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* Merge branch 'jk/pack-objects-optim-mru'Junio C Hamano2016-10-102-5/+92
|\ | | | | | | | | | | | | | | | | | | | | | | | | "git pack-objects" in a repository with many packfiles used to spend a lot of time looking for/at objects in them; the accesses to the packfiles are now optimized by checking the most-recently-used packfile first. * jk/pack-objects-optim-mru: pack-objects: use mru list when iterating over packs pack-objects: break delta cycles before delta-search phase sha1_file: make packed_object_info public provide an initializer for "struct object_info"
| * pack-objects: use mru list when iterating over packsJeff King2016-08-111-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the original implementation of want_object_in_pack(), we always looked for the object in every pack, so the order did not matter for performance. As of the last few patches, however, we can now often break out of the loop early after finding the first instance, and avoid looking in the other packs at all. In this case, pack order can make a big difference, because we'd like to find the objects by looking at as few packs as possible. This patch switches us to the same packed_git_mru list that is now used by normal object lookups. Here are timings for p5303 on linux.git: Test HEAD^ HEAD ------------------------------------------------------------------------ 5303.3: rev-list (1) 31.31(31.07+0.23) 31.28(31.00+0.27) -0.1% 5303.4: repack (1) 40.35(38.84+2.60) 40.53(39.31+2.32) +0.4% 5303.6: rev-list (50) 31.37(31.15+0.21) 31.41(31.16+0.24) +0.1% 5303.7: repack (50) 58.25(68.54+2.03) 47.28(57.66+1.89) -18.8% 5303.9: rev-list (1000) 31.91(31.57+0.33) 31.93(31.64+0.28) +0.1% 5303.10: repack (1000) 304.80(376.00+3.92) 87.21(159.54+2.84) -71.4% The rev-list numbers are unchanged, which makes sense (they are not exercising this code at all). The 50- and 1000-pack repack cases show considerable improvement. The single-pack repack case doesn't, of course; there's nothing to improve. In fact, it gives us a baseline for how fast we could possibly go. You can see that though rev-list can approach the single-pack case even with 1000 packs, repack doesn't. The reason is simple: the loop we are optimizing is only part of what the repack is doing. After the "counting" phase, we do delta compression, which is much more expensive when there are multiple packs, because we have fewer deltas we can reuse (you can also see that these numbers come from a multicore machine; the CPU times are much higher than the wall-clock times due to the delta phase). So the good news is that in cases with many packs, we used to be dominated by the "counting" phase, and now we are dominated by the delta compression (which is faster, and which we have already parallelized). Here are similar numbers for git.git: Test HEAD^ HEAD --------------------------------------------------------------------- 5303.3: rev-list (1) 1.55(1.51+0.02) 1.54(1.53+0.00) -0.6% 5303.4: repack (1) 1.82(1.80+0.08) 1.82(1.78+0.09) +0.0% 5303.6: rev-list (50) 1.58(1.57+0.00) 1.58(1.56+0.01) +0.0% 5303.7: repack (50) 2.50(3.12+0.07) 2.31(2.95+0.06) -7.6% 5303.9: rev-list (1000) 2.22(2.20+0.02) 2.23(2.19+0.03) +0.5% 5303.10: repack (1000) 10.47(16.78+0.22) 7.50(13.76+0.22) -28.4% Not as impressive in terms of percentage, but still measurable wins. If you look at the wall-clock time improvements in the 1000-pack case, you can see that linux improved by roughly 10x as many seconds as git. That's because it has roughly 10x as many objects, and we'd expect this improvement to scale linearly with the number of objects (since the number of packs is kept constant). It's just that the "counting" phase is a smaller percentage of the total time spent for a git.git repack, and hence the percentage win is smaller. The implementation itself is a straightforward use of the MRU code. We only bother marking a pack as used when we know that we are able to break early out of the loop, for two reasons: 1. If we can't break out early, it does no good; we have to visit each pack anyway, so we might as well avoid even the minor overhead of managing the cache order. 