int diff_auto_refresh_index = 1;
static int diff_mnemonic_prefix;
static int diff_no_prefix;
+static struct diff_options default_diff_options;
static char diff_colors[][COLOR_MAXLEN] = {
GIT_COLOR_RESET,
GIT_COLOR_NORMAL, /* FUNCINFO */
};
-static void diff_filespec_load_driver(struct diff_filespec *one);
-static size_t fill_textconv(struct userdiff_driver *driver,
- struct diff_filespec *df, char **outbuf);
-
static int parse_diff_color_slot(const char *var, int ofs)
{
if (!strcasecmp(var+ofs, "plain"))
if (!strcmp(var, "diff.wordregex"))
return git_config_string(&diff_word_regex_cfg, var, value);
+ if (!strcmp(var, "diff.ignoresubmodules"))
+ handle_ignore_submodules_arg(&default_diff_options, value);
+
return git_diff_basic_config(var, value, cb);
}
return 0;
}
+ if (!prefixcmp(var, "submodule."))
+ return parse_submodule_config_option(var, value);
+
return git_color_default_config(var, value, cb);
}
options->b_prefix = b;
}
-static struct userdiff_driver *get_textconv(struct diff_filespec *one)
+struct userdiff_driver *get_textconv(struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one))
return NULL;
struct diff_filespec *one,
struct diff_filespec *two,
const char *xfrm_msg,
+ int must_show_header,
struct diff_options *o,
int complete_rewrite)
{
strbuf_addf(&header, "%s%snew file mode %06o%s\n", line_prefix, set, two->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ must_show_header = 1;
}
else if (lbl[1][0] == '/') {
strbuf_addf(&header, "%s%sdeleted file mode %06o%s\n", line_prefix, set, one->mode, reset);
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
+ must_show_header = 1;
}
else {
if (one->mode != two->mode) {
strbuf_addf(&header, "%s%sold mode %06o%s\n", line_prefix, set, one->mode, reset);
strbuf_addf(&header, "%s%snew mode %06o%s\n", line_prefix, set, two->mode, reset);
+ must_show_header = 1;
}
if (xfrm_msg)
strbuf_addstr(&header, xfrm_msg);
die("unable to read files to diff");
/* Quite common confusing case */
if (mf1.size == mf2.size &&
- !memcmp(mf1.ptr, mf2.ptr, mf1.size))
+ !memcmp(mf1.ptr, mf2.ptr, mf1.size)) {
+ if (must_show_header)
+ fprintf(o->file, "%s", header.buf);
goto free_ab_and_return;
+ }
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
if (DIFF_OPT_TST(o, BINARY))
struct emit_callback ecbdata;
const struct userdiff_funcname *pe;
- if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS)) {
+ if (!DIFF_XDL_TST(o, WHITESPACE_FLAGS) || must_show_header) {
fprintf(o->file, "%s", header.buf);
strbuf_reset(&header);
}
struct diff_filespec *two,
struct diff_options *o,
struct diff_filepair *p,
+ int *must_show_header,
int use_color)
{
const char *set = diff_get_color(use_color, DIFF_METAINFO);
struct strbuf *msgbuf;
char *line_prefix = "";
+ *must_show_header = 1;
if (o->output_prefix) {
msgbuf = o->output_prefix(o, o->output_prefix_data);
line_prefix = msgbuf->buf;
}
-
strbuf_init(msg, PATH_MAX * 2 + 300);
switch (p->status) {
case DIFF_STATUS_COPIED:
}
/* fallthru */
default:
- /* nothing */
- ;
+ *must_show_header = 0;
}
if (one && two && hashcmp(one->sha1, two->sha1)) {
int abbrev = DIFF_OPT_TST(o, FULL_INDEX) ? 40 : DEFAULT_ABBREV;
(!fill_mmfile(&mf, two) && diff_filespec_is_binary(two)))
abbrev = 40;
}
- strbuf_addf(msg, "%s%sindex %s..", set,
- line_prefix,
+ strbuf_addf(msg, "%s%sindex %s..", line_prefix, set,
find_unique_abbrev(one->sha1, abbrev));
strbuf_addstr(msg, find_unique_abbrev(two->sha1, abbrev));
if (one->mode == two->mode)
{
const char *xfrm_msg = NULL;
int complete_rewrite = (p->status == DIFF_STATUS_MODIFIED) && p->score;
+ int must_show_header = 0;
if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL))
pgm = NULL;
* external diff driver
*/
fill_metainfo(msg, name, other, one, two, o, p,
+ &must_show_header,
DIFF_OPT_TST(o, COLOR_DIFF) && !pgm);
xfrm_msg = msg->len ? msg->buf : NULL;
}
}
if (one && two)
builtin_diff(name, other ? other : name,
- one, two, xfrm_msg, o, complete_rewrite);
+ one, two, xfrm_msg, must_show_header,
+ o, complete_rewrite);
else
fprintf(o->file, "* Unmerged path %s\n", name);
}
static void strip_prefix(int prefix_length, const char **namep, const char **otherp)
