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builtin/config.c: treat type specifiers singularly

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Internally, we represent `git config`'s type specifiers as a bitset
using OPT_BIT. 'bool' is 1<<0, 'int' is 1<<1, and so on. This technique
allows for the representation of multiple type specifiers in the `int
types` field, but this multi-representation is left unused.

In fact, `git config` will not accept multiple type specifiers at a
time, as indicated by:

  $ git config --int --bool some.section
  error: only one type at a time.

This patch uses `OPT_SET_INT` to prefer the _last_ mentioned type
specifier, so that the above command would instead be valid, and a
synonym of:

  $ git config --bool some.section

This change is motivated by two urges: (1) it does not make sense to
represent a singular type specifier internally as a bitset, only to
complain when there are multiple bits in the set. `OPT_SET_INT` is more
well-suited to this task than `OPT_BIT` is. (2) a future patch will
introduce `--type=<type>`, and we would like not to complain in the
following situation:

  $ git config --int --type=int

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Taylor Blau 2018-04-09 15:46:54 -07:00 committed by Junio C Hamano
parent 03df495947
commit 0a8950be5d
2 changed files with 33 additions and 27 deletions
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49
builtin/config.c
View file

@ -25,7 +25,7 @@ static char term = '\n';
static int use_global_config, use_system_config, use_local_config;
static struct git_config_source given_config_source;
static int actions, types;
static int actions, type;
static int end_null;
static int respect_includes_opt = -1;
static struct config_options config_options;
@ -55,11 +55,11 @@ static int show_origin;
#define PAGING_ACTIONS (ACTION_LIST | ACTION_GET_ALL | \
ACTION_GET_REGEXP | ACTION_GET_URLMATCH)
#define TYPE_BOOL (1<<0)
#define TYPE_INT (1<<1)
#define TYPE_BOOL_OR_INT (1<<2)
#define TYPE_PATH (1<<3)
#define TYPE_EXPIRY_DATE (1<<4)
#define TYPE_BOOL 1
#define TYPE_INT 2
#define TYPE_BOOL_OR_INT 3
#define TYPE_PATH 4
#define TYPE_EXPIRY_DATE 5
static struct option builtin_config_options[] = {
OPT_GROUP(N_("Config file location")),
@ -84,11 +84,11 @@ static struct option builtin_config_options[] = {
OPT_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
OPT_GROUP(N_("Type")),
OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
OPT_BIT(0, "expiry-date", &types, N_("value is an expiry date"), TYPE_EXPIRY_DATE),
OPT_SET_INT(0, "bool", &type, N_("value is \"true\" or \"false\""), TYPE_BOOL),
OPT_SET_INT(0, "int", &type, N_("value is decimal number"), TYPE_INT),
OPT_SET_INT(0, "bool-or-int", &type, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
OPT_SET_INT(0, "path", &type, N_("value is a path (file or directory name)"), TYPE_PATH),
OPT_SET_INT(0, "expiry-date", &type, N_("value is an expiry date"), TYPE_EXPIRY_DATE),
OPT_GROUP(N_("Other")),
OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
@ -149,26 +149,26 @@ static int format_config(struct strbuf *buf, const char *key_, const char *value
if (show_keys)
strbuf_addch(buf, key_delim);
if (types == TYPE_INT)
if (type == TYPE_INT)
strbuf_addf(buf, "%"PRId64,
git_config_int64(key_, value_ ? value_ : ""));
else if (types == TYPE_BOOL)
else if (type == TYPE_BOOL)
strbuf_addstr(buf, git_config_bool(key_, value_) ?
"true" : "false");
else if (types == TYPE_BOOL_OR_INT) {
else if (type == TYPE_BOOL_OR_INT) {
int is_bool, v;
v = git_config_bool_or_int(key_, value_, &is_bool);
if (is_bool)
strbuf_addstr(buf, v ? "true" : "false");
else
strbuf_addf(buf, "%d", v);
} else if (types == TYPE_PATH) {
} else if (type == TYPE_PATH) {
const char *v;
if (git_config_pathname(&v, key_, value_) < 0)
return -1;
strbuf_addstr(buf, v);
free((char *)v);
} else if (types == TYPE_EXPIRY_DATE) {
} else if (type == TYPE_EXPIRY_DATE) {
timestamp_t t;
if (git_config_expiry_date(&t, key_, value_) < 0)
return -1;
@ -287,7 +287,7 @@ static char *normalize_value(const char *key, const char *value)
if (!value)
return NULL;
if (types == 0 || types == TYPE_PATH || types == TYPE_EXPIRY_DATE)
if (type == 0 || type == TYPE_PATH || type == TYPE_EXPIRY_DATE)
/*
* We don't do normalization for TYPE_PATH here: If
* the path is like ~/foobar/, we prefer to store
@ -296,11 +296,11 @@ static char *normalize_value(const char *key, const char *value)
* Also don't do normalization for expiry dates.
*/
return xstrdup(value);
if (types == TYPE_INT)
if (type == TYPE_INT)
return xstrfmt("%"PRId64, git_config_int64(key, value));
if (types == TYPE_BOOL)
if (type == TYPE_BOOL)
return xstrdup(git_config_bool(key, value) ? "true" : "false");
if (types == TYPE_BOOL_OR_INT) {
if (type == TYPE_BOOL_OR_INT) {
int is_bool, v;
v = git_config_bool_or_int(key, value, &is_bool);
if (!is_bool)
@ -309,7 +309,7 @@ static char *normalize_value(const char *key, const char *value)
return xstrdup(v ? "true" : "false");
}
die("BUG: cannot normalize type %d", types);
die("BUG: cannot normalize type %d", type);
}
static int get_color_found;
@ -566,12 +566,7 @@ int cmd_config(int argc, const char **argv, const char *prefix)
key_delim = '\n';
}
if (HAS_MULTI_BITS(types)) {
error("only one type at a time.");
usage_with_options(builtin_config_usage, builtin_config_options);
}
if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && types) {
if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && type) {
error("--get-color and variable type are incoherent");
usage_with_options(builtin_config_usage, builtin_config_options);
}

11
t/t1300-repo-config.sh
View file

@ -1611,4 +1611,15 @@ test_expect_success '--local requires a repo' '
test_expect_code 128 nongit git config --local foo.bar
'
cat >.git/config <<-\EOF &&
[core]
number = 10
EOF
test_expect_success 'later legacy specifiers are given precedence' '
git config --bool --int core.number >actual &&
echo 10 >expect &&
test_cmp expect actual
'
test_done