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2016-07-06Merge branch 'km/fetch-do-not-free-remote-name'Libravatar Junio C Hamano1-4/+2
The ownership rule for the piece of memory that hold references to be fetched in "git fetch" was screwy, which has been cleaned up. * km/fetch-do-not-free-remote-name: builtin/fetch.c: don't free remote->name after fetch
2016-06-14builtin/fetch.c: don't free remote->name after fetchLibravatar Keith McGuigan1-4/+2
Make fetch's string_list of remote names own all of its string items (strdup'ing when necessary) so that it can deallocate them safely when clearing. Signed-off-by: Keith McGuigan <kmcguigan@twopensource.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-05-17Merge branch 'nd/error-errno'Libravatar Junio C Hamano1-2/+2
The code for warning_errno/die_errno has been refactored and a new error_errno() reporting helper is introduced. * nd/error-errno: (41 commits) wrapper.c: use warning_errno() vcs-svn: use error_errno() upload-pack.c: use error_errno() unpack-trees.c: use error_errno() transport-helper.c: use error_errno() sha1_file.c: use {error,die,warning}_errno() server-info.c: use error_errno() sequencer.c: use error_errno() run-command.c: use error_errno() rerere.c: use error_errno() and warning_errno() reachable.c: use error_errno() mailmap.c: use error_errno() ident.c: use warning_errno() http.c: use error_errno() and warning_errno() grep.c: use error_errno() gpg-interface.c: use error_errno() fast-import.c: use error_errno() entry.c: use error_errno() editor.c: use error_errno() diff-no-index.c: use error_errno() ...
2016-05-09builtin/fetch.c: use error_errno()Libravatar Nguyễn Thái Ngọc Duy1-2/+2
A couple of newlines are also removed, because both error() and error_errno() automatically append a newline. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-04-06Merge branch 'sb/submodule-parallel-update'Libravatar Junio C Hamano1-1/+1
A major part of "git submodule update" has been ported to C to take advantage of the recently added framework to run download tasks in parallel. * sb/submodule-parallel-update: clone: allow an explicit argument for parallel submodule clones submodule update: expose parallelism to the user submodule helper: remove double 'fatal: ' prefix git submodule update: have a dedicated helper for cloning run_processes_parallel: rename parameters for the callbacks run_processes_parallel: treat output of children as byte array submodule update: direct error message to stderr fetching submodules: respect `submodule.fetchJobs` config option submodule-config: drop check against NULL submodule-config: keep update strategy around
2016-03-01fetching submodules: respect `submodule.fetchJobs` config optionLibravatar Stefan Beller1-1/+1
This allows to configure fetching and updating in parallel without having the command line option. This moved the responsibility to determine how many parallel processes to start from builtin/fetch to submodule.c as we need a way to communicate "The user did not specify the number of parallel processes in the command line options" in the builtin fetch. The submodule code takes care of the precedence (CLI > config > default). Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-26Merge branch 'jk/tighten-alloc'Libravatar Junio C Hamano1-1/+1
Update various codepaths to avoid manually-counted malloc(). * jk/tighten-alloc: (22 commits) ewah: convert to REALLOC_ARRAY, etc convert ewah/bitmap code to use xmalloc diff_populate_gitlink: use a strbuf transport_anonymize_url: use xstrfmt git-compat-util: drop mempcpy compat code sequencer: simplify memory allocation of get_message test-path-utils: fix normalize_path_copy output buffer size fetch-pack: simplify add_sought_entry fast-import: simplify allocation in start_packfile write_untracked_extension: use FLEX_ALLOC helper prepare_{git,shell}_cmd: use argv_array use st_add and st_mult for allocation size computation convert trivial cases to FLEX_ARRAY macros use xmallocz to avoid size arithmetic convert trivial cases to ALLOC_ARRAY convert manual allocations to argv_array argv-array: add detach function add helpers for allocating flex-array structs harden REALLOC_ARRAY and xcalloc against size_t overflow tree-diff: catch integer overflow in combine_diff_path allocation ...
