Merge branch 'jc/unused-symbols'

Mark file-local symbols as "static", and drop functions that nobody
uses.

* jc/unused-symbols:
  shallow.c: make check_shallow_file_for_update() static
  remote.c: make clear_cas_option() static
  urlmatch.c: make match_urls() static
  revision.c: make save_parents() and free_saved_parents() static
  line-log.c: make line_log_data_init() static
  pack-bitmap.c: make pack_bitmap_filename() static
  prompt.c: remove git_getpass() nobody uses
  http.c: make finish_active_slot() and handle_curl_result() static

commit.h

@@ -254,7 +254,6 @@ extern int for_each_commit_graft(each_commit_graft_fn, void *);
 extern int is_repository_shallow(void);
 extern struct commit_list *get_shallow_commits(struct object_array *heads,
 		int depth, int shallow_flag, int not_shallow_flag);
-extern void check_shallow_file_for_update(void);
 extern void set_alternate_shallow_file(const char *path, int override);
 extern int write_shallow_commits(struct strbuf *out, int use_pack_protocol,
 				 const struct sha1_array *extra);

http.c

@@ -117,6 +117,37 @@ size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
 	return eltsize * nmemb;
 }
 
+static void closedown_active_slot(struct active_request_slot *slot)
+{
+	active_requests--;
+	slot->in_use = 0;
+}
+
+static void finish_active_slot(struct active_request_slot *slot)
+{
+	closedown_active_slot(slot);
+	curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
+
+	if (slot->finished != NULL)
+		(*slot->finished) = 1;
+
+	/* Store slot results so they can be read after the slot is reused */
+	if (slot->results != NULL) {
+		slot->results->curl_result = slot->curl_result;
+		slot->results->http_code = slot->http_code;
+#if LIBCURL_VERSION_NUM >= 0x070a08
+		curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
+				  &slot->results->auth_avail);
+#else
+		slot->results->auth_avail = 0;
+#endif
+	}
+
+	/* Run callback if appropriate */
+	if (slot->callback_func != NULL)
+		slot->callback_func(slot->callback_data);
+}
+
 #ifdef USE_CURL_MULTI
 static void process_curl_messages(void)
 {
@@ -736,12 +767,6 @@ void run_active_slot(struct active_request_slot *slot)
 #endif
 }
 
-static void closedown_active_slot(struct active_request_slot *slot)
-{
-	active_requests--;
-	slot->in_use = 0;
-}
-
 static void release_active_slot(struct active_request_slot *slot)
 {
 	closedown_active_slot(slot);
@@ -758,31 +783,6 @@ static void release_active_slot(struct active_request_slot *slot)
 #endif
 }
 
-void finish_active_slot(struct active_request_slot *slot)
-{
-	closedown_active_slot(slot);
-	curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE, &slot->http_code);
-
-	if (slot->finished != NULL)
-		(*slot->finished) = 1;
-
-	/* Store slot results so they can be read after the slot is reused */
-	if (slot->results != NULL) {
-		slot->results->curl_result = slot->curl_result;
-		slot->results->http_code = slot->http_code;
-#if LIBCURL_VERSION_NUM >= 0x070a08
-		curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
-				  &slot->results->auth_avail);
-#else
-		slot->results->auth_avail = 0;
-#endif
-	}
-
-	/* Run callback if appropriate */
-	if (slot->callback_func != NULL)
-		slot->callback_func(slot->callback_data);
-}
-
 void finish_all_active_slots(void)
 {
 	struct active_request_slot *slot = active_queue_head;
@@ -845,7 +845,7 @@ char *get_remote_object_url(const char *url, const char *hex,
 	return strbuf_detach(&buf, NULL);
 }
 
-int handle_curl_result(struct slot_results *results)
+static int handle_curl_result(struct slot_results *results)
 {
 	/*
 	 * If we see a failing http code with CURLE_OK, we have turned off

http.h

@@ -85,9 +85,7 @@ extern curlioerr ioctl_buffer(CURL *handle, int cmd, void *clientp);
 extern struct active_request_slot *get_active_slot(void);
 extern int start_active_slot(struct active_request_slot *slot);
 extern void run_active_slot(struct active_request_slot *slot);
-extern void finish_active_slot(struct active_request_slot *slot);
 extern void finish_all_active_slots(void);
-extern int handle_curl_result(struct slot_results *results);
 
 /*
  * This will run one slot to completion in a blocking manner, similar to how

line-log.c

@@ -237,7 +237,7 @@ static void diff_ranges_release(struct diff_ranges *diff)
 	range_set_release(&diff->target);
 }
 
-void line_log_data_init(struct line_log_data *r)
+static void line_log_data_init(struct line_log_data *r)
 {
 	memset(r, 0, sizeof(struct line_log_data));
 	range_set_init(&r->ranges, 0);

line-log.h

@@ -54,8 +54,6 @@ struct line_log_data {
 	struct diff_ranges diff;
 };
 
