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git/t/t1502-rev-parse-parseopt.sh
Nicolas Vigier f8c872127d rev-parse --parseopt: add the --stuck-long mode
Add the --stuck-long option to output the options in their long form
if available, and with their arguments stuck.

Contrary to the default form (non stuck arguments and short options),
this can be parsed unambiguously when using options with optional
arguments :

 - in the non stuck form, when an option is taking an optional argument
   you cannot know if the next argument is its optional argument, or the
   next option.

 - the long options form allows to differentiate between an empty argument
   '--option=' and an unset argument '--option', which is not possible
   with short options.

Signed-off-by: Nicolas Vigier <boklm@mars-attacks.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-10-31 15:47:41 -07:00

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Executable file

#!/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
-b, --baz a short and long option
An option group Header
-C[...] option C with an optional argument
-d, --data[=...] short and long option 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
b,baz a short and long option
An option group Header
C? option C with an optional argument
d,data? short and long option 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_i18ncmp expect output
'
cat > expect <<EOF
set -- --foo --bar 'ham' -b -- 'arg'
EOF
test_expect_success 'test --parseopt' '
git rev-parse --parseopt -- --foo --bar=ham --baz 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 --baz < 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
'
cat > expect <<EOF
set -- --foo --bar='z' --baz -C'Z' --data='A' -- 'arg'
EOF
test_expect_success 'test --parseopt --stuck-long' '
git rev-parse --parseopt --stuck-long -- --foo --bar=z -b arg -CZ -dA <optionspec >output &&
test_cmp expect output
'
cat > expect <<EOF
set -- --data='' -C --baz -- 'arg'
EOF
test_expect_success 'test --parseopt --stuck-long and empty optional argument' '
git rev-parse --parseopt --stuck-long -- --data= arg -C -b <optionspec >output &&
test_cmp expect output
'
cat > expect <<EOF
set -- --data --baz -- 'arg'
EOF
test_expect_success 'test --parseopt --stuck-long and long option with unset optional argument' '
git rev-parse --parseopt --stuck-long -- --data arg -b <optionspec >output &&
test_cmp expect output
'
test_expect_success 'test --parseopt --stuck-long and short option with unset optional argument' '
git rev-parse --parseopt --stuck-long -- -d arg -b <optionspec >output &&
test_cmp expect output
'
test_done