2. The mru_mark() function reorders the list, which would screw up our traversal. So it is only safe to mark when we are about to break out of the loop. We could record the found pack and mark it after the loop finishes, of course, but that's more complicated and it doesn't buy us anything due to (1). Note that this reordering does have a potential impact on the final pack, as we store only a single "found" pack for each object, even if it is present in multiple packs. In principle, any copy is acceptable, as they all refer to the same content. But in practice, they may differ in whether they are stored as deltas, against which base, etc. This may have an impact on delta reuse, and even the delta search (since we skip pairs that were already in the same pack). It's not clear whether this change of order would hurt or even help average cases, though. The most likely reason to have duplicate objects is from the completion of thin packs (e.g., you have some objects in a "base" pack, then receive several pushes; the packs you receive may be thin on the wire, with deltas that refer to bases outside the pack, but we complete them with duplicate base objects when indexing them). In such a case the current code would always find the thin duplicates (because we currently walk the packs in reverse chronological order). Whereas with this patch, some of those duplicates would be found in the base pack instead. In my tests repacking a real-world case of linux.git with 3600 thin-pack pushes (on top of a large "base" pack), the resulting pack was about 0.04% larger with this patch. On the other hand, because we were more likely to hit the base pack, there were more opportunities for delta reuse, and we had 50,000 fewer objects to examine in the delta search. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * pack-objects: break delta cycles before delta-search phaseJeff King2016-08-111-0/+84
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We do not allow cycles in the delta graph of a pack (i.e., A is a delta of B which is a delta of A) for the obvious reason that you cannot actually access any of the objects in such a case. There's a last-ditch attempt to notice cycles during the write phase, during which we issue a warning to the user and write one of the objects out in full. However, this is "last-ditch" for two reasons: 1. By this time, it's too late to find another delta for the object, so the resulting pack is larger than it otherwise could be. 2. The warning is there because this is something that _shouldn't_ ever happen. If it does, then either: a. a pack we are reusing deltas from had its own cycle b. we are reusing deltas from multiple packs, and we found a cycle among them (i.e., A is a delta of B in one pack, but B is a delta of A in another, and we choose to use both deltas). c. there is a bug in the delta-search code So this code serves as a final check that none of these things has happened, warns the user, and prevents us from writing a bogus pack. Right now, (2b) should never happen because of the static ordering of packs in want_object_in_pack(). If two objects have a delta relationship, then they must be in the same pack, and therefore we will find them from that same pack. However, a future patch would like to change that static ordering, which will make (2b) a common occurrence. In preparation, we should be able to handle those kinds of cycles better. This patch does by introducing a cycle-breaking step during the get_object_details() phase, when we are deciding which deltas can be reused. That gives us the chance to feed the objects into the delta search as if the cycle did not exist. We'll leave the detection and warning in the write_object() phase in place, as it still serves as a check for case (2c). This does mean we will stop warning for (2a). That case is caused by bogus input packs, and we ideally would warn the user about it. However, since those cycles show up after picking reusable deltas, they look the same as (2b) to us; our new code will break the cycles early and the last-ditch check will never see them. We could do analysis on any cycles that we find to distinguish the two cases (i.e., it is a bogus pack if and only if every delta in the cycle is in the same pack), but we don't need to. If there is a cycle inside a pack, we'll run into problems not only reusing the delta, but accessing the object data at all. So when we try to dig up the actual size of the object, we'll hit that same cycle and kick in our usual complain-and-try-another-source code. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * provide an initializer for "struct object_info"Jeff King2016-08-111-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An all-zero initializer is fine for this struct, but because the first element is a pointer, call sites need to know to use "NULL" instead of "0". Otherwise some static checkers like "sparse" will complain; see d099b71 (Fix some sparse warnings, 2013-07-18) for example. So let's provide an initializer to make this easier to get right. But let's also comment that memset() to zero is explicitly OK[1]. One of the callers embeds object_info in another struct which is initialized via memset (expand_data in builtin/cat-file.c). Since our subset of C doesn't allow assignment from a compound literal, handling this in any other way is awkward, so we'd like to keep the ability to initialize by memset(). By documenting this property, it should make anybody who wants to change the initializer think twice before doing so. There's one other caller of interest. In parse_sha1_header(), we did not initialize the struct fully in the first place. This turned out not to be a bug because the sub-function it calls does not look at any other fields except the ones we did initialize. But that assumption might not hold in the future, so it's a dangerous construct. This patch switches it to initializing the whole struct, which protects us against unexpected reads of the other fields. [1] Obviously using memset() to initialize a pointer violates the C standard, but we long ago decided that it was an acceptable tradeoff in the real world. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | Merge branch 'rs/qsort'Junio C Hamano2016-10-1010-31/+19
