我正在使用我的 zsh 版本（debian 10）附带的默认_gpg完成文件。我已将文件粘贴到此处：zsh5.7.1-1https://ctxt.io/2/AABg86pPFQ
当我这样做时gpg <TAB>，zsh 会完成当前目录中的文件和目录。我想改变这一点，以便：
a）如果我使用 gpg 而不带进一步的参数（这意味着-d），则仅完成当前目录中的 *.gpg 文件（而不是目录）
b）如果我使用-eor -c（暗示加密），则仅完成当前目录中的非gpg文件（而不是目录）
c) 对于其余的，我想默认行为是可以的
我已将以下内容添加到我的.zshrc：
zstyle ':completion::complete:gpg:*' file-patterns '*.(gpg|sig)(.)'
但这应该只是情况 a) 的规则
我怎样才能实现上述行为？
答案1
我从未编辑过 zsh 完成文件，因此可能存在一些错误，但这满足了您的要求：
#compdef gpg gpgv gpg-zip gpg2=gpg
local curcontext="$curcontext" state line expl ret=1
local -a args allopts dups extra
typeset -A opt_args
if [[ $service = gpg-zip ]]; then
args=(
'--gpg[command to use instead of gpg]:command:_command'
'--gpg-args[gpg arguments]:gpg arguments:'
'--tar[command to use instead of tar]:command:_command'
'--tar-args[tar arguments]:tar arguments:'
'--list-archive[list archive contents]'
)
else
allopts=( $(_call_program options $words[1] --dump-options) )
args=(
'(-q --quiet)*'{-v,--verbose}'[increase amount of output]'
'(-q --quiet -v --verbose)'{-q,--quiet}'[reduce amount of output]'
'--keyring=[add specified file to list of keyrings]:file:_files'
'--'{status,logger}'-fd:file descriptor:_file_descriptors'
'--homedir:directory:_directories'
)
fi
[[ $service = gpgv ]] || args+=(
'(-e --encrypt)'{-e,--encrypt}'[encrypt data. this option may be combined with --sign]:files:_path_files -g "^(#i)*.gpg(-.)"'
'(-d,--decrypt)'{-d,--decrypt}'[decrypt file or stdin]:files:_path_files -g "(#i)*.gpg(-.)"'
'(-c --symmetric)'{-c,--symmetric}'[encrypt with symmetric cipher only]:files:_path_files -g "^(#i)*.gpg(-.)"'
'(-s --sign)'{-s,--sign}'[make a signature]'
'*'{-r+,--recipient}'[specify user to encrypt for]:recipient:->public-keys'
'(-u --local-user)'{-u+,--local-user}'[use name as the user ID to sign]:user attachment:_users'
'(-o --output)'{-o+,--output}'[write output to file]:output file:_files'
'(-h --help)'{-h,--help}'[display usage information]'
'--version[print info on program version and supported algorithms]'
'*:filename _files:_path_files -g "(#i)*.gpg(-.)"'
)
[[ $service = gpg ]] && args+=(
'--decrypt-files[decrypt multiple files]'
'(-b --detach-sign)'{-b,--detach-sign}'[make a detached signature]'
--clear{,-}sign'[make a clear text signature]'
'--store[store only]'
'--verify[verify a signature]'
'--verify-files[verify a list of files]'
'(-f --encrypt-files)'{-f,--encrypt-files}'[encrypt files]'
'(-k --list-keys)'{-k,--list-keys}'[list all keys]'
'--list-public-keys[list all public keys]'
'(-K --list-secret-keys)'{-K,--list-secret-keys}'[list all secret keys]'
--list-sig{,nature}s'[lists keys and signatures]:key attachment:->public-keys'
'--list-options[modify what the various --list-* commands show]: :->option-list'
--check-sig{,nature}s'[list key, signatures and check them]:key attachment:->public-keys'
'--fingerprint[list all keys with their fingerprints]:key attachment:->public-keys'
'--list-packets[list only the sequence of packets]'
'--gen-key[generate a new pair key]'
'--edit-key[interactively edit a key]:key attachment:->public-keys'
'--sign-key[sign a key]:key attachment:->public-keys'
'--lsign-key[sign a key but mark as non-exportable]:key attachment:->public-keys'
'--delete-keys[remove key from public keyring]:key attachment:->public-keys'
'--delete-secret-keys[remove key from public & private keyring]:key attachment:->secret-keys'
'--delete-secret-and-public-keys:key attachment:->secret-keys'
'--gen-revoke[generate a revocation certificate]'
'--desig-revoke[generate a designated revocation certificate]'
'--passwd[change a passphrase]'
