Documentation: Add filter.<driver>.* to config

diff --git a/diff.c b/diff.c
index 0a438694351e555f66cbb3d24759d3a10a46ff20..3fd9e0c70315727f835f39d9a0230ee9f24e7ea8 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -245,6 +245,15 @@ static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
        return 0;
 }
 
+/* like fill_mmfile, but only for size, so we can avoid retrieving blob */
+static unsigned long diff_filespec_size(struct diff_filespec *one)
+{
+       if (!DIFF_FILE_VALID(one))
+               return 0;
+       diff_populate_filespec(one, 1);
+       return one->size;
+}
+
 static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
 {
        char *ptr = mf->ptr;
@@ -606,16 +615,14 @@ static void diff_words_append(char *line, unsigned long len,
        buffer->text.ptr[buffer->text.size] = '\0';
 }
 
-struct diff_words_style_elem
-{
+struct diff_words_style_elem {
        const char *prefix;
        const char *suffix;
        const char *color; /* NULL; filled in by the setup code if
                            * color is enabled */
 };
 
-struct diff_words_style
-{
+struct diff_words_style {
        enum diff_words_type type;
        struct diff_words_style_elem new, old, ctx;
        const char *newline;
@@ -2079,25 +2086,28 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
                data->is_unmerged = 1;
                return;
        }
-       if (complete_rewrite) {
+
+       if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
+               data->is_binary = 1;
+               data->added = diff_filespec_size(two);
+               data->deleted = diff_filespec_size(one);
+       }
+
+       else if (complete_rewrite) {
                diff_populate_filespec(one, 0);
                diff_populate_filespec(two, 0);
                data->deleted = count_lines(one->data, one->size);
                data->added = count_lines(two->data, two->size);
-               goto free_and_return;
        }
-       if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
-               die("unable to read files to diff");
 
-       if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
-               data->is_binary = 1;
-               data->added = mf2.size;
-               data->deleted = mf1.size;
-       } else {
+       else {
                /* Crazy xdl interfaces.. */
                xpparam_t xpp;
                xdemitconf_t xecfg;
 
+               if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
+                       die("unable to read files to diff");
+
                memset(&xpp, 0, sizeof(xpp));
                memset(&xecfg, 0, sizeof(xecfg));
                xpp.flags = o->xdl_opts;
@@ -2105,7 +2115,6 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
                              &xpp, &xecfg);
        }
 
- free_and_return:
        diff_free_filespec_data(one);
        diff_free_filespec_data(two);
 }
@@ -4412,7 +4421,7 @@ size_t fill_textconv(struct userdiff_driver *driver,
                return df->size;
        }
 
-       if (driver->textconv_cache) {
+       if (driver->textconv_cache && df->sha1_valid) {
                *outbuf = notes_cache_get(driver->textconv_cache, df->sha1,
                                          &size);
                if (*outbuf)
@@ -4423,7 +4432,7 @@ size_t fill_textconv(struct userdiff_driver *driver,
        if (!*outbuf)
                die("unable to read files to diff");
 
-       if (driver->textconv_cache) {
+       if (driver->textconv_cache && df->sha1_valid) {
                /* ignore errors, as we might be in a readonly repository */
                notes_cache_put(driver->textconv_cache, df->sha1, *outbuf,
                                size);