Add completion for zsh

nimble.zsh-completion

@@ -0,0 +1,51 @@
+#compdef nimble
+
+_nimble() {
+  local line
+
+  _arguments -C \
+    '1: :(install init publish uninstall build c cc js doc doc2 refresh search list tasks path dump develop)' \
+    '*::options:->options' \
+    '(--version)--version[show version]' \
+    '(--help)--help[show help]' \
+    '(-)--help[display help information]' \
+    '(-)--version[display version information]' \
+    '(-y --accept)'{-y,--accept}'[accept all interactive prompts]' \
+                    {-n,--reject}'[reject all interactive prompts]' \
+    '--ver[Query remote server for package version information when searching or listing packages]' \
+    '--nimbleDir dirname[Set the Nimble directory]' \
+    '(-d --depsOnly)'{-d,--depsOnly}'[Install only dependencies]'
+
+  if [ $#line -eq 0 ]; then
+    # if the command line is empty and "nimble tasks" is successfull, add custom tasks
+    tasks=$(nimble tasks)
+    if [ $? -eq 0 ]; then
+      compadd - $(echo $tasks | cut -f1 -d" " | tr '\n' ' ')
+    fi
+  fi
+
+  case $line[1] in
+    install)
+      _nimble_installable_packages
+    ;;
+    uninstall|path|dump)
+      _nimble_installed_packages
+    ;;
+    init|publish|build|refresh|search|tasks)
+      (( ret )) && _message 'no more arguments'
+    ;;
+    *)
+      (( ret )) && _message 'no more arguments'
+    ;;
+  esac
+}
+
+function _nimble_installable_packages {
+  compadd - $(nimble list 2> /dev/null | grep -v '^ ' | tr -d ':')
+}
+
+function _nimble_installed_packages {
+  compadd - $(nimble list -i 2> /dev/null | grep ']$' | cut -d' ' -f1)
+}
+
+_nimble "$@"