packfile: drop sha1_pack_name()

The sha1_pack_name() function has a few ugly bits:

  - it writes into a static strbuf (and not even a ring buffer of them),
    which can lead to subtle invalidation problems

  - it uses the term "sha1", but it's really using the_hash_algo, which
    could be sha256

There's only one caller of it left. And in fact that caller is better
off using the underlying odb_pack_name() function itself, since it's
just copying the result into its own strbuf anyway.

Converting that caller lets us get rid of this now-obselete function.

Signed-off-by: Jeff King <[email protected]>
Signed-off-by: Taylor Blau <[email protected]>

Author: peff

http.c

@@ -2579,7 +2579,8 @@ struct http_pack_request *new_direct_http_pack_request(
 
 	preq->url = url;
 
-	strbuf_addf(&preq->tmpfile, "%s.temp", sha1_pack_name(packed_git_hash));
+	odb_pack_name(&preq->tmpfile, packed_git_hash, "pack");
+	strbuf_addstr(&preq->tmpfile, ".temp");
 	preq->packfile = fopen(preq->tmpfile.buf, "a");
 	if (!preq->packfile) {
 		error("Unable to open local file %s for pack",

packfile.c

@@ -35,12 +35,6 @@ char *odb_pack_name(struct strbuf *buf,
 	return buf->buf;
 }
 
-char *sha1_pack_name(const unsigned char *sha1)
-{
-	static struct strbuf buf = STRBUF_INIT;
-	return odb_pack_name(&buf, sha1, "pack");
-}
-
 char *sha1_pack_index_name(const unsigned char *sha1)
 {
 	static struct strbuf buf = STRBUF_INIT;

packfile.h

@@ -31,13 +31,6 @@ struct pack_entry {
  */
 char *odb_pack_name(struct strbuf *buf, const unsigned char *sha1, const char *ext);
 
-/*
- * Return the name of the (local) packfile with the specified sha1 in
- * its name.  The return value is a pointer to memory that is
- * overwritten each time this function is called.
- */
-char *sha1_pack_name(const unsigned char *sha1);
-
 /*
  * Return the name of the (local) pack index file with the specified
  * sha1 in its name.  The return value is a pointer to memory that is