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[zfs] Dynamically complete possible zfs property values

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Use the man pages to dynamically generate possible completions for `zfs
set property=` payloads.

[ci skip] // Does that even work for GitHub actions?
This commit is contained in:
Mahmoud Al-Qudsi 2020-11-21 11:03:38 -06:00
parent df4114fb93
commit 6c8c8bf819
1 changed files with 15 additions and 0 deletions
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15
share/completions/zfs.fish
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@ -90,6 +90,19 @@ function __fish_zfs_list_groupspace_types
echo -e "all\tBoth types"
end
# Generate a list of possible values from the man page.
# NB: This includes "hints" like "size" or "opts" which may be useful or unwanted. *shrug*
if type -q man && type -q col
function __fish_zfs_property_options
set -l property (string escape --style=regex -- $argv[1])
set -l values (command man zfs | col -b | string replace -rf -- '^\s*'$property'=(.*\|.*)' '$1' | string split ' | ')
printf '%s\n' $property=$values
end
else
function __fish_zfs_property_options
end
end
function __fish_zfs_list_permissions -V OS
echo -e "allow\tAlso needs the permission to be allowed"
echo -e "clone\tAlso needs the 'create' and 'mount' permissions in the origin filesystem"
@ -328,6 +341,8 @@ complete -c zfs -x -n '__fish_zfs_using_command list' -d 'Dataset whose properti
# set completions
complete -c zfs -x -n '__fish_zfs_using_command set' -d 'Property to set' -a '(__fish_complete_zfs_rw_properties)'
complete -c zfs -x -n '__fish_zfs_using_command set; and string match -q -r "zfs set \S+ " (commandline -c)' -d 'Dataset whose property to set' -a '(__fish_print_zfs_filesystems; __fish_print_zfs_volumes; __fish_print_zfs_snapshots)'
# set property value completions
complete -c zfs -x -n '__fish_zfs_using_command set; and string match -qe = -- (commandline -t)' -a '(__fish_zfs_property_options (commandline -t | string match -r "[^=]+"))'
# get completions
complete -c zfs -f -n '__fish_zfs_using_command get' -s r -d 'Operate recursively on datasets'