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Merge branch 'ab/align-parse-options-help'
When "git cmd -h" shows more than one line of usage text (e.g. the cmd subcommand may take sub-sub-command), parse-options API learned to align these lines, even across i18n/l10n. * ab/align-parse-options-help: parse-options: properly align continued usage output git rev-parse --parseopt tests: add more usagestr tests send-pack: properly use parse_options() API for usage string parse-options API users: align usage output in C-strings
This commit is contained in:
Junio C Hamano
commit
d7bc852151
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@ -9,10 +9,10 @@ git-send-pack - Push objects over Git protocol to another repository
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SYNOPSIS
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--------
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[verse]
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'git send-pack' [--all] [--dry-run] [--force] [--receive-pack=<git-receive-pack>]
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'git send-pack' [--dry-run] [--force] [--receive-pack=<git-receive-pack>]
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[--verbose] [--thin] [--atomic]
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[--[no-]signed|--signed=(true|false|if-asked)]
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[<host>:]<directory> [<ref>...]
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[<host>:]<directory> (--all | <ref>...)
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DESCRIPTION
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-----------
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@ -7,8 +7,8 @@
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static const char * const ls_remote_usage[] = {
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N_("git ls-remote [--heads] [--tags] [--refs] [--upload-pack=<exec>]\n"
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" [-q | --quiet] [--exit-code] [--get-url]\n"
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" [--symref] [<repository> [<refs>...]]"),
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" [-q | --quiet] [--exit-code] [--get-url]\n"
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" [--symref] [<repository> [<refs>...]]"),
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NULL
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};
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@ -17,10 +17,10 @@
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#include "protocol.h"
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static const char * const send_pack_usage[] = {
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N_("git send-pack [--all | --mirror] [--dry-run] [--force] "
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"[--receive-pack=<git-receive-pack>] [--verbose] [--thin] [--atomic] "
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"[<host>:]<directory> [<ref>...]\n"
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" --all and explicit <ref> specification are mutually exclusive."),
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N_("git send-pack [--mirror] [--dry-run] [--force]\n"
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" [--receive-pack=<git-receive-pack>]\n"
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" [--verbose] [--thin] [--atomic]\n"
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" [<host>:]<directory> (--all | <ref>...)"),
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NULL,
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};
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@ -11,9 +11,9 @@
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static const char* show_branch_usage[] = {
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N_("git show-branch [-a | --all] [-r | --remotes] [--topo-order | --date-order]\n"
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" [--current] [--color[=<when>] | --no-color] [--sparse]\n"
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" [--more=<n> | --list | --independent | --merge-base]\n"
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" [--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]"),
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" [--current] [--color[=<when>] | --no-color] [--sparse]\n"
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" [--more=<n> | --list | --independent | --merge-base]\n"
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" [--no-name | --sha1-name] [--topics] [(<rev> | <glob>)...]"),
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N_("git show-branch (-g | --reflog)[=<n>[,<base>]] [--list] [<ref>]"),
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NULL
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};
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@ -85,7 +85,7 @@ static const char * const git_stash_push_usage[] = {
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static const char * const git_stash_save_usage[] = {
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N_("git stash save [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n"
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" [-u|--include-untracked] [-a|--all] [<message>]"),
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" [-u|--include-untracked] [-a|--all] [<message>]"),
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NULL
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};
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@ -23,10 +23,10 @@
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static const char * const git_tag_usage[] = {
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N_("git tag [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>]\n"
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"\t\t<tagname> [<head>]"),
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" <tagname> [<head>]"),
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N_("git tag -d <tagname>..."),
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N_("git tag -l [-n[<num>]] [--contains <commit>] [--no-contains <commit>] [--points-at <object>]\n"
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"\t\t[--format=<format>] [--merged <commit>] [--no-merged <commit>] [<pattern>...]"),
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" [--format=<format>] [--merged <commit>] [--no-merged <commit>] [<pattern>...]"),
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N_("git tag -v [--format=<format>] <tagname>..."),
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NULL
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};
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@ -904,25 +904,77 @@ static int usage_with_options_internal(struct parse_opt_ctx_t *ctx,
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FILE *outfile = err ? stderr : stdout;
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int need_newline;
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const char *usage_prefix = _("usage: %s");
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/*
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* The translation could be anything, but we can count on
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* msgfmt(1)'s --check option to have asserted that "%s" is in
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* the translation. So compute the length of the "usage: "
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* part. We are assuming that the translator wasn't overly
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* clever and used e.g. "%1$s" instead of "%s", there's only
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* one "%s" in "usage_prefix" above, so there's no reason to
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* do so even with a RTL language.