-extern void line_log_data_init(struct line_log_data *r);
-
 extern void line_log_init(struct rev_info *rev, const char *prefix, struct string_list *args);
 
 extern int line_log_filter(struct rev_info *rev);

pack-bitmap.c

@@ -252,6 +252,20 @@ static int load_bitmap_entries_v1(struct bitmap_index *index)
 	return 0;
 }
 
+static char *pack_bitmap_filename(struct packed_git *p)
+{
+	char *idx_name;
+	int len;
+
+	len = strlen(p->pack_name) - strlen(".pack");
+	idx_name = xmalloc(len + strlen(".bitmap") + 1);
+
+	memcpy(idx_name, p->pack_name, len);
+	memcpy(idx_name + len, ".bitmap", strlen(".bitmap") + 1);
+
+	return idx_name;
+}
+
 static int open_pack_bitmap_1(struct packed_git *packfile)
 {
 	int fd;
@@ -322,20 +336,6 @@ static int load_pack_bitmap(void)
 	return -1;
 }
 
-char *pack_bitmap_filename(struct packed_git *p)
-{
-	char *idx_name;
-	int len;
-
-	len = strlen(p->pack_name) - strlen(".pack");
-	idx_name = xmalloc(len + strlen(".bitmap") + 1);
-
-	memcpy(idx_name, p->pack_name, len);
-	memcpy(idx_name + len, ".bitmap", strlen(".bitmap") + 1);
-
-	return idx_name;
-}
-
 static int open_pack_bitmap(void)
 {
 	struct packed_git *p;

pack-bitmap.h

@@ -38,7 +38,6 @@ int prepare_bitmap_git(void);
 void count_bitmap_commit_list(uint32_t *commits, uint32_t *trees, uint32_t *blobs, uint32_t *tags);
 void traverse_bitmap_commit_list(show_reachable_fn show_reachable);
 void test_bitmap_walk(struct rev_info *revs);
-char *pack_bitmap_filename(struct packed_git *p);
 int prepare_bitmap_walk(struct rev_info *revs);
 int reuse_partial_packfile_from_bitmap(struct packed_git **packfile, uint32_t *entries, off_t *up_to);
 int rebuild_existing_bitmaps(struct packing_data *mapping, khash_sha1 *reused_bitmaps, int show_progress);

prompt.c

@@ -73,8 +73,3 @@ char *git_prompt(const char *prompt, int flags)
 	}
 	return r;
 }
-
-char *git_getpass(const char *prompt)
-{
-	return git_prompt(prompt, PROMPT_ASKPASS);
-}

prompt.h

@@ -5,6 +5,5 @@
 #define PROMPT_ECHO    (1<<1)
 
 char *git_prompt(const char *prompt, int flags);
-char *git_getpass(const char *prompt);
 
 #endif /* PROMPT_H */

remote.c

@@ -2156,7 +2156,7 @@ struct ref *get_stale_heads(struct refspec *refs, int ref_count, struct ref *fet
 /*
  * Compare-and-swap
  */
-void clear_cas_option(struct push_cas_option *cas)
+static void clear_cas_option(struct push_cas_option *cas)
 {
 	int i;
 

remote.h

@@ -261,7 +261,6 @@ struct push_cas_option {
 
 extern int parseopt_push_cas_option(const struct option *, const char *arg, int unset);
 extern int parse_push_cas_option(struct push_cas_option *, const char *arg, int unset);
-extern void clear_cas_option(struct push_cas_option *);
 
 extern int is_empty_cas(const struct push_cas_option *);
 void apply_push_cas(struct push_cas_option *, struct remote *, struct ref *);

revision.c

@@ -2970,6 +2970,61 @@ enum commit_action get_commit_action(struct rev_info *revs, struct commit *commi
 	return commit_show;
 }
 
