Teach diff about -b and -w flags

diff --git a/diff.c b/diff.c
index 1db0285cd740da87b1c0f9d3a32ba429f19cad74..585be7e50da4a2222b6fe873729f6283e9a77b0b 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -678,7 +678,7 @@ static void builtin_diff(const char *name_a,
                memset(&ecbdata, 0, sizeof(ecbdata));
                ecbdata.label_path = lbl;
                ecbdata.color_diff = o->color_diff;
-               xpp.flags = XDF_NEED_MINIMAL;
+               xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
                xecfg.ctxlen = o->context;
                xecfg.flags = XDL_EMIT_FUNCNAMES;
                if (!diffopts)
@@ -703,6 +703,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
                             struct diff_filespec *one,
                             struct diff_filespec *two,
                             struct diffstat_t *diffstat,
+                            struct diff_options *o,
                             int complete_rewrite)
 {
        mmfile_t mf1, mf2;
@@ -732,7 +733,7 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
                xdemitconf_t xecfg;
                xdemitcb_t ecb;
 
-               xpp.flags = XDF_NEED_MINIMAL;
+               xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts;
                xecfg.ctxlen = 0;
                xecfg.flags = 0;
                ecb.outf = xdiff_outf;
@@ -1317,7 +1318,7 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
 
        if (DIFF_PAIR_UNMERGED(p)) {
                /* unmerged */
-               builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, 0);
+               builtin_diffstat(p->one->path, NULL, NULL, NULL, diffstat, o, 0);
                return;
        }
 
@@ -1329,7 +1330,7 @@ static void run_diffstat(struct diff_filepair *p, struct diff_options *o,
 
        if (p->status == DIFF_STATUS_MODIFIED && p->score)
                complete_rewrite = 1;
-       builtin_diffstat(name, other, p->one, p->two, diffstat, complete_rewrite);
+       builtin_diffstat(name, other, p->one, p->two, diffstat, o, complete_rewrite);
 }
 
 static void run_checkdiff(struct diff_filepair *p, struct diff_options *o)
@@ -1534,6 +1535,10 @@ int diff_opt_parse(struct diff_options *options, const char **av, int ac)
        }
        else if (!strcmp(arg, "--color"))
                options->color_diff = 1;
+       else if (!strcmp(arg, "-w") || !strcmp(arg, "--ignore-all-space"))
+               options->xdl_opts |= XDF_IGNORE_WHITESPACE;
+       else if (!strcmp(arg, "-b") || !strcmp(arg, "--ignore-space-change"))
+               options->xdl_opts |= XDF_IGNORE_WHITESPACE_CHANGE;
        else
                return 0;
        return 1;