{
/* Strip the prefix but do not molest /dev/null and absolute paths */
- if (*namep && **namep != '/')
+ if (*namep && **namep != '/') {
*namep += prefix_length;
- if (*otherp && **otherp != '/')
+ if (**namep == '/')
+ ++*namep;
+ }
+ if (*otherp && **otherp != '/') {
*otherp += prefix_length;
+ if (**otherp == '/')
+ ++*otherp;
+ }
}
static void run_diff(struct diff_filepair *p, struct diff_options *o)
void diff_setup(struct diff_options *options)
{
- memset(options, 0, sizeof(*options));
- memset(&diff_queued_diff, 0, sizeof(diff_queued_diff));
+ memcpy(options, &default_diff_options, sizeof(*options));
options->file = stdout;
DIFF_OPT_SET(options, ALLOW_TEXTCONV);
else if (!strcmp(arg, "--no-textconv"))
DIFF_OPT_CLR(options, ALLOW_TEXTCONV);
- else if (!strcmp(arg, "--ignore-submodules"))
- DIFF_OPT_SET(options, IGNORE_SUBMODULES);
- else if (!strcmp(arg, "--submodule"))
+ else if (!strcmp(arg, "--ignore-submodules")) {
+ DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
+ handle_ignore_submodules_arg(options, "all");
+ } else if (!prefixcmp(arg, "--ignore-submodules=")) {
+ DIFF_OPT_SET(options, OVERRIDE_SUBMODULE_CONFIG);
+ handle_ignore_submodules_arg(options, arg + 20);
+ } else if (!strcmp(arg, "--submodule"))
DIFF_OPT_SET(options, SUBMODULE_LOG);
else if (!prefixcmp(arg, "--submodule=")) {
if (!strcmp(arg + 12, "log"))
void diffcore_std(struct diff_options *options)
{
- /* We never run this function more than one time, because the
- * rename/copy detection logic can only run once.
- */
- if (diff_queued_diff.run)
- return;
-
if (options->skip_stat_unmatch)
diffcore_skip_stat_unmatch(options);
- if (options->break_opt != -1)
- diffcore_break(options->break_opt);
- if (options->detect_rename)
- diffcore_rename(options);
- if (options->break_opt != -1)
- diffcore_merge_broken();
+ if (!options->found_follow) {
+ /* See try_to_follow_renames() in tree-diff.c */
+ if (options->break_opt != -1)
+ diffcore_break(options->break_opt);
+ if (options->detect_rename)
+ diffcore_rename(options);
+ if (options->break_opt != -1)
+ diffcore_merge_broken();
+ }
if (options->pickaxe)
diffcore_pickaxe(options->pickaxe, options->pickaxe_opts);
if (options->orderfile)
diffcore_order(options->orderfile);
- diff_resolve_rename_copy();
+ if (!options->found_follow)
+ /* See try_to_follow_renames() in tree-diff.c */
+ diff_resolve_rename_copy();
diffcore_apply_filter(options->filter);
if (diff_queued_diff.nr && !DIFF_OPT_TST(options, DIFF_FROM_CONTENTS))
else
DIFF_OPT_CLR(options, HAS_CHANGES);
- diff_queued_diff.run = 1;
+ options->found_follow = 0;
}
int diff_result_code(struct diff_options *opt, int status)
return result;
}
+/*
+ * Shall changes to this submodule be ignored?
+ *
+ * Submodule changes can be configured to be ignored separately for each path,
+ * but that configuration can be overridden from the command line.
+ */
+static int is_submodule_ignored(const char *path, struct diff_options *options)
+{
+ int ignored = 0;
+ unsigned orig_flags = options->flags;
+ if (!DIFF_OPT_TST(options, OVERRIDE_SUBMODULE_CONFIG))
+ set_diffopt_flags_from_submodule_config(options, path);
+ if (DIFF_OPT_TST(options, IGNORE_SUBMODULES))
+ ignored = 1;
+ options->flags = orig_flags;
+ return ignored;
+}
+
void diff_addremove(struct diff_options *options,
int addremove, unsigned mode,
const unsigned char *sha1,
{
struct diff_filespec *one, *two;
- if (DIFF_OPT_TST(options, IGNORE_SUBMODULES) && S_ISGITLINK(mode))
+ if (S_ISGITLINK(mode) && is_submodule_ignored(concatpath, options))
return;
/* This may look odd, but it is a preparation for
{
struct diff_filespec *one, *two;
- if (DIFF_OPT_TST(options, IGNORE_SUBMODULES) && S_ISGITLINK(old_mode)
- && S_ISGITLINK(new_mode))
+ if (S_ISGITLINK(old_mode) && S_ISGITLINK(new_mode) &&
+ is_submodule_ignored(concatpath, options))
return;
if (DIFF_OPT_TST(options, REVERSE_DIFF)) {
return strbuf_detach(&buf, outsize);
}
-static size_t fill_textconv(struct userdiff_driver *driver,
- struct diff_filespec *df,
- char **outbuf)
+size_t fill_textconv(struct userdiff_driver *driver,
+ struct diff_filespec *df,
+ char **outbuf)
{
size_t size;