Merge pull request #2017 from versity/ben/shell-completion

feat: add cli option to generate shell auto completion

.goreleaser.yaml

@@ -121,6 +121,25 @@ nfpms:
         file_info:
           mode: 0700
 
+      - src: extra/versitygw.sh
+        dst: /etc/profile.d/versitygw.sh
+        packager: rpm
+
+      - src: extra/versitygw.sh
+        dst: /etc/bash_completion.d/versitygw.sh
+        packager: deb
+
+      - src: extra/versitygw.zsh
+        dst: /usr/share/zsh/site-functions/_versitygw
+        packager: rpm
+
+      - src: extra/versitygw.zsh
+        dst: /usr/share/zsh/vendor-completions/_versitygw
+        packager: deb
+
+      - src: extra/versitygw.fish
+        dst: /usr/share/fish/vendor_completions.d/versitygw.fish
+
 
 
 # yaml-language-server: $schema=https://goreleaser.com/static/schema.json

cmd/versitygw/main.go

@@ -146,7 +146,8 @@ func main() {
 
 func initApp() *cli.App {
 	return &cli.App{
-		Usage: "Versity S3 Gateway",
+		EnableBashCompletion: true,
+		Usage:                "Versity S3 Gateway",
 		Description: `The Versity S3 Gateway is an S3 protocol translator that allows an S3 client
 to access the supported backend storage as if it was a native S3 service.
 VersityGW is an open-source project licensed under the Apache 2.0 License. The

extra/versitygw.fish

@@ -0,0 +1,6 @@
+# Fish completion for versitygw
+function __versitygw_complete
+    set -l cmd (commandline -opc)
+    eval $cmd --generate-bash-completion
+end
+complete -f -c versitygw -a '(__versitygw_complete)'

extra/versitygw.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# Bash completion for versitygw
+[ -n "$BASH_VERSION" ] || return 0
+
+_cli_bash_autocomplete() {
+    if [[ "${COMP_WORDS[0]}" != "source" ]]; then
+        local cur opts
+        COMPREPLY=()
+        cur="${COMP_WORDS[COMP_CWORD]}"
+        if [[ "$cur" == "-"* ]]; then
+            opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} ${cur} --generate-bash-completion )
+        else
+            opts=$( ${COMP_WORDS[@]:0:$COMP_CWORD} --generate-bash-completion )
+        fi
+        COMPREPLY=( $(compgen -W "${opts}" -- "${cur}") )
+        return 0
+    fi
+}
+
+complete -o bashdefault -o default -o nospace -F _cli_bash_autocomplete versitygw

extra/versitygw.zsh

@@ -0,0 +1,13 @@
+#compdef versitygw
+_versitygw() {
+    local -a opts
+    local cur
+    cur=${words[-1]}
+    if [[ "$cur" == "-"* ]]; then
+        opts=("${(@f)$(${words[1,-2]} ${cur} --generate-bash-completion)}")
+    else
+        opts=("${(@f)$(${words[1,-2]} --generate-bash-completion)}")
+    fi
+    _describe 'versitygw' opts
+}
+_versitygw