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2009-11-30Merge branch 'ap/maint-merge-strategy-list-fix'Libravatar Junio C Hamano1-1/+1
2009-11-29builtin-merge.c: call exclude_cmds() correctly.Libravatar Avery Pennarun1-1/+1
We need to call exclude_cmds() after the loop, not during the loop, because excluding a command from the array can change the indexes of objects in the array. The result is that, depending on file ordering, some commands weren't excluded as they should have been. Signed-off-by: Avery Pennarun <apenwarr@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-11-15Merge branch 'fc/doc-fast-forward'Libravatar Junio C Hamano1-6/+6
* fc/doc-fast-forward: Use 'fast-forward' all over the place Conflicts: builtin-merge.c
2009-11-10Merge branch 'maint'Libravatar Junio C Hamano1-1/+0
* maint: merge: do not setup worktree twice check-ref-format: update usage string Conflicts: builtin-check-ref-format.c
2009-11-10Merge branch 'bg/merge-ff-only'Libravatar Junio C Hamano1-1/+10
* bg/merge-ff-only: Teach 'git merge' and 'git pull' the option --ff-only
2009-11-10merge: do not setup worktree twiceLibravatar Jonathan Nieder1-1/+0
Builtins do not need to run setup_worktree() for themselves, since the builtin machinery runs it for them. Signed-off-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-30Teach 'git merge' and 'git pull' the option --ff-onlyLibravatar Björn Gustavsson1-1/+10
For convenience in scripts and aliases, add the option --ff-only to only allow fast-forwards (and up-to-date, despite the name). Disallow combining --ff-only and --no-ff, since they flatly contradict each other. Allow all other options to be combined with --ff-only (i.e. do not add any code to handle them specially), including the following options: * --strategy (one or more): As long as the chosen merge strategy results in up-to-date or fast-forward, the command will succeed. * --squash: I cannot imagine why anyone would want to squash commits only if fast-forward is possible, but I also see no reason why it should not be allowed. * --message: The message will always be ignored, but I see no need to explicitly disallow providing a redundant message. Acknowledgements: I did look at Yuval Kogman's earlier patch (107768 in gmane), mainly as shortcut to find my way in the code, but I did not copy anything directly. Signed-off-by: Björn Gustavsson <bgustavsson@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-24Use 'fast-forward' all over the placeLibravatar Felipe Contreras1-4/+4
It's a compound word. Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-10-19Refactor pretty_print_commit arguments into a structLibravatar Thomas Rast1-2/+5
pretty_print_commit() has a bunch of rarely-used arguments, and introducing more of them requires yet another update of all the call sites. Refactor most of them into a struct to make future extensions easier. The ones that stay "plain" arguments were chosen on the grounds that all callers put real arguments there, whereas some callers have 0/NULL for all arguments that were factored into the struct. We declare the struct 'const' to ensure none of the callers are bitten by the changed (no longer call-by-value) semantics. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-16Merge branch 'jk/maint-merge-msg-fix'Libravatar Junio C Hamano1-8/+12
* jk/maint-merge-msg-fix: merge: indicate remote tracking branches in merge message merge: fix incorrect merge message for ambiguous tag/branch add tests for merge message headings
2009-08-10Merge branch 'js/run-command-updates'Libravatar Junio C Hamano1-1/+1
* js/run-command-updates: api-run-command.txt: describe error behavior of run_command functions run-command.c: squelch a "use before assignment" warning receive-pack: remove unnecessary run_status report run_command: report failure to execute the program, but optionally don't run_command: encode deadly signal number in the return value run_command: report system call errors instead of returning error codes run_command: return exit code as positive value MinGW: simplify waitpid() emulation macros
2009-08-09merge: indicate remote tracking branches in merge messageLibravatar Jeff King1-0/+5
Previously when merging directly from a local tracking branch like: git merge origin/master The merge message said: Merge commit 'origin/master' * commit 'origin/master': ... Instead, let's be more explicit about what we are merging: Merge remote branch 'origin/master' * origin/master: ... We accomplish this by recognizing remote tracking branches in git-merge when we build the simulated FETCH_HEAD output that we feed to fmt-merge-msg. In addition to a new test in t7608, we have to tweak the expected output of t3409, which does such a merge. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-08-09merge: fix incorrect merge message for ambiguous tag/branchLibravatar Jeff King1-8/+7
If we have both a tag and a branch named "foo", then calling "git merge foo" will warn about the ambiguous ref, but merge the tag. When generating the commit message, though, we simply checked whether "refs/heads/foo" existed, and if it did, assumed it was a branch. This led to the statement "Merge branch 'foo'" in the commit message, which is quite wrong. Instead, we should use dwim_ref to find the actual ref used, and describe it appropriately. In addition to the test in t7608, we must also tweak the expected output of t4202, which was accidentally triggering this bug. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-07-06Merge branch 'tr/die_errno'Libravatar Junio C Hamano1-13/+16
