1 files changed, 135 insertions, 0 deletions
diff --git a/pretty.h b/pretty.h
new file mode 100644
index 0000000000..7359d318a9
--- /dev/null
+++ b/pretty.h
@@ -0,0 +1,135 @@
+#ifndef PRETTY_H
+#define PRETTY_H
+
+#include "cache.h"
+#include "string-list.h"
+
+struct commit;
+struct strbuf;
+
+/* Commit formats */
+enum cmit_fmt {
+	CMIT_FMT_RAW,
+	CMIT_FMT_MEDIUM,
+	CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
+	CMIT_FMT_SHORT,
+	CMIT_FMT_FULL,
+	CMIT_FMT_FULLER,
+	CMIT_FMT_ONELINE,
+	CMIT_FMT_EMAIL,
+	CMIT_FMT_MBOXRD,
+	CMIT_FMT_USERFORMAT,
+
+	CMIT_FMT_UNSPECIFIED
+};
+
+struct pretty_print_context {
+	/*
+	 * Callers should tweak these to change the behavior of pp_* functions.
+	 */
+	enum cmit_fmt fmt;
+	int abbrev;
+	const char *after_subject;
+	int preserve_subject;
+	struct date_mode date_mode;
+	unsigned date_mode_explicit:1;
+	int print_email_subject;
+	int expand_tabs_in_log;
+	int need_8bit_cte;
+	char *notes_message;
+	struct reflog_walk_info *reflog_info;
+	struct rev_info *rev;
+	const char *output_encoding;
+	struct string_list *mailmap;
+	int color;
+	struct ident_split *from_ident;
+
+	/*
+	 * Fields below here are manipulated internally by pp_* functions and
+	 * should not be counted on by callers.
+	 */
+	struct string_list in_body_headers;
+	int graph_width;
+};
+
+/* Check whether commit format is mail. */
+static inline int cmit_fmt_is_mail(enum cmit_fmt fmt)
+{
+	return (fmt == CMIT_FMT_EMAIL || fmt == CMIT_FMT_MBOXRD);
+}
+
+struct userformat_want {
+	unsigned notes:1;
+};
+
+/* Set the flag "w->notes" if there is placeholder %N in "fmt". */
+void userformat_find_requirements(const char *fmt, struct userformat_want *w);
+
+/*
+ * Shortcut for invoking pretty_print_commit if we do not have any context.
+ * Context would be set empty except "fmt".
+ */
+void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
+			struct strbuf *sb);
+
+/*
+ * Get information about user and date from "line", format it and
+ * put it into "sb".
+ * Format of "line" must be readable for split_ident_line function.
+ * The resulting format is "what: name <email> date".
+ */
+void pp_user_info(struct pretty_print_context *pp, const char *what,
+			struct strbuf *sb, const char *line,
+			const char *encoding);
+
+/*
+ * Format title line of commit message taken from "msg_p" and
+ * put it into "sb".
+ * First line of "msg_p" is also affected.
+ */
+void pp_title_line(struct pretty_print_context *pp, const char **msg_p,
+			struct strbuf *sb, const char *encoding,
+			int need_8bit_cte);
+
+/*
+ * Get current state of commit message from "msg_p" and continue formatting
+ * by adding indentation and '>' signs. Put result into "sb".
+ */
+void pp_remainder(struct pretty_print_context *pp, const char **msg_p,
+			struct strbuf *sb, int indent);
+
+/*
+ * Create a text message about commit using given "format" and "context".
+ * Put the result to "sb".
+ * Please use this function for custom formats.
+ */
+void format_commit_message(const struct commit *commit,
+			const char *format, struct strbuf *sb,
+			const struct pretty_print_context *context);
+
+/*
+ * Parse given arguments from "arg", check it for correctness and
+ * fill struct rev_info.
+ */
+void get_commit_format(const char *arg, struct rev_info *);
+
+/*
+ * Make a commit message with all rules from given "pp"
+ * and put it into "sb".
+ * Please use this function if you have a context (candidate for "pp").
+ */
+void pretty_print_commit(struct pretty_print_context *pp,
+			const struct commit *commit,
+			struct strbuf *sb);
+
+/*
+ * Change line breaks in "msg" to "line_separator" and put it into "sb".
+ * Return "msg" itself.
+ */
+const char *format_subject(struct strbuf *sb, const char *msg,
+			const char *line_separator);
+
+/* Check if "cmit_fmt" will produce an empty output. */
+int commit_format_is_empty(enum cmit_fmt);
+
+#endif /* PRETTY_H */