options->output_format |= DIFF_FORMAT_NUMSTAT;
else if (!strcmp(arg, "--shortstat"))
options->output_format |= DIFF_FORMAT_SHORTSTAT;
- else if (!strcmp(arg, "-X") || !strcmp(arg, "--dirstat"))
- return parse_dirstat_opt(options, "");
- else if (skip_prefix(arg, "-X", &arg))
- return parse_dirstat_opt(options, arg);
- else if (skip_prefix(arg, "--dirstat=", &arg))
+ else if (skip_prefix(arg, "-X", &arg) ||
+ skip_to_optional_arg(arg, "--dirstat", &arg))
return parse_dirstat_opt(options, arg);
else if (!strcmp(arg, "--cumulative"))
return parse_dirstat_opt(options, "cumulative");
- else if (!strcmp(arg, "--dirstat-by-file"))
- return parse_dirstat_opt(options, "files");
- else if (skip_prefix(arg, "--dirstat-by-file=", &arg)) {
+ else if (skip_to_optional_arg(arg, "--dirstat-by-file", &arg)) {
parse_dirstat_opt(options, "files");
return parse_dirstat_opt(options, arg);
}
return stat_opt(options, av);
/* renames options */
- else if (starts_with(arg, "-B") || starts_with(arg, "--break-rewrites=") ||
- !strcmp(arg, "--break-rewrites")) {
+ else if (starts_with(arg, "-B") ||
+ skip_to_optional_arg(arg, "--break-rewrites", NULL)) {
if ((options->break_opt = diff_scoreopt_parse(arg)) == -1)
return error("invalid argument to -B: %s", arg+2);
}
- else if (starts_with(arg, "-M") || starts_with(arg, "--find-renames=") ||
- !strcmp(arg, "--find-renames")) {
+ else if (starts_with(arg, "-M") ||
+ skip_to_optional_arg(arg, "--find-renames", NULL)) {
if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
return error("invalid argument to -M: %s", arg+2);
options->detect_rename = DIFF_DETECT_RENAME;
else if (!strcmp(arg, "-D") || !strcmp(arg, "--irreversible-delete")) {
options->irreversible_delete = 1;
}
- else if (starts_with(arg, "-C") || starts_with(arg, "--find-copies=") ||
- !strcmp(arg, "--find-copies")) {
+ else if (starts_with(arg, "-C") ||
+ skip_to_optional_arg(arg, "--find-copies", NULL)) {
if (options->detect_rename == DIFF_DETECT_COPY)
options->flags.find_copies_harder = 1;
if ((options->rename_score = diff_scoreopt_parse(arg)) == -1)
options->flags.rename_empty = 1;
else if (!strcmp(arg, "--no-rename-empty"))
options->flags.rename_empty = 0;
- else if (!strcmp(arg, "--relative"))
- options->flags.relative_name = 1;
- else if (skip_prefix(arg, "--relative=", &arg)) {
+ else if (skip_to_optional_arg_default(arg, "--relative", &arg, NULL)) {
options->flags.relative_name = 1;
- options->prefix = arg;
+ if (arg)
+ options->prefix = arg;
}
/* xdiff options */
else if (!strcmp(arg, "--no-follow")) {
options->flags.follow_renames = 0;
options->flags.default_follow_renames = 0;
- } else if (!strcmp(arg, "--color"))
- options->use_color = 1;
- else if (skip_prefix(arg, "--color=", &arg)) {
+ } else if (skip_to_optional_arg_default(arg, "--color", &arg, "always")) {
int value = git_config_colorbool(NULL, arg);
if (value < 0)
return error("option `color' expects \"always\", \"auto\", or \"never\"");
if (cm < 0)
die("bad --color-moved argument: %s", arg);
options->color_moved = cm;
- } else if (!strcmp(arg, "--color-words")) {
- options->use_color = 1;
- options->word_diff = DIFF_WORDS_COLOR;
- }
- else if (skip_prefix(arg, "--color-words=", &arg)) {
+ } else if (skip_to_optional_arg_default(arg, "--color-words", &options->word_regex, NULL)) {
options->use_color = 1;
options->word_diff = DIFF_WORDS_COLOR;
- options->word_regex = arg;
}
else if (!strcmp(arg, "--word-diff")) {
if (options->word_diff == DIFF_WORDS_NONE)
options->flags.textconv_set_via_cmdline = 1;
} else if (!strcmp(arg, "--no-textconv"))
options->flags.allow_textconv = 0;
- else if (!strcmp(arg, "--ignore-submodules")) {
- options->flags.override_submodule_config = 1;
- handle_ignore_submodules_arg(options, "all");
- } else if (skip_prefix(arg, "--ignore-submodules=", &arg)) {
+ else if (skip_to_optional_arg_default(arg, "--ignore-submodules", &arg, "all")) {
options->flags.override_submodule_config = 1;
handle_ignore_submodules_arg(options, arg);
- } else if (!strcmp(arg, "--submodule"))
- options->submodule_format = DIFF_SUBMODULE_LOG;
- else if (skip_prefix(arg, "--submodule=", &arg))
+ } else if (skip_to_optional_arg_default(arg, "--submodule", &arg, "log"))
return parse_submodule_opt(options, arg);
else if (skip_prefix(arg, "--ws-error-highlight=", &arg))
return parse_ws_error_highlight_opt(options, arg);
return 0;
}
+/*
+ * If the string "str" is the same as the string in "prefix", then the "arg"
+ * parameter is set to the "def" parameter and 1 is returned.