'--export[export all keys from all keyrings]'
'--send-keys[send keys to a keyserver]:key attachment:->public-keyids'
'--export-secret-keys:key attachment:->secret-keys'
'--export-secret-subkeys:key attachment:->secret-keys'
'--import[import a gpg key from a file]:attachment (file):_files'
'--fast-import[import a file without adding to trustdb]:attachment (file):_files'
'--fetch-keys[fetch key at URIs]:uri:'
--rec{eive,v}-keys'[receive a list of keys from a keyserver]:key attachment:->public-keyids'
'--refresh-keys[update all keys from a keyserver]'
'--search-keys[search for keys on a key server]'
'--update-trustdb[update the trust database]'
'--check-trustdb[unattended trust database update]'
'--fix-trustdb[fix a corrupted trust database]'
'--export-ownertrust[list the assigned ownertrust values in ASCII format]:file:_files'
'--import-ownertrust[update the trustdb with a file]:file:_files'
'--dearmor[de-Armor a file or stdin]'
'--enarmor[en-Armor a file or stdin]'
'--print-md[print message digests]:algorithm:->ciphers::file:_files'
'--print-mds[print message digests]::file:_files'
'--tofu-policy:policy:(good unknown bad ask auto):*:keys:->public-keys'
'--tofu-default-policy:policy:(good unknown bad ask auto)'
'--quick-generate-key:user-id: :algorithm:(default future-default rsa dsa elg ed25519 cv25519): : _values -s , usage - default sign auth encr::expiration'
'--quick-add-key:fingerprint: :algorithm:(default future-default rsa dsa elg ed25519 cv25519): : _values -s , usage - default sign auth encr::expiration'
'--gen-random:quality level:(0 1 2):count (bytes)' '--gen-prime'
'--warranty[print warranty info]'
'(-a --armor)'{-a,--armor}'[create ASCII armored output]'
'--default-key[specify default user ID for signatures]:key:->secret-keys'
'--default-recipient[specify default recipient]:recipient:->public-keys'
'--default-recipient-self[use default key as default recipient]'
'--no-default-recipient[reset default recipient]'
'*--encrypt-to[specify recipient]:key:->public-keys'
'(--encrypt-to)--no-encrypt-to[disable the use of all --encrypt-to keys]'
'-z[specify compression level]:compression level:((0\:no\ compression 1\:minimum 2 3 4 5 6\:default 7 8 9\:maximum))'
'(-t --textmode)'{-t,--textmode}'[use canonical text mode]'
'(-n --dry-run)'{-n,--dry-run}"[don't make any changes]"
'(-i --interactive --batch)'{-i,--interactive}'[prompt before overwriting files]'
'(-i --interactive --no-batch)--batch[use batch mode]'
'--no-tty[never output to tty]'
'(--batch)--no-batch[disable batch mode]'
'(--no)--yes[assume "yes" on most questions]'
'(--yes)--no[assume "no" on most questions]'
'--default-cert-check-level:check level:((0\:no\ claim 1\:no\ verification 2\:casual\ verification 3\:extensive\ verification))'
'--trusted-key[assume that the specified key is trustworthy]:long key id'
'--always-trust[skip key validation]'
'--keyserver[specify key server to use]:key server:_hosts'
'--keyserver-options[specify keyserver options]:options'
'--import-options[specify options for importing keys]:options'
'--export-options[specify options for exporting keys]:options'
'--photo-viewer:command:_command_names -e'
'--exec-path:path:_dir_list'
'--show-keyring[display keyring name when listing keys]'
'--secret-keyring[add specified file to list of secret keyrings]:file:_files'
'--charset:character set:(iso-8859-1 iso-8859-2 koi8-r utf-8)'
'--utf8-strings' '--no-utf8-strings[arguments are not in UTF8]'
'(--no-options)--options[specify file to read options from]:options file:_files'
"(--options)--no-options[don't read options file]"