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*/
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size_t usage_len = strlen(usage_prefix) - strlen("%s");
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/*
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* TRANSLATORS: the colon here should align with the
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* one in "usage: %s" translation.
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*/
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const char *or_prefix = _(" or: %s");
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/*
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* TRANSLATORS: You should only need to translate this format
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* string if your language is a RTL language (e.g. Arabic,
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* Hebrew etc.), not if it's a LTR language (e.g. German,
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* Russian, Chinese etc.).
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*
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* When a translated usage string has an embedded "\n" it's
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* because options have wrapped to the next line. The line
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* after the "\n" will then be padded to align with the
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* command name, such as N_("git cmd [opt]\n<8
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* spaces>[opt2]"), where the 8 spaces are the same length as
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* "git cmd ".
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*
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* This format string prints out that already-translated
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* line. The "%*s" is whitespace padding to account for the
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* padding at the start of the line that we add in this
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* function. The "%s" is a line in the (hopefully already
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* translated) N_() usage string, which contained embedded
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* newlines before we split it up.
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*/
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const char *usage_continued = _("%*s%s");
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const char *prefix = usage_prefix;
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int saw_empty_line = 0;
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if (!usagestr)
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return PARSE_OPT_HELP;
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if (!err && ctx && ctx->flags & PARSE_OPT_SHELL_EVAL)
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fprintf(outfile, "cat <<\\EOF\n");
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fprintf_ln(outfile, _("usage: %s"), _(*usagestr++));
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while (*usagestr && **usagestr)
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/*
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* TRANSLATORS: the colon here should align with the
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* one in "usage: %s" translation.
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*/
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fprintf_ln(outfile, _(" or: %s"), _(*usagestr++));
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while (*usagestr) {
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if (**usagestr)
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fprintf_ln(outfile, _(" %s"), _(*usagestr));
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else
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fputc('\n', outfile);
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usagestr++;
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const char *str = _(*usagestr++);
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struct string_list list = STRING_LIST_INIT_DUP;
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unsigned int j;
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if (!saw_empty_line && !*str)
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saw_empty_line = 1;
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string_list_split(&list, str, '\n', -1);
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for (j = 0; j < list.nr; j++) {
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const char *line = list.items[j].string;
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if (saw_empty_line && *line)
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fprintf_ln(outfile, _(" %s"), line);
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else if (saw_empty_line)
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fputc('\n', outfile);
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else if (!j)
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fprintf_ln(outfile, prefix, line);
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else
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fprintf_ln(outfile, usage_continued,
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(int)usage_len, "", line);
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}
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string_list_clear(&list, 0);
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prefix = or_prefix;
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}
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need_newline = 1;
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@ -282,4 +282,58 @@ test_expect_success 'test --parseopt --stuck-long and short option with unset op
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test_cmp expect output
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'
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test_expect_success 'test --parseopt help output: "wrapped" options normal "or:" lines' '
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sed -e "s/^|//" >spec <<-\EOF &&
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|cmd [--some-option]
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| [--another-option]
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|cmd [--yet-another-option]
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|--
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|h,help show the help
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EOF
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sed -e "s/^|//" >expect <<-\END_EXPECT &&
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|cat <<\EOF
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|usage: cmd [--some-option]
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| or: [--another-option]
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| or: cmd [--yet-another-option]
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| -h, --help show the help
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|EOF
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END_EXPECT
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test_must_fail git rev-parse --parseopt -- -h >out <spec >actual &&
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test_cmp expect actual
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'
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test_expect_success 'test --parseopt help output: multi-line blurb after empty line' '
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sed -e "s/^|//" >spec <<-\EOF &&
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|cmd [--some-option]
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| [--another-option]
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|multi
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|line
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|blurb
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|--
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|h,help show the help
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EOF
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sed -e "s/^|//" >expect <<-\END_EXPECT &&
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|cat <<\EOF
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|usage: cmd [--some-option]
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| or: [--another-option]
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| multi
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| line
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| blurb
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| -h, --help show the help
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|EOF
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END_EXPECT
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test_must_fail git rev-parse --parseopt -- -h >out <spec >actual &&
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test_cmp expect actual
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'
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test_done
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