gpg 的 zsh 補全

我正在使用我的 zsh 版本（debian 10）附帶的預設_gpg完成文件。我已將文件粘貼在這裡：https ://ctxt.io/2/AABg86pPFQzsh``5.7.1-1

當我這樣做時gpg <TAB>，zsh 會完成目前目錄中的文件和目錄。我想改變它，以便：

a) 如果我使用 gpg 沒有進一步的參數（這意味著-d），那麼只有目前目錄中的 *.gpg 文件完成（不是目錄）

b）如果我使用-e或-c（暗示加密），則僅完成目前目錄中的非 gpg 文件（不是目錄）

c）對於其餘的，我猜預設行為是好的

我已將以下內容添加到我的.zshrc：

zstyle ':completion::complete:gpg:*' file-patterns '*.(gpg|sig)(.)'

但這應該只是案例a的規則）

我怎樣才能實現上述行為？

我從未編輯過 zsh 完成文件，因此可能存在一些錯誤，但這可以滿足您的要求：

#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

該文件很大，因此第一眼很難注意到發生了什麼變化，因此您可以使用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

引用自：https://unix.stackexchange.com/questions/690710