'--'{attribute,passphrase,command}'-fd:file descriptor:_file_descriptors'
'--sk-comments[include secret key comments when exporting keys]'
'(--emit-version)--no-emit-version[omit version string in clear text signatures]'
'(--no-emit-version)--emit-version[force writing of version string in clear text signatures]'
'(-N --notation-data)'{-N,--notation-data}'[put parameter in signature]:name=value'
'(--no-show-notation)--show-notation[show key signature notations]'
"(--show-notation)--no-show-notation[don't show key signature notations]"
'--set-policy-url:policy URL'
'--set-filename[specify file which is stored in messages]:file:_files'
'--completes-needed:number' '--marginals-needed:number' '--max-cert-depth:number'
'--'{{,disable-,s2k-}cipher,{,s2k-,cert-}digest,disable-pubkey}'-algo:cipher:->ciphers'
'--s2k-mode:value'
'--compress-algo:compression algorithm:((0\:disable\ compression 1\:zlib 2\:rfc1950))'
'--personal-'{cipher,digest,compress}'-preferences:string'
--{card-edit,edit-card}'[present smartcard menu]' '--card-status[show smartcard content]'
'--change-pin[present menu to change smartcard pin]'
'--list-config[display internal configuration parameters]'
'--hidden-recipient[hidden recipient]:recipient:->public-keys'
'--default-preference-list:string'
'--fetch-keys:URIs'
'--hidden-encrypt-to:recipient:->public-keys'
'--compress-level:integer'
'--bzip2-compress-level:integer'
'--default-cert-level:integer'
'--max-output[maximum output generated when processing file]:bytes:'
'--gpg-agent-info[override GPG_AGENT_INFO]:'
'--primary-keyring:file:_files'
'--verify-options: :->verify-options'
'--debug:flags:' '--status-file:file:_files'
'--attribute-file:file:_files' '--load-extension:file:_files'
'--s2k-count:integer'
'--sig-notation:name=value:' '--cert-notation:name=value:'
'--passphrase-file:file:_files' '--passphrase-repeat:integer:'
'--command-file:file:_files' '--trustdb-name:file:_files'
'--trust-model:trust model:(pgp classic tofu tofu+pgp direct always auto)'
'--sig-policy-url:string:' '--cert-policy-url:string:'
'--sig-keyserver-url:string:' '--comment[comment]:comment:'
'--no-comments[disable comments]'
'--logger-file[write log to file]:file:_files'
'--rebuild-keydb-caches[create signature caches in keyring]'
'--default-keyserver-url:name:'
'--display-charset[set native charset]:charset:((iso-8859-1 iso-8859-2 iso-8859-15 koi8-r utf-8))'
'--ungroup[remove group]:group name:'
'--no-groups[remove all entries from --group list]'
'--enable-progress-filter[enable progress status output]'
'--multifile[process multiple files]'
'--keyid-format[key id format]:key format:((short 0xshort long 0xlong))'
'--exit-on-status-write-error[exit immediately on error write]'
'--limit-card-insert-tries:integer'
'--reader-port[card reader port]:port'
'--ctapi-driver[file to use to access smartcard reader]:file:_files'
'--pcsc-driver[file to use to access smartcard reader]:file:_files'
'--auto-key-locate:parameters'
'--dump-options[show all options]'
)
extra=( ${${${args#\([^\)]#\)}#\*}%%[:=\[]*} )
extra=( ${allopts:|extra} )
_arguments -C -s -S -A "-*" $args $extra && ret=0
if [[ $state = args ]]; then
if (( ${+opt_args[--export]} || ${+opt_args[-k]} || ${+opt_args[--list-keys]} || ${+opt_args[--list-public-keys]} )); then
state=public-keys
elif (( ${+opt_args[--list-secret-keys]} )); then
state=secret-keys
else
_files && return
fi
fi
# We need to keep some arguments to get a consistent list of keys
# etc.
local -a needed
integer krind=${words[(I)--keyring(|=*)]}
needed=(${words[(r)--no-default-keyring]})
