#include "commit.h"
#include "tempfile.h"
#include "trailer.h"
+#include "list.h"
/*
* Copyright (c) 2013, 2014 Christian Couder <chriscool@tuxfamily.org>
*/
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 list_head list;
+ /*
+ * If this is not a trailer line, the line is stored in value
+ * (excluding the terminating newline) and token is NULL.
+ */
+ char *token;
+ char *value;
+};
+
+struct arg_item {
+ struct list_head list;
+ char *token;
+ char *value;
struct conf_info conf;
};
-static struct trailer_item *first_conf_item;
+static LIST_HEAD(conf_head);
static char *separators = ":";
#define TRAILER_ARG_STRING "$ARG"
+static const char *git_generated_prefixes[] = {
+ "Signed-off-by: ",
+ "(cherry picked from commit ",
+ NULL
+};
+
+/* Iterate over the elements of the list. */
+#define list_for_each_dir(pos, head, is_reverse) \
+ for (pos = is_reverse ? (head)->prev : (head)->next; \
+ pos != (head); \
+ pos = is_reverse ? pos->prev : pos->next)
+
static int after_or_end(enum action_where where)
{
return (where == WHERE_AFTER) || (where == WHERE_END);
return len;
}
-static int same_token(struct trailer_item *a, struct trailer_item *b)
+static int same_token(struct trailer_item *a, struct arg_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;
+ size_t a_len, b_len, min_len;
+
+ if (!a->token)
+ return 0;
+
+ a_len = token_len_without_separator(a->token, strlen(a->token));
+ b_len = token_len_without_separator(b->token, strlen(b->token));
+ 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)
+static int same_value(struct trailer_item *a, struct arg_item *b)
{
return !strcasecmp(a->value, b->value);
}
-static int same_trailer(struct trailer_item *a, struct trailer_item *b)
+static int same_trailer(struct trailer_item *a, struct arg_item *b)
{
return same_token(a, b) && same_value(a, b);
}
static void free_trailer_item(struct trailer_item *item)
{
+ free(item->token);
+ free(item->value);
+ free(item);
+}
+
+static void free_arg_item(struct arg_item *item)
+{
free(item->conf.name);
free(item->conf.key);
free(item->conf.command);
- free((char *)item->token);
- free((char *)item->value);
+ free(item->token);
+ free(item->value);
free(item);
}
static void print_tok_val(FILE *outfile, const char *tok, const char *val)
{
- char c = last_non_space_char(tok);
+ char c;
+
+ if (!tok) {
+ fprintf(outfile, "%s\n", val);
+ return;
+ }
+
+ c = last_non_space_char(tok);
if (!c)
return;
if (strchr(separators, c))
fprintf(outfile, "%s%c %s\n", tok, separators[0], val);
}
-static void print_all(FILE *outfile, struct trailer_item *first, int trim_empty)
+static void print_all(FILE *outfile, struct list_head *head, int trim_empty)
{
+ struct list_head *pos;
struct trailer_item *item;
- for (item = first; item; item = item->next) {
+ list_for_each(pos, head) {
+ item = list_entry(pos, struct trailer_item, list);
if (!trim_empty || strlen(item->value) > 0)
print_tok_val(outfile, item->token, item->value);
}
}
-static void update_last(struct trailer_item **last)
-{
- if (*last)
- while ((*last)->next != NULL)
- *last = (*last)->next;
-}
-
-static void update_first(struct trailer_item **first)
+static struct trailer_item *trailer_from_arg(struct arg_item *arg_tok)
{
- if (*first)
- while ((*first)->previous != NULL)
- *first = (*first)->previous;
+ struct trailer_item *new = xcalloc(sizeof(*new), 1);
+ new->token = arg_tok->token;
+ new->value = arg_tok->value;
+ arg_tok->token = arg_tok->value = NULL;
+ free_arg_item(arg_tok);
+ return new;
}