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We call "qsort(array, nelem, sizeof(array[0]), fn)", and most of the time third parameter is redundant. A new QSORT() macro lets us omit it. * rs/qsort: show-branch: use QSORT use QSORT, part 2 coccicheck: use --all-includes by default remove unnecessary check before QSORT use QSORT add QSORT
| * | show-branch: use QSORTRené Scharfe2016-10-031-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Shorten the code by using QSORT instead of calling qsort(3) directly, as the former determines the element size automatically and checks if there are at least two elements to sort already. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | use QSORT, part 2René Scharfe2016-09-302-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | Convert two more qsort(3) calls to QSORT to reduce code size and for better safety and consistency. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | remove unnecessary check before QSORTRené Scharfe2016-09-301-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | Add a semantic patch for removing checks similar to the one that QSORT already does internally and apply it to the code base. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | use QSORTRené Scharfe2016-09-308-20/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Apply the semantic patch contrib/coccinelle/qsort.cocci to the code base, replacing calls of qsort(3) with QSORT. The resulting code is shorter and supports empty arrays with NULL pointers. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | Merge branch 'rs/cocci'Junio C Hamano2016-10-061-1/+1
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code clean-up with help from coccinelle tool continues. * rs/cocci: coccicheck: make transformation for strbuf_addf(sb, "...") more precise use strbuf_add_unique_abbrev() for adding short hashes, part 2 use strbuf_addstr() instead of strbuf_addf() with "%s", part 2 gitignore: ignore output files of coccicheck make target
| * | | use strbuf_addstr() instead of strbuf_addf() with "%s", part 2René Scharfe2016-09-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This is shorter and makes the intent clearer. bc57b9c0cc5a123365a922fa1831177e3fd607ed already converted three cases, this patch covers two more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | Merge branch 'jc/blame-abbrev'Junio C Hamano2016-10-061-1/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Almost everybody uses DEFAULT_ABBREV to refer to the default setting for the abbreviation, but "git blame" peeked into underlying variable bypassing the macro for no good reason. * jc/blame-abbrev: blame: use DEFAULT_ABBREV macro
| * | | | blame: use DEFAULT_ABBREV macroJunio C Hamano2016-09-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This does not make any practical difference in today's code, but everybody else accesses the default abbreviation length via the DEFAULT_ABBREV macro. Make sure this oddball codepath does not stray from the convention. Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | Merge branch 'vn/revision-shorthand-for-side-branch-log'Junio C Hamano2016-10-061-13/+41
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git log rev^..rev" is an often-used revision range specification to show what was done on a side branch merged at rev. This has gained a short-hand "rev^-1". In general "rev^-$n" is the same as "^rev^$n rev", i.e. what has happened on other branches while the history leading to nth parent was looking the other way. * vn/revision-shorthand-for-side-branch-log: revision: new rev^-n shorthand for rev^n..rev
| * | | | | revision: new rev^-n shorthand for rev^n..revVegard Nossum2016-09-271-13/+41
| |/ / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git log rev^..rev" is commonly used to show all work done on and merged from a side branch. This patch introduces a shorthand "rev^-" for this and additionally allows "rev^-$n" to mean "reachable from rev, excluding what is reachable from the nth parent of rev". For example, for a two-parent merge, you can use rev^-2 to get the set of commits which were made to the main branch while the topic branch was prepared. Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | Merge branch 'jk/ambiguous-short-object-names'Junio C Hamano2016-10-062-2/+4
