kernel/git - git - PowerEL Git System

Commit Graph

Author	SHA1	Message	Date
Linus Torvalds	1f1e895fcc	Add "named object array" concept We've had this notion of a "object_list" for a long time, which eventually grew a "name" member because some users (notably git-rev-list) wanted to name each object as it is generated. That object_list is great for some things, but it isn't all that wonderful for others, and the "name" member is generally not used by everybody. This patch splits the users of the object_list array up into two: the traditional list users, who want the list-like format, and who don't actually use or want the name. And another class of users that really used the list as an extensible array, and generally wanted to name the objects. The patch is fairly straightforward, but it's also biggish. Most of it really just cleans things up: switching the revision parsing and listing over to the array makes things like the builtin-diff usage much simpler (we now see exactly how many members the array has, and we don't get the objects reversed from the order they were on the command line). One of the main reasons for doing this at all is that the malloc overhead of the simple object list was actually pretty high, and the array is just a lot denser. So this patch brings down memory usage by git-rev-list by just under 3% (on top of all the other memory use optimizations) on the mozilla archive. It does add more lines than it removes, and more importantly, it adds a whole new infrastructure for maintaining lists of objects, but on the other hand, the new dynamic array code is pretty obvious. The change to builtin-diff-tree.c shows a fairly good example of why an array interface is sometimes more natural, and just much simpler for everybody. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	9202434cbd	gitweb.cgi history not shown This does: - add a "rev.simplify_history" flag which defaults to on - it turns it off for "git whatchanged" (which thus now has real semantics outside of "git log") - it adds a command line flag ("--full-history") to turn it off for others (ie you can make "git log" and "gitk" etc get the semantics if you want to. Now, just as an example of _why_ you really really really want to simplify history by default, apply this patch, install it, and try these two command lines: gitk --full-history -- git.c gitk -- git.c and compare the output. So with this, you can also now do git whatchanged -p -- gitweb.cgi git log -p --full-history -- gitweb.cgi and it will show the old history of gitweb.cgi, even though it's not relevant to the _current_ state of the name "gitweb.cgi" NOTE NOTE NOTE! It will still actually simplify away merges that didn't change anything at all into either child. That creates these bogus strange discontinuities if you look at it with "gitk" (look at the --full-history gitk output for git.c, and you'll see a few strange cases). So the whole "--parent" thing ends up somewhat bogus with --full-history because of this, but I'm not sure it's worth even worrying about. I don't think you'd ever want to really use "--full-history" with the graphical representation, I just give it as an example exactly to show _why_ doing so would be insane. I think this is trivial enough and useful enough to be worth merging into the stable branch. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	20ff06805c	format-patch: resurrect extra headers from config Once again, if you have [format] headers = "Origamization: EvilEmpire\n" format-patch will add these headers just after the "Subject:" line. Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	cf2251b604	format-patch --signoff This resurrects --signoff option to format-patch. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	698ce6f87e	fmt-patch: Support --attach This patch touches a couple of files, because it adds options to print a custom text just after the subject of a commit, and just after the diffstat. [jc: made "many dashes" used as the boundary leader into a single variable, to reduce the possibility of later tweaks to miscount the number of dashes to break it.] Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Johannes Schindelin	596524b33d	Teach fmt-patch about --numbered Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	9153983310	Log message printout cleanups On Sun, 16 Apr 2006, Junio C Hamano wrote: > > In the mid-term, I am hoping we can drop the generate_header() > callchain _and_ the custom code that formats commit log in-core, > found in cmd_log_wc(). Ok, this was nastier than expected, just because the dependencies between the different log-printing stuff were absolutely _everywhere_, but here's a patch that does exactly that. The patch is not very easy to read, and the "--patch-with-stat" thing is still broken (it does not call the "show_log()" thing properly for merges). That's not a new bug. In the new world order it _should_ do something like if (rev->logopt) show_log(rev, rev->logopt, "---\n"); but it doesn't. I haven't looked at the --with-stat logic, so I left it alone. That said, this patch removes more lines than it adds, and in particular, the "cmd_log_wc()" loop is now a very clean: while ((commit = get_revision(rev)) != NULL) { log_tree_commit(rev, commit); free(commit->buffer); commit->buffer = NULL; } so it doesn't get much prettier than this. All the complexity is entirely hidden in log-tree.c, and any code that needs to flush the log literally just needs to do the "if (rev->logopt) show_log(...)" incantation. I had to make the combined_diff() logic take a "struct rev_info" instead of just a "struct diff_options", but that part is pretty clean. This does change "git whatchanged" from using "diff-tree" as the commit descriptor to "commit", and I changed one of the tests to reflect that new reality. Otherwise everything still passes, and my other tests look fine too. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	1b65a5aa44	rev-list --boundary: show boundary commits even when limited otherwise. The boundary commits are shown for UI like gitk to draw them as soon as topo-order sorting allows, and should not be omitted by get_revision() filtering logic. As long as their immediate child commits are shown, we should not filter them out. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	cb8f64b4e3	log/whatchanged/show - log formatting cleanup. This moves the decision to print the log message, while diff options are in effect, to log-tree. It gives behaviour closer to the traditional one. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	ba1d45051e	Tentative built-in "git show" This uses the "--no-walk" flag that I never actually implemented (but I'm sure I mentioned it) to make "git show" be essentially the same thing as "git whatchanged --no-walk". It just refuses to add more interesting parents to the revision walking history, so you don't actually get any history, you just get the commit you asked for. I was going to add "--no-walk" as a real argument flag to git-rev-list too, but I'm not sure anybody actually needs it. Although it might be useful for porcelain, so I left the door open. [jc: ported to the unified option structure by Linus] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	c5ccd8be43	Tentative built-in "git show" This uses the "--no-walk" flag that I never actually implemented (but I'm sure I mentioned it) to make "git show" be essentially the same thing as "git whatchanged --no-walk". It just refuses to add more interesting parents to the revision walking history, so you don't actually get any history, you just get the commit you asked for. I was going to add "--no-walk" as a real argument flag to git-rev-list too, but I'm not sure anybody actually needs it. Although it might be useful for porcelain, so I left the door open. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	183df63940	Revert all the rev-list option parsing changes. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	cd2bdc5309	Common option parsing for "git log --diff" and friends This basically does a few things that are sadly somewhat interdependent, and nontrivial to split out - get rid of "struct log_tree_opt" The fields in "log_tree_opt" are moved into "struct rev_info", and all users of log_tree_opt are changed to use the rev_info struct instead. - add the parsing for the log_tree_opt arguments to "setup_revision()" - make setup_revision set a flag (revs->diff) if the diff-related arguments were used. This allows "git log" to decide whether it wants to show diffs or not. - make setup_revision() also initialize the diffopt part of rev_info (which we had from before, but we just didn't initialize it) - make setup_revision() do all the "finishing touches" on it all (it will do the proper flag combination logic, and call "diff_setup_done()") Now, that was the easy and straightforward part. The slightly more involved part is that some of the programs that want to use the new-and-improved rev_info parsing don't actually want _commits_, they may want tree'ish arguments instead. That meant that I had to change setup_revision() to parse the arguments not into the "revs->commits" list, but into the "revs->pending_objects" list. Then, when we do "prepare_revision_walk()", we walk that list, and create the sorted commit list from there. This actually cleaned some stuff up, but it's the less obvious part of the patch, and re-organized the "revision.c" logic somewhat. It actually paves the way for splitting argument parsing _entirely_ out of "revision.c", since now the argument parsing really is totally independent of the commit walking: that didn't use to be true, since there was lots of overlap with get_commit_reference() handling etc, now the _only_ overlap is the shared (and trivial) "add_pending_object()" thing. However, I didn't do that file split, just because I wanted the diff itself to be smaller, and show the actual changes more clearly. If this gets accepted, I'll do further cleanups then - that includes the file split, but also using the new infrastructure to do a nicer "git diff" etc. Even in this form, it actually ends up removing more lines than it adds. It's nice to note how simple and straightforward this makes the built-in "git log" command, even though it continues to support all the diff flags too. It doesn't get much simpler that this. I think this is worth merging soonish, because it does allow for future cleanup and even more sharing of code. However, it obviously touches "revision.c", which is subtle. I've tested that it passes all the tests we have, and it passes my "looks sane" detector, but somebody else should also give it a good look-over. [jc: squashed the original and three "oops this too" updates, with another fix-up.] Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	c4e05b1a22	blame and friends: adjust to multiple pathspec change. This makes things that include revision.h build again. Blame is also built, but I am not sure how well it works (or how well it worked to begin with) -- it was relying on tree-diff to be using whatever pathspec was used the last time, which smells a bit suspicious. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	3381c790e5	Make "--parents" logs also be incremental The parent rewriting feature caused us to create the whole history in one go, and then simplify it later, because of how rewrite_parents() had been written. However, with a little tweaking, it's perfectly possible to do even that one incrementally. Right now, this doesn't really much matter, because every user of "--parents" will probably generally _also_ use "--topo-order", which will cause the old non-incremental behaviour anyway. However, I'm hopeful that we could make even the topological sort incremental, or at least _partially_ so (for example, make it incremental up to the first merge). In the meantime, this at least moves things in the right direction, and removes a strange special case. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	7b0c996679	Move "--parent" parsing into generic revision.c library code Not only do we do it in both rev-list.c and git.c, the revision walking code will soon want to know whether we should rewrite parenthood information or not. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	384e99a4a9	rev-list --boundary With the new --boundary flag, the output from rev-list includes the UNINTERESING commits at the boundary, which are usually not shown. Their object names are prefixed with '-'. For example, with this graph: C side / A---B---D master You would get something like this: $ git rev-list --boundary --header --parents side..master D B tree D^{tree} parent B ... log message for commit D here ... \0-B A tree B^{tree} parent A ... log message for commit B here ... \0 Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Fredrik Kuivinen	8efdc326c9	rev-lib: Make it easy to do rename tracking (take 2) prune_fn in the rev_info structure is called in place of try_to_simplify_commit. This makes it possible to do rename tracking with a custom try_to_simplify_commit-like function. This commit also introduces init_revisions which initialises the rev_info structure with default values. Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Junio C Hamano	7ae0b0cb65	git-log (internal): more options. This ports the following options from rev-list based git-log implementation: * -<n>, -n<n>, and -n <n>. I am still wondering if we want this natively supported by setup_revisions(), which already takes --max-count. We may want to move them in the next round. Also I am not sure if we can get away with not setting revs->limited when we set max-count. The latest rev-list.c and revision.c in this series do not, so I left them as they are. * --pretty and --pretty=<fmt>. * --abbrev=<n> and --no-abbrev. The previous commit already handles time-based limiters (--since, --until and friends). The remaining things that rev-list based git-log happens to do are not useful in a pure log-viewing purposes, and not ported: * --bisect (obviously). * --header. I am actually in favor of doing the NUL terminated record format, but rev-list based one always passed --pretty, which defeated this option. Maybe next round. * --parents. I do not think of a reason a log viewer wants this. The flag is primarily for feeding squashed history via pipe to downstream tools. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	765ac8ec46	Rip out merge-order and make "git log <paths>..." work again. Well, assuming breaking --merge-order is fine, here's a patch (on top of the other ones) that makes git log <filename> actually work, as far as I can tell. I didn't add the logic for --before/--after flags, but that should be pretty trivial, and is independent of this anyway. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	a4a88b2bab	git-rev-list libification: rev-list walking This actually moves the "meat" of the revision walking from rev-list.c to the new library code in revision.h. It introduces the new functions void prepare_revision_walk(struct rev_info revs); struct commit get_revision(struct rev_info *revs); to prepare and then walk the revisions that we have. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	d9a83684c4	Splitting rev-list into revisions lib, end of beginning. This makes the rewrite easier to validate in that revision flag parsing and warlking part are now all in rev_info structure. Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	ae563542bf	First cut at libifying revlist generation This really just splits things up partially, and creates the interface to set things up by parsing the command line. No real code changes so far, although the parsing of filenames is a bit stricter. In particular, if there is a "--", then we do not accept any filenames before it, and if there isn't any "--", then we check that _all_ paths listed are valid, not just the first one. The new argument parsing automatically also gives us "--default" and "--not" handling as in git-rev-parse. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>	19 years ago
Linus Torvalds	b2c0071867	Include <limits.h> in commit.c for ULONG_MAX. Remove old "revision.h". The old revision.h helper header isn't used any more, but I never noticed it until I started grepping for ULONG_MAX users.	20 years ago
Linus Torvalds	08ca0b04ba	Make the revision tracking track the object types too. This allows fsck to verify not just that an object exists, but also that it has the type it was expected to have.	20 years ago
Linus Torvalds	7d60ad7cc9	Make "parse_commit" return the "struct revision" for the commit. Also, make it a fatal error to pass in a non-commit object. The callers never checked, so better check here. This simplifies merge-base further. It's now so trivial that it's almost ridiculous.	20 years ago
Linus Torvalds	01796b0e91	Make "revision.h" slightly better to use. - mark_reachable() can be more generic, marking the reachable revisions with an arbitrary mask. - date parsing will parse to a date of 0 rather than ULONG_MAX for the bad old case, sorting the dates correctly.	20 years ago
Linus Torvalds	89d21f4b64	Move "parse_commit()" into common revision.h file. This also drops the old-style date parsing. We just don't care enough, since we dropped that format pretty early. Yes, this could do with some cleanup, and a common library file. Some day.	20 years ago
Linus Torvalds	458754a9fe	Use common "revision.h" header for both fsck and rev-tree. It's really a very generic thing: the notion of one sha1 revision referring to another one. "fsck" uses it for all nodes, and "rev-tree" only tracks commit-node relationships, but the code was already the same - now we just make that explicit by moving it to a common header file.	20 years ago

28 Commits (3553309f5ba7f9fed61ac2767d53677c309826b2)