Makefile: correct example fuzz build
[gitweb.git] / diff.c
diff --git a/diff.c b/diff.c
index 8647db3d307c297448c91b328b1dabf19635fb94..f1e901a5fc3f4d4bd61fd1ce0ed69bb261424c15 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -291,7 +291,7 @@ static int parse_color_moved(const char *arg)
                return error(_("color moved setting must be one of 'no', 'default', 'blocks', 'zebra', 'dimmed-zebra', 'plain'"));
 }
 
-static int parse_color_moved_ws(const char *arg)
+static unsigned parse_color_moved_ws(const char *arg)
 {
        int ret = 0;
        struct string_list l = STRING_LIST_INIT_DUP;
@@ -312,15 +312,19 @@ static int parse_color_moved_ws(const char *arg)
                        ret |= XDF_IGNORE_WHITESPACE;
                else if (!strcmp(sb.buf, "allow-indentation-change"))
                        ret |= COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE;
-               else
-                       error(_("ignoring unknown color-moved-ws mode '%s'"), sb.buf);
+               else {
+                       ret |= COLOR_MOVED_WS_ERROR;
+                       error(_("unknown color-moved-ws mode '%s', possible values are 'ignore-space-change', 'ignore-space-at-eol', 'ignore-all-space', 'allow-indentation-change'"), sb.buf);
+               }
 
                strbuf_release(&sb);
        }
 
        if ((ret & COLOR_MOVED_WS_ALLOW_INDENTATION_CHANGE) &&
-           (ret & XDF_WHITESPACE_FLAGS))
-               die(_("color-moved-ws: allow-indentation-change cannot be combined with other white space modes"));
+           (ret & XDF_WHITESPACE_FLAGS)) {
+               error(_("color-moved-ws: allow-indentation-change cannot be combined with other white space modes"));
+               ret |= COLOR_MOVED_WS_ERROR;
+       }
 
        string_list_clear(&l, 0);
 
@@ -341,8 +345,8 @@ int git_diff_ui_config(const char *var, const char *value, void *cb)
                return 0;
        }
        if (!strcmp(var, "diff.colormovedws")) {
-               int cm = parse_color_moved_ws(value);
-               if (cm < 0)
+               unsigned cm = parse_color_moved_ws(value);
+               if (cm & COLOR_MOVED_WS_ERROR)
                        return -1;
                diff_color_moved_ws_default = cm;
                return 0;
@@ -1912,19 +1916,17 @@ static int color_words_output_graph_prefix(struct diff_words_data *diff_words)
        }
 }
 
-static void fn_out_diff_words_aux(void *priv, char *line, unsigned long len)
+static void fn_out_diff_words_aux(void *priv,
+                                 long minus_first, long minus_len,
+                                 long plus_first, long plus_len,
+                                 const char *func, long funclen)
 {
        struct diff_words_data *diff_words = priv;
        struct diff_words_style *style = diff_words->style;
-       int minus_first, minus_len, plus_first, plus_len;
        const char *minus_begin, *minus_end, *plus_begin, *plus_end;
        struct diff_options *opt = diff_words->opt;
        const char *line_prefix;
 
-       if (line[0] != '@' || parse_hunk_header(line, len,
-                       &minus_first, &minus_len, &plus_first, &plus_len))
-               return;
-
        assert(opt);
        line_prefix = diff_line_prefix(opt);
 
@@ -2074,8 +2076,8 @@ static void diff_words_show(struct diff_words_data *diff_words)
        xpp.flags = 0;
        /* as only the hunk header will be parsed, we need a 0-context */
        xecfg.ctxlen = 0;
-       if (xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, diff_words,
-                         &xpp, &xecfg))
+       if (xdi_diff_outf(&minus, &plus, fn_out_diff_words_aux, NULL,
+                         diff_words, &xpp, &xecfg))
                die("unable to generate word diff");
        free(minus.ptr);
        free(plus.ptr);
@@ -3130,6 +3132,15 @@ static int is_conflict_marker(const char *line, int marker_size, unsigned long l
        return 1;
 }
 
+static void checkdiff_consume_hunk(void *priv,
+                                  long ob, long on, long nb, long nn,
+                                  const char *func, long funclen)
+
+{
+       struct checkdiff_t *data = priv;
+       data->lineno = nb - 1;
+}
+
 static void checkdiff_consume(void *priv, char *line, unsigned long len)
 {
        struct checkdiff_t *data = priv;
@@ -3165,12 +3176,6 @@ static void checkdiff_consume(void *priv, char *line, unsigned long len)
                              data->o->file, set, reset, ws);
        } else if (line[0] == ' ') {
                data->lineno++;
-       } else if (line[0] == '@') {
-               char *plus = strchr(line, '+');
-               if (plus)
-                       data->lineno = strtol(plus, NULL, 10) - 1;
-               else
-                       die("invalid diff");
        }
 }
 
@@ -3227,7 +3232,7 @@ static void emit_binary_diff_body(struct diff_options *o,
        }
 
        if (delta && delta_size < deflate_size) {
-               char *s = xstrfmt("%lu", orig_size);
+               char *s = xstrfmt("%"PRIuMAX , (uintmax_t)orig_size);
                emit_diff_symbol(o, DIFF_SYMBOL_BINARY_DIFF_HEADER_DELTA,
                                 s, strlen(s), 0);
                free(s);
@@ -3312,14 +3317,14 @@ void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const
                options->b_prefix = b;
 }
 
