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authorLibravatar Elijah Newren <newren@gmail.com>2021-03-20 00:03:45 +0000
committerLibravatar Junio C Hamano <gitster@pobox.com>2021-03-20 12:35:40 -0700
commitea305a68fd7427f84f90709e598624341f5627c8 (patch)
treebfe2a9fe50a6cb4e4868a9c679642d1a3c7c3a34 /merge-ort.c
parentmerge-ort: use STABLE_QSORT instead of QSORT where required (diff)
downloadtgif-ea305a68fd7427f84f90709e598624341f5627c8.tar.xz
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>
Diffstat (limited to 'merge-ort.c')
-rw-r--r--merge-ort.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/merge-ort.c b/merge-ort.c
index 34a91c4357..3c606fa7e4 100644
--- a/merge-ort.c
+++ b/merge-ort.c
@@ -18,6 +18,7 @@
#include "merge-ort.h"
#include "alloc.h"
+#include "attr.h"
#include "blob.h"
#include "cache-tree.h"
#include "commit.h"
@@ -221,6 +222,16 @@ 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
*
* These are used in collect_merge_info_callback(), and will set the
@@ -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) {