1 files changed, 55 insertions, 5 deletions

diff --git a/git.h b/git.h
index 443f216..dfa3542 100644
--- a/git.h
+++ b/git.h
@@ -1,399 +1,449 @@
 #ifndef GIT_H
 #define GIT_H
 
 
 /*
  * from git:git-compat-util.h 
  */
 
 
 #ifndef FLEX_ARRAY
 #if defined(__GNUC__) && (__GNUC__ < 3)
 #define FLEX_ARRAY 0
 #else
 #define FLEX_ARRAY /* empty */
 #endif
 #endif
 
 
 #include <unistd.h>
 #include <stdio.h>
 #include <sys/stat.h>
 #include <fcntl.h>
 #include <stddef.h>
 #include <stdlib.h>
 #include <stdarg.h>
 #include <string.h>
 #include <errno.h>
 #include <limits.h>
 #include <sys/param.h>
 #include <netinet/in.h>
 #include <sys/types.h>
 #include <dirent.h>
 #include <time.h>
 
 
+/* On most systems <limits.h> would have given us this, but
+ * not on some systems (e.g. GNU/Hurd).
+ */
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
+
+#ifdef __GNUC__
+#define NORETURN __attribute__((__noreturn__))
+#else
+#define NORETURN
+#ifndef __attribute__
+#define __attribute__(x)
+#endif
+#endif
+
+
+extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
+
+
 static inline char* xstrdup(const char *str)
 {
         char *ret = strdup(str);
         if (!ret)
                 die("Out of memory, strdup failed");
         return ret;
 }
 
 static inline void *xmalloc(size_t size)
 {
         void *ret = malloc(size);
         if (!ret && !size)
                 ret = malloc(1);
         if (!ret)
                 die("Out of memory, malloc failed");
 #ifdef XMALLOC_POISON
         memset(ret, 0xA5, size);
 #endif
         return ret;
 }
 
 static inline void *xrealloc(void *ptr, size_t size)
 {
         void *ret = realloc(ptr, size);
         if (!ret && !size)
                 ret = realloc(ptr, 1);
         if (!ret)
                 die("Out of memory, realloc failed");
         return ret;
 }
 
 static inline void *xcalloc(size_t nmemb, size_t size)
 {
         void *ret = calloc(nmemb, size);
         if (!ret && (!nmemb || !size))
                 ret = calloc(1, 1);
         if (!ret)
                 die("Out of memory, calloc failed");
         return ret;
 }
 
 static inline ssize_t xread(int fd, void *buf, size_t len)
 {
         ssize_t nr;
         while (1) {
                 nr = read(fd, buf, len);
                 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
                         continue;
                 return nr;
         }
 }
 
 static inline ssize_t xwrite(int fd, const void *buf, size_t len)
 {
         ssize_t nr;
         while (1) {
                 nr = write(fd, buf, len);
                 if ((nr < 0) && (errno == EAGAIN || errno == EINTR))
                         continue;
                 return nr;
         }
 }
 
 
 
 
 /*
  * from git:cache.h
  */
 
 
 /* Convert to/from hex/sha1 representation */
 #define MINIMUM_ABBREV 4
 #define DEFAULT_ABBREV 7
 
+extern int sha1_object_info(const unsigned char *, char *, unsigned long *);
 
 extern void * read_sha1_file(const unsigned char *sha1, char *type, unsigned long *size);
 
+extern int get_sha1(const char *str, unsigned char *sha1);
+extern int get_sha1_hex(const char *hex, unsigned char *sha1);
+        extern char *sha1_to_hex(const unsigned char *sha1);/* static buffer result! */
 
 
 
 /*
  * from git:object.h 
  */
 
 struct object_list {
         struct object *item;
         struct object_list *next;
 };
 
 struct object_refs {
         unsigned count;
         struct object *base;
         struct object *ref[FLEX_ARRAY]; /* more */
 };
 
 struct object_array {
         unsigned int nr;
         unsigned int alloc;
         struct object_array_entry {
                 struct object *item;
                 const char *name;
         } *objects;
 };
 
 #define TYPE_BITS   3
 #define FLAG_BITS  27
 
 /*
  * The object type is stored in 3 bits.
  */
 struct object {
         unsigned parsed : 1;
         unsigned used : 1;
         unsigned type : TYPE_BITS;
         unsigned flags : FLAG_BITS;
         unsigned char sha1[20];
 };
 
 
 /*
  * from git:tree.h
  */
 
 struct tree {
         struct object object;
         void *buffer;
         unsigned long size;
 };
 
 
 
 
 /* from git:commit.h */
 
 struct commit_list {
         struct commit *item;
         struct commit_list *next;
 };
 
 struct commit {
         struct object object;
         void *util;
         unsigned long date;
         struct commit_list *parents;
         struct tree *tree;
         char *buffer;
 };
 
 
+struct commit *lookup_commit(const unsigned char *sha1);
+struct commit *lookup_commit_reference(const unsigned char *sha1);
+struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
+                                              int quiet);
+
+int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
+int parse_commit(struct commit *item);
+
+struct commit_list * commit_list_insert(struct commit *item, struct commit_list **list_p);
+struct commit_list * insert_by_date(struct commit *item, struct commit_list **list);
+
+void free_commit_list(struct commit_list *list);
+
+void sort_by_date(struct commit_list **list);
+
 /* Commit formats */
 enum cmit_fmt {
         CMIT_FMT_RAW,
         CMIT_FMT_MEDIUM,
         CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
         CMIT_FMT_SHORT,
         CMIT_FMT_FULL,
         CMIT_FMT_FULLER,
         CMIT_FMT_ONELINE,
         CMIT_FMT_EMAIL,
 
         CMIT_FMT_UNSPECIFIED,
 };
 
