transport-helper: pass --signed-tags=warn-strip to fast-export

diff --git a/utf8.c b/utf8.c
index e7caef4721eafa66aba8f481675ebd69acdd6df8..7f648574a550432e3160fcef178f894faf0bdd54 100644 (file)
--- a/utf8.c
+++ b/utf8.c
@@ -323,7 +323,7 @@ static size_t display_mode_esc_sequence_len(const char *s)
  * If indent is negative, assume that already -indent columns have been
  * consumed (and no extra indent is necessary for the first line).
  */
-int strbuf_add_wrapped_text(struct strbuf *buf,
+void strbuf_add_wrapped_text(struct strbuf *buf,
                const char *text, int indent1, int indent2, int width)
 {
        int indent, w, assume_utf8 = 1;
@@ -332,7 +332,7 @@ int strbuf_add_wrapped_text(struct strbuf *buf,
 
        if (width <= 0) {
                strbuf_add_indented_text(buf, text, indent1, indent2);
-               return 1;
+               return;
        }
 
 retry:
@@ -353,17 +353,17 @@ int strbuf_add_wrapped_text(struct strbuf *buf,
 
                c = *text;
                if (!c || isspace(c)) {
-                       if (w < width || !space) {
+                       if (w <= width || !space) {
                                const char *start = bol;
                                if (!c && text == start)
-                                       return w;
+                                       return;
                                if (space)
                                        start = space;
                                else
                                        strbuf_addchars(buf, ' ', indent);
                                strbuf_add(buf, start, text - start);
                                if (!c)
-                                       return w;
+                                       return;
                                space = text;
                                if (c == '\t')
                                        w |= 0x07;
@@ -405,13 +405,12 @@ int strbuf_add_wrapped_text(struct strbuf *buf,
        }
 }
 
-int strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len,
+void strbuf_add_wrapped_bytes(struct strbuf *buf, const char *data, int len,
                             int indent, int indent2, int width)
 {
        char *tmp = xstrndup(data, len);
-       int r = strbuf_add_wrapped_text(buf, tmp, indent, indent2, width);
+       strbuf_add_wrapped_text(buf, tmp, indent, indent2, width);
        free(tmp);
-       return r;
 }
 
 int is_encoding_utf8(const char *name)
@@ -423,6 +422,34 @@ int is_encoding_utf8(const char *name)
        return 0;
 }
 
+int same_encoding(const char *src, const char *dst)
+{
+       if (is_encoding_utf8(src) && is_encoding_utf8(dst))
+               return 1;
+       return !strcasecmp(src, dst);
+}
+
+/*
+ * Wrapper for fprintf and returns the total number of columns required
+ * for the printed string, assuming that the string is utf8.
+ */
+int utf8_fprintf(FILE *stream, const char *format, ...)
+{
+       struct strbuf buf = STRBUF_INIT;
+       va_list arg;
+       int columns;
+
+       va_start(arg, format);
+       strbuf_vaddf(&buf, format, arg);
+       va_end(arg);
+
+       columns = fputs(buf.buf, stream);
+       if (0 <= columns) /* keep the error from the I/O */
+               columns = utf8_strwidth(buf.buf);
+       strbuf_release(&buf);
+       return columns;
+}
+
 /*
  * Given a buffer and its encoding, return it re-encoded
  * with iconv.  If the conversion fails, returns NULL.
@@ -504,3 +531,42 @@ char *reencode_string(const char *in, const char *out_encoding, const char *in_e
        return out;
 }
 #endif
+
+/*
+ * Returns first character length in bytes for multi-byte `text` according to
+ * `encoding`.
+ *
+ * - The `text` pointer is updated to point at the next character.
+ * - When `remainder_p` is not NULL, on entry `*remainder_p` is how much bytes
+ *   we can consume from text, and on exit `*remainder_p` is reduced by returned
+ *   character length. Otherwise `text` is treated as limited by NUL.
+ */
+int mbs_chrlen(const char **text, size_t *remainder_p, const char *encoding)
+{
+       int chrlen;
+       const char *p = *text;
+       size_t r = (remainder_p ? *remainder_p : SIZE_MAX);
+
+       if (r < 1)
+               return 0;
+
+       if (is_encoding_utf8(encoding)) {
+               pick_one_utf8_char(&p, &r);
+
+               chrlen = p ? (p - *text)
+                          : 1 /* not valid UTF-8 -> raw byte sequence */;
+       }
+       else {
+               /*
+                * TODO use iconv to decode one char and obtain its chrlen
+                * for now, let's treat encodings != UTF-8 as one-byte
+                */
+               chrlen = 1;
+       }
+
+       *text += chrlen;
+       if (remainder_p)
+               *remainder_p -= chrlen;
+
+       return chrlen;
+}