git/list[1] front-page[2] threads[3] people[4] search[5] about
 

[PATCH] clean: remove unnecessary variable

From
Matheus Tavares <matheus.bernardino@usp.br>
Date
May 6, 2021, 19:33 UTC
Message-ID
<4f88ac58e46782c7cf335e13fabd14c8b4438267.1620329445.git.matheus.bernardino@usp.br>

The variable `matches` used to hold the return of a `dir_path_match()` call that was removed in 95c11ecc73 ("Fix error-prone fill_directory() API; make it only return matches", 2020-04-01). Now `matches` will always hold 0, which is the value it's initialized with; and the condition `matches != MATCHED_EXACTLY` will always evaluate to true. So let's remove this unnecessary variable.

Interestingly, it seems that `matches != MATCHED_EXACTLY` was already unnecessary before 95c11ecc73. That's because `remove_directories` is always set to 1 when we have pathspecs; So, in the condition `!remove_directories && matches != MATCHED_EXACTLY`, we would either:

- have pathspecs (or have been given `-d`) and ignore `matches` because
  `remove_directories` is 1; or
- not have pathspecs (nor `-d`) and end up just checking that
  `0 != MATCHED_EXACTLY`, as `matches` would never get reassigned
  after its zero initialization (because there is no pathspec to match).
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
---
 builtin/clean.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/builtin/clean.c b/builtin/clean.c
index 995053b791..f6d7e8119c 100644
--- a/builtin/clean.c
+++ b/builtin/clean.c
@@ -1003,7 +1003,6 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 
 	for (i = 0; i < dir.nr; i++) {
 		struct dir_entry *ent = dir.entries[i];
-		int matches = 0;
 		struct stat st;
 		const char *rel;
 
@@ -1013,8 +1012,7 @@ int cmd_clean(int argc, const char **argv, const char *prefix)
 		if (lstat(ent->name, &st))
 			die_errno("Cannot lstat '%s'", ent->name);
 
-		if (S_ISDIR(st.st_mode) && !remove_directories &&
-		    matches != MATCHED_EXACTLY)
+		if (S_ISDIR(st.st_mode) && !remove_directories)
 			continue;
 
 		rel = relative_path(ent->name, prefix, &buf);
-- 
2.30.1
Next: Jeff King
Message 1 of 4 in “clean: remove unnecessary variable”
  1. clean: remove unnecessary variableMatheus Tavares, May 6, 2021
  2. Jeff KingMay 6, 2021
  3. Matheus Tavares BernardinoMay 6, 2021
  4. Elijah NewrenMay 6, 2021

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.