format: create docs for pretty.h

Write some docs for functions in pretty.h. Take it as a first draft, they would be changed later. Signed-off-by: Olga Telezhnaia <olyatelezhnaya@gmail.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Mentored by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Olga Telezhnaya committed Dec 12, 2017 at 08:55 UTC d0e63260261f166b1e19ae4050404a9a71934dbe
1 file changed +44
pretty.h
+44
@@ -48,6 +48,7 @@ struct pretty_print_context {
48 int graph_width;
49 };
50
51 +/* Check whether commit format is mail. */
52 static inline int cmit_fmt_is_mail(enum cmit_fmt fmt)
53 {
54 return (fmt == CMIT_FMT_EMAIL || fmt == CMIT_FMT_MBOXRD);
@@ -57,31 +58,74 @@ struct userformat_want {
58 unsigned notes:1;
59 };
60
61 +/* Set the flag "w->notes" if there is placeholder %N in "fmt". */
62 void 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 + */
68 void 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 + */
77 void 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 + */
86 void 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 + */
94 void 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 + */
102 void 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 + */
110 void 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 + */
117 void 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 + */
125 const 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. */
129 int commit_format_is_empty(enum cmit_fmt);
130
131 #endif /* PRETTY_H */