compat: Add simplified merge sort implementation from glibc

diff --git a/cache.h b/cache.h
index ff2a1c0778253083bced51f4e4916c2c30caa4b1..549f4bbac7242714283e58dd576460ca86015d52 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -308,7 +308,7 @@ extern int commit_lock_file(struct lock_file *);
 extern int hold_locked_index(struct lock_file *, int);
 extern int commit_locked_index(struct lock_file *);
 extern void set_alternate_index_output(const char *);
-
+extern int close_lock_file(struct lock_file *);
 extern void rollback_lock_file(struct lock_file *);
 extern int delete_ref(const char *, const unsigned char *sha1);
 
@@ -453,9 +453,13 @@ void datestamp(char *buf, int bufsize);
 unsigned long approxidate(const char *);
 enum date_mode parse_date_format(const char *format);
 
+#define IDENT_WARN_ON_NO_NAME  1
+#define IDENT_ERROR_ON_NO_NAME 2
+#define IDENT_NO_DATE         4
 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);
 
 struct checkout {
        const char *base_dir;
@@ -557,6 +561,7 @@ extern struct packed_git *find_sha1_pack(const unsigned char *sha1,
 extern void pack_report(void);
 extern int open_pack_index(struct packed_git *);
 extern unsigned char* use_pack(struct packed_git *, struct pack_window **, off_t, unsigned int *);
+extern void close_pack_windows(struct packed_git *);
 extern void unuse_pack(struct pack_window **);
 extern struct packed_git *add_packed_git(const char *, int, int);
 extern const unsigned char *nth_packed_object_sha1(struct packed_git *, uint32_t);
@@ -604,7 +609,7 @@ extern int write_or_whine_pipe(int fd, const void *buf, size_t count, const char
 /* pager.c */
 extern void setup_pager(void);
 extern char *pager_program;
-extern int pager_in_use;
+extern int pager_in_use(void);
 extern int pager_use_color;
 
 extern char *editor_program;
@@ -631,10 +636,34 @@ extern void trace_argv_printf(const char **argv, const char *format, ...);
 extern int convert_to_git(const char *path, const char *src, size_t len, struct strbuf *dst);
 extern int convert_to_working_tree(const char *path, const char *src, size_t len, struct strbuf *dst);
 
+/* add */
+void add_files_to_cache(int verbose, const char *prefix, const char **pathspec);
+
 /* diff.c */
 extern int diff_auto_refresh_index;
 
 /* match-trees.c */
 void shift_tree(const unsigned char *, const unsigned char *, unsigned char *, int);
 
+/*
+ * whitespace rules.
+ * used by both diff and apply
+ */
+#define WS_TRAILING_SPACE      01
+#define WS_SPACE_BEFORE_TAB    02
+#define WS_INDENT_WITH_NON_TAB 04
+#define WS_DEFAULT_RULE (WS_TRAILING_SPACE|WS_SPACE_BEFORE_TAB)
+extern unsigned whitespace_rule_cfg;
+extern unsigned whitespace_rule(const char *);
+extern unsigned parse_whitespace_rule(const char *);
+extern unsigned check_and_emit_line(const char *line, int len, unsigned ws_rule,
+    FILE *stream, const char *set,
+    const char *reset, const char *ws);
+extern char *whitespace_error_string(unsigned ws);
+
+/* ls-files */
+int pathspec_match(const char **spec, char *matched, const char *filename, int skiplen);
+int report_path_error(const char *ps_matched, const char **pathspec, int prefix_offset);
+void overlay_tree_on_cache(const char *tree_name, const char *prefix);
+
 #endif /* CACHE_H */