Merge branch 'jc/make-static'

Turn many file-scope private symbols to static to reduce the
global namespace contamination.

* jc/make-static:
  sequencer.c: mark a private file-scope symbol as static
  ident.c: mark private file-scope symbols as static
  trace.c: mark a private file-scope symbol as static
  wt-status.c: mark a private file-scope symbol as static
  read-cache.c: mark a private file-scope symbol as static
  strbuf.c: mark a private file-scope symbol as static
  sha1-array.c: mark a private file-scope symbol as static
  symlinks.c: mark private file-scope symbols as static
  notes.c: mark a private file-scope symbol as static
  rerere.c: mark private file-scope symbols as static
  graph.c: mark private file-scope symbols as static
  diff.c: mark a private file-scope symbol as static
  commit.c: mark a file-scope private symbol as static
  builtin/notes.c: mark file-scope private symbols as static

26 files changed, 69 insertions, 96 deletions

diff --git a/Documentation/technical/api-sha1-array.txt b/Documentation/technical/api-sha1-array.txt
index 4a4bae8109..45d1c517cd 100644
--- a/Documentation/technical/api-sha1-array.txt
+++ b/Documentation/technical/api-sha1-array.txt
@@ -25,9 +25,6 @@ Functions
 	the array (but note that some operations below may lose this
 	ordering).
 
-`sha1_array_sort`::
-	Sort the elements in the array.
-
 `sha1_array_lookup`::
 	Perform a binary search of the array for a specific sha1.
 	If found, returns the offset (in number of elements) of the
diff --git a/builtin.h b/builtin.h
index 8e377522fe..95116b8535 100644
--- a/builtin.h
+++ b/builtin.h
@@ -21,7 +21,6 @@ struct fmt_merge_msg_opts {
 
 extern int fmt_merge_msg(struct strbuf *in, struct strbuf *out,
 			 struct fmt_merge_msg_opts *);
-extern void commit_notes(struct notes_tree *t, const char *msg);
 
 struct notes_rewrite_cfg {
 	struct notes_tree **trees;
@@ -33,7 +32,6 @@ struct notes_rewrite_cfg {
 	int mode_from_env;
 };
 
-combine_notes_fn parse_combine_notes_fn(const char *v);
 struct notes_rewrite_cfg *init_copy_notes_for_rewrite(const char *cmd);
 int copy_note_for_rewrite(struct notes_rewrite_cfg *c,
 			  const unsigned char *from_obj, const unsigned char *to_obj);
diff --git a/builtin/notes.c b/builtin/notes.c
index 554c80167c..453457adb9 100644
--- a/builtin/notes.c
+++ b/builtin/notes.c
@@ -19,6 +19,9 @@
 #include "string-list.h"
 #include "notes-merge.h"
 
+static void commit_notes(struct notes_tree *t, const char *msg);
+static combine_notes_fn parse_combine_notes_fn(const char *v);
+
 static const char * const git_notes_usage[] = {
 	N_("git notes [--ref <notes_ref>] [list [<object>]]"),
 	N_("git notes [--ref <notes_ref>] add [-f] [-m <msg> | -F <file> | (-c | -C) <object>] [<object>]"),
@@ -288,7 +291,7 @@ static int parse_reedit_arg(const struct option *opt, const char *arg, int unset
 	return parse_reuse_arg(opt, arg, unset);
 }
 
-void commit_notes(struct notes_tree *t, const char *msg)
+static void commit_notes(struct notes_tree *t, const char *msg)
 {
 	struct strbuf buf = STRBUF_INIT;
 	unsigned char commit_sha1[20];
@@ -312,7 +315,7 @@ void commit_notes(struct notes_tree *t, const char *msg)
 	strbuf_release(&buf);
 }
 
