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git-commit-vandalism/t/t0040-parse-options.sh
René Scharfe 0f1930c587 parse-options: allow positivation of options starting, with no- 
Long options can be negated by adding no- right after the leading
two dashes. This is useful e.g. to override options set by aliases.

For options that are defined to start with no- already, this looks
a bit funny. Allow such options to also be negated by removing the
prefix.

The following thirteen options are affected:

	apply          --no-add
	bisect--helper --no-checkout
	checkout-index --no-create
	clone          --no-checkout --no-hardlinks
	commit         --no-verify   --no-post-rewrite
	format-patch   --no-binary
	hash-object    --no-filters
	read-tree      --no-sparse-checkout
	revert         --no-commit
	show-branch    --no-name
	update-ref     --no-deref

The following five are NOT affected because they are defined with
PARSE_OPT_NONEG or the non-negated version is defined as well:

	branch       --no-merged
	format-patch --no-stat             --no-numbered
	update-index --no-assume-unchanged --no-skip-worktree

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-02-26 15:32:53 -08:00

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#!/bin/sh
#
# Copyright (c) 2007 Johannes Schindelin
#
test_description='our own option parser'
. ./test-lib.sh
cat > expect << EOF
usage: test-parse-options <options>
--yes get a boolean
-D, --no-doubt begins with 'no-'
-B, --no-fear be brave
-b, --boolean increment by one
-4, --or4 bitwise-or boolean with ...0100
--neg-or4 same as --no-or4
-i, --integer <n> get a integer
-j <n> get a integer, too
--set23 set integer to 23
-t <time> get timestamp of <time>
-L, --length <str> get length of <str>
-F, --file <file> set file to <file>
String options
-s, --string <string>
get a string
--string2 <str> get another string
--st <st> get another string (pervert ordering)
-o <str> get another string
--default-string set string to default
--list <str> add str to list
Magic arguments
--quux means --quux
-NUM set integer to NUM
+ same as -b
--ambiguous positive ambiguity
--no-ambiguous negative ambiguity
Standard options
--abbrev[=<n>] use <n> digits to display SHA-1s
-v, --verbose be verbose
-n, --dry-run dry run
-q, --quiet be quiet
EOF
test_expect_success 'test help' '
test_must_fail test-parse-options -h > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
mv expect expect.err
cat >expect.template <<EOF
boolean: 0
integer: 0
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
check() {
what="$1" &&
shift &&
expect="$1" &&
shift &&
sed "s/^$what .*/$what $expect/" <expect.template >expect &&
test-parse-options $* >output 2>output.err &&
test ! -s output.err &&
test_cmp expect output
}
check_unknown() {
case "$1" in
--*)
echo error: unknown option \`${1#--}\' >expect ;;
-*)
echo error: unknown switch \`${1#-}\' >expect ;;
esac &&
cat expect.err >>expect &&
test_must_fail test-parse-options $* >output 2>output.err &&
test ! -s output &&
test_cmp expect output.err
}
test_expect_success 'OPT_BOOL() #1' 'check boolean: 1 --yes'
test_expect_success 'OPT_BOOL() #2' 'check boolean: 1 --no-doubt'
test_expect_success 'OPT_BOOL() #3' 'check boolean: 1 -D'
test_expect_success 'OPT_BOOL() #4' 'check boolean: 1 --no-fear'
test_expect_success 'OPT_BOOL() #5' 'check boolean: 1 -B'
test_expect_success 'OPT_BOOL() is idempotent #1' 'check boolean: 1 --yes --yes'
test_expect_success 'OPT_BOOL() is idempotent #2' 'check boolean: 1 -DB'
test_expect_success 'OPT_BOOL() negation #1' 'check boolean: 0 -D --no-yes'
test_expect_success 'OPT_BOOL() negation #2' 'check boolean: 0 -D --no-no-doubt'
test_expect_success 'OPT_BOOL() no negation #1' 'check_unknown --fear'
test_expect_success 'OPT_BOOL() no negation #2' 'check_unknown --no-no-fear'
test_expect_success 'OPT_BOOL() positivation' 'check boolean: 0 -D --doubt'
cat > expect << EOF
boolean: 2
integer: 1729
timestamp: 0
string: 123
abbrev: 7
verbose: 2
quiet: no
dry run: yes
file: prefix/my.file
EOF
test_expect_success 'short options' '
test-parse-options -s123 -b -i 1729 -b -vv -n -F my.file \
> output 2> output.err &&
test_cmp expect output &&
test ! -s output.err
'
cat > expect << EOF
boolean: 2
integer: 1729
timestamp: 0
string: 321
abbrev: 10
verbose: 2
quiet: no
dry run: no
file: prefix/fi.le
EOF
test_expect_success 'long options' '
test-parse-options --boolean --integer 1729 --boolean --string2=321 \