2016-02-26Merge branch 'tg/git-remote'Libravatar Junio C Hamano1-3/+2
The internal API to interact with "remote.*" configuration variables has been streamlined. * tg/git-remote: remote: use remote_is_configured() for add and rename remote: actually check if remote exits remote: simplify remote_is_configured() remote: use parse_config_key
2016-02-24Merge branch 'ew/force-ipv4'Libravatar Junio C Hamano1-0/+6
"git fetch" and friends that make network connections can now be told to only use ipv4 (or ipv6). * ew/force-ipv4: connect & http: support -4 and -6 switches for remote operations
2016-02-22use st_add and st_mult for allocation size computationLibravatar Jeff King1-1/+1
If our size computation overflows size_t, we may allocate a much smaller buffer than we expected and overflow it. It's probably impossible to trigger an overflow in most of these sites in practice, but it is easy enough convert their additions and multiplications into overflow-checking variants. This may be fixing real bugs, and it makes auditing the code easier. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-16remote: simplify remote_is_configured()Libravatar Thomas Gummerer1-3/+2
The remote_is_configured() function allows checking whether a remote exists or not. The function however only works if remote_get() wasn't called before calling it. In addition, it only checks the configuration for remotes, but not remotes or branches files. Make use of the origin member of struct remote instead, which indicates where the remote comes from. It will be set to some value if the remote is configured in any file in the repository, but is initialized to 0 if the remote is only created in make_remote(). Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-12connect & http: support -4 and -6 switches for remote operationsLibravatar Eric Wong1-0/+6
Sometimes it is necessary to force IPv4-only or IPv6-only operation on networks where name lookups may return a non-routable address and stall remote operations. The ssh(1) command has an equivalent switches which we may pass when we run them. There may be old ssh(1) implementations out there which do not support these switches; they should report the appropriate error in that case. rsync support is untouched for now since it is deprecated and scheduled to be removed. Signed-off-by: Eric Wong <normalperson@yhbt.net> Reviewed-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-02-05Merge branch 'js/close-packs-before-gc' into maintLibravatar Junio C Hamano1-0/+2
Many codepaths that run "gc --auto" before exiting kept packfiles mapped and left the file descriptors to them open, which was not friendly to systems that cannot remove files that are open. They now close the packs before doing so. * js/close-packs-before-gc: receive-pack: release pack files before garbage-collecting merge: release pack files before garbage-collecting am: release pack files before garbage-collecting fetch: release pack files before garbage-collecting
2016-02-05Merge branch 'js/fopen-harder' into maintLibravatar Junio C Hamano1-1/+1
Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR (e.g. COMMIT_EDITMSG) that is meant to be left after the command is done. This however did not work well if the repository is set to be shared with core.sharedRepository and the umask of the previous user is tighter. They have been made to work better by calling unlink(2) and retrying after fopen(3) fails with EPERM. * js/fopen-harder: Handle more file writes correctly in shared repos commit: allow editing the commit message even in shared repos
2016-01-26Merge branch 'js/close-packs-before-gc'Libravatar Junio C Hamano1-0/+2
Many codepaths that run "gc --auto" before exiting kept packfiles mapped and left the file descriptors to them open, which was not friendly to systems that cannot remove files that are open. They now close the packs before doing so. * js/close-packs-before-gc: receive-pack: release pack files before garbage-collecting merge: release pack files before garbage-collecting am: release pack files before garbage-collecting fetch: release pack files before garbage-collecting
2016-01-20Merge branch 'js/fopen-harder'Libravatar Junio C Hamano1-1/+1
Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR (e.g. COMMIT_EDITMSG) that is meant to be left after the command is done. This however did not work well if the repository is set to be shared with core.sharedRepository and the umask of the previous user is tighter. They have been made to work better by calling unlink(2) and retrying after fopen(3) fails with EPERM. * js/fopen-harder: Handle more file writes correctly in shared repos commit: allow editing the commit message even in shared repos