-combine_notes_fn parse_combine_notes_fn(const char *v)
+static combine_notes_fn parse_combine_notes_fn(const char *v)
 {
 	if (!strcasecmp(v, "overwrite"))
 		return combine_notes_overwrite;
diff --git a/cache.h b/cache.h
index eb4a0316d2..a58df84bd3 100644
--- a/cache.h
+++ b/cache.h
@@ -442,7 +442,6 @@ extern int discard_index(struct index_state *);
 extern int unmerged_index(const struct index_state *);
 extern int verify_path(const char *path);
 extern struct cache_entry *index_name_exists(struct index_state *istate, const char *name, int namelen, int igncase);
-extern int index_name_stage_pos(const struct index_state *, const char *name, int namelen, int stage);
 extern int index_name_pos(const struct index_state *, const char *name, int namelen);
 #define ADD_CACHE_OK_TO_ADD 1		/* Ok to add */
 #define ADD_CACHE_OK_TO_REPLACE 2	/* Ok to replace file/directory */
@@ -902,9 +901,7 @@ extern const char *git_author_info(int);
 extern const char *git_committer_info(int);
 extern const char *fmt_ident(const char *name, const char *email, const char *date_str, int);
 extern const char *fmt_name(const char *name, const char *email);
-extern const char *ident_default_name(void);
 extern const char *ident_default_email(void);
-extern const char *ident_default_date(void);
 extern const char *git_editor(void);
 extern const char *git_pager(int stdout_is_tty);
 extern int git_ident_config(const char *, const char *, void *);
@@ -947,9 +944,7 @@ struct cache_def {
 extern int has_symlink_leading_path(const char *name, int len);
 extern int threaded_has_symlink_leading_path(struct cache_def *, const char *, int);
 extern int check_leading_path(const char *name, int len);
-extern int threaded_check_leading_path(struct cache_def *cache, const char *name, int len);
 extern int has_dirs_only_path(const char *name, int len, int prefix_len);
-extern int threaded_has_dirs_only_path(struct cache_def *cache, const char *name, int len, int prefix_len);
 extern void schedule_dir_for_removal(const char *name, int len);
 extern void remove_scheduled_dirs(void);
 
@@ -1208,7 +1203,6 @@ extern void alloc_report(void);
 /* trace.c */
 __attribute__((format (printf, 1, 2)))
 extern void trace_printf(const char *format, ...);
-extern void trace_vprintf(const char *key, const char *format, va_list ap);
 __attribute__((format (printf, 2, 3)))
 extern void trace_argv_printf(const char **argv, const char *format, ...);
 extern void trace_repo_setup(const char *prefix);
diff --git a/commit.c b/commit.c
index 0ea441d13b..02467676a3 100644
--- a/commit.c
+++ b/commit.c
@@ -9,6 +9,8 @@
 #include "gpg-interface.h"
 #include "mergesort.h"
 
+static struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
+
 int save_commit_buffer = 1;
 
 const char *commit_type = "commit";
@@ -1073,8 +1075,9 @@ static int excluded_header_field(const char *field, size_t len, const char **exc
 	return 0;
 }
 
-struct commit_extra_header *read_commit_extra_header_lines(const char *buffer, size_t size,
-							   const char **exclude)
+static struct commit_extra_header *read_commit_extra_header_lines(
+	const char *buffer, size_t size,
+	const char **exclude)
 {
 	struct commit_extra_header *extra = NULL, **tail = &extra, *it = NULL;
 	const char *line, *next, *eof, *eob;
diff --git a/commit.h b/commit.h
index 6edce87673..9f2131318d 100644
--- a/commit.h
+++ b/commit.h
@@ -204,7 +204,6 @@ extern int commit_tree_extended(const struct strbuf *msg, unsigned char *tree,
 				struct commit_extra_header *);
 
 extern struct commit_extra_header *read_commit_extra_headers(struct commit *, const char **);
-extern struct commit_extra_header *read_commit_extra_header_lines(const char *buf, size_t len, const char **);
 
 extern void free_commit_extra_headers(struct commit_extra_header *extra);
 
