBrandon Williams
Since (ae8d08242 pathspec: pass directory indicator to match_pathspec_item()) the path matching logic has been able to cope with submodules without needing to strip off a trailing slash if a path refers to a submodule. Since the stripping the trailing slash is no longer necessary, remove the PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flag. In addition, factor out the logic which dies if a path decends into a submodule so that it can still be used as a check after a pathspec struct has been initialized. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-10submodule: add die_in_unpopulated_submodule functionBrandon Williams
Currently 'git add' is the only command which dies when launched from an unpopulated submodule (the place-holder directory for a submodule which hasn't been checked out). This is triggered implicitly by passing the PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE flag to 'parse_pathspec()'. Instead make this desire more explicit by creating a function 'die_in_unpopulated_submodule()' which dies if the provided 'prefix' has a leading path component which matches a submodule in the the index. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08Convert lookup_commit* to struct object_idbrian m. carlson
Convert lookup_commit, lookup_commit_or_die, lookup_commit_reference, and lookup_commit_reference_gently to take struct object_id arguments. Introduce a temporary in parse_object buffer in order to convert this function. This is required since in order to convert parse_object and parse_object_buffer, lookup_commit_reference_gently and lookup_commit_or_die would need to be converted. Not introducing a temporary would therefore require that lookup_commit_or_die take a struct object_id *, but lookup_commit would take unsigned char *, leaving a confusing and hard-to-use interface. parse_object_buffer will lose this temporary in a later patch. This commit was created with manual changes to commit.c, commit.h, and object.c, plus the following semantic patch: @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1.hash, E2) + lookup_commit_reference_gently(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_reference_gently(E1->hash, E2) + lookup_commit_reference_gently(E1, E2) @@ expression E1; @@ - lookup_commit_reference(E1.hash) + lookup_commit_reference(&E1) @@ expression E1; @@ - lookup_commit_reference(E1->hash) + lookup_commit_reference(E1) @@ expression E1; @@ - lookup_commit(E1.hash) + lookup_commit(&E1) @@ expression E1; @@ - lookup_commit(E1->hash) + lookup_commit(E1) @@ expression E1, E2; @@ - lookup_commit_or_die(E1.hash, E2) + lookup_commit_or_die(&E1, E2) @@ expression E1, E2; @@ - lookup_commit_or_die(E1->hash, E2) + lookup_commit_or_die(E1, E2) Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08Convert remaining callers of lookup_commit_reference* to object_idbrian m. carlson
There are a small number of remaining callers of lookup_commit_reference and lookup_commit_reference_gently that still need to be converted to struct object_id. Convert these. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08submodule: convert merge_submodule to use struct object_idbrian m. carlson
This is a caller of lookup_commit_reference, which we will convert later. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08diff: recurse into nested submodules for inline diffStefan Beller
When fd47ae6a5b (diff: teach diff to display submodule difference with an inline diff, 2016-08-31) was introduced, we did not think of recursing into nested submodules. When showing the inline diff for submodules, automatically recurse into nested submodules as well with inline submodule diffs. Signed-off-by: Stefan Beller <sbeller@google.com> Acked-by: Jacob Keller <jacob.keller@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-04submodule: properly recurse for read-tree and checkoutStefan Beller
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 codeStefan Beller
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 commandsStefan Beller
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>
2017-05-02submodule: refactor logic to determine changed submodulesBrandon Williams
There are currently two instances (fetch and push) where we want to determine if submodules have changed given some revision specification. These two instances don't use the same logic to generate a list of changed submodules and as a result there is a fair amount of code duplication. This patch refactors these two code paths such that they both use the same logic to generate a list of changed submodules. This also makes it easier for future callers to be able to reuse this logic as they only need to create an argv_array with the revision specification to be using during the revision walk. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-02submodule: improve submodule_has_commits()Brandon Williams
Teach 'submodule_has_commits()' to ensure that if a commit exists in a submodule, that it is also reachable from a ref. This is a preparatory step prior to merging the logic which checks for changed submodules when fetching or pushing. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01submodule: change string_list changed_submodule_pathsBrandon Williams
