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2017-06-24Merge branch 'bw/config-h'Junio C Hamano
Fix configuration codepath to pay proper attention to commondir that is used in multi-worktree situation, and isolate config API into its own header file. * bw/config-h: config: don't implicitly use gitdir or commondir config: respect commondir setup: teach discover_git_directory to respect the commondir config: don't include config.h by default config: remove git_config_iter config: create config.h
2017-06-15config: don't include config.h by defaultBrandon Williams
Stop including config.h by default in cache.h. Instead only include config.h in those files which require use of the config system. Signed-off-by: Brandon Williams <bmwill@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-05-08Convert lookup_tag to struct object_idbrian m. carlson
Convert lookup_tag to take a pointer to struct object_id. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> 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>
2017-04-18replace: plug a memory leakJunio C Hamano
Recent update to for_each_replace_name() to make it use a strbuf in place of a fixed buffer forgot to release the memory held by the strbuf before leaving the function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-03-30avoid using fixed PATH_MAX buffers for refsJeff King
Many functions which handle refs use a PATH_MAX-sized buffer to do so. This is mostly reasonable as we have to write loose refs into the filesystem, and at least on Linux the 4K PATH_MAX is big enough that nobody would care. But: 1. The static PATH_MAX is not always the filesystem limit. 2. On other platforms, PATH_MAX may be much smaller. 3. As we move to alternate ref storage, we won't be bound by filesystem limits. Let's convert these to heap buffers so we don't have to worry about truncation or size limits. We may want to eventually constrain ref lengths for sanity and to prevent malicious names, but we should do so consistently across all platforms, and in a central place (like the ref code). Signed-off-by: Jeff King <peff@peff.net>
2017-03-17Merge branch 'bc/object-id'Junio C Hamano
"uchar [40]" to "struct object_id" conversion continues. * bc/object-id: wt-status: convert to struct object_id builtin/merge-base: convert to struct object_id Convert object iteration callbacks to struct object_id sha1_file: introduce an nth_packed_object_oid function refs: simplify parsing of reflog entries refs: convert each_reflog_ent_fn to struct object_id reflog-walk: convert struct reflog_info to struct object_id builtin/replace: convert to struct object_id Convert remaining callers of resolve_refdup to object_id builtin/merge: convert to struct object_id builtin/clone: convert to struct object_id builtin/branch: convert to struct object_id builtin/grep: convert to struct object_id builtin/fmt-merge-message: convert to struct object_id builtin/fast-export: convert to struct object_id builtin/describe: convert to struct object_id builtin/diff-tree: convert to struct object_id builtin/commit: convert to struct object_id hex: introduce parse_oid_hex
2017-02-22builtin/replace: convert to struct object_idbrian m. carlson
Convert various uses of unsigned char [20] to struct object_id. Rename replace_object_sha1 to replace_object_oid. Finally, specify a constant in terms of GIT_SHA1_HEXSZ. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-02-21delete_ref: accept a reflog message argumentKyle Meyer
When the current branch is renamed with 'git branch -m/-M' or deleted with 'git update-ref -m<msg> -d', the event is recorded in HEAD's log with an empty message. In preparation for adding a more meaningful message to HEAD's log in these cases, update delete_ref() to take a message argument and pass it along to ref_transaction_delete(). Modify all callers to pass NULL for the new message argument; no change in behavior is intended. Note that this is relevant for HEAD's log but not for the deleted ref's log, which is currently deleted along with the ref. Even if it were not, an entry for the deletion wouldn't be present in the deleted ref's log. files_transaction_commit() writes to the log if REF_NEEDS_COMMIT or REF_LOG_ONLY are set, but lock_ref_for_update() doesn't set REF_NEEDS_COMMIT for the deleted ref because REF_DELETING is set. In contrast, the update for HEAD has REF_LOG_ONLY set by split_head_update(), resulting in the deletion being logged. Signed-off-by: Kyle Meyer <kyle@kyleam.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-29Merge branch 'js/replace-edit-use-editor-configuration'Junio C Hamano
"git replace -e" did not honour "core.editor" configuration. * js/replace-edit-use-editor-configuration: replace --edit: respect core.editor
2016-04-20replace --edit: respect core.editorJohannes Schindelin
We simply need to read the config, is all. This fixes https://github.com/git-for-windows/git/issues/733 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-20Convert struct object to object_idbrian m. carlson
struct object is one of the major data structures dealing with object IDs. Convert it to use struct object_id instead of an unsigned char array. Convert get_object_hash to refer to the new member as well. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-08-03Merge branch 'mh/replace-refs'Junio C Hamano
Add an environment variable to tell Git to look into refs hierarchy other than refs/replace/ for the object replacement data. * mh/replace-refs: Allow to control where the replace refs are looked for
2015-06-12Allow to control where the replace refs are looked forMike Hommey