+define_commit_slab(saved_parents, struct commit_list *);
+
+#define EMPTY_PARENT_LIST ((struct commit_list *)-1)
+
+/*
+ * You may only call save_parents() once per commit (this is checked
+ * for non-root commits).
+ */
+static void save_parents(struct rev_info *revs, struct commit *commit)
+{
+	struct commit_list **pp;
+
+	if (!revs->saved_parents_slab) {
+		revs->saved_parents_slab = xmalloc(sizeof(struct saved_parents));
+		init_saved_parents(revs->saved_parents_slab);
+	}
+
+	pp = saved_parents_at(revs->saved_parents_slab, commit);
+
+	/*
+	 * When walking with reflogs, we may visit the same commit
+	 * several times: once for each appearance in the reflog.
+	 *
+	 * In this case, save_parents() will be called multiple times.
+	 * We want to keep only the first set of parents.  We need to
+	 * store a sentinel value for an empty (i.e., NULL) parent
+	 * list to distinguish it from a not-yet-saved list, however.
+	 */
+	if (*pp)
+		return;
+	if (commit->parents)
+		*pp = copy_commit_list(commit->parents);
+	else
+		*pp = EMPTY_PARENT_LIST;
+}
+
+static void free_saved_parents(struct rev_info *revs)
+{
+	if (revs->saved_parents_slab)
+		clear_saved_parents(revs->saved_parents_slab);
+}
+
+struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit)
+{
+	struct commit_list *parents;
+
+	if (!revs->saved_parents_slab)
+		return commit->parents;
+
+	parents = *saved_parents_at(revs->saved_parents_slab, commit);
+	if (parents == EMPTY_PARENT_LIST)
+		return NULL;
+	return parents;
+}
+
 enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit)
 {
 	enum commit_action action = get_commit_action(revs, commit);
@@ -3269,54 +3324,3 @@ void put_revision_mark(const struct rev_info *revs, const struct commit *commit)
 	fputs(mark, stdout);
 	putchar(' ');
 }
-
-define_commit_slab(saved_parents, struct commit_list *);
-
-#define EMPTY_PARENT_LIST ((struct commit_list *)-1)
-
-void save_parents(struct rev_info *revs, struct commit *commit)
-{
-	struct commit_list **pp;
-
-	if (!revs->saved_parents_slab) {
-		revs->saved_parents_slab = xmalloc(sizeof(struct saved_parents));
-		init_saved_parents(revs->saved_parents_slab);
-	}
-
-	pp = saved_parents_at(revs->saved_parents_slab, commit);
-
-	/*
-	 * When walking with reflogs, we may visit the same commit
-	 * several times: once for each appearance in the reflog.
-	 *
-	 * In this case, save_parents() will be called multiple times.
-	 * We want to keep only the first set of parents.  We need to
-	 * store a sentinel value for an empty (i.e., NULL) parent
-	 * list to distinguish it from a not-yet-saved list, however.
-	 */
-	if (*pp)
-		return;
-	if (commit->parents)
-		*pp = copy_commit_list(commit->parents);
-	else
-		*pp = EMPTY_PARENT_LIST;
-}
-
-struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit)
-{
-	struct commit_list *parents;
-
-	if (!revs->saved_parents_slab)
-		return commit->parents;
-
-	parents = *saved_parents_at(revs->saved_parents_slab, commit);
-	if (parents == EMPTY_PARENT_LIST)
-		return NULL;
-	return parents;
-}
-
-void free_saved_parents(struct rev_info *revs)
-{
-	if (revs->saved_parents_slab)
-		clear_saved_parents(revs->saved_parents_slab);
-}

revision.h

@@ -300,18 +300,14 @@ extern int rewrite_parents(struct rev_info *revs, struct commit *commit,
 	rewrite_parent_fn_t rewrite_parent);
 
 /*
- * Save a copy of the parent list, and return the saved copy.  This is
- * used by the log machinery to retrieve the original parents when
- * commit->parents has been modified by history simpification.
- *
- * You may only call save_parents() once per commit (this is checked
- * for non-root commits).
+ * The log machinery saves the original parent list so that
+ * get_saved_parents() can later tell what the real parents of the
+ * commits are, when commit->parents has been modified by history
+ * simpification.
  *
  * get_saved_parents() will transparently return commit->parents if
  * history simplification is off.
  */
-extern void save_parents(struct rev_info *revs, struct commit *commit);
 extern struct commit_list *get_saved_parents(struct rev_info *revs, const struct commit *commit);
-extern void free_saved_parents(struct rev_info *revs);
 
 #endif

shallow.c

@@ -137,7 +137,7 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
 	return result;
 }
 
-void check_shallow_file_for_update(void)
+static void check_shallow_file_for_update(void)
 {
 	if (is_shallow == -1)
 		die("BUG: shallow must be initialized by now");

urlmatch.c

@@ -412,9 +412,9 @@ static size_t url_match_prefix(const char *url,
 	return 0;
 }
 
-int match_urls(const struct url_info *url,
-	       const struct url_info *url_prefix,
-	       int *exactusermatch)
+static int match_urls(const struct url_info *url,
+		      const struct url_info *url_prefix,
+		      int *exactusermatch)
 {
 	/*
 	 * url_prefix matches url if the scheme, host and port of url_prefix

urlmatch.h

@@ -31,7 +31,6 @@ struct url_info {
 };
 
 extern char *url_normalize(const char *, struct url_info *);
-extern int match_urls(const struct url_info *url, const struct url_info *url_prefix, int *exactusermatch);
 
 struct urlmatch_item {
 	size_t matched_len;