diff options
| -rw-r--r-- | .gitignore | 1 | ||||
| -rw-r--r-- | Makefile | 1 | ||||
| -rw-r--r-- | builtin.h | 1 | ||||
| -rw-r--r-- | builtin/env--helper.c | 95 | ||||
| -rw-r--r-- | git.c | 1 | ||||
| -rwxr-xr-x | t/t0017-env-helper.sh | 83 |
6 files changed, 182 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore index 4470d7cfc0..1f7a83fb3c 100644 --- a/.gitignore +++ b/.gitignore @@ -58,6 +58,7 @@ /git-difftool /git-difftool--helper /git-describe +/git-env--helper /git-fast-export /git-fast-import /git-fetch @@ -1059,6 +1059,7 @@ BUILTIN_OBJS += builtin/diff-index.o BUILTIN_OBJS += builtin/diff-tree.o BUILTIN_OBJS += builtin/diff.o BUILTIN_OBJS += builtin/difftool.o +BUILTIN_OBJS += builtin/env--helper.o BUILTIN_OBJS += builtin/fast-export.o BUILTIN_OBJS += builtin/fetch-pack.o BUILTIN_OBJS += builtin/fetch.o @@ -160,6 +160,7 @@ int cmd_diff_index(int argc, const char **argv, const char *prefix); int cmd_diff(int argc, const char **argv, const char *prefix); int cmd_diff_tree(int argc, const char **argv, const char *prefix); int cmd_difftool(int argc, const char **argv, const char *prefix); +int cmd_env__helper(int argc, const char **argv, const char *prefix); int cmd_fast_export(int argc, const char **argv, const char *prefix); int cmd_fetch(int argc, const char **argv, const char *prefix); int cmd_fetch_pack(int argc, const char **argv, const char *prefix); diff --git a/builtin/env--helper.c b/builtin/env--helper.c new file mode 100644 index 0000000000..1083c0f707 --- /dev/null +++ b/builtin/env--helper.c @@ -0,0 +1,95 @@ +#include "builtin.h" +#include "config.h" +#include "parse-options.h" + +static char const * const env__helper_usage[] = { + N_("git env--helper --type=[bool|ulong] <options> <env-var>"), + NULL +}; + +enum { + ENV_HELPER_TYPE_BOOL = 1, + ENV_HELPER_TYPE_ULONG +} cmdmode = 0; + +static int option_parse_type(const struct option *opt, const char *arg, + int unset) +{ + if (!strcmp(arg, "bool")) + cmdmode = ENV_HELPER_TYPE_BOOL; + else if (!strcmp(arg, "ulong")) + cmdmode = ENV_HELPER_TYPE_ULONG; + else + die(_("unrecognized --type argument, %s"), arg); + + return 0; +} + +int cmd_env__helper(int argc, const char **argv, const char *prefix) +{ + int exit_code = 0; + const char *env_variable = NULL; + const char *env_default = NULL; + int ret; + int ret_int, default_int; + unsigned long ret_ulong, default_ulong; + struct option opts[] = { + OPT_CALLBACK_F(0, "type", &cmdmode, N_("type"), + N_("value is given this type"), PARSE_OPT_NONEG, + option_parse_type), + OPT_STRING(0, "default", &env_default, N_("value"), + N_("default for git_env_*(...) to fall back on")), + OPT_BOOL(0, "exit-code", &exit_code, + N_("be quiet only use git_env_*() value as exit code")), + OPT_END(), + }; + + argc = parse_options(argc, argv, prefix, opts, env__helper_usage, + PARSE_OPT_KEEP_UNKNOWN); + if (env_default && !*env_default) + usage_with_options(env__helper_usage, opts); + if (!cmdmode) + usage_with_options(env__helper_usage, opts); + if (argc != 1) + usage_with_options(env__helper_usage, opts); + env_variable = argv[0]; + + switch (cmdmode) { + case ENV_HELPER_TYPE_BOOL: + if (env_default) { + default_int = git_parse_maybe_bool(env_default); + if (default_int == -1) { + error(_("option `--default' expects a boolean value with `--type=bool`, not `%s`"), + env_default); + usage_with_options(env__helper_usage, opts); + } + } else { + default_int = 0; + } + ret_int = git_env_bool(env_variable, default_int); + if (!exit_code) + puts(ret_int ? "true" : "false"); + ret = ret_int; + break; + case ENV_HELPER_TYPE_ULONG: + if (env_default) { + if (!git_parse_ulong(env_default, &default_ulong)) { + error(_("option `--default' expects an unsigned long value with `--type=ulong`, not `%s`"), + env_default); + usage_with_options(env__helper_usage, opts); + } + } else { + default_ulong = 0; + } + ret_ulong = git_env_ulong(env_variable, default_ulong); + if (!exit_code) + printf("%lu\n", ret_ulong); + ret = ret_ulong; + break; + default: + BUG("unknown <type> value"); + break; + } + + return !ret; +} @@ -500,6 +500,7 @@ static struct cmd_struct commands[] = { { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, { "difftool", cmd_difftool, RUN_SETUP_GENTLY }, + { "env--helper", cmd_env__helper }, { "fast-export", cmd_fast_export, RUN_SETUP }, { "fetch", cmd_fetch, RUN_SETUP }, { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, diff --git a/t/t0017-env-helper.sh b/t/t0017-env-helper.sh new file mode 100755 index 0000000000..709bbbd275 --- /dev/null +++ b/t/t0017-env-helper.sh @@ -0,0 +1,83 @@ +#!/bin/sh + +test_description='test env--helper' + +. ./test-lib.sh + + +test_expect_success 'env--helper usage' ' + test_must_fail git env--helper && + test_must_fail git env--helper --type=bool && + test_must_fail git env--helper --type=ulong && + test_must_fail git env--helper --type=bool && + test_must_fail git env--helper --type=bool --default && + test_must_fail git env--helper --type=bool --default= && + test_must_fail git env--helper --defaultxyz +' + +test_expect_success 'env--helper bad default values' ' + test_must_fail git env--helper --type=bool --default=1xyz MISSING && + test_must_fail git env--helper --type=ulong --default=1xyz MISSING +' + +test_expect_success 'env--helper --type=bool' ' + # Test various --default bool values + echo true >expected && + git env--helper --type=bool --default=1 MISSING >actual && + test_cmp expected actual && + git env--helper --type=bool --default=yes MISSING >actual && + test_cmp expected actual && + git env--helper --type=bool --default=true MISSING >actual && + test_cmp expected actual && + echo false >expected && + test_must_fail git env--helper --type=bool --default=0 MISSING >actual && + test_cmp expected actual && + test_must_fail git env--helper --type=bool --default=no MISSING >actual && + test_cmp expected actual && + test_must_fail git env--helper --type=bool --default=false MISSING >actual && + test_cmp expected actual && + + # No output with --exit-code + git env--helper --type=bool --default=true --exit-code MISSING >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err && + test_must_fail git env--helper --type=bool --default=false --exit-code MISSING >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err && + + # Existing variable + EXISTS=true git env--helper --type=bool --default=false --exit-code EXISTS >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err && + test_must_fail \ + env EXISTS=false \ + git env--helper --type=bool --default=true --exit-code EXISTS >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err +' + +test_expect_success 'env--helper --type=ulong' ' + echo 1234567890 >expected && + git env--helper --type=ulong --default=1234567890 MISSING >actual.out 2>actual.err && + test_cmp expected actual.out && + test_must_be_empty actual.err && + + echo 0 >expected && + test_must_fail git env--helper --type=ulong --default=0 MISSING >actual && + test_cmp expected actual && + + git env--helper --type=ulong --default=1234567890 --exit-code MISSING >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err && + + EXISTS=1234567890 git env--helper --type=ulong --default=0 EXISTS --exit-code >actual.out 2>actual.err && + test_must_be_empty actual.out && + test_must_be_empty actual.err && + + echo 1234567890 >expected && + EXISTS=1234567890 git env--helper --type=ulong --default=0 EXISTS >actual.out 2>actual.err && + test_cmp expected actual.out && + test_must_be_empty actual.err +' + +test_done |