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When given an abbreviated object name that is not (or more realistically, "no longer") unique, we gave a fatal error "ambiguous argument". This error is now accompanied by hints that lists the objects that begins with the given prefix. During the course of development of this new feature, numerous minor bugs were uncovered and corrected, the most notable one of which is that we gave "short SHA1 xxxx is ambiguous." twice without good reason. * jk/ambiguous-short-object-names: get_short_sha1: make default disambiguation configurable get_short_sha1: list ambiguous objects on error for_each_abbrev: drop duplicate objects sha1_array: let callbacks interrupt iteration get_short_sha1: mark ambiguity error for translation get_short_sha1: NUL-terminate hex prefix get_short_sha1: refactor init of disambiguation code get_short_sha1: parse tags when looking for treeish get_sha1: propagate flags to child functions get_sha1: avoid repeating ourselves via ONLY_TO_DIE get_sha1: detect buggy calls with multiple disambiguators
| * | | | | sha1_array: let callbacks interrupt iterationJeff King2016-09-262-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The callbacks for iterating a sha1_array must have a void return. This is unlike our usual for_each semantics, where a callback may interrupt iteration and have its value propagated. Let's switch it to the usual form, which will enable its use in more places (e.g., where we are replacing an existing iteration with a different data structure). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | Merge branch 'nd/init-core-worktree-in-multi-worktree-world'Junio C Hamano2016-10-032-48/+37
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git init" tried to record core.worktree in the repository's 'config' file when GIT_WORK_TREE environment variable was set and it was different from where GIT_DIR appears as ".git" at its top, but the logic was faulty when .git is a "gitdir:" file that points at the real place, causing trouble in working trees that are managed by "git worktree". This has been corrected. * nd/init-core-worktree-in-multi-worktree-world: init: kill git_link variable init: do not set unnecessary core.worktree init: kill set_git_dir_init() init: call set_git_dir_init() from within init_db() init: correct re-initialization from a linked worktree
| * | | | | | init: kill git_link variableNguyễn Thái Ngọc Duy2016-09-261-12/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | init: do not set unnecessary core.worktreeNguyễn Thái Ngọc Duy2016-09-261-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function needs_work_tree_config() that is called from create_default_files() is supposed to be fed the path to ".git" that looks as if it is at the top of the working tree, and decide if that location matches the actual worktree being used. This comparison allows "git init" to decide if core.worktree needs to be recorded in the working tree. In the current code, however, we feed the return value from get_git_dir(), which can be totally different from what the function expects when "gitdir" file is involved. Instead of giving the path to the ".git" at the top of the working tree, we end up feeding the actual path that the file points at. This original location of ".git" however is only known to init_db(). Make init_db() save it and have it passed to create_default_files() as a new parameter, which passes the correct location down to needs_work_tree_config() to fix this. Noticed-by: Max Nordlund <max.nordlund@sqore.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | init: kill set_git_dir_init()Nguyễn Thái Ngọc Duy2016-09-261-29/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a pure code move, necessary to kill the global variable git_link later (and also helps a bit in the next patch). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | init: call set_git_dir_init() from within init_db()Nguyễn Thái Ngọc Duy2016-09-262-15/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The next commit requires that set_git_dir_init() must be called before init_db(). Let's make sure nobody can do otherwise. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | init: correct re-initialization from a linked worktreeNguyễn Thái Ngọc Duy2016-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When 'git init' is called from a linked worktree, we treat '.git' dir (which is $GIT_COMMON_DIR/worktrees/something) as the main '.git' (i.e. $GIT_COMMON_DIR) and populate the whole repository skeleton in there. It does not harm anything (*) but it is still wrong. Since 'git init' calls set_git_dir() at preparation time, which indirectly calls get_common_dir() and correctly detects multiple worktree setup, all git_path_buf() calls in create_default_files() will return correct paths in both single and multiple worktree setups. The only thing left is copy_templates(), which targets $GIT_DIR, not $GIT_COMMON_DIR. Fix that with get_git_common_dir(). This function will return $GIT_DIR in single-worktree setup, so we don't have to make a special case for multiple-worktree here. (*) It does in fact, thanks to another bug. More on that later. Noticed-by: Max Nordlund <max.nordlund@sqore.com> Helped-by: Michael J Gruber <git@drmicha.warpmail.net> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | Merge branch 'rs/copy-array'Junio C Hamano2016-10-031-1/+1
