revision.h

   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #define SEEN            (1u<<0)
   5 #define UNINTERESTING   (1u<<1)
   6 #define TREESAME        (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 #define TOPOSORT        (1u<<9) /* In the active toposort list.. */
  14
  15 struct rev_info;
  16 struct log_info;
  17
  18 struct rev_info {
  19         /* Starting list */
  20         struct commit_list *commits;
  21         struct object_array pending;
  22
  23         /* Parents of shown commits */
  24         struct object_array boundary_commits;
  25
  26         /* Basic information */
  27         const char *prefix;
  28         void *prune_data;
  29         unsigned int early_output;
  30
  31         /* Traversal flags */
  32         unsigned int    dense:1,
  33                         prune:1,
  34                         no_merges:1,
  35                         no_walk:1,
  36                         show_all:1,
  37                         remove_empty_trees:1,
  38                         simplify_history:1,
  39                         lifo:1,
  40                         topo_order:1,
  41                         tag_objects:1,
  42                         tree_objects:1,
  43                         blob_objects:1,
  44                         edge_hint:1,
  45                         limited:1,
  46                         unpacked:1, /* see also ignore_packed below */
  47                         boundary:2,
  48                         left_right:1,
  49                         parents:1,
  50                         reverse:1,
  51                         cherry_pick:1,
  52                         first_parent_only:1;
  53
  54         /* Diff flags */
  55         unsigned int    diff:1,
  56                         full_diff:1,
  57                         show_root_diff:1,
  58                         no_commit_id:1,
  59                         verbose_header:1,
  60                         ignore_merges:1,
  61                         combine_merges:1,
  62                         dense_combined_merges:1,
  63                         always_show_header:1;
  64
  65         /* Format info */
  66         unsigned int    shown_one:1,
  67                         abbrev_commit:1,
  68                         use_terminator:1;
  69         enum date_mode date_mode;
  70
  71         const char **ignore_packed; /* pretend objects in these are unpacked */
  72         int num_ignore_packed;
  73
  74         unsigned int    abbrev;
  75         enum cmit_fmt   commit_format;
  76         struct log_info *loginfo;
  77         int             nr, total;
  78         const char      *mime_boundary;
  79         char            *message_id;
  80         const char      *ref_message_id;
  81         const char      *add_signoff;
  82         const char      *extra_headers;
  83         const char      *log_reencode;
  84         const char      *subject_prefix;
  85         int             no_inline;
  86         int             show_log_size;
  87
  88         /* Filter by commit log message */
  89         struct grep_opt *grep_filter;
  90
  91         /* special limits */
  92         int skip_count;
  93         int max_count;
  94         unsigned long max_age;
  95         unsigned long min_age;
  96
  97         /* diff info for patches and for paths limiting */
  98         struct diff_options diffopt;
  99         struct diff_options pruning;
 100
 101         struct reflog_walk_info *reflog_info;
 102 };
 103
 104 #define REV_TREE_SAME           0
 105 #define REV_TREE_NEW            1
 106 #define REV_TREE_DIFFERENT      2
 107
 108 /* revision.c */
 109 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 110 volatile show_early_output_fn_t show_early_output;
 111
 112 extern void init_revisions(struct rev_info *revs, const char *prefix);
 113 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 114 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 115
 116 extern int prepare_revision_walk(struct rev_info *revs);
 117 extern struct commit *get_revision(struct rev_info *revs);
 118
 119 extern void mark_parents_uninteresting(struct commit *commit);
 120 extern void mark_tree_uninteresting(struct tree *tree);
 121
 122 struct name_path {
 123         struct name_path *up;
 124         int elem_len;
 125         const char *elem;
 126 };
 127
 128 extern void add_object(struct object *obj,
 129                        struct object_array *p,
 130                        struct name_path *path,
 131                        const char *name);
 132
 133 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 134
 135 extern void add_head_to_pending(struct rev_info *);
 136
 137 enum commit_action {
 138         commit_ignore,
 139         commit_show,
 140         commit_error
 141 };
 142
 143 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
 144
 145 #endif