It can be useful to have grafts or replace refs for specific use-cases while keeping the default "view" of the repository pristine (or with a different set of grafts/replace refs). It is possible to use a different graft file with GIT_GRAFT_FILE, but while replace refs are more powerful, they don't have an equivalent override. Add a GIT_REPLACE_REF_BASE environment variable to control where git is going to look for replace refs. Signed-off-by: Mike Hommey <mh@glandium.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25show_reference(): rewrite to take an object_id argumentMichael Haggerty
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25each_ref_fn: change to take an object_id parameterMichael Haggerty
Change typedef each_ref_fn to take a "const struct object_id *oid" parameter instead of "const unsigned char *sha1". To aid this transition, implement an adapter that can be used to wrap old-style functions matching the old typedef, which is now called "each_ref_sha1_fn"), and make such functions callable via the new interface. This requires the old function and its cb_data to be wrapped in a "struct each_ref_fn_sha1_adapter", and that object to be used as the cb_data for an adapter function, each_ref_fn_adapter(). This is an enormous diff, but most of it consists of simple, mechanical changes to the sites that call any of the "for_each_ref" family of functions. Subsequent to this change, the call sites can be rewritten one by one to use the new interface. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-02-17ref_transaction_update(): remove "have_old" parameterMichael Haggerty
Instead, verify the reference's old value if and only if old_sha1 is non-NULL. ref_transaction_delete() will get the same treatment in a moment. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-15refs.c: pass the ref log message to _create/delete/update instead of _commitRonnie Sahlberg
Change the ref transaction API so that we pass the reflog message to the create/delete/update functions instead of to ref_transaction_commit. This allows different reflog messages for each ref update in a multi-ref transaction. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-11Merge branch 'rs/ref-transaction-1'Junio C Hamano
The second batch of the transactional ref update series. * rs/ref-transaction-1: (22 commits) update-ref --stdin: pass transaction around explicitly update-ref --stdin: narrow scope of err strbuf refs.c: make delete_ref use a transaction refs.c: make prune_ref use a transaction to delete the ref refs.c: remove lock_ref_sha1 refs.c: remove the update_ref_write function refs.c: remove the update_ref_lock function refs.c: make lock_ref_sha1 static walker.c: use ref transaction for ref updates fast-import.c: use a ref transaction when dumping tags receive-pack.c: use a reference transaction for updating the refs refs.c: change update_ref to use a transaction branch.c: use ref transaction for all ref updates fast-import.c: change update_branch to use ref transactions sequencer.c: use ref transactions for all ref updates commit.c: use ref transactions for updates replace.c: use the ref transaction functions for updates tag.c: use ref transactions when doing updates refs.c: add transaction.status and track OPEN/CLOSED refs.c: make ref_transaction_begin take an err argument ...
2014-09-03replace.c: use the ref transaction functions for updatesRonnie Sahlberg
Update replace.c to use ref transactions for updates. Signed-off-by: Ronnie Sahlberg <sahlberg@google.com> Reviewed-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-20run-command: introduce CHILD_PROCESS_INITRené Scharfe
Most struct child_process variables are cleared using memset first after declaration. Provide a macro, CHILD_PROCESS_INIT, that can be used to initialize them statically instead. That's shorter, doesn't require a function call and is slightly more readable (especially given that we already have STRBUF_INIT, ARGV_ARRAY_INIT etc.). Helped-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-27Merge branch 'cc/replace-graft'Junio C Hamano
"git replace" learned a "--graft" option to rewrite parents of a commit. * cc/replace-graft: replace: add test for --graft with a mergetag replace: check mergetags when using --graft replace: add test for --graft with signed commit replace: remove signature when using --graft contrib: add convert-grafts-to-replace-refs.sh Documentation: replace: add --graft option replace: add test for --graft replace: add --graft option replace: cleanup redirection style in tests
2014-07-21replace: check mergetags when using --graftChristian Couder
When using --graft, with a mergetag in the original commit, we should check that the commit pointed to by the mergetag is still a parent of then new commit we create, otherwise the mergetag could be misleading. If the commit pointed to by the mergetag is no more a parent of the new commit, we could remove the mergetag, but in this case there is a good chance that the title or other elements of the commit might also be misleading. So let's just error out and suggest to use --edit instead on the commit. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21replace: remove signature when using --graftChristian Couder
It could be misleading to keep a signature in a replacement commit, so let's remove it. Note that there should probably be a way to sign the replacement commit created when using --graft, but this can be dealt with in another commit or patch series. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-21replace: add --graft optionChristian Couder