-struct userdiff_driver *get_textconv(struct index_state *istate,
+struct userdiff_driver *get_textconv(struct repository *r,
                                     struct diff_filespec *one)
 {
        if (!DIFF_FILE_VALID(one))
                return NULL;
 
-       diff_filespec_load_driver(one, istate);
-       return userdiff_get_textconv(one->driver);
+       diff_filespec_load_driver(one, r->index);
+       return userdiff_get_textconv(r, one->driver);
 }
 
 static void builtin_diff(const char *name_a,
@@ -3368,8 +3373,8 @@ static void builtin_diff(const char *name_a,
        }
 
        if (o->flags.allow_textconv) {
-               textconv_one = get_textconv(o->repo->index, one);
-               textconv_two = get_textconv(o->repo->index, two);
+               textconv_one = get_textconv(o->repo, one);
+               textconv_two = get_textconv(o->repo, two);
        }
 
        /* Never use a non-valid filename anywhere if at all possible */
@@ -3526,8 +3531,8 @@ static void builtin_diff(const char *name_a,
                        xecfg.ctxlen = strtoul(v, NULL, 10);
                if (o->word_diff)
                        init_diff_words_data(&ecbdata, o, one, two);
-               if (xdi_diff_outf(&mf1, &mf2, fn_out_consume, &ecbdata,
-                                 &xpp, &xecfg))
+               if (xdi_diff_outf(&mf1, &mf2, NULL, fn_out_consume,
+                                 &ecbdata, &xpp, &xecfg))
                        die("unable to generate diff for %s", one->path);
                if (o->word_diff)
                        free_diff_words_data(&ecbdata);
@@ -3637,8 +3642,8 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
                xpp.anchors_nr = o->anchors_nr;
                xecfg.ctxlen = o->context;
                xecfg.interhunkctxlen = o->interhunkcontext;
-               if (xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat,
-                                 &xpp, &xecfg))
+               if (xdi_diff_outf(&mf1, &mf2, discard_hunk_line,
+                                 diffstat_consume, diffstat, &xpp, &xecfg))
                        die("unable to generate diffstat for %s", one->path);
        }
 
@@ -3686,7 +3691,8 @@ static void builtin_checkdiff(const char *name_a, const char *name_b,
                memset(&xecfg, 0, sizeof(xecfg));
                xecfg.ctxlen = 1; /* at least one context line */
                xpp.flags = 0;
-               if (xdi_diff_outf(&mf1, &mf2, checkdiff_consume, &data,
+               if (xdi_diff_outf(&mf1, &mf2, checkdiff_consume_hunk,
+                                 checkdiff_consume, &data,
                                  &xpp, &xecfg))
                        die("unable to generate checkdiff for %s", one->path);
 
@@ -5032,10 +5038,13 @@ int diff_opt_parse(struct diff_options *options,
        else if (skip_prefix(arg, "--color-moved=", &arg)) {
                int cm = parse_color_moved(arg);
                if (cm < 0)
-                       die("bad --color-moved argument: %s", arg);
+                       return error("bad --color-moved argument: %s", arg);
                options->color_moved = cm;
        } else if (skip_prefix(arg, "--color-moved-ws=", &arg)) {
-               options->color_moved_ws_handling = parse_color_moved_ws(arg);
+               unsigned cm = parse_color_moved_ws(arg);
+               if (cm & COLOR_MOVED_WS_ERROR)
+                       return -1;
+               options->color_moved_ws_handling = cm;
        } else if (skip_to_optional_arg_default(arg, "--color-words", &options->word_regex, NULL)) {
                options->use_color = 1;
                options->word_diff = DIFF_WORDS_COLOR;
@@ -5666,10 +5675,6 @@ static void patch_id_consume(void *priv, char *line, unsigned long len)
        struct patch_id_t *data = priv;
        int new_len;
 
-       /* Ignore line numbers when computing the SHA1 of the patch */
-       if (starts_with(line, "@@ -"))
-               return;
-
        new_len = remove_space(line, len);
 
        git_SHA1_Update(data->ctx, line, new_len);
@@ -5771,8 +5776,8 @@ static int diff_get_patch_id(struct diff_options *options, struct object_id *oid
                xpp.flags = 0;
                xecfg.ctxlen = 3;
                xecfg.flags = 0;
-               if (xdi_diff_outf(&mf1, &mf2, patch_id_consume, &data,
-                                 &xpp, &xecfg))
+               if (xdi_diff_outf(&mf1, &mf2, discard_hunk_line,
+                                 patch_id_consume, &data, &xpp, &xecfg))
                        return error("unable to generate patch-id diff for %s",
                                     p->one->path);
        }
@@ -6436,7 +6441,7 @@ int textconv_object(struct repository *r,
 
        df = alloc_filespec(path);
        fill_filespec(df, oid, oid_valid, mode);
-       textconv = get_textconv(r->index, df);
+       textconv = get_textconv(r, df);
        if (!textconv) {
                free_filespec(df);
                return 0;