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_parse_help: Change to output first long option, or first short if not found.

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Makes things more consistent with the rest of our option offerings.
This commit is contained in:
Ville Skyttä 2011-04-27 15:29:00 +03:00
parent 7b2c2ebf9b
commit 5cd5993211
3 changed files with 24 additions and 8 deletions
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2
CHANGES
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@ -3,7 +3,7 @@ bash-completion (2.x)
[ Ville Skyttä ]
* Add pxz and reptyr completions.
* Improve aspell, gendiff, rsync, screen, smartctl, tar, xz, xzdec, and
generic long option completions.
generic parsed and long option completions.
* Try harder to find the correct perl executable to run the perl helper with.
* Drop rpm query support for rpm < 4.1.
* Split rpm and rpmbuild completions and improve them both.

16
bash_completion
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@ -747,8 +747,20 @@ _init_completion()
#
_parse_help()
{
$1 ${2:---help} 2>&1 | sed -e '/^[[:space:]]*-/!d' -e 's|[,/]| |g' | \
awk '{ print $1; if ($2 ~ /^-/) { print $2 } }' | sed -e 's|[<=[].*||'
# Print first found long option, or first short if not found.
$1 ${2:---help} 2>&1 | awk \
'{
if ($0 !~ /^[ \t]*-/) { next }
gsub("[,/]", " ");
x = -1;
for (i = 1; i <= NF; i++) {
if (sub("^(--.[^<[]*)", "&", $i)) { x = i ; break }
if ($i !~ /^-/) { break }
}
if (x == -1) { x = 1 }
sub("=.*", "", $x);
print $x
}'
}
# This function completes on signal names

14
test/unit/_parse_help.exp
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@ -38,11 +38,11 @@ assert_bash_list "-space" $cmd "one dash after space"
sync_after_int
set cmd {fn() { printf '%s\n' "-one -two dashes"; }; _parse_help fn}
assert_bash_list "-one\n-two" $cmd "two dashes, space-separated"
assert_bash_list "-one" $cmd "two dashes, space-separated"
sync_after_int
set cmd {fn() { printf '%s\n' "-one,-t dashes"; }; _parse_help fn}
assert_bash_list "-one\n-t" $cmd "two dashes, comma-separated"
assert_bash_list "-one" $cmd "two dashes, comma-separated"
sync_after_int
set cmd {fn() { printf '%s\n' "-one dash-inside"; }; _parse_help fn}
@ -58,15 +58,19 @@ assert_bash_list "--long-arg" $cmd "value not seen as option"
sync_after_int
set cmd {fn() { printf '%s\n' "--long-arg=-value,--opt2=val"; }; _parse_help fn}
assert_bash_list "--long-arg\n--opt2" $cmd "two options with values"
assert_bash_list "--long-arg" $cmd "two options with values"
sync_after_int
set cmd {fn() { printf '%s\n' "-m,--mirror"; }; _parse_help fn}
assert_bash_list "-m\n--mirror" $cmd "short + long"
assert_bash_list "--mirror" $cmd "short + long"
sync_after_int
set cmd {fn() { printf '%s\n' "-T/--upload-file"; }; _parse_help fn}
assert_bash_list "-T\n--upload-file" $cmd "short + long, slash separated"
assert_bash_list "--upload-file" $cmd "short + long, slash separated"
sync_after_int
set cmd {fn() { printf '%s\n' "-f, -F, --foo"; }; _parse_help fn}
assert_bash_list "--foo" $cmd "short + short + long"
sync_after_int