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code cleanup. * rs/copy-array: use COPY_ARRAY add COPY_ARRAY
| * | | | | | | use COPY_ARRAYRené Scharfe2016-09-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a semantic patch for converting certain calls of memcpy(3) to COPY_ARRAY() and apply that transformation to the code base. The result is shorter and safer code. For now only consider calls where source and destination have the same type, or in other words: easy cases. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | Merge branch 'jc/worktree-config'Junio C Hamano2016-09-301-0/+2
|\ \ \ \ \ \ \ \ | |_|_|_|_|_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git worktree", even though it used the default_abbrev setting that ought to be affected by core.abbrev configuration variable, ignored the variable setting. The command has been taught to read the default set of configuration variables to correct this. * jc/worktree-config: worktree: honor configuration variables
| * | | | | | | worktree: honor configuration variablesJunio C Hamano2016-09-271-0/+2
| | |_|_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The command accesses default_abbrev (defined in environment.c and is updated via core.abbrev configuration), but never makes any call to git_config(). The output from "worktree list" ignores the abbrev setting for this reason. Make a call to git_config() to read the default set of configuration variables at the beginning of the command. Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | Merge branch 'ah/misc-message-fixes' into maintJunio C Hamano2016-09-192-2/+2
| |\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Message cleanup. * ah/misc-message-fixes: unpack-trees: do not capitalize "working" git-merge-octopus: do not capitalize "octopus" git-rebase--interactive: fix English grammar cat-file: put spaces around pipes in usage string am: put spaces around pipe in usage string
| * \ \ \ \ \ \ Merge branch 'jc/forbid-symbolic-ref-d-HEAD' into maintJunio C Hamano2016-09-191-0/+2
| |\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git symbolic-ref -d HEAD" happily removes the symbolic ref, but the resulting repository becomes an invalid one. Teach the command to forbid removal of HEAD. * jc/forbid-symbolic-ref-d-HEAD: symbolic-ref -d: do not allow removal of HEAD
* | \ \ \ \ \ \ \ Merge branch 'jk/clone-recursive-progress'Junio C Hamano2016-09-272-5/+29
|\ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git clone --recurse-submodules" lost the progress eye-candy in recent update, which has been corrected. * jk/clone-recursive-progress: clone: pass --progress decision to recursive submodules
| * | | | | | | | | clone: pass --progress decision to recursive submodulesJeff King2016-09-222-5/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When cloning with "--recursive", we'd generally expect submodules to show progress reports if the main clone did, too. In older versions of git, this mostly worked out of the box. Since we show progress by default when stderr is a tty, and since the child clones inherit the parent stderr, then both processes would come to the same decision by default. If the parent clone was asked for "--quiet", we passed down "--quiet" to the child. However, if stderr was not a tty and the user specified "--progress", we did not propagate this to the child. That's a minor bug, but things got much worse when we switched recently to submodule--helper's update_clone command. With that change, the stderr of the child clones are always connected to a pipe, and we never output progress at all. This patch teaches git-submodule and git-submodule--helper how to pass down an explicit "--progress" flag when cloning. The clone command then decides to propagate that flag based on the cloning decision made earlier (which takes into account isatty(2) of the parent process, existing --progress or --quiet flags, etc). Since the child processes always run without a tty on stderr, we don't have to worry about passing an explicit "--no-progress"; it's the default for them. This fixes the recent loss of progress during recursive clones. And as a bonus, it makes: git clone --recursive --progress ... 2>&1 | cat work by triggering progress explicitly in the children. Signed-off-by: Jeff King <peff@peff.net> Acked-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | Merge branch 'rs/checkout-init-macro'Junio C Hamano2016-09-272-3/+2
