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apply: handle type-changing patch correctly.
A type-change diff is always split into a patch to delete old, immediately followed by a patch to create new. check_patch() routine noticed that the path to be created already exists in the working tree and/or in the index when looking at the creation patch and mistakenly thought it to be an error. Signed-off-by: Junio C Hamano <junkio@cox.net>
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@ -1664,13 +1664,14 @@ static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *
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return 0;
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}
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static int check_patch(struct patch *patch)
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static int check_patch(struct patch *patch, struct patch *prev_patch)
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{
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struct stat st;
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const char *old_name = patch->old_name;
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const char *new_name = patch->new_name;
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const char *name = old_name ? old_name : new_name;
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struct cache_entry *ce = NULL;
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int ok_if_exists;
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if (old_name) {
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int changed = 0;
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@ -1728,13 +1729,28 @@ static int check_patch(struct patch *patch)
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old_name, st_mode, patch->old_mode);
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}
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if (new_name && prev_patch && prev_patch->is_delete &&
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!strcmp(prev_patch->old_name, new_name))
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/* A type-change diff is always split into a patch to
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* delete old, immediately followed by a patch to
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* create new (see diff.c::run_diff()); in such a case
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* it is Ok that the entry to be deleted by the
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* previous patch is still in the working tree and in
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* the index.
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*/
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ok_if_exists = 1;
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else
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ok_if_exists = 0;
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if (new_name && (patch->is_new | patch->is_rename | patch->is_copy)) {
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if (check_index && cache_name_pos(new_name, strlen(new_name)) >= 0)
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if (check_index &&
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cache_name_pos(new_name, strlen(new_name)) >= 0 &&
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!ok_if_exists)
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return error("%s: already exists in index", new_name);
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if (!cached) {
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struct stat nst;
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if (!lstat(new_name, &nst)) {
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if (S_ISDIR(nst.st_mode))
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if (S_ISDIR(nst.st_mode) || ok_if_exists)
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; /* ok */
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else
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return error("%s: already exists in working directory", new_name);
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@ -1767,10 +1783,13 @@ static int check_patch(struct patch *patch)
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static int check_patch_list(struct patch *patch)
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{
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struct patch *prev_patch = NULL;
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int error = 0;
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for (;patch ; patch = patch->next)
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error |= check_patch(patch);
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for (prev_patch = NULL; patch ; patch = patch->next) {
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error |= check_patch(patch, prev_patch);
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prev_patch = patch;
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}
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return error;
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}
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