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Merge branch 'en/rename-directory-detection-reboot'

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Rename detection logic in "diff" family that is used in "merge" has
learned to guess when all of x/a, x/b and x/c have moved to z/a,
z/b and z/c, it is likely that x/d added in the meantime would also
want to move to z/d by taking the hint that the entire directory
'x' moved to 'z'.  A bug causing dirty files involved in a rename
to be overwritten during merge has also been fixed as part of this
work.  Incidentally, this also avoids updating a file in the
working tree after a (non-trivial) merge whose result matches what
our side originally had.

* en/rename-directory-detection-reboot: (36 commits)
  merge-recursive: fix check for skipability of working tree updates
  merge-recursive: make "Auto-merging" comment show for other merges
  merge-recursive: fix remainder of was_dirty() to use original index
  merge-recursive: fix was_tracked() to quit lying with some renamed paths
  t6046: testcases checking whether updates can be skipped in a merge
  merge-recursive: avoid triggering add_cacheinfo error with dirty mod
  merge-recursive: move more is_dirty handling to merge_content
  merge-recursive: improve add_cacheinfo error handling
  merge-recursive: avoid spurious rename/rename conflict from dir renames
  directory rename detection: new testcases showcasing a pair of bugs
  merge-recursive: fix remaining directory rename + dirty overwrite cases
  merge-recursive: fix overwriting dirty files involved in renames
  merge-recursive: avoid clobbering untracked files with directory renames
  merge-recursive: apply necessary modifications for directory renames
  merge-recursive: when comparing files, don't include trees
  merge-recursive: check for file level conflicts then get new name
  merge-recursive: add computation of collisions due to dir rename & merging
  merge-recursive: check for directory level conflicts
  merge-recursive: add get_directory_renames()
  merge-recursive: make a helper function for cleanup for handle_renames
  ...
This commit is contained in:
Junio C Hamano
2018-05-23 14:38:19 +09:00
parent c9aac55c4e 1de70dbd1a
commit c67de747f4
11 changed files with 6092 additions and 178 deletions
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16
strbuf.c
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@ -1,5 +1,6 @@
#include "cache.h"
#include "refs.h"
#include "string-list.h"
#include "utf8.h"
int starts_with(const char *str, const char *prefix)
@ -180,6 +181,21 @@ struct strbuf **strbuf_split_buf(const char *str, size_t slen,
return ret;
}
void strbuf_add_separated_string_list(struct strbuf *str,
const char *sep,
struct string_list *slist)
{
struct string_list_item *item;
int sep_needed = 0;
for_each_string_list_item(item, slist) {
if (sep_needed)
strbuf_addstr(str, sep);
strbuf_addstr(str, item->string);
sep_needed = 1;
}
}
void strbuf_list_free(struct strbuf **sbs)
{
struct strbuf **s = sbs;