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git/trailer.h
Anders Waldenborg 0b691d8685 pretty: add support for separator option in %(trailers)
By default trailer lines are terminated by linebreaks ('\n'). By
specifying the new 'separator' option they will instead be separated by
user provided string and have separator semantics rather than terminator
semantics. The separator string can contain the literal formatting codes
%n and %xNN allowing it to be things that are otherwise hard to type
such as %x00, or comma and end-parenthesis which would break parsing.

E.g:
 $ git log --pretty='%(trailers:key=Reviewed-by,valueonly,separator=%x00)'

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00

106 lines
2.5 KiB
C

#ifndef TRAILER_H
#define TRAILER_H
#include "list.h"
struct strbuf;
enum trailer_where {
WHERE_DEFAULT,
WHERE_END,
WHERE_AFTER,
WHERE_BEFORE,
WHERE_START
};
enum trailer_if_exists {
EXISTS_DEFAULT,
EXISTS_ADD_IF_DIFFERENT_NEIGHBOR,
EXISTS_ADD_IF_DIFFERENT,
EXISTS_ADD,
EXISTS_REPLACE,
EXISTS_DO_NOTHING
};
enum trailer_if_missing {
MISSING_DEFAULT,
MISSING_ADD,
MISSING_DO_NOTHING
};
int trailer_set_where(enum trailer_where *item, const char *value);
int trailer_set_if_exists(enum trailer_if_exists *item, const char *value);
int trailer_set_if_missing(enum trailer_if_missing *item, const char *value);
struct trailer_info {
/*
* True if there is a blank line before the location pointed to by
* trailer_start.
*/
int blank_line_before_trailer;
/*
* Pointers to the start and end of the trailer block found. If there
* is no trailer block found, these 2 pointers point to the end of the
* input string.
*/
const char *trailer_start, *trailer_end;
/*
* Array of trailers found.
*/
char **trailers;
size_t trailer_nr;
};
/*
* A list that represents newly-added trailers, such as those provided
* with the --trailer command line option of git-interpret-trailers.
*/
struct new_trailer_item {
struct list_head list;
const char *text;
enum trailer_where where;
enum trailer_if_exists if_exists;
enum trailer_if_missing if_missing;
};
struct process_trailer_options {
int in_place;
int trim_empty;
int only_trailers;
int only_input;
int unfold;
int no_divider;
int value_only;
const struct strbuf *separator;
int (*filter)(const struct strbuf *, void *);
void *filter_data;
};
#define PROCESS_TRAILER_OPTIONS_INIT {0}
void process_trailers(const char *file,
const struct process_trailer_options *opts,
struct list_head *new_trailer_head);
void trailer_info_get(struct trailer_info *info, const char *str,
const struct process_trailer_options *opts);
void trailer_info_release(struct trailer_info *info);
/*
* Format the trailers from the commit msg "msg" into the strbuf "out".
* Note two caveats about "opts":
*
* - this is primarily a helper for pretty.c, and not
* all of the flags are supported.
*
* - this differs from process_trailers slightly in that we always format
* only the trailer block itself, even if the "only_trailers" option is not
* set.
*/
void format_trailers_from_commit(struct strbuf *out, const char *msg,
const struct process_trailer_options *opts);
#endif /* TRAILER_H */