The usage string for this option is: git replace [-f] --graft <commit> [<parent>...] First we create a new commit that is the same as <commit> except that its parents are [<parents>...] Then we create a replace ref that replace <commit> with the commit we just created. With this new option, it should be straightforward to convert grafts to replace refs. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-25replace: add a --raw mode for --editJeff King
One of the purposes of "git replace --edit" is to help a user repair objects which are malformed or corrupted. Usually we pretty-print trees with "ls-tree", which is much easier to work with than the raw binary data. However, some forms of corruption break the tree-walker, in which case our pretty-printing fails, rendering "--edit" useless for the user. This patch introduces a "--raw" option, which lets you edit the binary data in these instances. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-25replace: use argv_array in export_objectJeff King
This is a little more verbose, but will make it easier to make parts of our command-line conditional (without resorting to magic numbers or lots of NULLs to get an appropriately sized argv array). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-25avoid double close of descriptors handed to run_commandJeff King
When a file descriptor is given to run_command via the "in", "out", or "err" parameters, run_command takes ownership. The descriptor will be closed in the parent process whether the process is spawned successfully or not, and closing it again is wrong. In practice this has not caused problems, because we usually close() right after start_command returns, meaning no other code has opened a descriptor in the meantime. So we just get EBADF and ignore it (rather than accidentally closing somebody else's descriptor!). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-25replace: replace spaces with tabs in indentationJeff King
This matches our usual style and the surrounding code. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19replace: add --edit to usage stringChristian Couder
Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19replace: die early if replace ref already existsChristian Couder
If a replace ref already exists for an object, it is much better for the user if we error out before we let the user edit the object, rather than after. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19replace: refactor checking ref validityChristian Couder
This will be useful in a following commit when we will want to check if the ref already exists before we let the user edit an object. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-05-19replace: make sure --edit results in a different objectChristian Couder
It's a bad idea to create a replace ref for an object that points to the original object itself. That's why we have to check if the result from editing the original object is a different object and error out if it isn't. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-29replace: add --edit optionJeff King
This allows you to run: git replace --edit SHA1 to get dumped in an editor with the contents of the object for SHA1. The result is then read back in and used as a "replace" object for SHA1. The writing/reading is type-aware, so you get to edit "ls-tree" output rather than the binary tree format. Missing documentation and tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-29replace: factor object resolution out of replace_objectJeff King
As we add new options that operate on objects before replacing them, we'll want to be able to feed raw sha1s straight into replace_object. Split replace_object into the object-resolution part and the actual replacement. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-29replace: use OPT_CMDMODE to handle modesJeff King
By using OPT_CMDMODE, the mutual exclusion between modes is taken care of for us. It also makes it easy for us to maintain a single variable with the mode, which makes its intent more clear. We can use a single switch() to make sure we have covered all of the modes. This ends up breaking even in code size, but the win will be much bigger when we start adding more modes. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-04-29replace: refactor command-mode determinationJeff King
The git-replace command has three modes: listing, deleting, and replacing. The first two are selected explicitly. If none is selected, we fallback to listing when there are no arguments, and replacing otherwise. Let's figure out up front which operation we are going to do, before getting into the application logic. That lets us simplify our option checks (e.g., we currently have to check whether a useless "--force" is given both along with an explicit list, as well as with an implicit one). This saves some lines, makes the logic easier to follow, and will facilitate further cleanups. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-03-14Merge branch 'mh/replace-refs-variable-rename'Junio C Hamano
* mh/replace-refs-variable-rename: Document some functions defined in object.c Add docstrings for lookup_replace_object() and do_lookup_replace_object() rename read_replace_refs to check_replace_refs
2014-02-20rename read_replace_refs to check_replace_refsMichael Haggerty
The semantics of this flag was changed in commit e1111cef23 inline lookup_replace_object() calls but wasn't renamed at the time to minimize code churn. Rename it now, and add a comment explaining its use. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-02-20use wildmatch() directly without fnmatch() wrapperNguyễn Thái Ngọc Duy
