csum-file: rename sha1file to hashfile

Rename struct sha1file to struct hashfile, along with all of its related
functions.

The transformation in this commit was made by global search-and-replace.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/csum-file.h b/csum-file.h
index 7530927..ceb3e57 100644
--- a/csum-file.h
+++ b/csum-file.h
@@ -4,7 +4,7 @@
 struct progress;
 
 /* A SHA1-protected file */
-struct sha1file {
+struct hashfile {
 	int fd;
 	int check_fd;
 	unsigned int offset;
@@ -18,36 +18,36 @@ struct sha1file {
 };
 
 /* Checkpoint */
-struct sha1file_checkpoint {
+struct hashfile_checkpoint {
 	off_t offset;
 	git_SHA_CTX ctx;
 };
 
-extern void sha1file_checkpoint(struct sha1file *, struct sha1file_checkpoint *);
-extern int sha1file_truncate(struct sha1file *, struct sha1file_checkpoint *);
+extern void hashfile_checkpoint(struct hashfile *, struct hashfile_checkpoint *);
+extern int hashfile_truncate(struct hashfile *, struct hashfile_checkpoint *);
 
-/* sha1close flags */
+/* hashclose flags */
 #define CSUM_CLOSE	1
 #define CSUM_FSYNC	2
 
-extern struct sha1file *sha1fd(int fd, const char *name);
-extern struct sha1file *sha1fd_check(const char *name);
-extern struct sha1file *sha1fd_throughput(int fd, const char *name, struct progress *tp);
-extern int sha1close(struct sha1file *, unsigned char *, unsigned int);
-extern void sha1write(struct sha1file *, const void *, unsigned int);
-extern void sha1flush(struct sha1file *f);
-extern void crc32_begin(struct sha1file *);
-extern uint32_t crc32_end(struct sha1file *);
+extern struct hashfile *hashfd(int fd, const char *name);
+extern struct hashfile *hashfd_check(const char *name);
+extern struct hashfile *hashfd_throughput(int fd, const char *name, struct progress *tp);
+extern int hashclose(struct hashfile *, unsigned char *, unsigned int);
+extern void hashwrite(struct hashfile *, const void *, unsigned int);
+extern void hashflush(struct hashfile *f);
+extern void crc32_begin(struct hashfile *);
+extern uint32_t crc32_end(struct hashfile *);
 
-static inline void sha1write_u8(struct sha1file *f, uint8_t data)
+static inline void hashwrite_u8(struct hashfile *f, uint8_t data)
 {
-	sha1write(f, &data, sizeof(data));
+	hashwrite(f, &data, sizeof(data));
 }
 
-static inline void sha1write_be32(struct sha1file *f, uint32_t data)
+static inline void hashwrite_be32(struct hashfile *f, uint32_t data)
 {
 	data = htonl(data);
-	sha1write(f, &data, sizeof(data));
+	hashwrite(f, &data, sizeof(data));
 }
 
 #endif