* tr/die_errno: Use die_errno() instead of die() when checking syscalls Convert existing die(..., strerror(errno)) to die_errno() die_errno(): double % in strerror() output just in case Introduce die_errno() that appends strerror(errno) to die()
2009-07-05run_command: return exit code as positive valueLibravatar Johannes Sixt1-1/+1
As a general guideline, functions in git's code return zero to indicate success and negative values to indicate failure. The run_command family of functions followed this guideline. But there are actually two different kinds of failure: - failures of system calls; - non-zero exit code of the program that was run. Usually, a non-zero exit code of the program is a failure and means a failure to the caller. Except that sometimes it does not. For example, the exit code of merge programs (e.g. external merge drivers) conveys information about how the merge failed, and not all exit calls are actually failures. Furthermore, the return value of run_command is sometimes used as exit code by the caller. This change arranges that the exit code of the program is returned as a positive value, which can now be regarded as the "result" of the function. System call failures continue to be reported as negative values. Signed-off-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Use die_errno() instead of die() when checking syscallsLibravatar Thomas Rast1-9/+12
Lots of die() calls did not actually report the kind of error, which can leave the user confused as to the real problem. Use die_errno() where we check a system/library call that sets errno on failure, or one of the following that wrap such calls: Function Passes on error from -------- -------------------- odb_pack_keep open read_ancestry fopen read_in_full xread strbuf_read xread strbuf_read_file open or strbuf_read_file strbuf_readlink readlink write_in_full xwrite Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-27Convert existing die(..., strerror(errno)) to die_errno()Libravatar Thomas Rast1-4/+4
Change calls to die(..., strerror(errno)) to use the new die_errno(). In the process, also make slight style adjustments: at least state _something_ about the function that failed (instead of just printing the pathname), and put paths in single quotes. Signed-off-by: Thomas Rast <trast@student.ethz.ch> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-20Fix various sparse warnings in the git source codeLibravatar Linus Torvalds1-2/+2
There are a few remaining ones, but this fixes the trivial ones. It boils down to two main issues that sparse complains about: - warning: Using plain integer as NULL pointer Sparse doesn't like you using '0' instead of 'NULL'. For various good reasons, not the least of which is just the visual confusion. A NULL pointer is not an integer, and that whole "0 works as NULL" is a historical accident and not very pretty. A few of these remain: zlib is a total mess, and Z_NULL is just a 0. I didn't touch those. - warning: symbol 'xyz' was not declared. Should it be static? Sparse wants to see declarations for any functions you export. A lack of a declaration tends to mean that you should either add one, or you should mark the function 'static' to show that it's in file scope. A few of these remain: I only did the ones that should obviously just be made static. That 'wt_status_submodule_summary' one is debatable. It has a few related flags (like 'wt_status_use_color') which _are_ declared, and are used by builtin-commit.c. So maybe we'd like to export it at some point, but it's not declared now, and not used outside of that file, so 'static' it is in this patch. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-06-13Merge branch 'cb/maint-no-double-merge'Libravatar Junio C Hamano1-1/+4
* cb/maint-no-double-merge: refuse to merge during a merge
2009-06-01refuse to merge during a mergeLibravatar Clemens Buchacher1-1/+4
The following is an easy mistake to make for users coming from version control systems with an "update and commit"-style workflow. 1. git pull 2. resolve conflicts 3. git pull Step 3 overrides MERGE_HEAD, starting a new merge with dirty index. IOW, probably not what the user intended. Instead, refuse to merge again if a merge is in progress. Reported-by: Dave Olszewski <cxreg@pobox.com> Signed-off-by: Clemens Buchacher <drizzd@aon.at> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-05-25parse-opts: prepare for OPT_FILENAMELibravatar Stephen Boyd1-2/+2
To give OPT_FILENAME the prefix, we pass the prefix to parse_options() which passes the prefix to parse_options_start() which sets the prefix member of parse_opts_ctx accordingly. If there isn't a prefix in the calling context, passing NULL will suffice. Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-04-28Merge branch 'maint'Libravatar Junio C Hamano1-1/+1
* maint: grep: fix segfault when "git grep '('" is given Documentation: fix a grammatical error in api-builtin.txt builtin-merge: fix a typo in an error message