2016-01-13fetch: release pack files before garbage-collectingLibravatar Johannes Schindelin1-0/+2
Before auto-gc'ing, we need to make sure that the pack files are released in case they need to be repacked and garbage-collected. This fixes https://github.com/git-for-windows/git/issues/500 Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-01-11Handle more file writes correctly in shared reposLibravatar Johannes Schindelin1-1/+1
In shared repositories, we have to be careful when writing files whose permissions do not allow users other than the owner to write them. In particular, we force the marks file of fast-export and the FETCH_HEAD when fetching to be rewritten from scratch. This commit does not touch other calls to fopen() that want to write files: - commands that write to working tree files (core.sharedRepository does not affect permission bits of working tree files), e.g. .rej file created by "apply --reject", result of applying a previous conflict resolution by "rerere", "git merge-file". - git am, when splitting mails (git-am correctly cleans up its directory after finishing, so there is no need to share those files between users) - git submodule clone, when writing the .git file, because the file will not be overwritten - git_terminal_prompt() in compat/terminal.c, because it is not writing to a file at all - git diff --output, because the output file is clearly not intended to be shared between the users of the current repository - git fast-import, when writing a crash report, because the reports' file names are unique due to an embedded process ID - mailinfo() in mailinfo.c, because the output is clearly not intended to be shared between the users of the current repository - check_or_regenerate_marks() in remote-testsvn.c, because this is only used for Git's internal testing - git fsck, when writing lost&found blobs (this should probably be changed, but left as a low-hanging fruit for future contributors). Note that this patch does not touch callers of write_file() and write_file_gently(), which would benefit from the same scrutiny as to usage in shared repositories. Most notable users are branch, daemon, submodule & worktree, and a worrisome call in transport.c when updating one ref (which ignores the shared flag). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-12-16submodules: allow parallel fetching, add tests and documentationLibravatar Stefan Beller1-1/+5
This enables the work of the previous patches. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-11-20Remove get_object_hash.Libravatar brian m. carlson1-2/+2
Convert all instances of get_object_hash to use an appropriate reference to the hash member of the oid member of struct object. This provides no functional change, as it is essentially a macro substitution. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Add several uses of get_object_hash.Libravatar brian m. carlson1-2/+2
Convert most instances where the sha1 member of struct object is dereferenced to use get_object_hash. Most instances that are passed to functions that have versions taking struct object_id, such as get_sha1_hex/get_oid_hex, or instances that can be trivially converted to use struct object_id instead, are not converted. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-11-20Convert struct ref to use object_id.Libravatar brian m. carlson1-25/+25
Use struct object_id in three fields in struct ref and convert all the necessary places that use it. Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net> Signed-off-by: Jeff King <peff@peff.net>
2015-10-05use alloc_ref rather than hand-allocating "struct ref"Libravatar Jeff King1-2/+1
This saves us some manual computation, and eliminates a call to strcpy. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-10-05transport: use strbufs for status table "quickref" stringsLibravatar Jeff King1-10/+12
We generate range strings like "1234abcd...5678efab" for use in the the fetch and push status tables. We use fixed-size buffers along with strcat to do so. These aren't buggy, as our manual size computation is correct, but there's nothing checking that this is so. Let's switch them to strbufs instead, which are obviously correct, and make it easier to audit the code base for problematic calls to strcat(). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-25fetch: replace static buffer with xstrfmtLibravatar Jeff King1-5/+2