static void add_arg_to_input_list(struct trailer_item *on_tok,
- struct trailer_item *arg_tok,
- struct trailer_item **first,
- struct trailer_item **last)
-{
- if (after_or_end(arg_tok->conf.where)) {
- arg_tok->next = on_tok->next;
- on_tok->next = arg_tok;
- arg_tok->previous = on_tok;
- if (arg_tok->next)
- arg_tok->next->previous = arg_tok;
- update_last(last);
- } else {
- arg_tok->previous = on_tok->previous;
- on_tok->previous = arg_tok;
- arg_tok->next = on_tok;
- if (arg_tok->previous)
- arg_tok->previous->next = arg_tok;
- update_first(first);
- }
+ struct arg_item *arg_tok)
+{
+ int aoe = after_or_end(arg_tok->conf.where);
+ struct trailer_item *to_add = trailer_from_arg(arg_tok);
+ if (aoe)
+ list_add(&to_add->list, &on_tok->list);
+ else
+ list_add_tail(&to_add->list, &on_tok->list);
}
static int check_if_different(struct trailer_item *in_tok,
- struct trailer_item *arg_tok,
- int check_all)
+ struct arg_item *arg_tok,
+ int check_all,
+ struct list_head *head)
{
enum action_where where = arg_tok->conf.where;
+ struct list_head *next_head;
do {
- if (!in_tok)
- return 1;
if (same_trailer(in_tok, arg_tok))
return 0;
/*
* if we want to add a trailer after another one,
* we have to check those before this one
*/
- in_tok = after_or_end(where) ? in_tok->previous : in_tok->next;
+ next_head = after_or_end(where) ? in_tok->list.prev
+ : in_tok->list.next;
+ if (next_head == head)
+ break;
+ in_tok = list_entry(next_head, struct trailer_item, list);
} while (check_all);
return 1;
}
-static void remove_from_list(struct trailer_item *item,
- struct trailer_item **first,
- struct trailer_item **last)
-{
- struct trailer_item *next = item->next;
- struct trailer_item *previous = item->previous;
-
- if (next) {
- item->next->previous = previous;
- item->next = NULL;
- } else if (last)
- *last = previous;
-
- if (previous) {
- item->previous->next = next;
- item->previous = NULL;
- } else if (first)
- *first = next;
-}
-
-static struct trailer_item *remove_first(struct trailer_item **first)
-{
- struct trailer_item *item = *first;
- *first = item->next;
- if (item->next) {
- item->next->previous = NULL;
- item->next = NULL;
- }
- return item;
-}
-
-static const char *apply_command(const char *command, const char *arg)
+static char *apply_command(const char *command, const char *arg)
{
struct strbuf cmd = STRBUF_INIT;
struct strbuf buf = STRBUF_INIT;
struct child_process cp = CHILD_PROCESS_INIT;
const char *argv[] = {NULL, NULL};
- const char *result;
+ char *result;
strbuf_addstr(&cmd, command);
if (arg)
return result;
}
-static void apply_item_command(struct trailer_item *in_tok, struct trailer_item *arg_tok)
+static void apply_item_command(struct trailer_item *in_tok, struct arg_item *arg_tok)
{
if (arg_tok->conf.command) {
const char *arg;
}
static void apply_arg_if_exists(struct trailer_item *in_tok,
- struct trailer_item *arg_tok,
+ struct arg_item *arg_tok,
struct trailer_item *on_tok,
- struct trailer_item **in_tok_first,
- struct trailer_item **in_tok_last)
+ struct list_head *head)
{
switch (arg_tok->conf.if_exists) {
case EXISTS_DO_NOTHING:
- free_trailer_item(arg_tok);
+ free_arg_item(arg_tok);
break;
case EXISTS_REPLACE:
apply_item_command(in_tok, arg_tok);
- add_arg_to_input_list(on_tok, arg_tok,
- in_tok_first, in_tok_last);
- remove_from_list(in_tok, in_tok_first, in_tok_last);
+ add_arg_to_input_list(on_tok, arg_tok);
+ list_del(&in_tok->list);
free_trailer_item(in_tok);
break;
case EXISTS_ADD:
apply_item_command(in_tok, arg_tok);