2009-04-28Merge branch 'maint-1.6.1' into maintLibravatar Junio C Hamano1-1/+1
* maint-1.6.1: grep: fix segfault when "git grep '('" is given Documentation: fix a grammatical error in api-builtin.txt builtin-merge: fix a typo in an error message
2009-04-28Merge branch 'maint-1.6.0' into maint-1.6.1Libravatar Junio C Hamano1-1/+1
* maint-1.6.0: grep: fix segfault when "git grep '('" is given Documentation: fix a grammatical error in api-builtin.txt builtin-merge: fix a typo in an error message
2009-04-27builtin-merge: fix a typo in an error messageLibravatar Allan Caffee1-1/+1
Signed-off-by: Allan Caffee <allan.caffee@gmail.com> Acked-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-22strbuf_branchname(): a wrapper for branch name shorthandsLibravatar Junio C Hamano1-3/+2
The function takes a user-supplied string that is supposed to be a branch name, and puts it in a strbuf after expanding possible shorthand notation. A handful of open coded sequence to do this in the existing code have been changed to use this helper function. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-03-22Rename interpret/substitute nth_last_branch functionsLibravatar Junio C Hamano1-1/+1
These allow you to say "git checkout @{-2}" to switch to the branch two "branch switching" ago by pretending as if you typed the name of that branch. As it is likely that we will be introducing more short-hands to write the name of a branch without writing it explicitly, rename the functions from "nth_last_branch" to more generic "branch_name", to prepare for different semantics. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-18Turn the flags in struct dir_struct into a single variableLibravatar Johannes Schindelin1-1/+1
By having flags represented as bits in the new member variable 'flags', it will be easier to use parse_options when dir_struct is involved. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-13Teach @{-1} to git mergeLibravatar Junio C Hamano1-3/+12
1.6.2 will have @{-1} syntax advertised as "usable anywhere you can use a branch name". However, "git merge @{-1}" did not work. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-02-04Replace deprecated dashed git commands in usageLibravatar Alexander Potashev1-2/+2
Signed-off-by: Alexander Potashev <aspotashev@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2009-01-17Move run_hook() from builtin-commit.c into run-command.c (libgit)Libravatar Stephan Beyer1-30/+1
A function that runs a hook is used in several Git commands. builtin-commit.c has the one that is most general for cases without piping. The one in builtin-gc.c prints some useful warnings. This patch moves a merged version of these variants into libgit and lets the other builtins use this libified run_hook(). The run_hook() function used in receive-pack.c feeds the standard input of the pre-receive or post-receive hooks. This function is renamed to run_receive_hook() because the libified run_hook() cannot handle this. Mentored-by: Daniel Barkalow <barkalow@iabervon.org> Mentored-by: Christian Couder <chriscool@tuxfamily.org> Signed-off-by: Stephan Beyer <s-beyer@gmx.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-12-04Make some of fwrite/fclose/write/close failures visibleLibravatar Alex Riesen1-2/+4
So that full filesystem conditions or permissions problems won't go unnoticed. Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-11-14Teach/Fix pull/fetch -q/-v optionsLibravatar Tuncer Ayaz1-7/+14
Implement git-pull --quiet and git-pull --verbose by adding the options to git-pull and fixing verbosity handling in git-fetch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-10-19Merge branch 'mv/merge-noff'Libravatar Junio C Hamano1-0/+10
* mv/merge-noff: builtin-commit: use reduce_heads() only when appropriate Conflicts: builtin-commit.c t/t7600-merge.sh
2008-10-12Replace calls to strbuf_init(&foo, 0) with STRBUF_INIT initializerLibravatar Brandon Casey1-18/+9
Many call sites use strbuf_init(&foo, 0) to initialize local strbuf variable "foo" which has not been accessed since its declaration. These can be replaced with a static initialization using the STRBUF_INIT macro which is just as readable, saves a function call, and takes up fewer lines. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-09Merge branch 'mv/merge-refresh'Libravatar Shawn O. Pearce1-0/+10
* mv/merge-refresh: builtin-merge: refresh the index before calling a strategy
2008-10-09Merge branch 'maint'Libravatar Shawn O. Pearce1-2/+2
* maint: builtin-apply: fix typo leading to stack corruption git-stash.sh: fix flawed fix of invalid ref handling (commit da65e7c1) builtin-merge.c: allocate correct amount of memory Makefile: do not set NEEDS_LIBICONV for Solaris 8 rebase -i: remove leftover debugging rebase -i: proper prepare-commit-msg hook argument when squashing
2008-10-09builtin-merge.c: allocate correct amount of memoryLibravatar Brandon Casey1-2/+2
Fix two memory allocation errors which allocate space for a pointer rather than enough space for the structure itself. This: struct commit_list *parent = xmalloc(sizeof(struct commit_list *)); should have been this: struct commit_list *parent = xmalloc(sizeof(struct commit_list)); But while we're at it, change the allocation to reference the variable it is allocating memory for to try to prevent a similar mistake, for example if the type is changed, in the future. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Acked-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-08Replace xmalloc/memset(0) pairs with xcallocLibravatar Brandon Casey1-2/+1
