Show usage string for 'git commit-tree -h'

diff --git a/builtin-mailsplit.c b/builtin-mailsplit.c
index c2ec6ea3d51e760581dcb6f86c1783a545ebc07a..dfe5b151e6e0030abf6248808d414b2fecc5fdb7 100644 (file)
--- a/builtin-mailsplit.c
+++ b/builtin-mailsplit.c
@@ -44,24 +44,7 @@ static int is_from_line(const char *line, int len)
 }
 
 static struct strbuf buf = STRBUF_INIT;
-
-/* We cannot use fgets() because our lines can contain NULs */
-int read_line_with_nul(char *buf, int size, FILE *in)
-{
-       int len = 0, c;
-
-       for (;;) {
-               c = getc(in);
-               if (c == EOF)
-                       break;
-               buf[len++] = c;
-               if (c == '\n' || len + 1 >= size)
-                       break;
-       }
-       buf[len] = '\0';
-
-       return len;
-}
+static int keep_cr;
 
 /* Called with the first line (potentially partial)
  * already in buf[] -- normally that should begin with
@@ -81,12 +64,18 @@ static int split_one(FILE *mbox, const char *name, int allow_bare)
        fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666);
        if (fd < 0)
                die_errno("cannot open output file '%s'", name);
-       output = fdopen(fd, "w");
+       output = xfdopen(fd, "w");
 
        /* Copy it out, while searching for a line that begins with
         * "From " and having something that looks like a date format.
         */
        for (;;) {
+               if (!keep_cr && buf.len > 1 && buf.buf[buf.len-1] == '\n' &&
+                       buf.buf[buf.len-2] == '\r') {
+                       strbuf_setlen(&buf, buf.len-2);
+                       strbuf_addch(&buf, '\n');
+               }
+
                if (fwrite(buf.buf, 1, buf.len, output) != buf.len)
                        die_errno("cannot write output");
 
@@ -244,6 +233,8 @@ int cmd_mailsplit(int argc, const char **argv, const char *prefix)
                        nr = strtol(arg+2, NULL, 10);
                } else if ( arg[1] == 'b' && !arg[2] ) {
                        allow_bare = 1;
+               } else if (!strcmp(arg, "--keep-cr")) {
+                       keep_cr = 1;
                } else if ( arg[1] == 'o' && arg[2] ) {
                        dir = arg+2;
                } else if ( arg[1] == '-' && !arg[2] ) {