feat(latest): adds the flag --all to the latest command

lib/commands/command-latest.bash

@@ -7,6 +7,10 @@ latest_command() {
   local query=$2
   local plugin_path
 
+  if [ "$plugin_name" == "--all" ]; then
+    latest_all
+  fi
+
   [[ -z $query ]] && query="$DEFAULT_QUERY"
 
   plugin_path=$(get_plugin_path "$plugin_name")
@@ -35,4 +39,49 @@ latest_command() {
   printf "%s\n" "$versions"
 }
 
+latest_all() {
+  local plugins_path
+  plugins_path=$(get_plugin_path)
+
+  if ls "$plugins_path" &>/dev/null; then
+    for plugin_path in "$plugins_path"/*; do
+      plugin_name=$(basename "$plugin_path")
+
+      # Retrieve the version of the plugin
+      local version
+      if [ -f "${plugin_path}/bin/latest-stable" ]; then
+        # We can't filter by a concrete query because different plugins might
+        # have different queries.
+        version=$("${plugin_path}"/bin/latest-stable "")
+        if [ -z "${version}" ]; then
+          version="unknown"
+        fi
+      else
+        # pattern from xxenv-latest (https://github.com/momo-lab/xxenv-latest)
+        version=$(asdf list-all "$plugin_name" |
+          grep -vE "(^Available version:|-src|-dev|-latest|-stm|[-\\.]rc|-alpha|-beta|[-\\.]pre|-next|(a|b|c)[0-9]+|snapshot|master)" |
+          sed 's/^[[:space:]]\+//' |
+          tail -1)
+        if [ -z "${version}" ]; then
+          version="unknown"
+        fi
+      fi
+
+      local installed_status
+      installed_status="missing"
+
+      local installed_versions
+      installed_versions=$(list_installed_versions "$plugin_name")
+
+      if ! printf '%s\n' "$installed_versions" | grep -q "^$version\$"; then
+        installed_status="installed"
+      fi
+      printf "%s\\t%s\\t%s\\n" "$plugin_name" "$version" "$installed_status"
+    done
+  else
+    printf "%s\\n" 'No plugins installed'
+  fi
+  exit 0
+}
+
 latest_command "$@"

test/latest_command.bats

@@ -59,3 +59,12 @@ teardown() {
   [ "$(echo "No compatible versions available (legacy-dummy 3)")" == "$output" ]
   [ "$status" -eq 1 ]
 }
+
+################################
+####      latest --all      ####
+################################
+@test "[latest_command - all plugins] shows the latest stable version of all plugins" {
+  run asdf latest --all
+  [ "$(echo -e "dummy\t2.0.0\tinstalled\nlegacy-dummy\t2.0.0\tinstalled\n")" == "$output" ]
+  [ "$status" -eq 0 ]
+}