revision.h

   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #define SEEN            (1u<<0)
   5 #define UNINTERESTING   (1u<<1)
   6 #define TREECHANGE      (1u<<2)
   7 #define SHOWN           (1u<<3)
   8 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
   9 #define BOUNDARY        (1u<<5)
  10 #define CHILD_SHOWN     (1u<<6)
  11 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  12 #define SYMMETRIC_LEFT  (1u<<8)
  13
  14 struct rev_info;
  15 struct log_info;
  16
  17 typedef void (prune_fn_t)(struct rev_info *revs, struct commit *commit);
  18
  19 struct rev_info {
  20         /* Starting list */
  21         struct commit_list *commits;
  22         struct object_array pending;
  23
  24         /* Parents of shown commits */
  25         struct object_array boundary_commits;
  26
  27         /* Basic information */
  28         const char *prefix;
  29         void *prune_data;
  30         prune_fn_t *prune_fn;
  31
  32         /* Traversal flags */
  33         unsigned int    dense:1,
  34                         no_merges:1,
  35                         no_walk:1,
  36                         remove_empty_trees:1,
  37                         simplify_history:1,
  38                         lifo:1,
  39                         topo_order:1,
  40                         tag_objects:1,
  41                         tree_objects:1,
  42                         blob_objects:1,
  43                         edge_hint:1,
  44                         limited:1,
  45                         unpacked:1, /* see also ignore_packed below */
  46                         boundary:2,
  47                         left_right:1,
  48                         parents:1,
  49                         reverse:1,
  50                         first_parent_only:1;
  51
  52         /* Diff flags */
  53         unsigned int    diff:1,
  54                         full_diff:1,
  55                         show_root_diff:1,
  56                         no_commit_id:1,
  57                         verbose_header:1,
  58                         ignore_merges:1,
  59                         combine_merges:1,
  60                         dense_combined_merges:1,
  61                         always_show_header:1;
  62
  63         /* Format info */
  64         unsigned int    shown_one:1,
  65                         abbrev_commit:1,
  66                         relative_date:1;
  67
  68         const char **ignore_packed; /* pretend objects in these are unpacked */
  69         int num_ignore_packed;
  70
  71         unsigned int    abbrev;
  72         enum cmit_fmt   commit_format;
  73         struct log_info *loginfo;
  74         int             nr, total;
  75         const char      *mime_boundary;
  76         const char      *message_id;
  77         const char      *ref_message_id;
  78         const char      *add_signoff;
  79         const char      *extra_headers;
  80         const char      *log_reencode;
  81         const char      *subject_prefix;
  82         int             no_inline;
  83
  84         /* Filter by commit log message */
  85         struct grep_opt *grep_filter;
  86
  87         /* special limits */
  88         int skip_count;
  89         int max_count;
  90         unsigned long max_age;
  91         unsigned long min_age;
  92
  93         /* diff info for patches and for paths limiting */
  94         struct diff_options diffopt;
  95         struct diff_options pruning;
  96
  97         topo_sort_set_fn_t topo_setter;
  98         topo_sort_get_fn_t topo_getter;
  99
 100         struct reflog_walk_info *reflog_info;
 101 };
 102
 103 #define REV_TREE_SAME           0
 104 #define REV_TREE_NEW            1
 105 #define REV_TREE_DIFFERENT      2
 106
 107 /* revision.c */
 108 extern int rev_same_tree_as_empty(struct rev_info *, struct tree *t1);
 109 extern int rev_compare_tree(struct rev_info *, struct tree *t1, struct tree *t2);
 110
 111 extern void init_revisions(struct rev_info *revs, const char *prefix);
 112 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 113 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 114
 115 extern void prepare_revision_walk(struct rev_info *revs);
 116 extern struct commit *get_revision(struct rev_info *revs);
 117
 118 extern void mark_parents_uninteresting(struct commit *commit);
 119 extern void mark_tree_uninteresting(struct tree *tree);
 120
 121 struct name_path {
 122         struct name_path *up;
 123         int elem_len;
 124         const char *elem;
 125 };
 126
 127 extern void add_object(struct object *obj,
 128                        struct object_array *p,
 129                        struct name_path *path,
 130                        const char *name);
 131
 132 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 133
 134 #endif