- add_arg_to_input_list(on_tok, arg_tok,
- in_tok_first, in_tok_last);
+ add_arg_to_input_list(on_tok, arg_tok);
break;
case EXISTS_ADD_IF_DIFFERENT:
apply_item_command(in_tok, arg_tok);
- if (check_if_different(in_tok, arg_tok, 1))
- add_arg_to_input_list(on_tok, arg_tok,
- in_tok_first, in_tok_last);
+ if (check_if_different(in_tok, arg_tok, 1, head))
+ add_arg_to_input_list(on_tok, arg_tok);
else
- free_trailer_item(arg_tok);
+ free_arg_item(arg_tok);
break;
case EXISTS_ADD_IF_DIFFERENT_NEIGHBOR:
apply_item_command(in_tok, arg_tok);
- if (check_if_different(on_tok, arg_tok, 0))
- add_arg_to_input_list(on_tok, arg_tok,
- in_tok_first, in_tok_last);
+ if (check_if_different(on_tok, arg_tok, 0, head))
+ add_arg_to_input_list(on_tok, arg_tok);
else
- free_trailer_item(arg_tok);
+ free_arg_item(arg_tok);
break;
}
}
-static void apply_arg_if_missing(struct trailer_item **in_tok_first,
- struct trailer_item **in_tok_last,
- struct trailer_item *arg_tok)
+static void apply_arg_if_missing(struct list_head *head,
+ struct arg_item *arg_tok)
{
- struct trailer_item **in_tok;
enum action_where where;
+ struct trailer_item *to_add;
switch (arg_tok->conf.if_missing) {
case MISSING_DO_NOTHING:
- free_trailer_item(arg_tok);
+ free_arg_item(arg_tok);
break;
case MISSING_ADD:
where = arg_tok->conf.where;
- in_tok = after_or_end(where) ? in_tok_last : in_tok_first;
apply_item_command(NULL, arg_tok);
- if (*in_tok) {
- add_arg_to_input_list(*in_tok, arg_tok,
- in_tok_first, in_tok_last);
- } else {
- *in_tok_first = arg_tok;
- *in_tok_last = arg_tok;
- }
- break;
+ to_add = trailer_from_arg(arg_tok);
+ if (after_or_end(where))
+ list_add_tail(&to_add->list, head);
+ else
+ list_add(&to_add->list, head);
}
}
-static int find_same_and_apply_arg(struct trailer_item **in_tok_first,
- struct trailer_item **in_tok_last,
- struct trailer_item *arg_tok)
+static int find_same_and_apply_arg(struct list_head *head,
+ struct arg_item *arg_tok)
{
+ struct list_head *pos;
struct trailer_item *in_tok;
struct trailer_item *on_tok;
- struct trailer_item *following_tok;
enum action_where where = arg_tok->conf.where;
int middle = (where == WHERE_AFTER) || (where == WHERE_BEFORE);
int backwards = after_or_end(where);
- struct trailer_item *start_tok = backwards ? *in_tok_last : *in_tok_first;
+ struct trailer_item *start_tok;
+
+ if (list_empty(head))
+ return 0;
- for (in_tok = start_tok; in_tok; in_tok = following_tok) {
- following_tok = backwards ? in_tok->previous : in_tok->next;
+ start_tok = list_entry(backwards ? head->prev : head->next,
+ struct trailer_item,
+ list);
+
+ list_for_each_dir(pos, head, backwards) {
+ in_tok = list_entry(pos, struct trailer_item, list);
if (!same_token(in_tok, arg_tok))
continue;
on_tok = middle ? in_tok : start_tok;
- apply_arg_if_exists(in_tok, arg_tok, on_tok,
- in_tok_first, in_tok_last);
+ apply_arg_if_exists(in_tok, arg_tok, on_tok, head);
return 1;
}
return 0;
}
-static void process_trailers_lists(struct trailer_item **in_tok_first,
- struct trailer_item **in_tok_last,
- struct trailer_item **arg_tok_first)
+static void process_trailers_lists(struct list_head *head,
+ struct list_head *arg_head)
{
- struct trailer_item *arg_tok;
- struct trailer_item *next_arg;
-
- if (!*arg_tok_first)
- return;
+ struct list_head *pos, *p;
+ struct arg_item *arg_tok;
- for (arg_tok = *arg_tok_first; arg_tok; arg_tok = next_arg) {
+ list_for_each_safe(pos, p, arg_head) {
int applied = 0;
+ arg_tok = list_entry(pos, struct arg_item, list);
- next_arg = arg_tok->next;
