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Allow fish comp to support trailing empty lines (#1284) 

Some programs may output extra empty lines after the directive.
Those lines must be ignored for fish shell completion to work.
zsh and bash are not impacted.

Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca>
Co-authored-by: Johannes Altmanninger <aclopte@gmail.com>

Co-authored-by: Johannes Altmanninger <aclopte@gmail.com>
This commit is contained in:
Marc Khouzam 2021-05-03 12:23:34 -04:00 committed by GitHub
parent 3ed6a394b6
commit 06e4b59b20
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1 changed files with 13 additions and 0 deletions
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13
fish_completions.go
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@ -53,6 +53,19 @@ function __%[1]s_perform_completion
__%[1]s_debug "Calling $requestComp"
set results (eval $requestComp 2> /dev/null)
# Some programs may output extra empty lines after the directive.
# Let's ignore them or else it will break completion.
# Ref: https://github.com/spf13/cobra/issues/1279
for line in $results[-1..1]
if test (string trim -- $line) = ""
# Found an empty line, remove it
set results $results[1..-2]
else
# Found non-empty line, we have our proper output
break
end
end
set comps $results[1..-2]
set directiveLine $results[-1]