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code cleanup. * rs/checkout-init-macro: introduce CHECKOUT_INIT
| * | | | | | | | | | introduce CHECKOUT_INITRené Scharfe2016-09-222-3/+2
| | |_|_|_|_|_|/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a static initializer for struct checkout and use it throughout the code base. It's shorter, avoids a memset(3) call and makes sure the base_dir member is initialized to a valid (empty) string. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | Merge branch 'tg/add-chmod+x-fix'Junio C Hamano2016-09-274-36/+33
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git add --chmod=+x <pathspec>" added recently only toggled the executable bit for paths that are either new or modified. This has been corrected to flip the executable bit for all paths that match the given pathspec. * tg/add-chmod+x-fix: t3700-add: do not check working tree file mode without POSIXPERM t3700-add: create subdirectory gently add: modify already added files when --chmod is given read-cache: introduce chmod_index_entry update-index: add test for chmod flags
| * | | | | | | | | | add: modify already added files when --chmod is givenThomas Gummerer2016-09-153-21/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the chmod option was added to git add, it was hooked up to the diff machinery, meaning that it only works when the version in the index differs from the version on disk. As the option was supposed to mirror the chmod option in update-index, which always changes the mode in the index, regardless of the status of the file, make sure the option behaves the same way in git add. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | read-cache: introduce chmod_index_entryThomas Gummerer2016-09-151-14/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As there are chmod options for both add and update-index, introduce a new chmod_index_entry function to do the work. Use it in update-index, while it will be used in add in the next patch. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | update-index: add test for chmod flagsThomas Gummerer2016-09-151-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently there is no test checking the expected behaviour when multiple chmod flags with different arguments are passed. As argument handling is not in line with other git commands it's easy to miss and accidentally change the current behaviour. While there, fix the argument type of chmod_path, which takes an int, but had a char passed in. Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | Merge branch 'nd/checkout-disambiguation'Junio C Hamano2016-09-271-3/+3
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git checkout <word>" does not follow the usual disambiguation rules when the <word> can be both a rev and a path, to allow checking out a branch 'foo' in a project that happens to have a file 'foo' in the working tree without having to disambiguate. This was poorly documented and the check was incorrect when the command was run from a subdirectory. * nd/checkout-disambiguation: checkout: fix ambiguity check in subdir checkout.txt: document a common case that ignores ambiguation rules checkout: add some spaces between code and comment
| * | | | | | | | | | | checkout: fix ambiguity check in subdirNguyễn Thái Ngọc Duy2016-09-211-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The two functions in parse_branchname_arg(), verify_non_filename and check_filename, need correct prefix in order to reconstruct the paths and check for their existence. With NULL prefix, they just check paths at top dir instead. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
| * | | | | | | | | | | checkout: add some spaces between code and commentNguyễn Thái Ngọc Duy2016-09-081-1/+1
| | |_|_|/ / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | Merge branch 'jt/format-patch-rfc'Junio C Hamano2016-09-271-1/+9
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some projects, it is common to use "[RFC PATCH]" as the subject prefix for a patch meant for discussion rather than application. A new option "--rfc" was a short-hand for "--subject-prefix=RFC PATCH" to help the participants of such projects. * jt/format-patch-rfc: format-patch: add "--rfc" for the common case of [RFC PATCH]
| * | | | | | | | | | | format-patch: add "--rfc" for the common case of [RFC PATCH]Josh Triplett2016-09-211-1/+9
| |/ / / / / / / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add an alias for --subject-prefix='RFC PATCH', which is used commonly in some development communities to deserve such a short-hand. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Reviewed-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | Merge branch 'mh/diff-indent-heuristic'Junio C Hamano2016-09-271-0/+12
