completion: proposal for Completion/Debian/_dscverify

[Romain Porte <debian@xxxxxxxxxxxx>]

Hello dear ZSH workers,

Attached in a proposal of completion for the "dscverify" Debian command
shipped with Debian's devtools package. The file has been reviewed by
Daniel during our initial discussion on the Debian bugtracker [1], but
of course we may have forgotten some details.

[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=953389

As the other devtools completions are coming from upstream zsh, I think
this completion should also make its way through upstream.

Best regards,

diff -u -N --recursive ../zsh-5.8.orig/Completion/Debian/Command/_dscverify ./Completion/Debian/Command/_dscverify
--- ../zsh-5.8.orig/Completion/Debian/Command/_dscverify	1970-01-01 01:00:00.000000000 +0100
+++ ./Completion/Debian/Command/_dscverify	2020-03-09 15:36:16.206314783 +0100
@@ -0,0 +1,30 @@
+#compdef dscverify
+
+# $ dscverify --version
+# This is dscverify, from the Debian devscripts package, version 2.20.2
+# ...
+
+_dscverify() {
+  local all_opts=(
+    '--help[show the help message and exit]'
+    '--version[show the version + copyright and exit]'
+    '--no-default-keyrings[do not check against the default keyrings]'
+    '*--keyring[add keyring to the list of keyrings used]:keyring:_files -g "*.{kbx,gpg}(-.)"'
+    '(--nosigcheck --no-sig-check -u)'{--nosigcheck,--no-sig-check,-u}'[do not verify the GPG signature]'
+    '--verbose[do not suppress GPG output]'
+    '*:dsc file:_files -g "*.{changes,dsc,buildinfo}(-.)"'
+  )
+
+  local first_only=(
+    '(--no-conf --noconf)'{--no-conf,--noconf}'[do not read the devscripts config file]'
+  )
+
+  if (( CURRENT == 2 )); then
+    all_opts+=($first_only)
+  fi
+
+  _arguments \
+    "$all_opts[@]"
+}
+
+_dscverify "$@"

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