pretty.hon commit add -p: improve error messages (4bdd6e7)
   1#ifndef PRETTY_H
   2#define PRETTY_H
   3
   4struct commit;
   5
   6/* Commit formats */
   7enum cmit_fmt {
   8        CMIT_FMT_RAW,
   9        CMIT_FMT_MEDIUM,
  10        CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
  11        CMIT_FMT_SHORT,
  12        CMIT_FMT_FULL,
  13        CMIT_FMT_FULLER,
  14        CMIT_FMT_ONELINE,
  15        CMIT_FMT_EMAIL,
  16        CMIT_FMT_MBOXRD,
  17        CMIT_FMT_USERFORMAT,
  18
  19        CMIT_FMT_UNSPECIFIED
  20};
  21
  22struct pretty_print_context {
  23        /*
  24         * Callers should tweak these to change the behavior of pp_* functions.
  25         */
  26        enum cmit_fmt fmt;
  27        int abbrev;
  28        const char *after_subject;
  29        int preserve_subject;
  30        struct date_mode date_mode;
  31        unsigned date_mode_explicit:1;
  32        int print_email_subject;
  33        int expand_tabs_in_log;
  34        int need_8bit_cte;
  35        char *notes_message;
  36        struct reflog_walk_info *reflog_info;
  37        struct rev_info *rev;
  38        const char *output_encoding;
  39        struct string_list *mailmap;
  40        int color;
  41        struct ident_split *from_ident;
  42
  43        /*
  44         * Fields below here are manipulated internally by pp_* functions and
  45         * should not be counted on by callers.
  46         */
  47        struct string_list in_body_headers;
  48        int graph_width;
  49};
  50
  51/* Check whether commit format is mail. */
  52static inline int cmit_fmt_is_mail(enum cmit_fmt fmt)
  53{
  54        return (fmt == CMIT_FMT_EMAIL || fmt == CMIT_FMT_MBOXRD);
  55}
  56
  57struct userformat_want {
  58        unsigned notes:1;
  59};
  60
  61/* Set the flag "w->notes" if there is placeholder %N in "fmt". */
  62void userformat_find_requirements(const char *fmt, struct userformat_want *w);
  63
  64/*
  65 * Shortcut for invoking pretty_print_commit if we do not have any context.
  66 * Context would be set empty except "fmt".
  67 */
  68void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
  69                        struct strbuf *sb);
  70
  71/*
  72 * Get information about user and date from "line", format it and
  73 * put it into "sb".
  74 * Format of "line" must be readable for split_ident_line function.
  75 * The resulting format is "what: name <email> date".
  76 */
  77void pp_user_info(struct pretty_print_context *pp, const char *what,
  78                        struct strbuf *sb, const char *line,
  79                        const char *encoding);
  80
  81/*
  82 * Format title line of commit message taken from "msg_p" and
  83 * put it into "sb".
  84 * First line of "msg_p" is also affected.
  85 */
  86void pp_title_line(struct pretty_print_context *pp, const char **msg_p,
  87                        struct strbuf *sb, const char *encoding,
  88                        int need_8bit_cte);
  89
  90/*
  91 * Get current state of commit message from "msg_p" and continue formatting
  92 * by adding indentation and '>' signs. Put result into "sb".
  93 */
  94void pp_remainder(struct pretty_print_context *pp, const char **msg_p,
  95                        struct strbuf *sb, int indent);
  96
  97/*
  98 * Create a text message about commit using given "format" and "context".
  99 * Put the result to "sb".
 100 * Please use this function for custom formats.
 101 */
 102void format_commit_message(const struct commit *commit,
 103                        const char *format, struct strbuf *sb,
 104                        const struct pretty_print_context *context);
 105
 106/*
 107 * Parse given arguments from "arg", check it for correctness and
 108 * fill struct rev_info.
 109 */
 110void get_commit_format(const char *arg, struct rev_info *);
 111
 112/*
 113 * Make a commit message with all rules from given "pp"
 114 * and put it into "sb".
 115 * Please use this function if you have a context (candidate for "pp").
 116 */
 117void pretty_print_commit(struct pretty_print_context *pp,
 118                        const struct commit *commit,
 119                        struct strbuf *sb);
 120
 121/*
 122 * Change line breaks in "msg" to "line_separator" and put it into "sb".
 123 * Return "msg" itself.
 124 */
 125const char *format_subject(struct strbuf *sb, const char *msg,
 126                        const char *line_separator);
 127
 128/* Check if "cmit_fmt" will produce an empty output. */
 129int commit_format_is_empty(enum cmit_fmt);
 130
 131#endif /* PRETTY_H */