Make it clear that we don't use fnmatch() anymore. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-30replace info: rename 'full' to 'long' and clarify in-code symbolsChristian Couder
Enum names SHORT/MEDIUM/FULL were too broad to be descriptive. And they clashed with built-in symbols on platforms like Windows. Clarify by giving them REPLACE_FORMAT_ prefix. Rename 'full' format in "git replace --format=<name>" to 'long', to match others (i.e. 'short' and 'medium'). Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12builtin/replace: unset read_replace_refsChristian Couder
When checking to see if some objects are of the same type and when displaying the type of objects, git replace uses the sha1_object_info() function. Unfortunately this function by default respects replace refs, so instead of the type of a replaced object, it gives the type of the replacement object which might be different. To fix this bug, and because git replace should work at a level before replacement takes place, let's unset the read_replace_refs global variable at the beginning of cmd_replace(). Suggested-by: Jeff King <peff@peff.net> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-12-12builtin/replace: teach listing using short, medium or full formatsChristian Couder
By default when listing replace refs, only the sha1 of the replaced objects are shown. In many cases, it is much nicer to be able to list all the sha1 of the replaced objects along with the sha1 of the replacment objects. And in other cases it might be interesting to also show the types of the replaced and replacement objects. This patch introduce a new --format=<fmt> option where <fmt> can be any of the following: 'short': this is the same as when no --format option is used, that is only the sha1 of the replaced objects are shown 'medium': this also lists the sha1 of the replacement objects 'full': this shows the sha1 and the type of both the replaced and the replacement objects Some documentation and some tests will follow. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-25Merge branch 'cc/replace-with-the-same-type'Jonathan Nieder
* cc/replace-with-the-same-type: Doc: 'replace' merge and non-merge commits t6050-replace: use some long option names replace: allow long option names Documentation/replace: add Creating Replacement Objects section t6050-replace: add test to clean up all the replace refs t6050-replace: test that objects are of the same type Documentation/replace: state that objects must be of the same type replace: forbid replacing an object with one of a different type
2013-09-20Merge branch 'bk/refs-multi-update'Junio C Hamano
Give "update-refs" a "--stdin" option to read multiple update requests and perform them in an all-or-none fashion. * bk/refs-multi-update: update-ref: add test cases covering --stdin signature update-ref: support multiple simultaneous updates refs: add update_refs for multiple simultaneous updates refs: add function to repack without multiple refs refs: factor delete_ref loose ref step into a helper refs: factor update_ref steps into helpers refs: report ref type from lock_any_ref_for_update reset: rename update_refs to reset_refs
2013-09-06replace: allow long option namesChristian Couder
It is now standard practice in Git to have both short and long option names. So let's give a long option name to the git replace options too. Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-09-06replace: forbid replacing an object with one of a different typeChristian Couder
Users replacing an object with one of a different type were not prevented to do so, even if it was obvious, and stated in the doc, that bad things would result from doing that. To avoid mistakes, it is better to just forbid that though. If -f option, which means '--force', is used, we can allow an object to be replaced with one of a different type, as the user should know what (s)he is doing. If one object is replaced with one of a different type, the only way to keep the history valid is to also replace all the other objects that point to the replaced object. That's because: * Annotated tags contain the type of the tagged object. * The tree/parent lines in commits must be a tree and commits, resp. * The object types referred to by trees are specified in the 'mode' field: 100644 and 100755 blob 160000 commit 040000 tree (these are the only valid modes) * Blobs don't point at anything. The doc will be updated in a later patch. Acked-by: Philip Oakley <philipoakley@iee.org> Signed-off-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-30refs: report ref type from lock_any_ref_for_updateBrad King
Expose lock_ref_sha1_basic's type_p argument to callers of lock_any_ref_for_update. Update all call sites to ignore it by passing NULL for now. Signed-off-by: Brad King <brad.king@kitware.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-08-05Replace deprecated OPT_BOOLEAN by OPT_BOOLStefan Beller
This task emerged from b04ba2bb (parse-options: deprecate OPT_BOOLEAN, 2011-09-27). All occurrences of the respective variables have been reviewed and none of them relied on the counting up mechanism, but all of them were using the variable as a true boolean. This patch does not change semantics of any command intentionally. Signed-off-by: Stefan Beller <stefanbeller@googlemail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-18fix "builtin-*" references to be "builtin/*"Phil Hord
Documentation and some comments still refer to files in builtin/ as 'builtin-*.[cho]'. Update these to show the correct location. Signed-off-by: Phil Hord <hordp@cisco.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Assisted-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>