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git/t/t1502-rev-parse-parseopt.sh
Jonathan Nieder 2b5ec01845 t1502 (rev-parse --parseopt): test exit code from "-h"
rev-parse --parseopt exits with code 129 (usage error) when asked
to dump usage with -h on behalf of another command.  Scripts can
take advantage of this to avoid trying to parse usage information
as though it were the regular output from some git command.

Noticed with an &&-chaining tester.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2010-11-09 15:00:10 -08:00

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#!/bin/sh
test_description='test git rev-parse --parseopt'
. ./test-lib.sh
cat > expect <<\END_EXPECT
cat <<\EOF
usage: some-command [options] <args>...
some-command does foo and bar!
-h, --help show the help
--foo some nifty option --foo
--bar ... some cool option --bar with an argument
An option group Header
-C[...] option C with an optional argument
Extras
--extra1 line above used to cause a segfault but no longer does
EOF
END_EXPECT
cat > optionspec << EOF
some-command [options] <args>...
some-command does foo and bar!
--
h,help show the help
foo some nifty option --foo
bar= some cool option --bar with an argument
An option group Header
C? option C with an optional argument
Extras
extra1 line above used to cause a segfault but no longer does
EOF
test_expect_success 'test --parseopt help output' '
test_expect_code 129 git rev-parse --parseopt -- -h > output < optionspec &&
test_cmp expect output
'
cat > expect <<EOF
set -- --foo --bar 'ham' -- 'arg'
EOF
test_expect_success 'test --parseopt' '
git rev-parse --parseopt -- --foo --bar=ham arg < optionspec > output &&
test_cmp expect output
'
test_expect_success 'test --parseopt with mixed options and arguments' '
git rev-parse --parseopt -- --foo arg --bar=ham < optionspec > output &&
test_cmp expect output
'
cat > expect <<EOF
set -- --foo -- 'arg' '--bar=ham'
EOF
test_expect_success 'test --parseopt with --' '
git rev-parse --parseopt -- --foo -- arg --bar=ham < optionspec > output &&
test_cmp expect output
'
test_expect_success 'test --parseopt --stop-at-non-option' '
git rev-parse --parseopt --stop-at-non-option -- --foo arg --bar=ham < optionspec > output &&
test_cmp expect output
'
cat > expect <<EOF
set -- --foo -- '--' 'arg' '--bar=ham'
EOF
test_expect_success 'test --parseopt --keep-dashdash' '
git rev-parse --parseopt --keep-dashdash -- --foo -- arg --bar=ham < optionspec > output &&
test_cmp expect output
'
cat >expect <<EOF
set -- --foo -- '--' 'arg' '--spam=ham'
EOF
test_expect_success 'test --parseopt --keep-dashdash --stop-at-non-option with --' '
git rev-parse --parseopt --keep-dashdash --stop-at-non-option -- --foo -- arg --spam=ham <optionspec >output &&
test_cmp expect output
'
cat > expect <<EOF
set -- --foo -- 'arg' '--spam=ham'
EOF
test_expect_success 'test --parseopt --keep-dashdash --stop-at-non-option without --' '
git rev-parse --parseopt --keep-dashdash --stop-at-non-option -- --foo arg --spam=ham <optionspec >output &&
test_cmp expect output
'
test_done