[PATCHv4 16/27] sha1_file: add repository argument to sha1_file_name

[Stefan Beller <sbeller@google.com>]

Add a repository argument to allow sha1_file_name callers to be more
specific about which repository to handle. This is a small mechanical
change; it doesn't change the implementation to handle repositories
other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

While at it, move the declaration to object-store.h, where it should
be easier to find.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
 cache.h        |  6 ------
 http-walker.c  |  3 ++-
 http.c         |  5 ++---
 object-store.h |  7 +++++++
 sha1_file.c    | 10 +++++-----
 5 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/cache.h b/cache.h
index 63889acb591..94d85a5c692 100644
--- a/cache.h
+++ b/cache.h
@@ -936,12 +936,6 @@ extern void check_repository_format(void);
 #define DATA_CHANGED    0x0020
 #define TYPE_CHANGED    0x0040
 
-/*
- * Put in `buf` the name of the file in the local object database that
- * would be used to store a loose object with the specified sha1.
- */
-extern void sha1_file_name(struct strbuf *buf, const unsigned char *sha1);
-
 /*
  * Return an abbreviated sha1 unique within this repository's object database.
  * The result will be at least `len` characters long, and will be NUL
diff --git a/http-walker.c b/http-walker.c
index 07c2b1af826..2c33969123a 100644
--- a/http-walker.c
+++ b/http-walker.c
@@ -1,4 +1,5 @@
 #include "cache.h"
+#include "repository.h"
 #include "commit.h"
 #include "walker.h"
 #include "http.h"
@@ -545,7 +546,7 @@ static int fetch_object(struct walker *walker, unsigned char *sha1)
 		ret = error("File %s has bad hash", hex);
 	} else if (req->rename < 0) {
 		struct strbuf buf = STRBUF_INIT;
-		sha1_file_name(&buf, req->sha1);
+		sha1_file_name(the_repository, &buf, req->sha1);
 		ret = error("unable to write sha1 filename %s", buf.buf);
 		strbuf_release(&buf);
 	}
diff --git a/http.c b/http.c
index 31755023a4f..df9dbea59c5 100644
--- a/http.c
+++ b/http.c
@@ -2246,7 +2246,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
 	hashcpy(freq->sha1, sha1);
 	freq->localfile = -1;
 
-	sha1_file_name(&filename, sha1);
+	sha1_file_name(the_repository, &filename, sha1);
 	snprintf(freq->tmpfile, sizeof(freq->tmpfile),
 		 "%s.temp", filename.buf);
 
@@ -2395,8 +2395,7 @@ int finish_http_object_request(struct http_object_request *freq)
 		unlink_or_warn(freq->tmpfile);
 		return -1;
 	}
-
-	sha1_file_name(&filename, freq->sha1);
+	sha1_file_name(the_repository, &filename, freq->sha1);
 	freq->rename = finalize_object_file(freq->tmpfile, filename.buf);
 	strbuf_release(&filename);
 
diff --git a/object-store.h b/object-store.h
index 24b9a750aef..c0d1292cfc2 100644
--- a/object-store.h
+++ b/object-store.h
@@ -113,4 +113,11 @@ struct raw_object_store {
 
 void raw_object_store_clear(struct raw_object_store *o);
 
+/*
+ * Put in `buf` the name of the file in the local object database that
+ * would be used to store a loose object with the specified sha1.
+ */
+#define sha1_file_name(r, b, s) sha1_file_name_##r(b, s)
+void sha1_file_name_the_repository(struct strbuf *buf, const unsigned char *sha1);
+
 #endif /* OBJECT_STORE_H */
diff --git a/sha1_file.c b/sha1_file.c
index 03b9bbe8bb7..8ef2f856035 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -321,7 +321,7 @@ static void fill_sha1_path(struct strbuf *buf, const unsigned char *sha1)
 	}
 }
 
-void sha1_file_name(struct strbuf *buf, const unsigned char *sha1)
+void sha1_file_name_the_repository(struct strbuf *buf, const unsigned char *sha1)
 {
 	strbuf_addstr(buf, get_object_directory());
 	strbuf_addch(buf, '/');
@@ -715,7 +715,7 @@ static int check_and_freshen_local(const unsigned char *sha1, int freshen)
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 
 	return check_and_freshen_file(buf.buf, freshen);
 }
@@ -876,7 +876,7 @@ static int stat_sha1_file(const unsigned char *sha1, struct stat *st,
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 	*path = buf.buf;
 
 	if (!lstat(*path, st))
@@ -905,7 +905,7 @@ static int open_sha1_file(const unsigned char *sha1, const char **path)
 	static struct strbuf buf = STRBUF_INIT;
 
 	strbuf_reset(&buf);
-	sha1_file_name(&buf, sha1);
+	sha1_file_name(the_repository, &buf, sha1);
 	*path = buf.buf;
 
 	fd = git_open(*path);
@@ -1591,7 +1591,7 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
 	static struct strbuf filename = STRBUF_INIT;
 
 	strbuf_reset(&filename);
-	sha1_file_name(&filename, oid->hash);
+	sha1_file_name(the_repository, &filename, oid->hash);
 
 	fd = create_tmpfile(&tmp_file, filename.buf);
 	if (fd < 0) {
-- 
2.16.1.291.g4437f3f132-goog