We parse the INFINITE_DEPTH constant into a static, fixed-size buffer using sprintf. This buffer is sufficiently large for the current constant, but it's a suspicious pattern, as the constant is defined far away, and it's not immediately obvious that 12 bytes are large enough to hold it. We can just use xstrfmt here, which gets rid of any question of the buffer size. It also removes any concerns with object lifetime, which means we do not have to wonder why this buffer deep within a conditional is marked "static" (we never free our newly allocated result, of course, but that's OK; it's global that lasts the lifetime of the whole program anyway). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-31Merge branch 'hv/submodule-config'Libravatar Junio C Hamano1-0/+1
The gitmodules API accessed from the C code learned to cache stuff lazily. * hv/submodule-config: submodule: allow erroneous values for the fetchRecurseSubmodules option submodule: use new config API for worktree configurations submodule: extract functions for config set and lookup submodule: implement a config API for lookup of .gitmodules values
2015-08-19Merge branch 'jk/git-path'Libravatar Junio C Hamano1-2/+2
git_path() and mkpath() are handy helper functions but it is easy to misuse, as the callers need to be careful to keep the number of active results below 4. Their uses have been reduced. * jk/git-path: memoize common git-path "constant" files get_repo_path: refactor path-allocation find_hook: keep our own static buffer refs.c: remove_empty_directories can take a strbuf refs.c: avoid git_path assignment in lock_ref_sha1_basic refs.c: avoid repeated git_path calls in rename_tmp_log refs.c: simplify strbufs in reflog setup and writing path.c: drop git_path_submodule refs.c: remove extra git_path calls from read_loose_refs remote.c: drop extraneous local variable from migrate_file prefer mkpathdup to mkpath in assignments prefer git_pathdup to git_path in some possibly-dangerous cases add_to_alternates_file: don't add duplicate entries t5700: modernize style cache.h: complete set of git_path_submodule helpers cache.h: clarify documentation for git_path, et al
2015-08-19submodule: allow erroneous values for the fetchRecurseSubmodules optionLibravatar Heiko Voigt1-0/+1
We should not die when reading the submodule config cache since the user might not be able to get out of that situation when the configuration is part of the history. We should handle this condition later when the value is about to be used. Signed-off-by: Heiko Voigt <hvoigt@hvoigt.net> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-17Merge branch 'mh/get-remote-group-fix'Libravatar Junio C Hamano1-8/+6
An off-by-one error made "git remote" to mishandle a remote with a single letter nickname. * mh/get-remote-group-fix: get_remote_group(): use skip_prefix() get_remote_group(): eliminate superfluous call to strcspn() get_remote_group(): rename local variable "space" to "wordlen" get_remote_group(): handle remotes with single-character names
2015-08-10memoize common git-path "constant" filesLibravatar Jeff King1-2/+2
One of the most common uses of git_path() is to pass a constant, like git_path("MERGE_MSG"). This has two drawbacks: 1. The return value is a static buffer, and the lifetime is dependent on other calls to git_path, etc. 2. There's no compile-time checking of the pathname. This is OK for a one-off (after all, we have to spell it correctly at least once), but many of these constant strings appear throughout the code. This patch introduces a series of functions to "memoize" these strings, which are essentially globals for the lifetime of the program. We compute the value once, take ownership of the buffer, and return the cached value for subsequent calls. cache.h provides a helper macro for defining these functions as one-liners, and defines a few common ones for global use. Using a macro is a little bit gross, but it does nicely document the purpose of the functions. If we need to touch them all later (e.g., because we learned how to change the git_dir variable at runtime, and need to invalidate all of the stored values), it will be much easier to have the complete list. Note that the shared-global functions have separate, manual declarations. We could do something clever with the macros (e.g., expand it to a declaration in some places, and a declaration _and_ a definition in path.c). But there aren't that many, and it's probably better to stay away from too-magical macros. Likewise, if we abandon the C preprocessor in favor of generating these with a script, we could get much fancier. E.g., normalizing "FOO/BAR-BAZ" into "git_path_foo_bar_baz". But the small amount of saved typing is probably not worth the resulting confusion to readers who want to grep for the function's definition. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-28get_remote_group(): use skip_prefix()Libravatar Michael Haggerty1-2/+1
