зеркало из https://github.com/microsoft/git.git
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>
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20
merge-ort.c
20
merge-ort.c
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@ -18,6 +18,7 @@
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#include "merge-ort.h"
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#include "alloc.h"
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#include "attr.h"
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#include "blob.h"
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#include "cache-tree.h"
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#include "commit.h"
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@ -220,6 +221,16 @@ struct merge_options_internal {
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*/
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struct rename_info renames;
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/*
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* attr_index: hacky minimal index used for renormalization
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*
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* renormalization code _requires_ an index, though it only needs to
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* find a .gitattributes file within the index. So, when
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* renormalization is important, we create a special index with just
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* that one file.
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*/
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struct index_state attr_index;
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/*
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* current_dir_name, toplevel_dir: temporary vars
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*
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@ -399,6 +410,9 @@ static void clear_or_reinit_internal_opts(struct merge_options_internal *opti,
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string_list_clear(&opti->paths_to_free, 0);
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opti->paths_to_free.strdup_strings = 0;
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if (opti->attr_index.cache_nr)
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discard_index(&opti->attr_index);
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/* Free memory used by various renames maps */
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for (i = MERGE_SIDE1; i <= MERGE_SIDE2; ++i) {
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strintmap_func(&renames->dirs_removed[i]);
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@ -3407,6 +3421,8 @@ void merge_finalize(struct merge_options *opt,
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{
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struct merge_options_internal *opti = result->priv;
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if (opt->renormalize)
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git_attr_set_direction(GIT_ATTR_CHECKIN);
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assert(opt->priv == NULL);
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clear_or_reinit_internal_opts(opti, 0);
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@ -3482,6 +3498,10 @@ static void merge_start(struct merge_options *opt, struct merge_result *result)
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/* Default to histogram diff. Actually, just hardcode it...for now. */
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opt->xdl_opts = DIFF_WITH_ALG(opt, HISTOGRAM_DIFF);
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/* Handle attr direction stuff for renormalization */
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if (opt->renormalize)
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git_attr_set_direction(GIT_ATTR_CHECKOUT);
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/* Initialization of opt->priv, our internal merge data */
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trace2_region_enter("merge", "allocate/init", opt->repo);
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if (opt->priv) {
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