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Output from "git diff" can be made easier to read by selecting which lines are common and which lines are added/deleted intelligently when the lines before and after the changed section are the same. A command line option is added to help with the experiment to find a good heuristics. * mh/diff-indent-heuristic: blame: honor the diff heuristic options and config parse-options: add parse_opt_unknown_cb() diff: improve positioning of add/delete blocks in diffs xdl_change_compact(): introduce the concept of a change group recs_match(): take two xrecord_t pointers as arguments is_blank_line(): take a single xrecord_t as argument xdl_change_compact(): only use heuristic if group can't be matched xdl_change_compact(): fix compaction heuristic to adjust ixo
| * | | | | | | | | | | blame: honor the diff heuristic options and configMichael Haggerty2016-09-191-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Teach "git blame" and "git annotate" the --compaction-heuristic and --indent-heuristic options that are now supported by "git diff". Also teach them to honor the `diff.compactionHeuristic` and `diff.indentHeuristic` configuration options. It would be conceivable to introduce separate configuration options for "blame" and "annotate"; for example `blame.compactionHeuristic` and `blame.indentHeuristic`. But it would be confusing to users if blame output is inconsistent with diff output, so it makes more sense for them to respect the same configuration. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | | Merge branch 'rs/cocci'Junio C Hamano2016-09-273-4/+5
|\ \ \ \ \ \ \ \ \ \ \ \ | |_|_|_|/ / / / / / / / |/| | | | | | | | | / / | | |_|_|_|_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code cleanup. * rs/cocci: use strbuf_addstr() for adding constant strings to a strbuf, part 2 add coccicheck make target contrib/coccinelle: fix semantic patch for oid_to_hex_r()
| * | | | | | | | | | use strbuf_addstr() for adding constant strings to a strbuf, part 2René Scharfe2016-09-153-4/+5
| | |/ / / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace uses of strbuf_addf() for adding strings with more lightweight strbuf_addstr() calls. This makes the intent clearer and avoids potential issues with printf format specifiers. 02962d36845b89145cd69f8bc65e015d78ae3434 already converted six cases, this patch covers eleven more. A semantic patch for Coccinelle is included for easier checking for new cases that might be introduced in the future. Signed-off-by: Rene Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | Merge branch 'jk/reduce-gc-aggressive-depth'Junio C Hamano2016-09-221-1/+1
|\ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "git gc --aggressive" used to limit the delta-chain length to 250, which is way too deep for gaining additional space savings and is detrimental for runtime performance. The limit has been reduced to 50. * jk/reduce-gc-aggressive-depth: gc: default aggressive depth to 50
| * | | | | | | | | | gc: default aggressive depth to 50Jeff King2016-08-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit message is long and has lots of background and numbers. The summary is: the current default of 250 doesn't save much space, and costs CPU. It's not a good tradeoff. Read on for details. The "--aggressive" flag to git-gc does three things: 1. use "-f" to throw out existing deltas and recompute from scratch 2. use "--window=250" to look harder for deltas 3. use "--depth=250" to make longer delta chains Items (1) and (2) are good matches for an "aggressive" repack. They ask the repack to do more computation work in the hopes of getting a better pack. You pay the costs during the repack, and other operations see only the benefit. Item (3) is not so clear. Allowing longer chains means fewer restrictions on the deltas, which means potentially finding better ones and saving some space. But it also means that operations which access the deltas have to follow longer chains, which affects their performance. So it's a tradeoff, and it's not clear that the tradeoff is even a good one. The existing "250" numbers for "--aggressive" come originally from this thread: http://public-inbox.org/git/alpine.LFD.0.9999.0712060803430.13796@woody.linux-foundation.org/ where Linus says: So when I said "--depth=250 --window=250", I chose those numbers more as an example of extremely aggressive packing, and I'm not at all sure that the end result is necessarily wonderfully usable. It's going to save disk space (and network bandwidth - the delta's will be re-used for the network protocol too!), but there are definitely downsides too, and using long delta chains may simply not be worth it in practice. There are some numbers in that thread, but they're mostly focused on the improved window size, and measure the improvement from --depth=250 