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checkout: break case-changes into delete/add

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When checking out with a case-insensitive working directory, we
want to change the case of items in the working directory to
reflect changes that occured in the checkout target.  Diff now
has an option to break case-changing renames into delete/add.
This commit is contained in:
Edward Thomson 2015-03-31 16:29:35 -04:00 committed by Edward Thomson
parent 05f690122e
commit 4beab1f8bb
3 changed files with 21 additions and 2 deletions
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7
include/git2/diff.h
View File

@ -124,6 +124,11 @@ typedef enum {
/** Use case insensitive filename comparisons */
GIT_DIFF_IGNORE_CASE = (1u << 10),
/** May be combined with `GIT_DIFF_IGNORE_CASE` to specify that a file
* that has changed case will be returned as an add/delete pair.
*/
GIT_DIFF_INCLUDE_CASECHANGE = (1u << 11),
/** If the pathspec is set in the diff options, this flags means to
* apply it as an exact match instead of as an fnmatch pattern.
*/
@ -220,7 +225,7 @@ typedef struct git_diff git_diff;
typedef enum {
GIT_DIFF_FLAG_BINARY = (1u << 0), /**< file(s) treated as binary data */
GIT_DIFF_FLAG_NOT_BINARY = (1u << 1), /**< file(s) treated as text data */
GIT_DIFF_FLAG_VALID_ID = (1u << 2), /**< `id` value is known correct */
GIT_DIFF_FLAG_VALID_ID = (1u << 2), /**< `id` value is known correct */
} git_diff_flag_t;
/**

3
src/checkout.c
View File

@ -2485,7 +2485,8 @@ int git_checkout_iterator(
GIT_DIFF_INCLUDE_IGNORED |
GIT_DIFF_INCLUDE_TYPECHANGE |
GIT_DIFF_INCLUDE_TYPECHANGE_TREES |
GIT_DIFF_SKIP_BINARY_CHECK;
GIT_DIFF_SKIP_BINARY_CHECK |
GIT_DIFF_INCLUDE_CASECHANGE;
if (data.opts.checkout_strategy & GIT_CHECKOUT_DISABLE_PATHSPEC_MATCH)
diff_opts.flags |= GIT_DIFF_DISABLE_PATHSPEC_MATCH;
if (data.opts.paths.count > 0)

13
src/diff.c
View File

@ -822,6 +822,19 @@ static int maybe_modified(
status = GIT_DELTA_UNMODIFIED;
}
/* If we want case changes, then break this into a delete of the old
* and an add of the new so that consumers can act accordingly (eg,
* checkout will update the case on disk.)
*/
if (DIFF_FLAG_IS_SET(diff, GIT_DIFF_IGNORE_CASE) &&
DIFF_FLAG_IS_SET(diff, GIT_DIFF_INCLUDE_CASECHANGE) &&
strcmp(oitem->path, nitem->path) != 0) {
if (!(error = diff_delta__from_one(diff, GIT_DELTA_DELETED, oitem)))
error = diff_delta__from_one(diff, GIT_DELTA_ADDED, nitem);
return error;
}
return diff_delta__from_two(
diff, status, oitem, omode, nitem, nmode,
git_oid_iszero(&noid) ? NULL : &noid, matched_pathspec);