+extern unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *, unsigned long len, char *buf, unsigned long space, int abbrev, const char *subject, const char *after_subject, int relative_date);
 
 
-struct commit *lookup_commit(const unsigned char *sha1);
-struct commit *lookup_commit_reference(const unsigned char *sha1);
-struct commit *lookup_commit_reference_gently(const unsigned char *sha1,
-                                              int quiet);
-
 typedef void (*topo_sort_set_fn_t)(struct commit*, void *data);
 typedef void* (*topo_sort_get_fn_t)(struct commit*);
 
 
 
 
 /*
  *  from git:diff.h
  */
 
 
 struct rev_info;
 struct diff_options;
 struct diff_queue_struct;
 
 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);
 
 typedef void (*diff_format_fn_t)(struct diff_queue_struct *q,
                 struct diff_options *options, void *data);
 
         #define DIFF_FORMAT_RAW         0x0001
         #define DIFF_FORMAT_DIFFSTAT0x0002
         #define DIFF_FORMAT_NUMSTAT0x0004
         #define DIFF_FORMAT_SUMMARY0x0008
         #define DIFF_FORMAT_PATCH0x0010
 
 /* These override all above */
         #define DIFF_FORMAT_NAME0x0100
         #define DIFF_FORMAT_NAME_STATUS0x0200
         #define DIFF_FORMAT_CHECKDIFF0x0400
 
 /* Same as output_format = 0 but we know that -s flag was given
  * and we should not give default value to output_format.
  */
         #define DIFF_FORMAT_NO_OUTPUT0x0800
 
         #define DIFF_FORMAT_CALLBACK0x1000
 
 struct diff_options {
         const char *filter;
         const char *orderfile;
         const char *pickaxe;
         const char *single_follow;
         unsigned recursive:1,
                  tree_in_recursive:1,
                  binary:1,
                  text:1,
                  full_index:1,
                  silent_on_remove:1,
                  find_copies_harder:1,
                  color_diff:1,
                  color_diff_words:1;
         int context;
         int break_opt;
         int detect_rename;
         int line_termination;
         int output_format;
         int pickaxe_opts;
         int rename_score;
         int reverse_diff;
         int rename_limit;
         int setup;
         int abbrev;
         const char *msg_sep;
         const char *stat_sep;
         long xdl_opts;
 
         int stat_width;
         int stat_name_width;
 
         int nr_paths;
         const char **paths;
         int *pathlens;
         change_fn_t change;
         add_remove_fn_t add_remove;
         diff_format_fn_t format_callback;
         void *format_callback_data;
 };
 
 enum color_diff {
         DIFF_RESET = 0,
         DIFF_PLAIN = 1,
         DIFF_METAINFO = 2,
         DIFF_FRAGINFO = 3,
         DIFF_FILE_OLD = 4,
         DIFF_FILE_NEW = 5,
         DIFF_COMMIT = 6,
         DIFF_WHITESPACE = 7,
 };
 
 
 
 
+/*
+ * from git:refs.g
+ */
+
+typedef int each_ref_fn(const char *refname, const unsigned char *sha1, int flags, void *cb_data);
+extern int head_ref(each_ref_fn, void *);
+extern int for_each_ref(each_ref_fn, void *);
+extern int for_each_tag_ref(each_ref_fn, void *);
+extern int for_each_branch_ref(each_ref_fn, void *);
+extern int for_each_remote_ref(each_ref_fn, void *);
 
 
 
 /*
  * from git:revision.h
  */
 
 struct rev_info;
 struct log_info;
 
 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
 
 struct rev_info {
         /* Starting list */
         struct commit_list *commits;
         struct object_array pending;
 
         /* Basic information */
         const char *prefix;
         void *prune_data;
         prune_fn_t *prune_fn;
 
         /* Traversal flags */
                 unsigned intdense:1,
                         no_merges:1,
                         no_walk:1,
                         remove_empty_trees:1,
                         simplify_history:1,
                         lifo:1,
                         topo_order:1,
                         tag_objects:1,
                         tree_objects:1,
                         blob_objects:1,
                         edge_hint:1,
                         limited:1,
                         unpacked:1, /* see also ignore_packed below */
                         boundary:1,
                         parents:1;
 
         /* Diff flags */
                 unsigned intdiff:1,
                         full_diff:1,
                         show_root_diff:1,
                         no_commit_id:1,
                         verbose_header:1,
                         ignore_merges:1,
                         combine_merges:1,
                         dense_combined_merges:1,
                         always_show_header:1;
 
         /* Format info */
                 unsigned intshown_one:1,
                         abbrev_commit:1,
                         relative_date:1;
 
         const char **ignore_packed; /* pretend objects in these are unpacked */
         int num_ignore_packed;
 
                 unsigned intabbrev;
                 enum cmit_fmtcommit_format;
         struct log_info *loginfo;
                 int     nr, total;
                 const char*mime_boundary;
                 const char*message_id;
                 const char*ref_message_id;
                 const char*add_signoff;
                 const char*extra_headers;
 
         /* Filter by commit log message */
                 struct grep_opt*grep_filter;
 
         /* special limits */
         int max_count;
         unsigned long max_age;
         unsigned long min_age;
 
         /* diff info for patches and for paths limiting */
         struct diff_options diffopt;
         struct diff_options pruning;
 
         topo_sort_set_fn_t topo_setter;
         topo_sort_get_fn_t topo_getter;
 };
 
 
+extern void init_revisions(struct rev_info *revs, const char *prefix);
+extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
+extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
+
+extern void prepare_revision_walk(struct rev_info *revs);
 extern struct commit *get_revision(struct rev_info *revs);
 
 
 
 
 #endif /* GIT_H */