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https://github.com/git/git
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4a1baacd46
Since [1] there has been no reason for keeping "git env--helper" a built-in. The reason it was a built-in to begin with was to support the GIT_TEST_GETTEXT_POISON mode removed in that commit. I.e. unlike the rest of "test-tool" it would potentially be called by the installed git via "git-sh-i18n.sh". As none of that applies since [1] we should stop carrying this technical debt, and move it to t/helper/*. As this mostly move-only change shows this has the nice bonus that we'll stop wasting time translating the internal-only strings it emits. Even though this was a built-in, it was intentionally never documented, see its introduction in [2]. It never saw use outside of the test suite, except for the "GIT_TEST_GETTEXT_POISON" use-case noted above. 1.d162b25f95(tests: remove support for GIT_TEST_GETTEXT_POISON, 2021-01-20) 2.b4f207f339(env--helper: new undocumented builtin wrapping git_env_*(), 2019-06-21) Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Acked-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
#include "test-tool.h"
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#include "config.h"
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#include "parse-options.h"
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static char const * const env__helper_usage[] = {
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"test-tool env-helper --type=[bool|ulong] <options> <env-var>",
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NULL
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};
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enum cmdmode {
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ENV_HELPER_TYPE_BOOL = 1,
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ENV_HELPER_TYPE_ULONG
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};
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static int option_parse_type(const struct option *opt, const char *arg,
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int unset)
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{
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enum cmdmode *cmdmode = opt->value;
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BUG_ON_OPT_NEG(unset);
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if (!strcmp(arg, "bool"))
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*cmdmode = ENV_HELPER_TYPE_BOOL;
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else if (!strcmp(arg, "ulong"))
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*cmdmode = ENV_HELPER_TYPE_ULONG;
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else
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die("unrecognized --type argument, %s", arg);
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return 0;
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}
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int cmd__env_helper(int argc, const char **argv)
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{
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int exit_code = 0;
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const char *env_variable = NULL;
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const char *env_default = NULL;
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int ret;
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int ret_int, default_int;
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unsigned long ret_ulong, default_ulong;
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enum cmdmode cmdmode = 0;
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struct option opts[] = {
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OPT_CALLBACK_F(0, "type", &cmdmode, "type",
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"value is given this type", PARSE_OPT_NONEG,
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option_parse_type),
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OPT_STRING(0, "default", &env_default, "value",
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"default for git_env_*(...) to fall back on"),
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OPT_BOOL(0, "exit-code", &exit_code,
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"be quiet only use git_env_*() value as exit code"),
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OPT_END(),
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};
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argc = parse_options(argc, argv, NULL, opts, env__helper_usage,
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PARSE_OPT_KEEP_UNKNOWN_OPT);
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if (env_default && !*env_default)
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usage_with_options(env__helper_usage, opts);
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if (!cmdmode)
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usage_with_options(env__helper_usage, opts);
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if (argc != 1)
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usage_with_options(env__helper_usage, opts);
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env_variable = argv[0];
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switch (cmdmode) {
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case ENV_HELPER_TYPE_BOOL:
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if (env_default) {
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default_int = git_parse_maybe_bool(env_default);
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if (default_int == -1) {
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error("option `--default' expects a boolean value with `--type=bool`, not `%s`",
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env_default);
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usage_with_options(env__helper_usage, opts);
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}
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} else {
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default_int = 0;
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}
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ret_int = git_env_bool(env_variable, default_int);
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if (!exit_code)
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puts(ret_int ? "true" : "false");
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ret = ret_int;
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break;
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case ENV_HELPER_TYPE_ULONG:
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if (env_default) {
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if (!git_parse_ulong(env_default, &default_ulong)) {
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error("option `--default' expects an unsigned long value with `--type=ulong`, not `%s`",
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env_default);
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usage_with_options(env__helper_usage, opts);
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}
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} else {
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default_ulong = 0;
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}
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ret_ulong = git_env_ulong(env_variable, default_ulong);
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if (!exit_code)
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printf("%lu\n", ret_ulong);
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ret = ret_ulong;
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break;
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default:
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BUG("unknown <type> value");
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break;
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}
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return !ret;
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}
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