Add shell completion to mise (#7)

Author: oinopion

src/mise/devcontainer-feature.json

@@ -1,7 +1,7 @@
 {
     "name": "Mise",
     "id": "mise",
-    "version": "0.9.0",
+    "version": "0.9.9",
     "description": "Mise is a polyglot tool version manager. It replaces tools like asdf, nvm, pyenv, rbenv, etc.",
     "options": {},
     "dependsOn": {

src/mise/install.sh

@@ -26,11 +26,9 @@ echo 'eval "$(mise activate bash)"' >> "${_REMOTE_USER_HOME}/.bashrc"
 echo 'eval "$(mise activate zsh)"' >> "${_REMOTE_USER_HOME}/.zshrc"
 mkdir -p /etc/fish/conf.d/ && echo 'mise activate fish | source' >> /etc/fish/conf.d/mise.fish
 
-# TODO: add shell completions
-# USAGE_VERSION="latest"  # But for mise tool spec we need string "latest"
-# mise install "usage@${USAGE_VERSION}"
-# usage_binary=(mise which usage --tool="usage@${USAGE_VERSION}")
-# cp "${usage_binary}" ${INSTALL_PATH}
-# mise completion fish > /etc/fish/completions/mise.fish
-
-chown -R $_REMOTE_USER $OPT_PATH
+mise install usage
+mkdir -p /usr/share/bash-completion/completions/ && mise completions zsh > /usr/share/bash-completion/completions/mise
+mkdir -p /usr/share/zsh/vendor-completions/ && mise completions zsh > /usr/share/zsh/vendor-completions/_mise
+mkdir -p /etc/fish/completions/ && mise completion fish > /etc/fish/completions/mise.fish
+
+chown -R "${_REMOTE_USER}" "${OPT_PATH}"