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#include "cache.h"
/*
* Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
*/
enum action_where { WHERE_END, WHERE_AFTER, WHERE_BEFORE, WHERE_START };
enum action_if_exists { EXISTS_ADD_IF_DIFFERENT_NEIGHBOR, EXISTS_ADD_IF_DIFFERENT,
EXISTS_ADD, EXISTS_REPLACE, EXISTS_DO_NOTHING };
enum action_if_missing { MISSING_ADD, MISSING_DO_NOTHING };
struct conf_info {
char *name;
char *key;
char *command;
enum action_where where;
enum action_if_exists if_exists;
enum action_if_missing if_missing;
};
static struct conf_info default_conf_info;
struct trailer_item {
struct trailer_item *previous;
struct trailer_item *next;
const char *token;
const char *value;
struct conf_info conf;
};
static struct trailer_item *first_conf_item;
static char *separators = ":";
static int after_or_end(enum action_where where)
{
return (where == WHERE_AFTER) || (where == WHERE_END);
}
/*
* Return the length of the string not including any final
* punctuation. E.g., the input "Signed-off-by:" would return
* 13, stripping the trailing punctuation but retaining
* internal punctuation.
*/
static size_t token_len_without_separator(const char *token, size_t len)
{
while (len > 0 && !isalnum(token[len - 1]))
len--;
return len;
}
static int same_token(struct trailer_item *a, struct trailer_item *b)
{
size_t a_len = token_len_without_separator(a->token, strlen(a->token));
size_t b_len = token_len_without_separator(b->token, strlen(b->token));
size_t min_len = (a_len > b_len) ? b_len : a_len;
return !strncasecmp(a->token, b->token, min_len);
}
static int same_value(struct trailer_item *a, struct trailer_item *b)
{
return !strcasecmp(a->value, b->value);
}
static int same_trailer(struct trailer_item *a, struct trailer_item *b)
{
return same_token(a, b) && same_value(a, b);
}
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