t9300: avoid short reads from dd

[thirdparty/git.git] / diff.c

diff --git a/diff.c b/diff.c
index d1c6b91982ccbb6489c57c9bbddb692c7b4b7ca3..c248bc64c57b3206905dd8e6f72a702073a137cc 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -1771,8 +1771,14 @@ static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two, char *pre
 
 static void diff_filespec_load_driver(struct diff_filespec *one)
 {
-       if (!one->driver)
+       /* Use already-loaded driver */
+       if (one->driver)
+               return;
+
+       if (S_ISREG(one->mode))
                one->driver = userdiff_find_by_path(one->path);
+
+       /* Fallback to default settings */
        if (!one->driver)
                one->driver = userdiff_find_by_name("default");
 }
@@ -1820,8 +1826,7 @@ struct userdiff_driver *get_textconv(struct diff_filespec *one)
 {
        if (!DIFF_FILE_VALID(one))
                return NULL;
-       if (!S_ISREG(one->mode))
-               return NULL;
+
        diff_filespec_load_driver(one);
        if (!one->driver->textconv)
                return NULL;
@@ -3889,7 +3894,7 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
 
                xpp.flags = 0;
                xecfg.ctxlen = 3;
-               xecfg.flags = XDL_EMIT_FUNCNAMES;
+               xecfg.flags = 0;
                xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
                              &xpp, &xecfg);
        }