X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;ds=sidebyside;f=diff.c;h=f644947c823e824a294414a660beac02b4182fe4;hb=6e13921b4f7adcc7316a76c0c4955b85b1589a65;hp=6f01595ece4e9934bc9167bdbb61fad362bb7663;hpb=04427ac8483f61dcb01a48c78a821f5042c88195;p=git.git

diff --git a/diff.c b/diff.c
index 6f01595ec..f644947c8 100644
--- a/diff.c
+++ b/diff.c
@@ -93,12 +93,6 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
 	if (!strcmp(var, "diff.external"))
 		return git_config_string(&external_diff_cmd_cfg, var, value);
 
-	switch (userdiff_config_porcelain(var, value)) {
-		case 0: break;
-		case -1: return -1;
-		default: return 0;
-	}
-
 	return git_diff_basic_config(var, value, cb);
 }
 
@@ -109,6 +103,12 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
+	switch (userdiff_config(var, value)) {
+		case 0: break;
+		case -1: return -1;
+		default: return 0;
+	}
+
 	if (!prefixcmp(var, "diff.color.") || !prefixcmp(var, "color.diff.")) {
 		int slot = parse_diff_color_slot(var, 11);
 		if (!value)
@@ -123,12 +123,6 @@ int git_diff_basic_config(const char *var, const char *value, void *cb)
 		return 0;
 	}
 
-	switch (userdiff_config_basic(var, value)) {
-		case 0: break;
-		case -1: return -1;
-		default: return 0;
-	}
-
 	return git_color_default_config(var, value, cb);
 }
 
@@ -390,6 +384,7 @@ static void diff_words_show(struct diff_words_data *diff_words)
 	mmfile_t minus, plus;
 	int i;
 
+	memset(&xpp, 0, sizeof(xpp));
 	memset(&xecfg, 0, sizeof(xecfg));
 	minus.size = diff_words->minus.text.size;
 	minus.ptr = xmalloc(minus.size);
@@ -1317,6 +1312,8 @@ static const char *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);
 	return one->driver->textconv;
 }
@@ -1335,7 +1332,7 @@ static void builtin_diff(const char *name_a,
 	const char *set = diff_get_color_opt(o, DIFF_METAINFO);
 	const char *reset = diff_get_color_opt(o, DIFF_RESET);
 	const char *a_prefix, *b_prefix;
-	const char *textconv_one, *textconv_two;
+	const char *textconv_one = NULL, *textconv_two = NULL;
 
 	diff_set_mnemonic_prefix(o, "a/", "b/");
 	if (DIFF_OPT_TST(o, REVERSE_DIFF)) {
@@ -1389,8 +1386,10 @@ static void builtin_diff(const char *name_a,
 	if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
 		die("unable to read files to diff");
 
-	textconv_one = get_textconv(one);
-	textconv_two = get_textconv(two);
+	if (DIFF_OPT_TST(o, ALLOW_TEXTCONV)) {
+		textconv_one = get_textconv(one);
+		textconv_two = get_textconv(two);
+	}
 
 	if (!DIFF_OPT_TST(o, TEXT) &&
 	    ( (diff_filespec_is_binary(one) && !textconv_one) ||
@@ -1434,6 +1433,7 @@ static void builtin_diff(const char *name_a,
 		if (!pe)
 			pe = diff_funcname_pattern(two);
 
+		memset(&xpp, 0, sizeof(xpp));
 		memset(&xecfg, 0, sizeof(xecfg));
 		memset(&ecbdata, 0, sizeof(ecbdata));
 		ecbdata.label_path = lbl;
@@ -1511,6 +1511,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
 		xdemitconf_t xecfg;
 		xdemitcb_t ecb;
 
+		memset(&xpp, 0, sizeof(xpp));
 		memset(&xecfg, 0, sizeof(xecfg));
 		xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
 		xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
@@ -1557,6 +1558,7 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
 		xdemitconf_t xecfg;
 		xdemitcb_t ecb;
 
+		memset(&xpp, 0, sizeof(xpp));
 		memset(&xecfg, 0, sizeof(xecfg));
 		xecfg.ctxlen = 1; /* at least one context line */
 		xpp.flags = XDF_NEED_MINIMAL;
@@ -2980,6 +2982,7 @@ static int diff_get_patch_id(struct diff_options *options, unsigned char *sha1)
 		struct diff_filepair *p = q->queue[i];
 		int len1, len2;
 
+		memset(&xpp, 0, sizeof(xpp));
 		memset(&xecfg, 0, sizeof(xecfg));
 		if (p->status == 0)
 			return error("internal diff status error");