if (( krind )); then
# We have a --keyring option. We can't be completing its
# argument because that was handled above, so it must be complete.
if [[ $words[krind] = --keyring ]]; then
if [[ -n $words[krind+1] ]]; then
needed+=(--keyring=$words[krind+1])
fi
else
needed+=($words[krind])
fi
fi
case "$state" in
public-keys)
local public_keys_lines=(${(f)"$(_call_program public-keys ${(q)words[1]} ${(q)needed} --list-public-keys --list-options no-show-photos --with-colons)"})
local -a uids emails
local i j parts current_uid
for (( i = 1; i < ${#public_keys_lines[@]}; ++i )); do
parts=("${(@s.:.)public_keys_lines[$i]}")
if [[ ${parts[1]} == "fpr" ]]; then
current_uid="${parts[10]}"
i=$((i + 1))
parts=("${(@s.:.)public_keys_lines[$i]}")
while [[ ${parts[1]} == "uid" ]]; do
uids+=("${current_uid}")
emails+=("${parts[10]}")
i=$((i + 1))
parts=("${(@s.:.)public_keys_lines[$i]}")
done
fi
done
_describe -t public-keys 'public key' emails uids
;;
secret-keys)
local secret_keys_lines=(${(f)"$(_call_program secret-keys ${(q)words[1]} ${(q)needed} --list-secret-keys --list-options no-show-photos --with-colons)"})
local -a uids emails
local i j parts current_uid
for (( i = 1; i < ${#secret_keys_lines[@]}; ++i )); do
parts=("${(@s.:.)secret_keys_lines[$i]}")
if [[ ${parts[1]} == "fpr" ]]; then
current_uid="${parts[10]}"
i=$((i + 1))
parts=("${(@s.:.)secret_keys_lines[$i]}")
while [[ ${parts[1]} == "uid" ]]; do
uids+=("${current_uid}")
emails+=("${parts[10]}")
i=$((i + 1))
parts=("${(@s.:.)secret_keys_lines[$i]}")
done
fi
done
_describe -t secret-keys 'secret key' emails uids
;;
ciphers)
_wanted ciphers expl cipher compadd \
${${(s.,.)${(M)${(f)${"$(_call_program ciphers ${(q)words[1]} ${(q)needed} --version)"}//,$'\n' #/, }:#Cipher*}#*:}# } && return
;;
(public-keyids)
local public_keys_lines=(${(f)"$(_call_program public-keyids ${(q)words[1]} ${(q)needed} --list-public-keys --list-options no-show-photos --with-colons)"})
local -a uids emails
local i j parts current_uid
for (( i = 1; i < ${#public_keys_lines[@]}; ++i )); do
parts=("${(@s.:.)public_keys_lines[$i]}")
if [[ ${parts[1]} == "fpr" ]]; then
current_uid="${parts[10]}"
i=$((i + 1))
parts=("${(@s.:.)public_keys_lines[$i]}")
while [[ ${parts[1]} == "uid" ]]; do
uids+=("${current_uid}")
emails+=("${parts[10]}")
i=$((i + 1))
parts=("${(@s.:.)public_keys_lines[$i]}")
done
fi
done
_describe -t public-keyids 'public key' emails uids
;;
(option-list)
_sequence _wanted options expl option \
compadd - {no-,}show-{photos,usage,policy-urls,{std,user}-notations,keyserver-urls,uid-validity,unusable-{uids,subkeys},keyring,sig-{expire,subpackets}} && return
;;
(verify-options)
_sequence _wanted options expl option \
compadd - {no-,}show-{photos,policy-urls,{std,user}-notations,keyserver-urls,uid-validity,unusable-uids,primary-uid-only} {no-,}pka-{lookups,trust-increase} && return
;;
esac
return ret
文件很大，乍一看很难注意到发生了什么变化，所以可以使用diff工具快速查看：
$ diff /usr/share/zsh/5.8/functions/_gpg /usr/share/zsh/5.8/functions/_gpg.bak
27,29c27,29
< '(-e --encrypt)'{-e,--encrypt}'[encrypt data. this option may be combined with --sign]:files:_path_files -g "^(#i)*.gpg(-.)"'
< '(-d,--decrypt)'{-d,--decrypt}'[decrypt file or stdin]:files:_path_files -g "(#i)*.gpg(-.)"'
< '(-c --symmetric)'{-c,--symmetric}'[encrypt with symmetric cipher only]:files:_path_files -g "^(#i)*.gpg(-.)"'
---
> '(-e --encrypt)'{-e,--encrypt}'[encrypt data. this option may be combined with --sign]'
> {-d,--decrypt}'[decrypt file or stdin]'
> '(-c --symmetric)'{-c,--symmetric}'[encrypt with symmetric cipher only]'
36d35
< '*:filename _files:_path_files -g "(#i)*.gpg(-.)"'
179c178
< _arguments -C -s -S -A "-*" $args $extra && ret=0
---
> _arguments -C -s -S -A "-*" $args $extra '*:args:->args' && ret=0
答案2
zstyle可以与 在运行时评估样式的值一起使用-e，因此尽管可能有更干净/更简洁的方法来执行此操作，但您始终可以执行以下操作：
zstyle -e ':completion::complete:gpg:*' file-patterns '
if (( ! words[(I)-*] || words[(I)-d] )); then
reply=("*.(gpg|sig)(.)")
elif (( words[(I)-[ec]] )); then
reply=("^*.gpg(.)")
fi'
可以使用zparseopts处理诸如gpg -ve或之类的调用来改进它gpg --encrypt。