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racy-git: do a single index->workdir diff

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When examining paths that are racily clean, do a single index->workdir
diff over the entirety of the racily clean files, instead of a diff
per file.
This commit is contained in:
Edward Thomson 2015-11-06 17:15:35 -05:00 committed by Edward Thomson
parent 32b9e647c5
commit cb0ff012d3
1 changed files with 27 additions and 14 deletions
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41
src/index.c
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@ -18,6 +18,7 @@
#include "ignore.h"
#include "blob.h"
#include "idxmap.h"
#include "diff.h"
#include "git2/odb.h"
#include "git2/oid.h"
@ -752,7 +753,9 @@ static int truncate_racily_clean(git_index *index)
int error;
git_index_entry *entry;
git_diff_options diff_opts = GIT_DIFF_OPTIONS_INIT;
git_diff *diff;
git_diff *diff = NULL;
git_vector paths = GIT_VECTOR_INIT;
git_diff_delta *delta;
/* Nothing to do if there's no repo to talk about */
if (!INDEX_OWNER(index))
@ -765,21 +768,31 @@ static int truncate_racily_clean(git_index *index)
diff_opts.flags |= GIT_DIFF_INCLUDE_TYPECHANGE | GIT_DIFF_IGNORE_SUBMODULES | GIT_DIFF_DISABLE_PATHSPEC_MATCH;
git_vector_foreach(&index->entries, i, entry) {
if (!is_racy_timestamp(&index->stamp.mtime, entry))
continue;
/* TODO: use the (non-fnmatching) filelist iterator */
diff_opts.pathspec.count = 1;
diff_opts.pathspec.strings = (char **) &entry->path;
if ((error = git_diff_index_to_workdir(&diff, INDEX_OWNER(index), index, &diff_opts)) < 0)
return error;
if (git_diff_num_deltas(diff) > 0)
entry->file_size = 0;
git_diff_free(diff);
git_vector_insert(&paths, (char *)entry->path);
}
if (paths.length == 0)
goto done;
diff_opts.pathspec.count = paths.length;
diff_opts.pathspec.strings = (char **)paths.contents;
if ((error = git_diff_index_to_workdir(&diff, INDEX_OWNER(index), index, &diff_opts)) < 0)
return error;
git_vector_foreach(&diff->deltas, i, delta) {
entry = (git_index_entry *)git_index_get_bypath(index, delta->old_file.path, 0);
/* Ensure that we have a stage 0 for this file (ie, it's not a
* conflict), otherwise smudging it is quite pointless.
*/
if (entry)
entry->file_size = 0;
}
done:
git_diff_free(diff);
git_vector_free(&paths);
return 0;
}