Merge git://repo.or.cz/git-gui

[git.git] / diff.c

diff --git a/diff.c b/diff.c
index 6f01595ece4e9934bc9167bdbb61fad362bb7663..f644947c823e824a294414a660beac02b4182fe4 100644 (file)
--- 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");