Revision 56706dba33f5d4457395c651cf1cd033c6c03c7a authored by Jeff King on 23 October 2020, 07:08:43 UTC, committed by Junio C Hamano on 23 October 2020, 15:25:17 UTC
After running "rebase --committer-date-is-author-date", we confirm that the committer date is the same as the author date. However, we don't look at any other parts of the committer ident line to make sure we didn't screw them up. And indeed, there are a few bugs here. Depending on the rebase backend in use, we may accidentally use the author email instead of the committer's, or even an empty string. Let's teach our test_ctime_is_atime helper to check the committer name and email, which reveals several failing tests. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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sha1-array.h
#ifndef SHA1_ARRAY_H
#define SHA1_ARRAY_H
/**
* The API provides storage and manipulation of sets of object identifiers.
* The emphasis is on storage and processing efficiency, making them suitable
* for large lists. Note that the ordering of items is not preserved over some
* operations.
*
* Examples
* --------
* -----------------------------------------
* int print_callback(const struct object_id *oid,
* void *data)
* {
* printf("%s\n", oid_to_hex(oid));
* return 0; // always continue
* }
*
* void some_func(void)
* {
* struct sha1_array hashes = OID_ARRAY_INIT;
* struct object_id oid;
*
* // Read objects into our set
* while (read_object_from_stdin(oid.hash))
* oid_array_append(&hashes, &oid);
*
* // Check if some objects are in our set
* while (read_object_from_stdin(oid.hash)) {
* if (oid_array_lookup(&hashes, &oid) >= 0)
* printf("it's in there!\n");
*
* // Print the unique set of objects. We could also have
* // avoided adding duplicate objects in the first place,
* // but we would end up re-sorting the array repeatedly.
* // Instead, this will sort once and then skip duplicates
* // in linear time.
*
* oid_array_for_each_unique(&hashes, print_callback, NULL);
* }
*/
/**
* A single array of object IDs. This should be initialized by assignment from
* `OID_ARRAY_INIT`. The `oid` member contains the actual data. The `nr` member
* contains the number of items in the set. The `alloc` and `sorted` members
* are used internally, and should not be needed by API callers.
*/
struct oid_array {
struct object_id *oid;
int nr;
int alloc;
int sorted;
};
#define OID_ARRAY_INIT { NULL, 0, 0, 0 }
/**
* Add an item to the set. The object ID will be placed at the end of the array
* (but note that some operations below may lose this ordering).
*/
void oid_array_append(struct oid_array *array, const struct object_id *oid);
/**
* Perform a binary search of the array for a specific object ID. If found,
* returns the offset (in number of elements) of the object ID. If not found,
* returns a negative integer. If the array is not sorted, this function has
* the side effect of sorting it.
*/
int oid_array_lookup(struct oid_array *array, const struct object_id *oid);
/**
* Free all memory associated with the array and return it to the initial,
* empty state.
*/
void oid_array_clear(struct oid_array *array);
typedef int (*for_each_oid_fn)(const struct object_id *oid,
void *data);
/**
* Iterate over each element of the list, executing the callback function for
* each one. Does not sort the list, so any custom hash order is retained.
* If the callback returns a non-zero value, the iteration ends immediately
* and the callback's return is propagated; otherwise, 0 is returned.
*/
int oid_array_for_each(struct oid_array *array,
for_each_oid_fn fn,
void *data);
/**
* Iterate over each unique element of the list in sorted order, but otherwise
* behave like `oid_array_for_each`. If the array is not sorted, this function
* has the side effect of sorting it.
*/
int oid_array_for_each_unique(struct oid_array *array,
for_each_oid_fn fn,
void *data);
/**
* Apply the callback function `want` to each entry in the array, retaining
* only the entries for which the function returns true. Preserve the order
* of the entries that are retained.
*/
void oid_array_filter(struct oid_array *array,
for_each_oid_fn want,
void *cbdata);
#endif /* SHA1_ARRAY_H */
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