+ * If the string "str" begins with the string found in "prefix" and then a
+ * "=" sign, then the "arg" parameter is set to "str + strlen(prefix) + 1"
+ * (i.e., to the point in the string right after the prefix and the "=" sign),
+ * and 1 is returned.
+ *
+ * Otherwise, return 0 and leave "arg" untouched.
+ *
+ * When we accept both a "--key" and a "--key=<val>" option, this function
+ * can be used instead of !strcmp(arg, "--key") and then
+ * skip_prefix(arg, "--key=", &arg) to parse such an option.
+ */
+int skip_to_optional_arg_default(const char *str, const char *prefix,
+ const char **arg, const char *def);
+
+static inline int skip_to_optional_arg(const char *str, const char *prefix,
+ const char **arg)
+{
+ return skip_to_optional_arg_default(str, prefix, arg, "");
+}
+
/*
* Like skip_prefix, but promises never to read past "len" bytes of the input
* buffer, and returns the remaining number of bytes in "out" via "outlen".
git commit -m one
'
-check_diff() {
-expect=$1; shift
-cat >expected <<EOF
-diff --git a/$expect b/$expect
-new file mode 100644
-index 0000000..25c05ef
---- /dev/null
-+++ b/$expect
-@@ -0,0 +1 @@
-+other content
-EOF
-test_expect_success "-p $*" "
- git diff -p $* HEAD^ >actual &&
- test_cmp expected actual
-"
+check_diff () {
+ dir=$1
+ shift
+ expect=$1
+ shift
+ cat >expected <<-EOF
+ diff --git a/$expect b/$expect
+ new file mode 100644
+ index 0000000..25c05ef
+ --- /dev/null
+ +++ b/$expect
+ @@ -0,0 +1 @@
+ +other content
+ EOF
+ test_expect_success "-p $*" "
+ git -C '$dir' diff -p $* HEAD^ >actual &&
+ test_cmp expected actual
+ "
}
-check_numstat() {
-expect=$1; shift
-cat >expected <<EOF
-1 0 $expect
-EOF
-test_expect_success "--numstat $*" "
- echo '1 0 $expect' >expected &&
- git diff --numstat $* HEAD^ >actual &&
- test_cmp expected actual
-"
+check_numstat () {
+ dir=$1
+ shift
+ expect=$1
+ shift
+ cat >expected <<-EOF
+ 1 0 $expect
+ EOF
+ test_expect_success "--numstat $*" "
+ echo '1 0 $expect' >expected &&
+ git -C '$dir' diff --numstat $* HEAD^ >actual &&
+ test_cmp expected actual
+ "
}
-check_stat() {
-expect=$1; shift
-cat >expected <<EOF
- $expect | 1 +
- 1 file changed, 1 insertion(+)
-EOF
-test_expect_success "--stat $*" "
- git diff --stat $* HEAD^ >actual &&
- test_i18ncmp expected actual
-"
+check_stat () {
+ dir=$1
+ shift
+ expect=$1
+ shift
+ cat >expected <<-EOF
+ $expect | 1 +
+ 1 file changed, 1 insertion(+)
+ EOF
+ test_expect_success "--stat $*" "
+ git -C '$dir' diff --stat $* HEAD^ >actual &&
+ test_i18ncmp expected actual
+ "
}
-check_raw() {
-expect=$1; shift
-cat >expected <<EOF
-:000000 100644 0000000000000000000000000000000000000000 25c05ef3639d2d270e7fe765a67668f098092bc5 A $expect
-EOF
-test_expect_success "--raw $*" "
- git diff --no-abbrev --raw $* HEAD^ >actual &&
- test_cmp expected actual
-"
+check_raw () {
+ dir=$1
+ shift
+ expect=$1
+ shift
+ cat >expected <<-EOF
+ :000000 100644 0000000000000000000000000000000000000000 25c05ef3639d2d270e7fe765a67668f098092bc5 A $expect
+ EOF
+ test_expect_success "--raw $*" "
+ git -C '$dir' diff --no-abbrev --raw $* HEAD^ >actual &&
+ test_cmp expected actual
+ "
}
-for type in diff numstat stat raw; do
- check_$type file2 --relative=subdir/
- check_$type file2 --relative=subdir
- check_$type dir/file2 --relative=sub
+for type in diff numstat stat raw
+do
+ check_$type . file2 --relative=subdir/
+ check_$type . file2 --relative=subdir
+ check_$type subdir file2 --relative
+ check_$type . dir/file2 --relative=sub
done
test_done