t4201: make use of abbreviation in the test more robust

diff --git a/builtin/mailsplit.c b/builtin/mailsplit.c
index 4859ede38adc76521baf97326b82a007a37b3893..30681681c1389826513464385405dfe6ef8a2855 100644 (file)
--- a/builtin/mailsplit.c
+++ b/builtin/mailsplit.c
@@ -45,6 +45,19 @@ static int is_from_line(const char *line, int len)
 
 static struct strbuf buf = STRBUF_INIT;
 static int keep_cr;
+static int mboxrd;
+
+static int is_gtfrom(const struct strbuf *buf)
+{
+       size_t min = strlen(">From ");
+       size_t ngt;
+
+       if (buf->len < min)
+               return 0;
+
+       ngt = strspn(buf->buf, ">");
+       return ngt && starts_with(buf->buf + ngt, "From ");
+}
 
 /* Called with the first line (potentially partial)
  * already in buf[] -- normally that should begin with
@@ -77,6 +90,9 @@ static int split_one(FILE *mbox, const char *name, int allow_bare)
                        strbuf_addch(&buf, '\n');
                }
 
+               if (mboxrd && is_gtfrom(&buf))
+                       strbuf_remove(&buf, 0, 1);
+
                if (fwrite(buf.buf, 1, buf.len, output) != buf.len)
                        die_errno("cannot write output");
 
@@ -271,6 +287,8 @@ int cmd_mailsplit(int argc, const char **argv, const char *prefix)
                        keep_cr = 1;
                } else if ( arg[1] == 'o' && arg[2] ) {
                        dir = arg+2;
+               } else if (!strcmp(arg, "--mboxrd")) {
+                       mboxrd = 1;
                } else if ( arg[1] == '-' && !arg[2] ) {
                        argp++; /* -- marks end of options */
                        break;