[PATCH v2] config: improve error message for boolean config
From: Andrew Klotz via GitGitGadget <hidden>
Date: 2021-02-09 01:26:17
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Andrew Klotz <redacted> Currently invalid boolean config values return messages about 'bad numeric', which is slightly misleading when the error was due to a boolean value. We can improve the developer experience by returning a boolean error message when we know the value is neither a bool text or int. before with an invalid boolean value of `non-boolean`, its unclear what numeric is referring to:
fatal: bad numeric config value 'non-boolean' for 'commit.gpgsign': invalid unit
now the error message mentions `non-boolean` is a bad boolean value:
fatal: bad boolean config value 'non-boolean' for 'commit.gpgsign'
Signed-off-by: Andrew Klotz <redacted>
---
config: improve error message for boolean config
Currently invalid boolean config values return messages about 'bad
numeric', which I found misleading when the error was due to a boolean
string value. This change makes the error message reflect the boolean
value.
The current approach relies on GIT_TEST_GETTEXT_POISON being a boolean
value, moving its special case out from die_bad_number() and into
git_config_bool_or_int(). An alternative could be for die_bad_number()
to handle boolean values when erroring, although the function name might
need to change if it is handling non-numeric values.
changes since v1
* moved boolean error message change out of git_config_bool_or_int to
just in git_config_bool and added die_bad_boolean instead of
modifying die_bad_number.
Signed-off-by: Andrew Klotz agc.klotz@gmail.com
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-841%2FKlotzAndrew%2Fbetter_bool_errors-v2
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-841/KlotzAndrew/better_bool_errors-v2
Pull-Request: https://github.com/git/git/pull/841
Range-diff vs v1:
1: 689d84672422 ! 1: 32dd4ee1e373 config: improve error message for boolean config
@@ Commit message
boolean error message when we know the value is neither a bool text or
int.
- `GIT_TEST_GETTEXT_POISON` is a boolean so we no longer fail on
- evaluating it as an int in `git_config_int`. Because of that we can
- move the special translation case into the boolean config check where
- we are now failing with an updated message
-
before with an invalid boolean value of `non-boolean`, its unclear what
numeric is referring to: @@ Commit message
## config.c ##
@@ config.c: static void die_bad_number(const char *name, const char *value)
- if (!value)
- value = "";
-
-- if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
-- /*
-- * We explicitly *don't* use _() here since it would
-- * cause an infinite loop with _() needing to call
-- * use_gettext_poison(). This is why marked up
-- * translations with N_() above.
-- */
-- die(bad_numeric, value, name, error_type);
--
- if (!(cf && cf->name))
- die(_(bad_numeric), value, name, _(error_type));
-
-@@ config.c: int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
- return v;
}
- *is_bool = 0;
-- return git_config_int(name, value);
-+ if (git_parse_int(value, &v))
-+ return v;
-+
+ }
+
++NORETURN
++static void die_bad_bool(const char *name, const char *value)
++{
+ if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
+ /*
+ * We explicitly *don't* use _() here since it would
@@ config.c: int git_config_bool_or_int(const char *name, const char *value, int *i
+ die("bad boolean config value '%s' for '%s'", value, name);
+ else
+ die(_("bad boolean config value '%s' for '%s'"), value, name);
- }
++}
++
+ int git_config_int(const char *name, const char *value)
+ {
+ int ret;
+@@ config.c: int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
int git_config_bool(const char *name, const char *value)
+ {
+- int discard;
+- return !!git_config_bool_or_int(name, value, &discard);
++ int v = git_parse_maybe_bool(value);
++ if (0 <= v)
++ return v;
++ else
++ die_bad_bool(name, value);
+ }
+
+ int git_config_string(const char **dest, const char *var, const char *value)
## t/t0205-gettext-poison.sh ##
@@ t/t0205-gettext-poison.sh: test_expect_success 'eval_gettext: our eval_gettext() fallback has poison semant
2: 1e9caf1911d3 < -: ------------ formatting for error messages
config.c | 21 +++++++++++++++++++--
t/t0205-gettext-poison.sh | 2 +-
2 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/config.c b/config.c
index 4c0cf3a1c15d..5e4fd6b5561b 100644
--- a/config.c
+++ b/config.c
@@ -1030,6 +1030,20 @@ static void die_bad_number(const char *name, const char *value)
}
}
+NORETURN
+static void die_bad_bool(const char *name, const char *value)
+{
+ if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
+ /*
+ * We explicitly *don't* use _() here since it would
+ * cause an infinite loop with _() needing to call
+ * use_gettext_poison().
+ */
+ die("bad boolean config value '%s' for '%s'", value, name);
+ else
+ die(_("bad boolean config value '%s' for '%s'"), value, name);
+}
+
int git_config_int(const char *name, const char *value)
{
int ret;
@@ -1102,8 +1116,11 @@ int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
int git_config_bool(const char *name, const char *value)
{
- int discard;
- return !!git_config_bool_or_int(name, value, &discard);
+ int v = git_parse_maybe_bool(value);
+ if (0 <= v)
+ return v;
+ else
+ die_bad_bool(name, value);
}
int git_config_string(const char **dest, const char *var, const char *value)
diff --git a/t/t0205-gettext-poison.sh b/t/t0205-gettext-poison.sh
index f9fa16ad8363..b66d34c6f2bc 100755
--- a/t/t0205-gettext-poison.sh
+++ b/t/t0205-gettext-poison.sh
@@ -33,7 +33,7 @@ test_expect_success 'eval_gettext: our eval_gettext() fallback has poison semant
test_expect_success "gettext: invalid GIT_TEST_GETTEXT_POISON value doesn't infinitely loop" "
test_must_fail env GIT_TEST_GETTEXT_POISON=xyz git version 2>error &&
- grep \"fatal: bad numeric config value 'xyz' for 'GIT_TEST_GETTEXT_POISON': invalid unit\" error
+ grep \"fatal: bad boolean config value 'xyz' for 'GIT_TEST_GETTEXT_POISON'\" error
"
test_done
base-commit: 66e871b6647ffea61a77a0f82c7ef3415f1ee79c
--
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