diff --git a/diff.c b/diff.c
index 32142dba64..35d3f07385 100644
--- a/diff.c
+++ b/diff.c
@@ -25,7 +25,7 @@
 static int diff_detect_rename_default;
 static int diff_rename_limit_default = 400;
 static int diff_suppress_blank_empty;
-int diff_use_color_default = -1;
+static int diff_use_color_default = -1;
 static const char *diff_word_regex_cfg;
 static const char *external_diff_cmd_cfg;
 int diff_auto_refresh_index = 1;
diff --git a/diff.h b/diff.h
index e25addb806..a658f85f2b 100644
--- a/diff.h
+++ b/diff.h
@@ -243,7 +243,6 @@ extern int parse_long_opt(const char *opt, const char **argv,
 
 extern int git_diff_basic_config(const char *var, const char *value, void *cb);
 extern int git_diff_ui_config(const char *var, const char *value, void *cb);
-extern int diff_use_color_default;
 extern void diff_setup(struct diff_options *);
 extern int diff_opt_parse(struct diff_options *, const char **, int);
 extern void diff_setup_done(struct diff_options *);
diff --git a/graph.c b/graph.c
index 7e0a099f83..e864fe2c6a 100644
--- a/graph.c
+++ b/graph.c
@@ -8,6 +8,34 @@
 /* Internal API */
 
 /*
+ * Output the next line for a graph.
+ * This formats the next graph line into the specified strbuf.  It is not
+ * terminated with a newline.
+ *
+ * Returns 1 if the line includes the current commit, and 0 otherwise.
+ * graph_next_line() will return 1 exactly once for each time
+ * graph_update() is called.
+ */
+static int graph_next_line(struct git_graph *graph, struct strbuf *sb);
+
+/*
+ * Set up a custom scheme for column colors.
+ *
+ * The default column color scheme inserts ANSI color escapes to colorize
+ * the graph. The various color escapes are stored in an array of strings
+ * where each entry corresponds to a color, except for the last entry,
+ * which denotes the escape for resetting the color back to the default.
+ * When generating the graph, strings from this array are inserted before
+ * and after the various column characters.
+ *
+ * This function allows you to enable a custom array of color escapes.
+ * The 'colors_max' argument is the index of the last "reset" entry.
+ *
+ * This functions must be called BEFORE graph_init() is called.
+ */
+static void graph_set_column_colors(const char **colors, unsigned short colors_max);
+
+/*
  * Output a padding line in the graph.
  * This is similar to graph_next_line().  However, it is guaranteed to
  * never print the current commit line.  Instead, if the commit line is
@@ -62,7 +90,7 @@ enum graph_state {
 static const char **column_colors;
 static unsigned short column_colors_max;
 
-void graph_set_column_colors(const char **colors, unsigned short colors_max)
+static void graph_set_column_colors(const char **colors, unsigned short colors_max)
 {
 	column_colors = colors;
 	column_colors_max = colors_max;
@@ -1116,7 +1144,7 @@ static void graph_output_collapsing_line(struct git_graph *graph, struct strbuf
 		graph_update_state(graph, GRAPH_PADDING);
 }
 
-int graph_next_line(struct git_graph *graph, struct strbuf *sb)
+static int graph_next_line(struct git_graph *graph, struct strbuf *sb)
 {
 	switch (graph->state) {
 	case GRAPH_PADDING:
diff --git a/graph.h b/graph.h
index aff960c7e8..19b0f66316 100644
--- a/graph.h
+++ b/graph.h
@@ -4,22 +4,6 @@
 /* A graph is a pointer to this opaque structure */
 struct git_graph;
 
-/*
- * Set up a custom scheme for column colors.
- *
- * The default column color scheme inserts ANSI color escapes to colorize
- * the graph. The various color escapes are stored in an array of strings
- * where each entry corresponds to a color, except for the last entry,
- * which denotes the escape for resetting the color back to the default.
- * When generating the graph, strings from this array are inserted before
- * and after the various column characters.
- *
- * This function allows you to enable a custom array of color escapes.
- * The 'colors_max' argument is the index of the last "reset" entry.
- *
- * This functions must be called BEFORE graph_init() is called.
- */
-void graph_set_column_colors(const char **colors, unsigned short colors_max);
 
