git/t/t1502-rev-parse-parseopt.sh
Junio C Hamano af465af8de parse-options: detect attempt to add a duplicate short option name
It is easy to overlook an already assigned single-letter option name
and try to use it for a new one.  Help the developer to catch it
before such a mistake escapes the lab.

This retroactively forbids any short option name (which is defined
to be of type "int") outside the ASCII printable range.  We might
want to do one of two things:

 - tighten the type of short_name member to 'char', and further
   update optbug() to protect it against doing "'%c'" on a funny
   value, e.g. negative or above 127.

 - drop the check (even the "duplicate" check) for an option whose
   short_name is either negative or above 255, to allow clever folks
   to take advantage of the fact that such a short_name cannot be
   parsed from the command line and the member can be used to store
   some extra information.

Helped-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-09-04 11:00:28 -07:00

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#!/bin/sh
test_description='test git rev-parse --parseopt'
. ./test-lib.sh
sed -e 's/^|//' >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
|
|Argument hints
| -B <arg> short option required argument
| --bar2 <arg> long option required argument
| -e, --fuz <with-space>
| short and long option required argument
| -s[<some>] short option optional argument
| --long[=<data>] long option optional argument
| -g, --fluf[=<path>] short and long option optional argument
| --longest <very-long-argument-hint>
| a very long argument hint
|
|Extras
| --extra1 line above used to cause a segfault but no longer does
|
|EOF
END_EXPECT
sed -e 's/^|//' >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
|
| Argument hints
|B=arg short option required argument
|bar2=arg long option required argument
|e,fuz=with-space short and long option required argument
|s?some short option optional argument
|long?data long option optional argument
|g,fluf?path short and long option optional argument
|longest=very-long-argument-hint a very long argument hint
|
|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