- remove_from_list(arg_tok, arg_tok_first, NULL);
+ list_del(pos);
- applied = find_same_and_apply_arg(in_tok_first,
- in_tok_last,
- arg_tok);
+ applied = find_same_and_apply_arg(head, arg_tok);
if (!applied)
- apply_arg_if_missing(in_tok_first,
- in_tok_last,
- arg_tok);
+ apply_arg_if_missing(head, arg_tok);
}
}
return 0;
}
-static void duplicate_conf(struct conf_info *dst, struct conf_info *src)
+static void duplicate_conf(struct conf_info *dst, const struct conf_info *src)
{
*dst = *src;
dst->name = xstrdup_or_null(src->name);
dst->command = xstrdup_or_null(src->command);
}
-static struct trailer_item *get_conf_item(const char *name)
+static struct arg_item *get_conf_item(const char *name)
{
- struct trailer_item *item;
- struct trailer_item *previous;
+ struct list_head *pos;
+ struct arg_item *item;
/* Look up item with same name */
- for (previous = NULL, item = first_conf_item;
- item;
- previous = item, item = item->next) {
+ list_for_each(pos, &conf_head) {
+ item = list_entry(pos, struct arg_item, list);
if (!strcasecmp(item->conf.name, name))
return item;
}
/* Item does not already exists, create it */
- item = xcalloc(sizeof(struct trailer_item), 1);
+ item = xcalloc(sizeof(*item), 1);
duplicate_conf(&item->conf, &default_conf_info);
item->conf.name = xstrdup(name);
- if (!previous)
- first_conf_item = item;
- else {
- previous->next = item;
- item->previous = previous;
- }
+ list_add_tail(&item->list, &conf_head);
return item;
}
static int git_trailer_config(const char *conf_key, const char *value, void *cb)
{
const char *trailer_item, *variable_name;
- struct trailer_item *item;
+ struct arg_item *item;
struct conf_info *conf;
char *name = NULL;
enum trailer_info_type type;
return 0;
}
-static int parse_trailer(struct strbuf *tok, struct strbuf *val, const char *trailer)
-{
- size_t len;
- struct strbuf seps = STRBUF_INIT;
- strbuf_addstr(&seps, separators);
- strbuf_addch(&seps, '=');
- len = strcspn(trailer, seps.buf);
- strbuf_release(&seps);
- if (len == 0) {
- int l = strlen(trailer);
- while (l > 0 && isspace(trailer[l - 1]))
- l--;
- return error(_("empty trailer token in trailer '%.*s'"), l, trailer);
- }
- if (len < strlen(trailer)) {
- strbuf_add(tok, trailer, len);
- strbuf_trim(tok);
- strbuf_addstr(val, trailer + len + 1);
- strbuf_trim(val);
- } else {
- strbuf_addstr(tok, trailer);
- strbuf_trim(tok);
- }
- return 0;
-}
-
-static const char *token_from_item(struct trailer_item *item, char *tok)
+static const char *token_from_item(struct arg_item *item, char *tok)
{
if (item->conf.key)
return item->conf.key;
return item->conf.name;
}
-static struct trailer_item *new_trailer_item(struct trailer_item *conf_item,
- char *tok, char *val)
-{
- struct trailer_item *new = xcalloc(sizeof(*new), 1);
- new->value = val ? val : xstrdup("");
-
- if (conf_item) {
- duplicate_conf(&new->conf, &conf_item->conf);
- new->token = xstrdup(token_from_item(conf_item, tok));
- free(tok);
- } else {
- duplicate_conf(&new->conf, &default_conf_info);
- new->token = tok;
- }
-
- return new;
-}
-
-static int token_matches_item(const char *tok, struct trailer_item *item, int tok_len)
+static int token_matches_item(const char *tok, struct arg_item *item, int tok_len)
{
if (!strncasecmp(tok, item->conf.name, tok_len))
return 1;
return item->conf.key ? !strncasecmp(tok, item->conf.key, tok_len) : 0;
}
-static struct trailer_item *create_trailer_item(const char *string)
+/*
+ * Return the location of the first separator in line, or -1 if there is no
+ * separator.