 /*
  * Create a new struct git_graph.
@@ -49,17 +33,6 @@ void graph_update(struct git_graph *graph, struct commit *commit);
  */
 int graph_is_commit_finished(struct git_graph const *graph);
 
-/*
- * Output the next line for a graph.
- * This formats the next graph line into the specified strbuf.  It is not
- * terminated with a newline.
- *
- * Returns 1 if the line includes the current commit, and 0 otherwise.
- * graph_next_line() will return 1 exactly once for each time
- * graph_update() is called.
- */
-int graph_next_line(struct git_graph *graph, struct strbuf *sb);
-
 
 /*
  * graph_show_*: helper functions for printing to stdout
diff --git a/ident.c b/ident.c
index 484e0a9803..a4bf206e2f 100644
--- a/ident.c
+++ b/ident.c
@@ -93,7 +93,7 @@ static void copy_email(const struct passwd *pw, struct strbuf *email)
 	add_domainname(email);
 }
 
-const char *ident_default_name(void)
+static const char *ident_default_name(void)
 {
 	if (!git_default_name.len) {
 		copy_gecos(xgetpwuid_self(), &git_default_name);
@@ -117,7 +117,7 @@ const char *ident_default_email(void)
 	return git_default_email.buf;
 }
 
-const char *ident_default_date(void)
+static const char *ident_default_date(void)
 {
 	if (!git_default_date[0])
 		datestamp(git_default_date, sizeof(git_default_date));
diff --git a/notes.c b/notes.c
index 93e9868d5d..bc454e1eab 100644
--- a/notes.c
+++ b/notes.c
@@ -1196,8 +1196,18 @@ void free_notes(struct notes_tree *t)
 	memset(t, 0, sizeof(struct notes_tree));
 }
 
-void format_note(struct notes_tree *t, const unsigned char *object_sha1,
-		struct strbuf *sb, const char *output_encoding, int flags)
+/*
+ * Fill the given strbuf with the notes associated with the given object.
+ *
+ * If the given notes_tree structure is not initialized, it will be auto-
+ * initialized to the default value (see documentation for init_notes() above).
+ * If the given notes_tree is NULL, the internal/default notes_tree will be
+ * used instead.
+ *
+ * 'flags' is a bitwise combination of the flags for format_display_notes.
+ */
+static void format_note(struct notes_tree *t, const unsigned char *object_sha1,
+			struct strbuf *sb, const char *output_encoding, int flags)
 {
 	static const char utf8[] = "utf-8";
 	const unsigned char *sha1;
diff --git a/notes.h b/notes.h
index c716694b9e..3592b19d2d 100644
--- a/notes.h
+++ b/notes.h
@@ -241,20 +241,6 @@ void free_notes(struct notes_tree *t);
 #define NOTES_SHOW_HEADER 1
 #define NOTES_INDENT 2
 
-/*
- * Fill the given strbuf with the notes associated with the given object.
- *
- * If the given notes_tree structure is not initialized, it will be auto-
- * initialized to the default value (see documentation for init_notes() above).
- * If the given notes_tree is NULL, the internal/default notes_tree will be
- * used instead.
- *
- * 'flags' is a bitwise combination of the above formatting flags.
- */
-void format_note(struct notes_tree *t, const unsigned char *object_sha1,
-		struct strbuf *sb, const char *output_encoding, int flags);
-
-
 struct string_list;
 
 struct display_notes_opt {
diff --git a/read-cache.c b/read-cache.c
index 79e3bbe024..fda78bc353 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -424,7 +424,7 @@ int cache_name_compare(const char *name1, int len1, const char *name2, int len2)
 	return cache_name_stage_compare(name1, len1, 0, name2, len2, 0);
 }
 
-int index_name_stage_pos(const struct index_state *istate, const char *name, int namelen, int stage)
+static int index_name_stage_pos(const struct index_state *istate, const char *name, int namelen, int stage)
 {
 	int first, last;
 
diff --git a/rerere.c b/rerere.c
index b57a34daa7..a6a5cd57be 100644
--- a/rerere.c
+++ b/rerere.c
@@ -25,7 +25,7 @@ const char *rerere_path(const char *hex, const char *file)
 	return git_path("rr-cache/%s/%s", hex, file);
 }
 
