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authorJunio C Hamano <gitster@pobox.com>2014-06-03 12:06:40 -0700
committerJunio C Hamano <gitster@pobox.com>2014-06-03 12:06:40 -0700
commit8eaf517835d0534767d6a54d12d072ce30276ad9 (patch)
tree19368a64c5b367f601fb6ddd77d4c6e903a2df10 /git-compat-util.h
parentf008cef4abb2a4db766b4a152b304aca91a0101a (diff)
parent22f4c27e68f448d5fce316a73ea3f7bab6aa1268 (diff)
downloadgit-8eaf517835d0534767d6a54d12d072ce30276ad9.tar.gz
Merge branch 'ks/tree-diff-nway'
Instead of running N pair-wise diff-trees when inspecting a N-parent merge, find the set of paths that were touched by walking N+1 trees in parallel. These set of paths can then be turned into N pair-wise diff-tree results to be processed through rename detections and such. And N=2 case nicely degenerates to the usual 2-way diff-tree, which is very nice. * ks/tree-diff-nway: mingw: activate alloca combine-diff: speed it up, by using multiparent diff tree-walker directly tree-diff: rework diff_tree() to generate diffs for multiparent cases as well Portable alloca for Git tree-diff: reuse base str(buf) memory on sub-tree recursion tree-diff: no need to call "full" diff_tree_sha1 from show_path() tree-diff: rework diff_tree interface to be sha1 based tree-diff: diff_tree() should now be static tree-diff: remove special-case diff-emitting code for empty-tree cases tree-diff: simplify tree_entry_pathcmp tree-diff: show_path prototype is not needed anymore tree-diff: rename compare_tree_entry -> tree_entry_pathcmp tree-diff: move all action-taking code out of compare_tree_entry() tree-diff: don't assume compare_tree_entry() returns -1,0,1 tree-diff: consolidate code for emitting diffs and recursion in one place tree-diff: show_tree() is not needed tree-diff: no need to pass match to skip_uninteresting() tree-diff: no need to manually verify that there is no mode change for a path combine-diff: move changed-paths scanning logic into its own function combine-diff: move show_log_first logic/action out of paths scanning
Diffstat (limited to 'git-compat-util.h')
-rw-r--r--git-compat-util.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index f6d3a46622..7fe1ffda08 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -521,6 +521,14 @@ extern void release_pack_memory(size_t);
typedef void (*try_to_free_t)(size_t);
extern try_to_free_t set_try_to_free_routine(try_to_free_t);
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+# define xalloca(size) (alloca(size))
+# define xalloca_free(p) do {} while (0)
+#else
+# define xalloca(size) (xmalloc(size))
+# define xalloca_free(p) (free(p))
+#endif
extern char *xstrdup(const char *str);
extern void *xmalloc(size_t size);
extern void *xmallocz(size_t size);