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parse-options: recognize abbreviated negated option with arg

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Giving an argument to an option that doesn't take one causes Git to
report that error specifically:

   $ git rm --dry-run=bogus
   error: option `dry-run' takes no value

The same is true when the option is negated or abbreviated:

   $ git rm --no-dry-run=bogus
   error: option `no-dry-run' takes no value

   $ git rm --dry=bogus
   error: option `dry-run' takes no value

Not so when doing both, though:

   $ git rm --no-dry=bogus
   error: unknown option `no-dry=bogus'
   usage: git rm [-f | --force] [-n] [-r] [--cached] [--ignore-unmatch]

(Rest of the usage message omitted.)

Improve consistency and usefulness of the error message by recognizing
abbreviated negated options even if they have a (most likely bogus)
argument.  With this patch we get:

   $ git rm --no-dry=bogus
   error: option `no-dry-run' takes no value

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe
2024-03-03 13:19:38 +01:00
committed by Junio C Hamano
parent 3c2a3fdc38
commit 289cb15541
2 changed files with 19 additions and 2 deletions
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16
t/t0040-parse-options.sh
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@ -210,6 +210,22 @@ test_expect_success 'superfluous value provided: boolean' '
test_cmp expect actual
'
test_expect_success 'superfluous value provided: boolean, abbreviated' '
cat >expect <<-\EOF &&
error: option `yes'\'' takes no value
EOF
test_expect_code 129 env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
test-tool parse-options --ye=hi 2>actual &&
test_cmp expect actual &&
cat >expect <<-\EOF &&
error: option `no-yes'\'' takes no value
EOF
test_expect_code 129 env GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=false \
test-tool parse-options --no-ye=hi 2>actual &&
test_cmp expect actual
'
test_expect_success 'superfluous value provided: cmdmode' '
cat >expect <<-\EOF &&
error: option `mode1'\'' takes no value