-int has_rerere_resolution(const char *hex)
+static int has_rerere_resolution(const char *hex)
 {
 	struct stat st;
 	return !stat(rerere_path(hex, "postimage"), &st);
diff --git a/rerere.h b/rerere.h
index fcd8bc10ba..156d2aad80 100644
--- a/rerere.h
+++ b/rerere.h
@@ -16,7 +16,6 @@ extern void *RERERE_RESOLVED;
 extern int setup_rerere(struct string_list *, int);
 extern int rerere(int);
 extern const char *rerere_path(const char *hex, const char *file);
-extern int has_rerere_resolution(const char *hex);
 extern int rerere_forget(const char **);
 extern int rerere_remaining(struct string_list *);
 extern void rerere_clear(struct string_list *);
diff --git a/sequencer.c b/sequencer.c
index dbef5cea02..e3723d2095 100644
--- a/sequencer.c
+++ b/sequencer.c
@@ -19,7 +19,7 @@
 
 const char sign_off_header[] = "Signed-off-by: ";
 
-void remove_sequencer_state(void)
+static void remove_sequencer_state(void)
 {
 	struct strbuf seq_dir = STRBUF_INIT;
 
diff --git a/sequencer.h b/sequencer.h
index 60287b8da2..9d57d57524 100644
--- a/sequencer.h
+++ b/sequencer.h
@@ -44,9 +44,6 @@ struct replay_opts {
 	struct rev_info *revs;
 };
 
-/* Removes SEQ_DIR. */
-extern void remove_sequencer_state(void);
-
 int sequencer_pick_revisions(struct replay_opts *opts);
 
 extern const char sign_off_header[];
diff --git a/sha1-array.c b/sha1-array.c
index b2f47f98fb..6f4a2246c9 100644
--- a/sha1-array.c
+++ b/sha1-array.c
@@ -14,7 +14,7 @@ static int void_hashcmp(const void *a, const void *b)
 	return hashcmp(a, b);
 }
 
-void sha1_array_sort(struct sha1_array *array)
+static void sha1_array_sort(struct sha1_array *array)
 {
 	qsort(array->sha1, array->nr, sizeof(*array->sha1), void_hashcmp);
 	array->sorted = 1;
diff --git a/sha1-array.h b/sha1-array.h
index 4499b5dad4..72bb33bec6 100644
--- a/sha1-array.h
+++ b/sha1-array.h
@@ -11,7 +11,6 @@ struct sha1_array {
 #define SHA1_ARRAY_INIT { NULL, 0, 0, 0 }
 
 void sha1_array_append(struct sha1_array *array, const unsigned char *sha1);
-void sha1_array_sort(struct sha1_array *array);
 int sha1_array_lookup(struct sha1_array *array, const unsigned char *sha1);
 void sha1_array_clear(struct sha1_array *array);
 
diff --git a/strbuf.c b/strbuf.c
index ec88266718..0510f76c24 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -445,8 +445,8 @@ static int is_rfc3986_unreserved(char ch)
 		ch == '-' || ch == '_' || ch == '.' || ch == '~';
 }
 
-void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
-			  int reserved)
+static void strbuf_add_urlencode(struct strbuf *sb, const char *s, size_t len,
+				 int reserved)
 {
 	strbuf_grow(sb, len);
 	while (len--) {
@@ -465,15 +465,6 @@ void strbuf_addstr_urlencode(struct strbuf *sb, const char *s,
 	strbuf_add_urlencode(sb, s, strlen(s), reserved);
 }
 
