mirror/ git
1
0
Fork 0
mirror of https://github.com/git/git.git synced 2024-05-18 19:26:07 +02:00
Code

merge-ort: add a special minimal index just for renormalization 

renormalize_buffer() requires an index_state, which is something that
merge-ort does not operate with.  However, all the renormalization code
needs is an index with a .gitattributes file...plus a little bit of
setup.  Create such an index, along with the deallocation and
attr_direction handling.

A subsequent commit will add a function to finish the initialization
of this index.

Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2021-03-20 00:03:45 +00:00 committed by Junio C Hamano
parent 72b3091040
commit ea305a68fd
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
merge-ort.c
View File

@ -18,6 +18,7 @@
#include "merge-ort.h"
#include "alloc.h"
#include "attr.h"
#include "blob.h"
#include "cache-tree.h"
#include "commit.h"
@ -220,6 +221,16 @@ struct merge_options_internal {
*/
struct rename_info renames;
/*
* attr_index: hacky minimal index used for renormalization
*
* renormalization code _requires_ an index, though it only needs to
* find a .gitattributes file within the index. So, when
* renormalization is important, we create a special index with just
* that one file.
*/
struct index_state attr_index;
/*
* current_dir_name, toplevel_dir: temporary vars
*
@ -399,6 +410,9 @@ static void clear_or_reinit_internal_opts(struct merge_options_internal *opti,
string_list_clear(&opti->paths_to_free, 0);
opti->paths_to_free.strdup_strings = 0;
if (opti->attr_index.cache_nr)
discard_index(&opti->attr_index);
/* Free memory used by various renames maps */
for (i = MERGE_SIDE1; i <= MERGE_SIDE2; ++i) {
strintmap_func(&renames->dirs_removed[i]);
@ -3407,6 +3421,8 @@ void merge_finalize(struct merge_options *opt,
{
struct merge_options_internal *opti = result->priv;
if (opt->renormalize)
git_attr_set_direction(GIT_ATTR_CHECKIN);
assert(opt->priv == NULL);
clear_or_reinit_internal_opts(opti, 0);
@ -3482,6 +3498,10 @@ static void merge_start(struct merge_options *opt, struct merge_result *result)
/* Default to histogram diff. Actually, just hardcode it...for now. */
opt->xdl_opts = DIFF_WITH_ALG(opt, HISTOGRAM_DIFF);
/* Handle attr direction stuff for renormalization */
if (opt->renormalize)
git_attr_set_direction(GIT_ATTR_CHECKOUT);
/* Initialization of opt->priv, our internal merge data */
trace2_region_enter("merge", "allocate/init", opt->repo);
if (opt->priv) {