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authorJonathan Tan <jonathantanmy@google.com>2016-10-21 10:55:03 -0700
committerJunio C Hamano <gitster@pobox.com>2016-10-21 11:48:35 -0700
commit60ef86a16268bfb1efb28bcb3f1b646bfad1931c (patch)
tree189c2f5488d8c8a92164e077eb091f74cbf94a49 /trailer.c
parentc463a6b28023dd3ad7ad4542147e20c27dbc83d6 (diff)
downloadgit-60ef86a16268bfb1efb28bcb3f1b646bfad1931c.tar.gz
trailer: support values folded to multiple lines
Currently, interpret-trailers requires that a trailer be only on 1 line. For example: a: first line second line would be interpreted as one trailer line followed by one non-trailer line. Make interpret-trailers support RFC 822-style folding, treating those lines as one logical trailer. Signed-off-by: Jonathan Tan <jonathantanmy@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'trailer.c')
-rw-r--r--trailer.c45
1 files changed, 38 insertions, 7 deletions
diff --git a/trailer.c b/trailer.c
index 84105ac181..d19a92cd1c 100644
--- a/trailer.c
+++ b/trailer.c
@@ -619,12 +619,14 @@ static void parse_trailer(struct strbuf *tok, struct strbuf *val,
}
}
-static void add_trailer_item(struct list_head *head, char *tok, char *val)
+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_arg_item(struct list_head *arg_head, char *tok, char *val,
@@ -732,6 +734,14 @@ 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++) {
@@ -752,11 +762,15 @@ static int find_trailer_start(struct strbuf **lines, int count)
const char **p;
int separator_pos;
- if (lines[start]->buf[0] == comment_line_char)
+ 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;
+ non_trailer_lines += possible_continuation_lines;
if (recognized_prefix &&
trailer_lines * 3 >= non_trailer_lines)
return start + 1;
@@ -769,16 +783,18 @@ static int find_trailer_start(struct strbuf **lines, int count)
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);
+ 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) {
@@ -790,8 +806,13 @@ static int find_trailer_start(struct strbuf **lines, int count)
break;
}
}
- } else
+ } else if (isspace(lines[start]->buf[0]))
+ possible_continuation_lines++;
+ else {
non_trailer_lines++;
+ non_trailer_lines += possible_continuation_lines;
+ possible_continuation_lines = 0;
+ }
continue_outer_loop:
;
}
@@ -840,6 +861,7 @@ static int process_input_file(FILE *outfile,
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])
@@ -860,19 +882,28 @@ static int process_input_file(FILE *outfile,
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);
- add_trailer_item(head,
- strbuf_detach(&tok, NULL),
- strbuf_detach(&val, NULL));
+ 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;
}
}