-void strbuf_addf_ln(struct strbuf *sb, const char *fmt, ...)
-{
-	va_list ap;
-	va_start(ap, fmt);
-	strbuf_vaddf(sb, fmt, ap);
-	va_end(ap);
-	strbuf_addch(sb, '\n');
-}
-
 int printf_ln(const char *fmt, ...)
 {
 	int ret;
diff --git a/strbuf.h b/strbuf.h
index b888d405db..be941ee481 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -99,8 +99,6 @@ __attribute__((format (printf,2,3)))
 extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
 __attribute__((format (printf,2,0)))
 extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
-__attribute__((format (printf,2,3)))
-extern void strbuf_addf_ln(struct strbuf *sb, const char *fmt, ...);
 
 extern void strbuf_add_lines(struct strbuf *sb, const char *prefix, const char *buf, size_t size);
 
@@ -126,8 +124,6 @@ extern int launch_editor(const char *path, struct strbuf *buffer, const char *co
 extern int strbuf_branchname(struct strbuf *sb, const char *name);
 extern int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
 
-extern void strbuf_add_urlencode(struct strbuf *, const char *, size_t,
-				 int reserved);
 extern void strbuf_addstr_urlencode(struct strbuf *, const char *,
 				    int reserved);
 
diff --git a/symlinks.c b/symlinks.c
index 290036744b..c2b41a8501 100644
--- a/symlinks.c
+++ b/symlinks.c
@@ -1,5 +1,8 @@
 #include "cache.h"
 
+static int threaded_check_leading_path(struct cache_def *cache, const char *name, int len);
+static int threaded_has_dirs_only_path(struct cache_def *cache, const char *name, int len, int prefix_len);
+
 /*
  * Returns the length (on a path component basis) of the longest
  * common prefix match of 'name_a' and 'name_b'.
@@ -231,7 +234,7 @@ int check_leading_path(const char *name, int len)
  * Return path length if leading path exists and is neither a
  * directory nor a symlink.
  */
-int threaded_check_leading_path(struct cache_def *cache, const char *name, int len)
+static int threaded_check_leading_path(struct cache_def *cache, const char *name, int len)
 {
 	int flags;
 	int match_len = lstat_cache_matchlen(cache, name, len, &flags,
@@ -263,7 +266,7 @@ int has_dirs_only_path(const char *name, int len, int prefix_len)
  * 'prefix_len', thus we then allow for symlinks in the prefix part as
  * long as those points to real existing directories.
  */
-int threaded_has_dirs_only_path(struct cache_def *cache, const char *name, int len, int prefix_len)
+static int threaded_has_dirs_only_path(struct cache_def *cache, const char *name, int len, int prefix_len)
 {
 	return lstat_cache(cache, name, len,
 			   FL_DIR|FL_FULLPATH, prefix_len) &
diff --git a/trace.c b/trace.c
index d95341693f..5ec0e3bd16 100644
--- a/trace.c
+++ b/trace.c
@@ -62,7 +62,7 @@ static int get_trace_fd(const char *key, int *need_close)
 static const char err_msg[] = "Could not trace into fd given by "
 	"GIT_TRACE environment variable";
 
-void trace_vprintf(const char *key, const char *fmt, va_list ap)
+static void trace_vprintf(const char *key, const char *fmt, va_list ap)
 {
 	struct strbuf buf = STRBUF_INIT;
 
diff --git a/wt-status.c b/wt-status.c
index 4eeaf2396a..2a9658bad4 100644
--- a/wt-status.c
+++ b/wt-status.c
@@ -100,8 +100,8 @@ void status_printf(struct wt_status *s, const char *color,
 	va_end(ap);
 }
 
-void status_printf_more(struct wt_status *s, const char *color,
-			const char *fmt, ...)
+static void status_printf_more(struct wt_status *s, const char *color,
+			       const char *fmt, ...)
 {
 	va_list ap;
 
diff --git a/wt-status.h b/wt-status.h
index f8fc58cc0a..236b41fd34 100644
--- a/wt-status.h
+++ b/wt-status.h
@@ -92,7 +92,5 @@ void status_printf_ln(struct wt_status *s, const char *color, const char *fmt, .
 	;
 void status_printf(struct wt_status *s, const char *color, const char *fmt, ...)
 	;
-void status_printf_more(struct wt_status *s, const char *color, const char *fmt, ...)
-	__attribute__((format(printf, 3, 4)));
 
 #endif /* STATUS_H */