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-28get_remote_group(): eliminate superfluous call to strcspn()Libravatar Michael Haggerty1-2/+2
There is no need to call it if value is the empty string. This also eliminates code duplication. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-28get_remote_group(): rename local variable "space" to "wordlen"Libravatar Michael Haggerty1-5/+5
Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-28get_remote_group(): handle remotes with single-character namesLibravatar Michael Haggerty1-2/+1
The code for splitting a whitespace-separated list of values in "remotes.<name>" had an off-by-one error that caused it to skip over remotes whose names consist of a single character. Also remove unnecessary braces. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-22prune_refs(): use delete_refs()Libravatar Michael Haggerty1-8/+17
The old version just looped over the references to delete, calling delete_ref() on each one. But that has quadratic behavior, because each call to delete_ref() might have to rewrite the packed-refs file. This can be very expensive in a repository with a large number of references. In some (admittedly extreme) repositories, we've seen cases where the ref-pruning part of fetch takes multiple tens of minutes. Instead call delete_refs(), which (aside from being less code) has the optimization that it only rewrites the packed-refs file a single time. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-25builtin/fetch: rewrite to take an object_id argumentLibravatar Michael Haggerty1-12/+11
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 parameterLibravatar Michael Haggerty1-2/+6
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>
2015-05-11Merge branch 'nd/multiple-work-trees'Libravatar Junio C Hamano1-2/+3
A replacement for contrib/workdir/git-new-workdir that does not rely on symbolic links and make sharing of objects and refs safer by making the borrowee and borrowers aware of each other. * nd/multiple-work-trees: (41 commits) prune --worktrees: fix expire vs worktree existence condition t1501: fix test with split index t2026: fix broken &&-chain t2026 needs procondition SANITY git-checkout.txt: a note about multiple checkout support for submodules checkout: add --ignore-other-wortrees checkout: pass whole struct to parse_branchname_arg instead of individual flags git-common-dir: make "modules/" per-working-directory directory checkout: do not fail if target is an empty directory t2025: add a test to make sure grafts is working from a linked checkout checkout: don't require a work tree when checking out into a new one git_path(): keep "info/sparse-checkout" per work-tree count-objects: report unused files in $GIT_DIR/worktrees/... gc: support prune --worktrees gc: factor out gc.pruneexpire parsing code gc: style change -- no SP before closing parenthesis checkout: clean up half-prepared directories in --to mode checkout: reject if the branch is already checked out elsewhere prune: strategies for linked checkouts checkout: support checking out into a new working directory ...
2015-03-05Merge branch 'mh/refs-have-new'Libravatar Junio C Hamano1-2/+4
Simplify the ref transaction API around how "the ref should be pointing at this object" is specified. * mh/refs-have-new: refs.h: remove duplication in function docstrings update_ref(): improve documentation ref_transaction_verify(): new function to check a reference's value ref_transaction_delete(): check that old_sha1 is not null_sha1 ref_transaction_create(): check that new_sha1 is valid commit: avoid race when creating orphan commits commit: add tests of commit races ref_transaction_delete(): remove "have_old" parameter ref_transaction_update(): remove "have_old" parameter struct ref_update: move "have_old" into "flags" refs.c: change some "flags" to "unsigned int" refs: remove the gap in the REF_* constant values refs: move REF_DELETING to refs.c
2015-02-17ref_transaction_update(): remove "have_old" parameterLibravatar Michael Haggerty1-2/+4
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>
2015-02-13do not include the same header twiceLibravatar Дилян Палаузов1-1/+0
A few files include the same header file directly more than once. As all these headers protect themselves against repeated inclusion by the "#ifndef FOO_H / #define FOO_H / ... / #endif" idiom, leave only the first inclusion and remove the later inclusion as a no-op clean-up. Signed-off-by: Дилян Палаузов <git-dpa@aegee.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-01path.c: make get_pathname() call sites return const char *Libravatar Nguyễn Thái Ngọc Duy1-2/+3