--verbose --verbose --no-dry-run --abbrev=10 --file fi.le\
--obsolete > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'missing required value' '
test-parse-options -s;
test $? = 129 &&
test-parse-options --string;
test $? = 129 &&
test-parse-options --file;
test $? = 129
'
cat > expect << EOF
boolean: 1
integer: 13
timestamp: 0
string: 123
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
arg 00: a1
arg 01: b1
arg 02: --boolean
EOF
test_expect_success 'intermingled arguments' '
test-parse-options a1 --string 123 b1 --boolean -j 13 -- --boolean \
> output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect << EOF
boolean: 0
integer: 2
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'unambiguously abbreviated option' '
test-parse-options --int 2 --boolean --no-bo > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'unambiguously abbreviated option with "="' '
test-parse-options --int=2 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'ambiguously abbreviated option' '
test-parse-options --strin 123;
test $? = 129
'
cat > expect << EOF
boolean: 0
integer: 0
timestamp: 0
string: 123
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'non ambiguous option (after two options it abbreviates)' '
test-parse-options --st 123 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > typo.err << EOF
error: did you mean \`--boolean\` (with two dashes ?)
EOF
test_expect_success 'detect possible typos' '
test_must_fail test-parse-options -boolean > output 2> output.err &&
test ! -s output &&
test_cmp typo.err output.err
'
cat > expect <<EOF
boolean: 0
integer: 0
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
arg 00: --quux
EOF
test_expect_success 'keep some options as arguments' '
test-parse-options --quux > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect <<EOF
boolean: 0
integer: 0
timestamp: 1
string: default
abbrev: 7
verbose: 0
quiet: yes
dry run: no
file: (not set)
arg 00: foo
EOF
test_expect_success 'OPT_DATE() and OPT_SET_PTR() work' '
test-parse-options -t "1970-01-01 00:00:01 +0000" --default-string \
foo -q > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect <<EOF
Callback: "four", 0
boolean: 5
integer: 4
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'OPT_CALLBACK() and OPT_BIT() work' '
test-parse-options --length=four -b -4 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect <<EOF
Callback: "not set", 1
EOF
test_expect_success 'OPT_CALLBACK() and callback errors work' '
test_must_fail test-parse-options --no-length > output 2> output.err &&
test_cmp expect output &&
test_cmp expect.err output.err
'
cat > expect <<EOF
boolean: 1
integer: 23
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'OPT_BIT() and OPT_SET_INT() work' '
test-parse-options --set23 -bbbbb --no-or4 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'OPT_NEGBIT() and OPT_SET_INT() work' '
test-parse-options --set23 -bbbbb --neg-or4 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect <<EOF
boolean: 6
integer: 0
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'OPT_BIT() works' '
test-parse-options -bb --or4 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'OPT_NEGBIT() works' '
test-parse-options -bb --no-neg-or4 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
test_expect_success 'OPT_COUNTUP() with PARSE_OPT_NODASH works' '
test-parse-options + + + + + + > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat > expect <<EOF
boolean: 0
integer: 12345
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'OPT_NUMBER_CALLBACK() works' '
test-parse-options -12345 > output 2> output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat >expect <<EOF
boolean: 0
integer: 0
timestamp: 0
string: (not set)
abbrev: 7
verbose: 0
quiet: no
dry run: no
file: (not set)
EOF
test_expect_success 'negation of OPT_NONEG flags is not ambiguous' '
test-parse-options --no-ambig >output 2>output.err &&
test ! -s output.err &&
test_cmp expect output
'
cat >>expect <<'EOF'
list: foo
list: bar
list: baz
EOF
test_expect_success '--list keeps list of strings' '
test-parse-options --list foo --list=bar --list=baz >output &&
test_cmp expect output
'
test_expect_success '--no-list resets list' '
test-parse-options --list=other --list=irrelevant --list=options \
--no-list --list=foo --list=bar --list=baz >output &&
test_cmp expect output
'
test_done
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