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   1 #ifndef REVISION_H
   2 #define REVISION_H
   3
   4 #include "parse-options.h"
   5 #include "grep.h"
   6
   7 #define SEEN            (1u<<0)
   8 #define UNINTERESTING   (1u<<1)
   9 #define TREESAME        (1u<<2)
  10 #define SHOWN           (1u<<3)
  11 #define TMP_MARK        (1u<<4) /* for isolated cases; clean after use */
  12 #define BOUNDARY        (1u<<5)
  13 #define CHILD_SHOWN     (1u<<6)
  14 #define ADDED           (1u<<7) /* Parents already parsed and added? */
  15 #define SYMMETRIC_LEFT  (1u<<8)
  16 #define ALL_REV_FLAGS   ((1u<<9)-1)
  17
  18 struct rev_info;
  19 struct log_info;
  20
  21 struct rev_info {
  22         /* Starting list */
  23         struct commit_list *commits;
  24         struct object_array pending;
  25
  26         /* Parents of shown commits */
  27         struct object_array boundary_commits;
  28
  29         /* Basic information */
  30         const char *prefix;
  31         const char *def;
  32         void *prune_data;
  33         unsigned int early_output;
  34
  35         /* Traversal flags */
  36         unsigned int    dense:1,
  37                         prune:1,
  38                         no_merges:1,
  39                         merges_only:1,
  40                         no_walk:1,
  41                         show_all:1,
  42                         remove_empty_trees:1,
  43                         simplify_history:1,
  44                         lifo:1,
  45                         topo_order:1,
  46                         simplify_merges:1,
  47                         simplify_by_decoration:1,
  48                         tag_objects:1,
  49                         tree_objects:1,
  50                         blob_objects:1,
  51                         edge_hint:1,
  52                         limited:1,
  53                         unpacked:1,
  54                         boundary:2,
  55                         left_right:1,
  56                         rewrite_parents:1,
  57                         print_parents:1,
  58                         show_source:1,
  59                         show_decorations:1,
  60                         reverse:1,
  61                         reverse_output_stage:1,
  62                         cherry_pick:1,
  63                         first_parent_only:1;
  64
  65         /* Diff flags */
  66         unsigned int    diff:1,
  67                         full_diff:1,
  68                         show_root_diff:1,
  69                         no_commit_id:1,
  70                         verbose_header:1,
  71                         ignore_merges:1,
  72                         combine_merges:1,
  73                         dense_combined_merges:1,
  74                         always_show_header:1;
  75
  76         /* Format info */
  77         unsigned int    shown_one:1,
  78                         show_merge:1,
  79                         abbrev_commit:1,
  80                         use_terminator:1,
  81                         missing_newline:1;
  82         enum date_mode date_mode;
  83
  84         unsigned int    abbrev;
  85         enum cmit_fmt   commit_format;
  86         struct log_info *loginfo;
  87         int             nr, total;
  88         const char      *mime_boundary;
  89         const char      *patch_suffix;
  90         int             numbered_files;
  91         char            *message_id;
  92         struct string_list *ref_message_ids;
  93         const char      *add_signoff;
  94         const char      *extra_headers;
  95         const char      *log_reencode;
  96         const char      *subject_prefix;
  97         int             no_inline;
  98         int             show_log_size;
  99
 100         /* Filter by commit log message */
 101         struct grep_opt grep_filter;
 102
 103         /* Display history graph */
 104         struct git_graph *graph;
 105
 106         /* special limits */
 107         int skip_count;
 108         int max_count;
 109         unsigned long max_age;
 110         unsigned long min_age;
 111
 112         /* diff info for patches and for paths limiting */
 113         struct diff_options diffopt;
 114         struct diff_options pruning;
 115
 116         struct reflog_walk_info *reflog_info;
 117         struct decoration children;
 118         struct decoration merge_simplification;
 119 };
 120
 121 #define REV_TREE_SAME           0
 122 #define REV_TREE_NEW            1       /* Only new files */
 123 #define REV_TREE_OLD            2       /* Only files removed */
 124 #define REV_TREE_DIFFERENT      3       /* Mixed changes */
 125
 126 /* revision.c */
 127 void read_revisions_from_stdin(struct rev_info *revs);
 128
 129 typedef void (*show_early_output_fn_t)(struct rev_info *, struct commit_list *);
 130 extern volatile show_early_output_fn_t show_early_output;
 131
 132 extern void init_revisions(struct rev_info *revs, const char *prefix);
 133 extern int setup_revisions(int argc, const char **argv, struct rev_info *revs, const char *def);
 134 extern void parse_revision_opt(struct rev_info *revs, struct parse_opt_ctx_t *ctx,
 135                                  const struct option *options,
 136                                  const char * const usagestr[]);
 137 extern int handle_revision_arg(const char *arg, struct rev_info *revs,int flags,int cant_be_filename);
 138
 139 extern int prepare_revision_walk(struct rev_info *revs);
 140 extern struct commit *get_revision(struct rev_info *revs);
 141
 142 extern void mark_parents_uninteresting(struct commit *commit);
 143 extern void mark_tree_uninteresting(struct tree *tree);
 144
 145 struct name_path {
 146         struct name_path *up;
 147         int elem_len;
 148         const char *elem;
 149 };
 150
 151 char *path_name(const struct name_path *path, const char *name);
 152
 153 extern void add_object(struct object *obj,
 154                        struct object_array *p,
 155                        struct name_path *path,
 156                        const char *name);
 157
 158 extern void add_pending_object(struct rev_info *revs, struct object *obj, const char *name);
 159
 160 extern void add_head_to_pending(struct rev_info *);
 161
 162 enum commit_action {
 163         commit_ignore,
 164         commit_show,
 165         commit_error
 166 };
 167
 168 extern enum commit_action simplify_commit(struct rev_info *revs, struct commit *commit);
 169
 170 #endif