mirrors/git
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'maint'

Browse Source 
* maint:
  Small correction in reading of commit headers
  Documentation: fix typo in git-remote.txt
  Add test for blame corner cases.
  blame: -C -C -C
  blame: Notice a wholesale incorporation of an existing file.
  Fix --boundary output
  diff format documentation: describe raw combined diff format
  Mention version 1.5.1 in tutorial and user-manual
  Add --no-rebase option to git-svn dcommit
  Fix markup in git-svn man page
This commit is contained in:
Junio C Hamano
2007-05-06 00:21:03 -07:00
parent cc0e6c5adc e102d4353d
commit 125a5f1c2a
10 changed files with 253 additions and 58 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
builtin-blame.c
View File

@ -59,6 +59,7 @@ static int num_commits;
#define PICKAXE_BLAME_MOVE 01
#define PICKAXE_BLAME_COPY 02
#define PICKAXE_BLAME_COPY_HARDER 04
#define PICKAXE_BLAME_COPY_HARDEST 010
/*
* blame for a blame_entry with score lower than these thresholds
@ -894,6 +895,39 @@ static void copy_split_if_better(struct scoreboard *sb,
memcpy(best_so_far, this, sizeof(struct blame_entry [3]));
}
/*
* We are looking at a part of the final image represented by
* ent (tlno and same are offset by ent->s_lno).
* tlno is where we are looking at in the final image.
* up to (but not including) same match preimage.
* plno is where we are looking at in the preimage.
*
* <-------------- final image ---------------------->
* <------ent------>
* ^tlno ^same
* <---------preimage----->
* ^plno
*
* All line numbers are 0-based.
*/
static void handle_split(struct scoreboard *sb,
struct blame_entry *ent,
int tlno, int plno, int same,
struct origin *parent,
struct blame_entry *split)
{
if (ent->num_lines <= tlno)
return;
if (tlno < same) {
struct blame_entry this[3];
tlno += ent->s_lno;
same += ent->s_lno;
split_overlap(this, ent, tlno, plno, same, parent);
copy_split_if_better(sb, split, this);
decref_split(this);
}
}
/*
* Find the lines from parent that are the same as ent so that
* we can pass blames to it. file_p has the blob contents for
@ -926,26 +960,21 @@ static void find_copy_in_blob(struct scoreboard *sb,
patch = compare_buffer(file_p, &file_o, 1);
/*
* file_o is a part of final image we are annotating.
* file_p partially may match that image.
*/
memset(split, 0, sizeof(struct blame_entry [3]));
plno = tlno = 0;
for (i = 0; i < patch->num; i++) {
struct chunk *chunk = &patch->chunks[i];
/* tlno to chunk->same are the same as ent */
if (ent->num_lines <= tlno)
break;
if (tlno < chunk->same) {
struct blame_entry this[3];
split_overlap(this, ent,
tlno + ent->s_lno, plno,
chunk->same + ent->s_lno,
parent);
copy_split_if_better(sb, split, this);
decref_split(this);
}
handle_split(sb, ent, tlno, plno, chunk->same, parent, split);
plno = chunk->p_next;
tlno = chunk->t_next;
}
/* remainder, if any, all match the preimage */
handle_split(sb, ent, tlno, plno, ent->num_lines, parent, split);
free_patch(patch);
}
@ -1055,8 +1084,9 @@ static int find_copy_in_parent(struct scoreboard *sb,
* and this code needs to be after diff_setup_done(), which
* usually makes find-copies-harder imply copy detection.
*/
if ((opt & PICKAXE_BLAME_COPY_HARDER) &&
(!porigin || strcmp(target->path, porigin->path)))
if ((opt & PICKAXE_BLAME_COPY_HARDEST)
|| ((opt & PICKAXE_BLAME_COPY_HARDER)
&& (!porigin || strcmp(target->path, porigin->path))))
diff_opts.find_copies_harder = 1;
if (is_null_sha1(target->commit->object.sha1))
@ -2136,6 +2166,15 @@ int cmd_blame(int argc, const char **argv, const char *prefix)
blame_move_score = parse_score(arg+2);
}
else if (!prefixcmp(arg, "-C")) {
/*
* -C enables copy from removed files;
* -C -C enables copy from existing files, but only
* when blaming a new file;
* -C -C -C enables copy from existing files for
* everybody
*/
if (opt & PICKAXE_BLAME_COPY_HARDER)
opt |= PICKAXE_BLAME_COPY_HARDEST;
if (opt & PICKAXE_BLAME_COPY)
opt |= PICKAXE_BLAME_COPY_HARDER;
opt |= PICKAXE_BLAME_COPY | PICKAXE_BLAME_MOVE;