+ */
+static int find_separator(const char *line, const char *separators)
{
- struct strbuf tok = STRBUF_INIT;
- struct strbuf val = STRBUF_INIT;
- struct trailer_item *item;
- int tok_len;
+ int loc = strcspn(line, separators);
+ if (!line[loc])
+ return -1;
+ return loc;
+}
- if (parse_trailer(&tok, &val, string))
- return NULL;
+/*
+ * Obtain the token, value, and conf from the given trailer.
+ *
+ * separator_pos must not be 0, since the token cannot be an empty string.
+ *
+ * If separator_pos is -1, interpret the whole trailer as a token.
+ */
+static void parse_trailer(struct strbuf *tok, struct strbuf *val,
+ const struct conf_info **conf, const char *trailer,
+ int separator_pos)
+{
+ struct arg_item *item;
+ int tok_len;
+ struct list_head *pos;
- tok_len = token_len_without_separator(tok.buf, tok.len);
+ if (separator_pos != -1) {
+ strbuf_add(tok, trailer, separator_pos);
+ strbuf_trim(tok);
+ strbuf_addstr(val, trailer + separator_pos + 1);
+ strbuf_trim(val);
+ } else {
+ strbuf_addstr(tok, trailer);
+ strbuf_trim(tok);
+ }
/* Lookup if the token matches something in the config */
- for (item = first_conf_item; item; item = item->next) {
- if (token_matches_item(tok.buf, item, tok_len))
- return new_trailer_item(item,
- strbuf_detach(&tok, NULL),
- strbuf_detach(&val, NULL));
+ tok_len = token_len_without_separator(tok->buf, tok->len);
+ if (conf)
+ *conf = &default_conf_info;
+ list_for_each(pos, &conf_head) {
+ item = list_entry(pos, struct arg_item, list);
+ if (token_matches_item(tok->buf, item, tok_len)) {
+ char *tok_buf = strbuf_detach(tok, NULL);
+ if (conf)
+ *conf = &item->conf;
+ strbuf_addstr(tok, token_from_item(item, tok_buf));
+ free(tok_buf);
+ break;
+ }
}
+}
- return new_trailer_item(NULL,
- strbuf_detach(&tok, NULL),
- strbuf_detach(&val, NULL));
+static struct trailer_item *add_trailer_item(struct list_head *head, char *tok,
+ char *val)
+{
+ struct trailer_item *new = xcalloc(sizeof(*new), 1);
+ new->token = tok;
+ new->value = val;
+ list_add_tail(&new->list, head);
+ return new;
}
-static void add_trailer_item(struct trailer_item **first,
- struct trailer_item **last,
- struct trailer_item *new)
+static void add_arg_item(struct list_head *arg_head, char *tok, char *val,
+ const struct conf_info *conf)
{
- if (!new)
- return;
- if (!*last) {
- *first = new;
- *last = new;
- } else {
- (*last)->next = new;
- new->previous = *last;
- *last = new;
- }
+ struct arg_item *new = xcalloc(sizeof(*new), 1);
+ new->token = tok;
+ new->value = val;
+ duplicate_conf(&new->conf, conf);
+ list_add_tail(&new->list, arg_head);
}
-static struct trailer_item *process_command_line_args(struct string_list *trailers)
+static void process_command_line_args(struct list_head *arg_head,
+ struct string_list *trailers)
{
- struct trailer_item *arg_tok_first = NULL;
- struct trailer_item *arg_tok_last = NULL;
struct string_list_item *tr;
- struct trailer_item *item;
+ struct arg_item *item;
+ struct strbuf tok = STRBUF_INIT;
+ struct strbuf val = STRBUF_INIT;
+ const struct conf_info *conf;
+ struct list_head *pos;
- /* Add a trailer item for each configured trailer with a command */
- for (item = first_conf_item; item; item = item->next) {
- if (item->conf.command) {
- struct trailer_item *new = new_trailer_item(item, NULL, NULL);
- add_trailer_item(&arg_tok_first, &arg_tok_last, new);
- }
+ /*
+ * In command-line arguments, '=' is accepted (in addition to the
+ * separators that are defined).
