- 06 4月, 2013 1 次提交
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由 Thomas Rast 提交于
lookup_line_range() is a good place to check that the range sets satisfy the invariants: they have been computed and set in earlier iterations, and we now start working with them. Signed-off-by: NThomas Rast <trast@inf.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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- 29 3月, 2013 3 次提交
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由 Thomas Rast 提交于
So far log -L only used the implicit diff filtering by pathspec. If the user specifies -M, we cannot do that, and so we simply handed the whole diff queue (which is approximately 'git show --raw') to diffcore_std(). Unfortunately this is very slow. We can optimize a lot if we throw out files that we know cannot possibly be interesting, in the same spirit that the pathspec filtering reduces the number of files. However, in this case, we have to be more careful. Because we want to look out for renames, we need to keep all filepairs where something was deleted. This is a bit hacky and should really be replaced by equivalent support in --follow, and just using that. However, in the meantime it speeds up 'log -M -L' by an order of magnitude. Signed-off-by: NThomas Rast <trast@student.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Thomas Rast 提交于
This new syntax finds a funcname matching /pattern/, and then takes from there up to (but not including) the next funcname. So you can say git log -L:main:main.c and it will dig up the main() function and show its line-log, provided there are no other funcnames matching 'main'. Signed-off-by: NThomas Rast <trast@student.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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由 Thomas Rast 提交于
This is a rewrite of much of Bo's work, mainly in an effort to split it into smaller, easier to understand routines. The algorithm is built around the struct range_set, which encodes a series of line ranges as intervals [a,b). This is used in two contexts: * A set of lines we are tracking (which will change as we dig through history). * To encode diffs, as pairs of ranges. The main routine is range_set_map_across_diff(). It processes the diff between a commit C and some parent P. It determines which diff hunks are relevant to the ranges tracked in C, and computes the new ranges for P. The algorithm is then simply to process history in topological order from newest to oldest, computing ranges and (partial) diffs. At branch points, we need to merge the ranges we are watching. We will find that many commits do not affect the chosen ranges, and mark them TREESAME (in addition to those already filtered by pathspec limiting). Another pass of history simplification then gets rid of such commits. This is wired as an extra filtering pass in the log machinery. This currently only reduces code duplication, but should allow for other simplifications and options to be used. Finally, we hook a diff printer into the output chain. Ideally we would wire directly into the diff logic, to optionally use features like word diff. However, that will require some major reworking of the diff chain, so we completely replace the output with our own diff for now. As this was a GSoC project, and has quite some history by now, many people have helped. In no particular order, thanks go to Jakub Narebski <jnareb@gmail.com> Jens Lehmann <Jens.Lehmann@web.de> Jonathan Nieder <jrnieder@gmail.com> Junio C Hamano <gitster@pobox.com> Ramsay Jones <ramsay@ramsay1.demon.co.uk> Will Palmer <wmpalmer@gmail.com> Apologies to everyone I forgot. Signed-off-by: NBo Yang <struggleyb.nku@gmail.com> Signed-off-by: NThomas Rast <trast@student.ethz.ch> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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