Sync with v1.8.1.4

diff --git a/builtin/mailinfo.c b/builtin/mailinfo.c
index 2405040ad3c03495ad808c06835d8496bf1fba53..24a772d8e1b7355a58088d784fdc18cd54302b7d 100644 (file)
--- a/builtin/mailinfo.c
+++ b/builtin/mailinfo.c
@@ -157,10 +157,9 @@ static int slurp_attr(const char *line, const char *name, struct strbuf *attr)
        const char *ends, *ap = strcasestr(line, name);
        size_t sz;
 
-       if (!ap) {
-               strbuf_setlen(attr, 0);
+       strbuf_setlen(attr, 0);
+       if (!ap)
                return 0;
-       }
        ap += strlen(name);
        if (*ap == '"') {
                ap++;
@@ -227,7 +226,9 @@ static void cleanup_subject(struct strbuf *subject)
                case 'r': case 'R':
                        if (subject->len <= at + 3)
                                break;
-                       if (!memcmp(subject->buf + at + 1, "e:", 2)) {
+                       if ((subject->buf[at + 1] == 'e' ||
+                            subject->buf[at + 1] == 'E') &&
+                           subject->buf[at + 2] == ':') {
                                strbuf_remove(subject, at, 3);
                                continue;
                        }
@@ -245,8 +246,17 @@ static void cleanup_subject(struct strbuf *subject)
                            (7 <= remove &&
                             memmem(subject->buf + at, remove, "PATCH", 5)))
                                strbuf_remove(subject, at, remove);
-                       else
+                       else {
                                at += remove;
+                               /*
+                                * If the input had a space after the ], keep
+                                * it.  We don't bother with finding the end of
+                                * the space, since we later normalize it
+                                * anyway.
+                                */
+                               if (isspace(subject->buf[at]))
+                                       at += 1;
+                       }
                        continue;
                }
                break;
@@ -467,37 +477,14 @@ static struct strbuf *decode_b_segment(const struct strbuf *b_seg)
        return out;
 }
 
-/*
- * When there is no known charset, guess.
- *
- * Right now we assume that if the target is UTF-8 (the default),
- * and it already looks like UTF-8 (which includes US-ASCII as its
- * subset, of course) then that is what it is and there is nothing
- * to do.
- *
- * Otherwise, we default to assuming it is Latin1 for historical
- * reasons.
- */
-static const char *guess_charset(const struct strbuf *line, const char *target_charset)
-{
-       if (is_encoding_utf8(target_charset)) {
-               if (is_utf8(line->buf))
-                       return NULL;
-       }
-       return "ISO8859-1";
-}
-
 static void convert_to_utf8(struct strbuf *line, const char *charset)
 {
        char *out;
 
-       if (!charset || !*charset) {
-               charset = guess_charset(line, metainfo_charset);
-               if (!charset)
-                       return;
-       }
+       if (!charset || !*charset)
+               return;
 
-       if (!strcasecmp(metainfo_charset, charset))
+       if (same_encoding(metainfo_charset, charset))
                return;
        out = reencode_string(line->buf, metainfo_charset, charset);
        if (!out)