+ */
+ char *cl_separators = xstrfmt("=%s", separators);
+
+ /* Add an arg item for each configured trailer with a command */
+ list_for_each(pos, &conf_head) {
+ item = list_entry(pos, struct arg_item, list);
+ if (item->conf.command)
+ add_arg_item(arg_head,
+ xstrdup(token_from_item(item, NULL)),
+ xstrdup(""),
+ &item->conf);
}
- /* Add a trailer item for each trailer on the command line */
+ /* Add an arg item for each trailer on the command line */
for_each_string_list_item(tr, trailers) {
- struct trailer_item *new = create_trailer_item(tr->string);
- add_trailer_item(&arg_tok_first, &arg_tok_last, new);
+ int separator_pos = find_separator(tr->string, cl_separators);
+ if (separator_pos == 0) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addstr(&sb, tr->string);
+ strbuf_trim(&sb);
+ error(_("empty trailer token in trailer '%.*s'"),
+ (int) sb.len, sb.buf);
+ strbuf_release(&sb);
+ } else {
+ parse_trailer(&tok, &val, &conf, tr->string,
+ separator_pos);
+ add_arg_item(arg_head,
+ strbuf_detach(&tok, NULL),
+ strbuf_detach(&val, NULL),
+ conf);
+ }
}
- return arg_tok_first;
+ free(cl_separators);
}
static struct strbuf **read_input_file(const char *file)
static int find_trailer_start(struct strbuf **lines, int count)
{
int start, end_of_title, only_spaces = 1;
+ int recognized_prefix = 0, trailer_lines = 0, non_trailer_lines = 0;
+ /*
+ * Number of possible continuation lines encountered. This will be
+ * reset to 0 if we encounter a trailer (since those lines are to be
+ * considered continuations of that trailer), and added to
+ * non_trailer_lines if we encounter a non-trailer (since those lines
+ * are to be considered non-trailers).
+ */
+ int possible_continuation_lines = 0;
/* The first paragraph is the title and cannot be trailers */
for (start = 0; start < count; start++) {
end_of_title = start;
/*
- * Get the start of the trailers by looking starting from the end
- * for a line with only spaces before lines with one separator.
+ * Get the start of the trailers by looking starting from the end for a
+ * blank line before a set of non-blank lines that (i) are all
+ * trailers, or (ii) contains at least one Git-generated trailer and
+ * consists of at least 25% trailers.
*/
for (start = count - 1; start >= end_of_title; start--) {
- if (lines[start]->buf[0] == comment_line_char)
+ const char **p;
+ int separator_pos;
+
+ if (lines[start]->buf[0] == comment_line_char) {
+ non_trailer_lines += possible_continuation_lines;
+ possible_continuation_lines = 0;
continue;
+ }
if (contains_only_spaces(lines[start]->buf)) {
if (only_spaces)
continue;
- return start + 1;
+ non_trailer_lines += possible_continuation_lines;
+ if (recognized_prefix &&
+ trailer_lines * 3 >= non_trailer_lines)
+ return start + 1;
+ if (trailer_lines && !non_trailer_lines)
+ return start + 1;
+ return count;
}
- if (strcspn(lines[start]->buf, separators) < lines[start]->len) {
- if (only_spaces)
- only_spaces = 0;
- continue;
+ only_spaces = 0;
+
+ for (p = git_generated_prefixes; *p; p++) {
+ if (starts_with(lines[start]->buf, *p)) {
+ trailer_lines++;
+ possible_continuation_lines = 0;
+ recognized_prefix = 1;
+ goto continue_outer_loop;
+ }
+ }
+
+ separator_pos = find_separator(lines[start]->buf, separators);
+ if (separator_pos >= 1 && !isspace(lines[start]->buf[0])) {
+ struct list_head *pos;
+
+ trailer_lines++;
