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merge-ort: add a new toplevel_dir field

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Due to the string-equality-iff-pointer-equality requirements placed on
merged_info.directory_name, apply_directory_rename_modifications() will
need to have access to the exact toplevel directory name string pointer
and can't just use a new empty string.  Store it in a field that we can
use.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren 2021-01-19 19:53:50 +00:00 committed by Junio C Hamano
parent bea433655a
commit 05b85c6eeb
1 changed files with 9 additions and 6 deletions
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15
merge-ort.c
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@ -168,12 +168,15 @@ struct merge_options_internal {
struct rename_info renames;
/*
* current_dir_name: temporary var used in collect_merge_info_callback()
* current_dir_name, toplevel_dir: temporary vars
*
* Used to set merged_info.directory_name; see documentation for that
* variable and the requirements placed on that field.
* These are used in collect_merge_info_callback(), and will set the
* various merged_info.directory_name for the various paths we get;
* see documentation for that variable and the requirements placed on
* that field.
*/
const char *current_dir_name;
const char *toplevel_dir;
/* call_depth: recursion level counter for merging merge bases */
int call_depth;
@ -682,10 +685,10 @@ static int collect_merge_info(struct merge_options *opt,
int ret;
struct tree_desc t[3];
struct traverse_info info;
const char *toplevel_dir_placeholder = "";
opt->priv->current_dir_name = toplevel_dir_placeholder;
setup_traverse_info(&info, toplevel_dir_placeholder);
opt->priv->toplevel_dir = "";
opt->priv->current_dir_name = opt->priv->toplevel_dir;
setup_traverse_info(&info, opt->priv->toplevel_dir);
info.fn = collect_merge_info_callback;
info.data = opt;
info.show_all_errors = 1;