#ifndef DIFF_H
#define DIFF_H
-extern void diff_addremove(int addremove,
+#define DIFF_FILE_CANON_MODE(mode) \
+ (S_ISREG(mode) ? (S_IFREG | ce_permissions(mode)) : \
+ S_ISLNK(mode) ? S_IFLNK : S_IFDIR)
+
+struct tree_desc {
+ void *buf;
+ unsigned long size;
+};
+
+struct diff_options;
+
+typedef void (*change_fn_t)(struct diff_options *options,
+ unsigned old_mode, unsigned new_mode,
+ const unsigned char *old_sha1,
+ const unsigned char *new_sha1,
+ const char *base, const char *path);
+
+typedef void (*add_remove_fn_t)(struct diff_options *options,
+ int addremove, unsigned mode,
+ const unsigned char *sha1,
+ const char *base, const char *path);
+
+struct diff_options {
+ const char **paths;
+ const char *filter;
+ const char *orderfile;
+ const char *pickaxe;
+ unsigned recursive:1,
+ tree_in_recursive:1,
+ full_index:1;
+ int break_opt;
+ int detect_rename;
+ int find_copies_harder;
+ int line_termination;
+ int output_format;
+ int pickaxe_opts;
+ int rename_score;
+ int reverse_diff;
+ int rename_limit;
+ int setup;
+
+ change_fn_t change;
+ add_remove_fn_t add_remove;
+};
+
+extern void diff_tree_setup_paths(const char **paths);
+extern int diff_tree(struct tree_desc *t1, struct tree_desc *t2,
+ const char *base, struct diff_options *opt);
+extern int diff_tree_sha1(const unsigned char *old, const unsigned char *new,
+ const char *base, struct diff_options *opt);
+
+extern void diff_addremove(struct diff_options *,
+ int addremove,
unsigned mode,
const unsigned char *sha1,
const char *base,
const char *path);
-extern void diff_change(unsigned mode1, unsigned mode2,
- const unsigned char *sha1,
- const unsigned char *sha2,
- const char *base, const char *path);
-
-extern void diff_unmerge(const char *path);
-
-/* These are for diff-tree-helper */
-
-struct diff_spec {
- union {
- const char *name; /* path on the filesystem */
- unsigned char sha1[20]; /* blob object ID */
- } u;
- unsigned short mode; /* file mode */
- unsigned sha1_valid : 1; /* if true, use u.sha1 and trust mode.
- * (however with a NULL SHA1, read them
- * from the file!).
- * if false, use u.name and read mode from
- * the filesystem.
- */
- unsigned file_valid : 1; /* if false the file does not even exist */
-};
+extern void diff_change(struct diff_options *,
+ unsigned mode1, unsigned mode2,
+ const unsigned char *sha1,
+ const unsigned char *sha2,
+ const char *base, const char *path);
+
+extern void diff_unmerge(struct diff_options *,
+ const char *path);
+
+extern int diff_scoreopt_parse(const char *opt);
-extern void run_external_diff(const char *name,
- struct diff_spec *, struct diff_spec *);
+#define DIFF_SETUP_REVERSE 1
+#define DIFF_SETUP_USE_CACHE 2
+#define DIFF_SETUP_USE_SIZE_CACHE 4
+
+extern int git_diff_config(const char *var, const char *value);
+extern void diff_setup(struct diff_options *);
+extern int diff_opt_parse(struct diff_options *, const char **, int);
+extern int diff_setup_done(struct diff_options *);
+
+#define DIFF_DETECT_RENAME 1
+#define DIFF_DETECT_COPY 2
+
+#define DIFF_PICKAXE_ALL 1
+
+extern void diffcore_std(struct diff_options *);
+
+extern void diffcore_std_no_resolve(struct diff_options *);
+
+#define COMMON_DIFF_OPTIONS_HELP \
+"\ncommon diff options:\n" \
+" -z output diff-raw with lines terminated with NUL.\n" \
+" -p output patch format.\n" \
+" -u synonym for -p.\n" \
+" --name-only show only names of changed files.\n" \
+" --name-status show names and status of changed files.\n" \
+" --full-index show full object name on index ines.\n" \
+" -R swap input file pairs.\n" \
+" -B detect complete rewrites.\n" \
+" -M detect renames.\n" \
+" -C detect copies.\n" \
+" --find-copies-harder\n" \
+" try unchanged files as candidate for copy detection.\n" \
+" -l<n> limit rename attempts up to <n> paths.\n" \
+" -O<file> reorder diffs according to the <file>.\n" \
+" -S<string> find filepair whose only one side contains the string.\n" \
+" --pickaxe-all\n" \
+" show all files diff when -S is used and hit is found.\n"
+
+extern int diff_queue_is_empty(void);
+
+#define DIFF_FORMAT_RAW 1
+#define DIFF_FORMAT_PATCH 2
+#define DIFF_FORMAT_NO_OUTPUT 3
+#define DIFF_FORMAT_NAME 4
+#define DIFF_FORMAT_NAME_STATUS 5
+
+extern void diff_flush(struct diff_options*);
+
+/* diff-raw status letters */
+#define DIFF_STATUS_ADDED 'A'
+#define DIFF_STATUS_COPIED 'C'
+#define DIFF_STATUS_DELETED 'D'
+#define DIFF_STATUS_MODIFIED 'M'
+#define DIFF_STATUS_RENAMED 'R'
+#define DIFF_STATUS_TYPE_CHANGED 'T'
+#define DIFF_STATUS_UNKNOWN 'X'
+#define DIFF_STATUS_UNMERGED 'U'
+
+/* these are not diff-raw status letters proper, but used by
+ * diffcore-filter insn to specify additional restrictions.
+ */
+#define DIFF_STATUS_FILTER_AON '*'
+#define DIFF_STATUS_FILTER_BROKEN 'B'
#endif /* DIFF_H */