+ possible_continuation_lines = 0;
+ if (recognized_prefix)
+ continue;
+ list_for_each(pos, &conf_head) {
+ struct arg_item *item;
+ item = list_entry(pos, struct arg_item, list);
+ if (token_matches_item(lines[start]->buf, item,
+ separator_pos)) {
+ recognized_prefix = 1;
+ break;
+ }
+ }
+ } else if (isspace(lines[start]->buf[0]))
+ possible_continuation_lines++;
+ else {
+ non_trailer_lines++;
+ non_trailer_lines += possible_continuation_lines;
+ possible_continuation_lines = 0;
}
- return count;
+continue_outer_loop:
+ ;
}
- return only_spaces ? count : 0;
+ return count;
}
/* Get the index of the end of the trailers */
static int process_input_file(FILE *outfile,
struct strbuf **lines,
- struct trailer_item **in_tok_first,
- struct trailer_item **in_tok_last)
+ struct list_head *head)
{
int count = 0;
int patch_start, trailer_start, trailer_end, i;
+ struct strbuf tok = STRBUF_INIT;
+ struct strbuf val = STRBUF_INIT;
+ struct trailer_item *last = NULL;
/* Get the line count */
while (lines[count])
/* Parse trailer lines */
for (i = trailer_start; i < trailer_end; i++) {
- if (lines[i]->buf[0] != comment_line_char) {
- struct trailer_item *new = create_trailer_item(lines[i]->buf);
- add_trailer_item(in_tok_first, in_tok_last, new);
+ int separator_pos;
+ if (lines[i]->buf[0] == comment_line_char)
+ continue;
+ if (last && isspace(lines[i]->buf[0])) {
+ struct strbuf sb = STRBUF_INIT;
+ strbuf_addf(&sb, "%s\n%s", last->value, lines[i]->buf);
+ strbuf_strip_suffix(&sb, "\n");
+ free(last->value);
+ last->value = strbuf_detach(&sb, NULL);
+ continue;
+ }
+ separator_pos = find_separator(lines[i]->buf, separators);
+ if (separator_pos >= 1) {
+ parse_trailer(&tok, &val, NULL, lines[i]->buf,
+ separator_pos);
+ last = add_trailer_item(head,
+ strbuf_detach(&tok, NULL),
+ strbuf_detach(&val, NULL));
+ } else {
+ strbuf_addbuf(&val, lines[i]);
+ strbuf_strip_suffix(&val, "\n");
+ add_trailer_item(head,
+ NULL,
+ strbuf_detach(&val, NULL));
+ last = NULL;
}
}
return trailer_end;
}
-static void free_all(struct trailer_item **first)
+static void free_all(struct list_head *head)
{
- while (*first) {
- struct trailer_item *item = remove_first(first);
- free_trailer_item(item);
+ struct list_head *pos, *p;
+ list_for_each_safe(pos, p, head) {
+ list_del(pos);
+ free_trailer_item(list_entry(pos, struct trailer_item, list));
}
}
void process_trailers(const char *file, int in_place, int trim_empty, struct string_list *trailers)
{
- struct trailer_item *in_tok_first = NULL;
- struct trailer_item *in_tok_last = NULL;
- struct trailer_item *arg_tok_first;
+ LIST_HEAD(head);
+ LIST_HEAD(arg_head);
struct strbuf **lines;
int trailer_end;
FILE *outfile = stdout;
outfile = create_in_place_tempfile(file);
/* Print the lines before the trailers */
- trailer_end = process_input_file(outfile, lines, &in_tok_first, &in_tok_last);
+ trailer_end = process_input_file(outfile, lines, &head);
- arg_tok_first = process_command_line_args(trailers);
+ process_command_line_args(&arg_head, trailers);
- process_trailers_lists(&in_tok_first, &in_tok_last, &arg_tok_first);
+ process_trailers_lists(&head, &arg_head);
- print_all(outfile, in_tok_first, trim_empty);
+ print_all(outfile, &head, trim_empty);
- free_all(&in_tok_first);
+ free_all(&head);
/* Print the lines after the trailers as is */
print_lines(outfile, lines, trailer_end, INT_MAX);
OSDN Git Service
