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for-each-ref: introduce filter_refs()

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Introduce filter_refs() which will act as an API for filtering
a set of refs. Based on the type of refs the user has requested,
we iterate through those refs and apply filters as per the
given ref_filter structure and finally store the filtered refs
in the ref_array structure.

Currently this will wrap around ref_filter_handler(). Hence,
ref_filter_handler is made file scope static.

As users of this API will no longer send a ref_filter_cbdata
structure directly, we make the elements of ref_filter_cbdata
pointers. We can now use the information given by the users
to obtain our own ref_filter_cbdata structure. Changes are made to
support the change in ref_filter_cbdata structure.

Make 'for-each-ref' use this API.

Helped-by: Junio C Hamano <gitster@pobox.com>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Reviewed-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Karthik Nayak
2015-06-14 01:07:28 +05:30
committed by Junio C Hamano
parent c95b758587
commit 14de7fba34
3 changed files with 49 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
ref-filter.h
View File

@ -13,6 +13,9 @@
#define QUOTE_PYTHON 4
#define QUOTE_TCL 8
#define FILTER_REFS_INCLUDE_BROKEN 0x1
#define FILTER_REFS_ALL 0x2
struct atom_value {
const char *s;
unsigned long ul; /* used for sorting when not FIELD_STR */
@ -42,12 +45,17 @@ struct ref_filter {
};
struct ref_filter_cbdata {
struct ref_array array;
struct ref_filter filter;
struct ref_array *array;
struct ref_filter *filter;
};
/* Callback function for for_each_*ref(). This filters the refs based on the filters set */
int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data);
/*
* API for filtering a set of refs. Based on the type of refs the user
* has requested, we iterate through those refs and apply filters
* as per the given ref_filter structure and finally store the
* filtered refs in the ref_array structure.
*/
int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type);
/* Clear all memory allocated to ref_array */
void ref_array_clear(struct ref_array *array);
/* Parse format string and sort specifiers */