Before the previous commit, get_pathname returns an array of PATH_MAX length. Even if git_path() and similar functions does not use the whole array, git_path() caller can, in theory. After the commit, get_pathname() may return a buffer that has just enough room for the returned string and git_path() caller should never write beyond that. Make git_path(), mkpath() and git_path_submodule() return a const buffer to make sure callers do not write in it at all. This could have been part of the previous commit, but the "const" conversion is too much distraction from the core changes in path.c. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-11-06Merge branch 'jk/fetch-reflog-df-conflict'Libravatar Junio C Hamano1-1/+1
Corner-case bugfixes for "git fetch" around reflog handling. * jk/fetch-reflog-df-conflict: ignore stale directories when checking reflog existence fetch: load all default config at startup
2014-11-04fetch: load all default config at startupLibravatar Jeff King1-1/+1
When we start the git-fetch program, we call git_config to load all config, but our callback only processes the fetch.prune option; we do not chain to git_default_config at all. This means that we may not load some core configuration which will have an effect. For instance, we do not load core.logAllRefUpdates, which impacts whether or not we create reflogs in a bare repository. Note that I said "may" above. It gets even more exciting. If we have to transfer actual objects as part of the fetch, then we call fetch_pack as part of the same process. That function loads its own config, which does chain to git_default_config, impacting global variables which are used by the rest of fetch. But if the fetch is a pure ref update (e.g., a new ref which is a copy of an old one), we skip fetch_pack entirely. So we get inconsistent results depending on whether or not we have actual objects to transfer or not! Let's just load the core config at the start of fetch, so we know we have it (we may also load it again as part of fetch_pack, but that's OK; it's designed to be idempotent). Our tests check both cases (with and without a pack). We also check similar behavior for push for good measure, but it already works as expected. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-10-15fetch.c: change s_update_ref to use a ref transactionLibravatar Ronnie Sahlberg1-10/+24
Change s_update_ref to use a ref transaction for the ref update. 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>
2014-08-18fetch: silence git-gc if --quiet is givenLibravatar Nguyễn Thái Ngọc Duy1-0/+2
Noticed-by: Matthew Flaschen <mflaschen@wikimedia.org> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-08-18fetch: convert argv_gc_auto to struct argv_arrayLibravatar Nguyễn Thái Ngọc Duy1-4/+4
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-07-09Merge branch 'jk/xstrfmt'Libravatar Junio C Hamano1-7/+2
* jk/xstrfmt: setup_git_env(): introduce git_path_from_env() helper unique_path: fix unlikely heap overflow walker_fetch: fix minor memory leak merge: use argv_array when spawning merge strategy sequencer: use argv_array_pushf setup_git_env: use git_pathdup instead of xmalloc + sprintf use xstrfmt to replace xmalloc + strcpy/strcat use xstrfmt to replace xmalloc + sprintf use xstrdup instead of xmalloc + strcpy use xstrfmt in favor of manual size calculations strbuf: add xstrfmt helper
2014-06-19use xstrfmt to replace xmalloc + strcpy/strcatLibravatar Jeff King1-7/+2
It's easy to get manual allocation calculations wrong, and the use of strcpy/strcat raise red flags for people looking for buffer overflows (though in this case each site was fine). It's also shorter to use xstrfmt, and the printf-format tends to be easier for a reader to see what the final string will look like. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-06-05fetch: allow explicit --refmap to override configurationLibravatar Junio C Hamano1-3/+32
Since the introduction of opportunisitic updates of remote-tracking branches, started at around f2690487 (fetch: opportunistically update tracking refs, 2013-05-11) with a few updates in v1.8.4 era, the remote.*.fetch configuration always kicks in even when a refspec to specify what to fetch is given on the command line, and there is no way to disable or override it per-invocation. Teach the command to pay attention to the --refmap=<lhs>:<rhs> command-line options that can be used to override the use of configured remote.*.fetch as the refmap. Signed-off-by: Junio C Hamano <gitster@pobox.com> ---