Many call sites immediately initialize allocated memory with zero after calling xmalloc. A single call to xcalloc can replace this two-call sequence. Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-03builtin-commit: use reduce_heads() only when appropriateLibravatar Miklos Vajna1-0/+10
Since commit 6bb6b034 (builtin-commit: use commit_tree(), 2008-09-10), builtin-commit performs a reduce_heads() unconditionally. However, it's not always needed, and in some cases even harmful. reduce_heads() is not needed for the initial commit or for an "ordinary" commit, because they don't have any or have only one parent, respectively. reduce_heads() must be avoided when 'git commit' is run after a 'git merge --no-ff --no-commit', otherwise it will turn the non-fast-forward merge into fast-forward. For the same reason, reduce_heads() must be avoided when amending such a merge commit. To resolve this issue, 'git merge' will write info about whether fast-forward is allowed or not to $GIT_DIR/MERGE_MODE. Based on this info, 'git commit' will only perform reduce_heads() when it's committing a merge and fast-forward is enabled. Also add test cases to ensure that non-fast-forward merges are committed and amended properly. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-10-03builtin-merge: refresh the index before calling a strategyLibravatar Miklos Vajna1-0/+10
In case a file is touched but has no real changes then we just have to update the index and should not error out. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-25Merge branch 'mv/merge-recursive'Libravatar Shawn O. Pearce1-29/+64
* mv/merge-recursive: builtin-merge: release the lockfile in try_merge_strategy() merge-recursive: get rid of virtual_id merge-recursive: move current_{file,directory}_set to struct merge_options merge-recursive: move the global obuf to struct merge_options merge-recursive: get rid of the index_only global variable merge-recursive: move call_depth to struct merge_options cherry-pick/revert: make direct internal call to merge_tree() builtin-merge: avoid run_command_v_opt() for recursive and subtree merge-recursive: introduce merge_options merge-recursive.c: Add more generic merge_recursive_generic() Split out merge_recursive() to merge-recursive.c
2008-09-25Merge branch 'mv/commit-tree'Libravatar Shawn O. Pearce1-2/+2
* mv/commit-tree: t7603: add new testcases to ensure builtin-commit uses reduce_heads() builtin-commit: use commit_tree() commit_tree(): add a new author parameter
2008-09-25Merge branch 'maint'Libravatar Shawn O. Pearce1-0/+2
* maint: Update release notes for 1.6.0.3 checkout: Do not show local changes when in quiet mode for-each-ref: Fix --format=%(subject) for log message without newlines git-stash.sh: don't default to refs/stash if invalid ref supplied maint: check return of split_cmdline to avoid bad config strings
2008-09-24maint: check return of split_cmdline to avoid bad config stringsLibravatar Deskin Miller1-0/+2
As the testcase demonstrates, it's possible for split_cmdline to return -1 and deallocate any memory it's allocated, if the config string is missing an end quote. In both the cases below, which are the only calling sites, the return isn't checked, and using the pointer causes a pretty immediate segfault. Signed-off-by: Deskin Miller <deskinm@umich.edu> Acked-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2008-09-10commit_tree(): add a new author parameterLibravatar Miklos Vajna1-2/+2
In case it's NULL, it is still determined automatically, but now you have the ability to specify one yourself. Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-09-06builtin-merge: release the lockfile in try_merge_strategy()Libravatar Miklos Vajna1-0/+1
Once we committed the locked index, we should release the lockfile. In most cases this is done automatically when the process ends, but this is not true in this case. [jc: with additional tests from Eric Raible] Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-30builtin-merge: avoid run_command_v_opt() for recursive and subtreeLibravatar Miklos Vajna1-29/+63
The try_merge_strategy() function always ran the strategy in a separate process, though this is not always necessary. The recursive and subtree strategy can be called without a fork(). This patch adds a check, and calls recursive in the same process without wasting resources. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Miklos Vajna <vmiklos@frugalware.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-28Remove useless memset of static command name lists in builtin-merge.cLibravatar Alex Riesen1-2/+0
The statics are always initialized with 0 Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2008-08-28Remove calculation of the longest command name from where it is not usedLibravatar Alex Riesen1-4/+4
Just calculate it where it is needed - it is cheap and trivial, as all the lengths are already there (stored when creating the command lists). Signed-off-by: Alex Riesen <raa.lkml@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>