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|
#compdef lz4 lz4c lz4c32 lz4cat unlz4
# Notes:
# - All lz4 CLI tools take the same options — you can do `unlz4 --compress` if
# you want — and we complete accordingly. One can make a reasonable argument
# that we shouldn't, but...?
# - The only exceptions to the above are the legacy compression options (-c0,
# -hc, and so on) — only lz4c accepts these. Each of these options is
# interpreted separately otherwise (e.g., -c0 becomes equivalent to -c -0)
# - All these tools use a non-standard option-handling method that we don't
# fully support. For example, the tool will let you do things like `-b1e3i3`
# instead of `-b1 -e3 -i3` — we won't
local ret=1
local -a context line state state_descr expl args levels=( -{1..16} )
local -A opt_args val_args
args=(
+ excl # Fully exclusive options
'(: -)'{-h,--help}'[display help information]'
'(: -)-H[display long help information]'
'(: -)'{-V,--version}'[display version information]'
+ misc # Misc. arguments
'(-q -v --quiet --verbose)*'{-q,--quiet}'[reduce output verbosity]'
'(-q -v --quiet --verbose)*'{-v,--verbose}'[increase output verbosity]'
'*::: :->files'
+ B # Benchmark/compress-mode options (not allowed with legacy format)
'(d t -l)*-B-[specify block property]: :->block-props'
'(d t -l --no-content-size)--content-size[record original uncompressed size]'
'(d t -l --no-frame-crc)--frame-crc[enable content checksum]'
'(d t -l --content-size)--no-content-size[do not record original uncompressed size]'
'(d t -l --frame-crc)--no-frame-crc[disable content checksum]'
'(d t -l --sparse)--no-sparse[disable sparse-file support]'
'(d t -l --no-sparse)--sparse[enable sparse-file support]'
+ C # Compress/decompress-mode options
'(b t -c --stdout --to-stdout)'{-c,--stdout}'[write on standard output]'
'(b t -y)'{-f,--force}'[overwrite target without prompting, or cat on standard output]'
'(b t -k --keep --rm)'{-k,--keep}'[keep source file]'
'(b t -m -r --multiple)'{-m,--multiple}'[take multiple input files]'
'!(b -t -f -y --force)--no-force'
'(b t -m --multiple)-r[operate recursively on directories]'
'(b t -k --keep)--rm[remove source file]'
'!(b t -c --stdout)--to-stdout'
+ b # Benchmark-mode options
"(C c d t)-b-[benchmark file using specified compression level]:: :->levels"
"(C c d t)-e-[specify upper compression level limit (with -b)]: :->levels"
'(C c d t)-i-[specify minimum evaluation time (with -b)]:evaluation time (seconds)'
+ c # Compress-mode options
"(b d t ${(j< >)levels} -c0 -c1 -c2 -hc)"${^levels}
'(B b d t -m -r --multiple)-l[compress using legacy (Linux kernel) format]'
'(b d t -z --compress)'{-z,--compress}'[compress file]'
+ d # Decompress-mode options
'(B b c d t)'{-d,--decompress}'[decompress file]'
'!(B b c d t)--uncompress'
+ t # Test-mode options
'(B C b c d t)'{-t,--test}'[test integrity of compressed file]'
)
[[ $service == lz4c ]] && args+=(
+ l # Legacy compress-mode options (not to be confused with the legacy format)
"(b d t ${(j< >)levels} -c1 -c2 -hc)-c0[use fast compression (like -0)]"
"(b d t ${(j< >)levels} -c0 -c2 -hc)-c1[use high compression (like -9)]"
"(b d t ${(j< >)levels} -c0 -c1 -c2 -hc)"{-c2,-hc}'[use very high compression (like -12)]'
'(b t -f --force)-y[overwrite target without prompting]'
)
_arguments -s -S : $args && ret=0
case $state in
block-props)
# The usage help indicates that the use of an explicit byte value (-B32 or
# greater) is only for benchmarking, and indeed when such a value is given
# the tool prints a message prefixed with 'bench:'... but there is nothing
# that actually restricts this to the benchmark mode, so...?
_values 'predefined block property or block size in bytes (32+)' \
'4[set block size to 64 KiB]' \
'5[set block size to 256 KiB]' \
'6[set block size to 1 MiB]' \
'7[set block size to 4 MiB]' \
'D[enable block dependency]' \
'X[enable block checksum]' \
&& ret=0
;;
files)
if
(( CURRENT == 1 )) ||
[[ -n ${opt_args[(i)*-(-b|-m|-r|--multiple)]} ]]
then
if [[ -n ${opt_args[(i)*--r]} ]]; then
_description files expl 'input file or directory'
else
_description files expl 'input file'
fi
_files "${(@)expl}" && ret=0
elif (( CURRENT == 2 )); then
_description files expl 'output file'
_files "${(@)expl}" && ret=0
else
_message 'no more arguments' && ret=0
fi
;;
levels)
_wanted levels expl 'compression level' \
compadd -o numeric - ${levels/#-/} \
&& ret=0
;;
esac
return ret
|
