mirror of
https://github.com/git/git.git
synced 2024-12-02 22:43:44 +08:00
3aa4d81f88
Add best-effort support for patches sent using format=flowed (RFC 3676).
Remove leading spaces ("unstuff"), remove soft line breaks (indicated
by space + newline), but leave the signature separator (dash dash space
newline) alone.
Warn in git am when encountering a format=flowed patch, because any
trailing spaces would most probably be lost, as the sending MUA is
encouraged to remove them when preparing the email.
Provide a test patch formatted by Mozilla Thunderbird 60 using its
default configuration. It reuses the contents of the file mailinfo.c
before and after this patch.
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
130 lines
3.3 KiB
Plaintext
130 lines
3.3 KiB
Plaintext
From: A <author@example.com>
|
|
Subject: [PATCH] mailinfo: support format=flowed
|
|
Message-ID: <aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa@example.com>
|
|
Date: Sat, 25 Aug 2018 22:04:50 +0200
|
|
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101
|
|
Thunderbird/60.0
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=utf-8; format=flowed
|
|
Content-Language: en-US
|
|
Content-Transfer-Encoding: 7bit
|
|
|
|
---
|
|
mailinfo.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
|
|
1 file changed, 62 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/mailinfo.c b/mailinfo.c
|
|
index 3281a37d51..b395adbdf2 100644
|
|
--- a/mailinfo.c
|
|
+++ b/mailinfo.c
|
|
@@ -237,11 +237,22 @@ static int slurp_attr(const char *line, const char
|
|
*name, struct strbuf *attr)
|
|
return 1;
|
|
}
|
|
|
|
+static int has_attr_value(const char *line, const char *name, const
|
|
char *value)
|
|
+{
|
|
+ struct strbuf sb = STRBUF_INIT;
|
|
+ int rc = slurp_attr(line, name, &sb) && !strcasecmp(sb.buf, value);
|
|
+ strbuf_release(&sb);
|
|
+ return rc;
|
|
+}
|
|
+
|
|
static void handle_content_type(struct mailinfo *mi, struct strbuf *line)
|
|
{
|
|
struct strbuf *boundary = xmalloc(sizeof(struct strbuf));
|
|
strbuf_init(boundary, line->len);
|
|
|
|
+ mi->format_flowed = has_attr_value(line->buf, "format=", "flowed");
|
|
+ mi->delsp = has_attr_value(line->buf, "delsp=", "yes");
|
|
+
|
|
if (slurp_attr(line->buf, "boundary=", boundary)) {
|
|
strbuf_insert(boundary, 0, "--", 2);
|
|
if (++mi->content_top >= &mi->content[MAX_BOUNDARIES]) {
|
|
@@ -964,6 +975,52 @@ static int handle_boundary(struct mailinfo *mi,
|
|
struct strbuf *line)
|
|
return 1;
|
|
}
|
|
|
|
+static void handle_filter_flowed(struct mailinfo *mi, struct strbuf *line,
|
|
+ struct strbuf *prev)
|
|
+{
|
|
+ size_t len = line->len;
|
|
+ const char *rest;
|
|
+
|
|
+ if (!mi->format_flowed) {
|
|
+ handle_filter(mi, line);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ if (line->buf[len - 1] == '\n') {
|
|
+ len--;
|
|
+ if (len && line->buf[len - 1] == '\r')
|
|
+ len--;
|
|
+ }
|
|
+
|
|
+ /* Keep signature separator as-is. */
|
|
+ if (skip_prefix(line->buf, "-- ", &rest) && rest - line->buf == len) {
|
|
+ if (prev->len) {
|
|
+ handle_filter(mi, prev);
|
|
+ strbuf_reset(prev);
|
|
+ }
|
|
+ handle_filter(mi, line);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ /* Unstuff space-stuffed line. */
|
|
+ if (len && line->buf[0] == ' ') {
|
|
+ strbuf_remove(line, 0, 1);
|
|
+ len--;
|
|
+ }
|
|
+
|
|
+ /* Save flowed line for later, but without the soft line break. */
|
|
+ if (len && line->buf[len - 1] == ' ') {
|
|
+ strbuf_add(prev, line->buf, len - !!mi->delsp);
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ /* Prepend any previous partial lines */
|
|
+ strbuf_insert(line, 0, prev->buf, prev->len);
|
|
+ strbuf_reset(prev);
|
|
+
|
|
+ handle_filter(mi, line);
|
|
+}
|
|
+
|
|
static void handle_body(struct mailinfo *mi, struct strbuf *line)
|
|
{
|
|
struct strbuf prev = STRBUF_INIT;
|
|
@@ -1012,7 +1069,7 @@ static void handle_body(struct mailinfo *mi,
|
|
struct strbuf *line)
|
|
strbuf_addbuf(&prev, sb);
|
|
break;
|
|
}
|
|
- handle_filter(mi, sb);
|
|
+ handle_filter_flowed(mi, sb, &prev);
|
|
}
|
|
/*
|
|
* The partial chunk is saved in "prev" and will be
|
|
@@ -1022,13 +1079,16 @@ static void handle_body(struct mailinfo *mi,
|
|
struct strbuf *line)
|
|
break;
|
|
}
|
|
default:
|
|
- handle_filter(mi, line);
|
|
+ handle_filter_flowed(mi, line, &prev);
|
|
}
|
|
|
|
if (mi->input_error)
|
|
break;
|
|
} while (!strbuf_getwholeline(line, mi->input, '\n'));
|
|
|
|
+ if (prev.len)
|
|
+ handle_filter(mi, &prev);
|
|
+
|
|
flush_inbody_header_accum(mi);
|
|
|
|
handle_body_out:
|
|
--
|
|
2.18.0
|