convert: convert convert_to_git to take an index

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

apply.c

@@ -2267,7 +2267,7 @@ static int read_old_data(struct stat *st, const char *path, struct strbuf *buf)
 	case S_IFREG:
 		if (strbuf_read_file(buf, path, st->st_size) != st->st_size)
 			return error(_("unable to open or read %s"), path);
-		convert_to_git(path, buf->buf, buf->len, buf, 0);
+		convert_to_git(&the_index, path, buf->buf, buf->len, buf, 0);
 		return 0;
 	default:
 		return -1;

blame.c

@@ -229,7 +229,7 @@ static struct commit *fake_working_tree_commit(struct diff_options *opt,
 		if (strbuf_read(&buf, 0, 0) < 0)
 			die_errno("failed to read from stdin");
 	}
-	convert_to_git(path, buf.buf, buf.len, &buf, 0);
+	convert_to_git(&the_index, path, buf.buf, buf.len, &buf, 0);
 	origin->file.ptr = buf.buf;
 	origin->file.size = buf.len;
 	pretend_sha1_file(buf.buf, buf.len, OBJ_BLOB, origin->blob_oid.hash);

combine-diff.c

@@ -1053,7 +1053,7 @@ static void show_patch_diff(struct combine_diff_path *elem, int num_parent,
 			if (is_file) {
 				struct strbuf buf = STRBUF_INIT;
 
-				if (convert_to_git(elem->path, result, len, &buf, safe_crlf)) {
+				if (convert_to_git(&the_index, elem->path, result, len, &buf, safe_crlf)) {
 					free(result);
 					result = strbuf_detach(&buf, &len);
 					result_size = len;

convert.c

@@ -1084,7 +1084,8 @@ const char *get_convert_attr_ascii(const char *path)
 	return "";
 }
 
-int convert_to_git(const char *path, const char *src, size_t len,
+int convert_to_git(const struct index_state *istate,
+		   const char *path, const char *src, size_t len,
                    struct strbuf *dst, enum safe_crlf checksafe)
 {
 	int ret = 0;
@@ -1100,7 +1101,7 @@ int convert_to_git(const char *path, const char *src, size_t len,
 		src = dst->buf;
 		len = dst->len;
 	}
-	ret |= crlf_to_git(&the_index, path, src, len, dst, ca.crlf_action, checksafe);
+	ret |= crlf_to_git(istate, path, src, len, dst, ca.crlf_action, checksafe);
 	if (ret && dst) {
 		src = dst->buf;
 		len = dst->len;
@@ -1171,7 +1172,7 @@ int renormalize_buffer(const char *path, const char *src, size_t len, struct str
 		src = dst->buf;
 		len = dst->len;
 	}
-	return ret | convert_to_git(path, src, len, dst, SAFE_CRLF_RENORMALIZE);
+	return ret | convert_to_git(&the_index, path, src, len, dst, SAFE_CRLF_RENORMALIZE);
 }
 
 /*****************************************************************

convert.h

@@ -41,15 +41,17 @@ extern const char *get_wt_convert_stats_ascii(const char *path);
 extern const char *get_convert_attr_ascii(const char *path);
 
 /* returns 1 if *dst was used */
-extern int convert_to_git(const char *path, const char *src, size_t len,
+extern int convert_to_git(const struct index_state *istate,
+			  const char *path, const char *src, size_t len,
 			  struct strbuf *dst, enum safe_crlf checksafe);
 extern int convert_to_working_tree(const char *path, const char *src,
 				   size_t len, struct strbuf *dst);
 extern int renormalize_buffer(const char *path, const char *src, size_t len,
 			      struct strbuf *dst);
-static inline int would_convert_to_git(const char *path)
+static inline int would_convert_to_git(const struct index_state *istate,
+				       const char *path)
 {
-	return convert_to_git(path, NULL, 0, NULL, 0);
+	return convert_to_git(istate, path, NULL, 0, NULL, 0);
 }
 /* Precondition: would_convert_to_git_filter_fd(path) == true */
 extern void convert_to_git_filter_fd(const struct index_state *istate,

diff.c

@@ -2755,7 +2755,7 @@ static int reuse_worktree_file(const char *name, const unsigned char *sha1, int
 	 * Similarly, if we'd have to convert the file contents anyway, that
 	 * makes the optimization not worthwhile.
 	 */
-	if (!want_file && would_convert_to_git(name))
+	if (!want_file && would_convert_to_git(&the_index, name))
 		return 0;
 
 	len = strlen(name);
@@ -2877,7 +2877,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
 		 * point if the path requires us to run the content
 		 * conversion.
 		 */
-		if (size_only && !would_convert_to_git(s->path))
+		if (size_only && !would_convert_to_git(&the_index, s->path))
 			return 0;
 
 		/*
@@ -2904,7 +2904,7 @@ int diff_populate_filespec(struct diff_filespec *s, unsigned int flags)
 		/*
 		 * Convert from working tree format to canonical git format
 		 */
-		if (convert_to_git(s->path, s->data, s->size, &buf, crlf_warn)) {
+		if (convert_to_git(&the_index, s->path, s->data, s->size, &buf, crlf_warn)) {
 			size_t size = 0;
 			munmap(s->data, s->size);
 			s->should_munmap = 0;

dir.c

@@ -795,7 +795,7 @@ static int add_excludes(const char *fname, const char *base, int baselen,
 				 (pos = index_name_pos(istate, fname, strlen(fname))) >= 0 &&
 				 !ce_stage(istate->cache[pos]) &&
 				 ce_uptodate(istate->cache[pos]) &&
-				 !would_convert_to_git(fname))
+				 !would_convert_to_git(istate, fname))
 				hashcpy(sha1_stat->sha1,
 					istate->cache[pos]->oid.hash);
 			else

sha1_file.c

@@ -3546,7 +3546,7 @@ static int index_mem(unsigned char *sha1, void *buf, size_t size,
 	 */
 	if ((type == OBJ_BLOB) && path) {
 		struct strbuf nbuf = STRBUF_INIT;
-		if (convert_to_git(path, buf, size, &nbuf,
+		if (convert_to_git(&the_index, path, buf, size, &nbuf,
 				   write_object ? safe_crlf : SAFE_CRLF_FALSE)) {
 			buf = strbuf_detach(&nbuf, &size);
 			re_allocated = 1;
@@ -3668,7 +3668,7 @@ int index_fd(unsigned char *sha1, int fd, struct stat *st,
 	else if (!S_ISREG(st->st_mode))
 		ret = index_pipe(sha1, fd, type, path, flags);
 	else if (st->st_size <= big_file_threshold || type != OBJ_BLOB ||
-		 (path && would_convert_to_git(path)))
+		 (path && would_convert_to_git(&the_index, path)))
 		ret = index_core(sha1, fd, xsize_t(st->st_size), type, path,
 				 flags);
 	else