Eliminate a call to 'xstrdup()' by changing the string_list 'changed_submodule_paths' to duplicated strings added to it. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01submodule: remove add_oid_to_argv()Brandon Williams
The function 'add_oid_to_argv()' provides the same functionality as 'append_oid_to_argv()'. Remove this duplicate function and instead use 'append_oid_to_argv()' where 'add_oid_to_argv()' was previously used. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01submodule: rename free_submodules_sha1s()Brandon Williams
Rename 'free_submodules_sha1s()' to 'free_submodules_oids()' since the function frees a 'struct string_list' which has a 'struct oid_array' stored in the 'util' field. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-01submodule: rename add_sha1_to_array()Brandon Williams
Rename 'add_sha1_to_array()' to 'append_oid_to_array()' to more accurately describe what the function does, since it handles 'struct object_id' and not sha1 character arrays. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-24Merge branch 'sb/checkout-recurse-submodules'Junio C Hamano
Code cleanup. * sb/checkout-recurse-submodules: submodule: remove a superfluous second check for the "new" variable
2017-04-20Merge branch 'nd/files-backend-git-dir'Junio C Hamano
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() ...
2017-04-20Merge branch 'sb/submodule-rm-absorb'Junio C Hamano
Error message fix. * sb/submodule-rm-absorb: submodule.c: add missing ' in error messages
2017-04-20Merge branch 'bw/push-options-recursively-to-submodules'Junio C Hamano
"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
2017-04-20Merge branch 'bc/object-id'Junio C Hamano
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
2017-04-20Merge branch 'sb/submodule-short-status'Junio C Hamano
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
2017-04-19submodule.c: submodule_move_head works with broken submodulesStefan Beller
Early on in submodule_move_head just after the check if the submodule is initialized, we need to check if the submodule is populated correctly. If the submodule is initialized but doesn't look like it is populated, this is a red flag and can indicate multiple sorts of failures: (1) The submodule may be recorded at an object name, that is missing. (2) The submodule '.git' file link may be broken and it is not pointing at a repository. In both cases we want to complain to the user in the non-forced mode, and in the forced mode ignoring the old state and just moving the submodule into its new state with a fixed '.git' file link. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-19submodule.c: uninitialized submodules are ignored in recursive commandsStefan Beller
This was an oversight when working on the working tree modifying commands recursing into submodules. To test for uninitialized submodules, introduce another submodule "uninitialized_sub". Adding it via `submodule add` will activate the submodule in the preparation area (in create_lib_submodule_repo we setup all the things in submodule_update_repo), but the later tests will use a new testing repo that clones the preparation repo in which the new submodule is not initialized. By adding it to the branch "add_sub1", which is the starting point of all other branches, we have wide coverage. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-18submodule: remove a superfluous second check for the "new" variableSebastian Schuberth
Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-04-17Merge branch 'sb/show-diff-for-submodule-in-diff-fix'Junio C Hamano
"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.
2017-04-17Merge branch 'jk/snprintf-cleanups'Junio C Hamano
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
2017-04-14submodule.c: add missing ' in error messagesRalf Thielow
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-submodulesBrandon Williams
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-submodulesBrandon Williams
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.Stefan Beller
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_arraybrian m. carlson
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_idbrian m. carlson
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 *brian m. carlson
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 xsnprintfJeff King
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'Junio C Hamano
"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
2017-03-30submodule.c: correctly handle nested submodules in is_submodule_modifiedStefan Beller
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'Junio C Hamano
"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_idbrian m. carlson
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()Nguyễn Thái Ngọc Duy
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_modifiedStefan Beller
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 2Stefan Beller
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_getwholelineStefan Beller
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_modifiedStefan Beller
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_modifiedStefan Beller
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 interestBrandon Williams
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>