and --window=250 together. E.g.: http://public-inbox.org/git/9e4733910712062006l651571f3w7f76ce64c6650dff@mail.gmail.com/ talks about the improved run-time of "git-blame", which comes from the reduced pack size. But most of that reduction is coming from --window=250, whereas most of the extra costs come from --depth=250. There's a link in that thread showing that increasing the depth beyond 50 doesn't seem to help much with the size: https://vcscompare.blogspot.com/2008/06/git-repack-parameters.html but again, no discussion of the timing impact. In an earlier thread from Ted Ts'o which discussed setting the non-aggressive default (from 10 to 50): http://public-inbox.org/git/20070509134958.GA21489%40thunk.org/ we have more numbers, with the conclusion that going past 50 does not help size much, and hurts the speed of normal operations. So from that, we might guess that 50 is actually a sweet spot, even for aggressive, if we interpret aggressive to "spend time now to make a better pack". It is not clear that "--depth=250" is actually a better pack. It may be slightly _smaller_, but it carries a run-time penalty. Here are some more recent timings I did to verify that. They show three things: - the size of the resulting pack (so disk saved to store, bandwidth saved on clones/fetches) - the cost of "rev-list --objects --all", which shows the effect of the delta chains on trees (commits typically don't delta, and the command doesn't touch the blobs at all) - the cost of "log -Sfoo", which will additionally access each blob All cases were repacked with "git repack -adf --depth=$d --window=250" (so basically, what would happen if we tweaked the "gc --aggressive" default depth). The timings are all wall-clock best-of-3. The machine itself has plenty of RAM compared to the repositories (which is probably typical of most workstations these days), so we're really measuring CPU usage, as the whole thing will be in disk cache after the first run. The core.deltaBaseCacheLimit is at its default of 96MiB. It's possible that tweaking it would have some impact on the tests, as some of them (especially "log -S" on a large repo) are likely to overflow that. But bumping that carries a run-time memory cost, so for these tests, I focused on what we could do just with the on-disk pack tradeoffs. Each test is done for four depths: 250 (the current value), 50 (the current default that tested well previously), 100 (to show something on the larger side, which previous tests showed was not a good tradeoff), and 10 (the very old default, which previous tests showed was worse than 50). Here are the numbers for linux.git: depth | size | % | rev-list | % | log -Sfoo | % -------+-------+-------+----------+--------+-----------+------- 250 | 967MB | n/a | 48.159s | n/a | 378.088 | n/a 100 | 971MB | +0.4% | 41.471s | -13.9% | 342.060 | -9.5% 50 | 979MB | +1.2% | 37.778s | -21.6% | 311.040s | -17.7% 10 | 1.1GB | +6.6% | 32.518s | -32.5% | 279.890s | -25.9% and for git.git: depth | size | % | rev-list | % | log -Sfoo | % -------+-------+-------+----------+--------+-----------+------- 250 | 48MB | n/a | 2.215s | n/a | 20.922s | n/a 100 | 49MB | +0.5% | 2.140s | -3.4% | 17.736s | -15.2% 50 | 49MB | +1.7% | 2.099s | -5.2% | 15.418s | -26.3% 10 | 53MB | +9.3% | 2.001s | -9.7% | 12.677s | -39.4% You can see that that the CPU savings for regular operations improves as we decrease the depth. The savings are less for "rev-list" on a smaller repository than they are for blob-accessing operations, or even rev-list on a larger repository. This may mean that a larger delta cache would help (though setting core.deltaBaseCacheLimit by itself doesn't). But we can also see that the space savings are not that great as the depth goes higher. Saving 5-10% between 10 and 50 is probably worth the CPU tradeoff. Saving 1% to go from 50 to 100, or another 0.5% to go from 100 to 250 is probably not. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
* | | | | | | | | | | Merge branch 'va/i18n'Junio C Hamano2016-09-228-103/+106
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | More i18n. * va/i18n: i18n: update-index: mark warnings for translation i18n: show-branch: mark plural strings for translation i18n: show-branch: mark error messages for translation i18n: receive-pack: mark messages for translation notes: spell first word of error messages in lowercase i18n: notes: mark error messages for translation i18n: merge-recursive: mark verbose message for translation i18n: merge-recursive: mark error messages for translation i18n: config: mark error message for translation i18n: branch: mark option description for translation i18n: blame: mark error messages for translation
| * | | | | | | | | | | i18n: update-index: mark warnings for translationVasco Almeida2016-09-151-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt> Signed-off-by: Junio C Hamano <gitster@pobox.com>