Remove shebangs from lib files and pass bash dialect to shellcheck

lib/commands/current.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_current_command() {
   local plugin_name=$1
 

lib/commands/help.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 help_command () {
   echo "version: $(asdf_version)"
   echo ""

lib/commands/install.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 handle_failure() {
   local install_path="$1"
   rm -rf "$install_path"

lib/commands/list-all.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 list_all_command() {
   local plugin_name=$1
   local plugin_path

lib/commands/list.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 list_command() {
   local plugin_name=$1
   check_if_plugin_exists "$plugin_name"

lib/commands/plugin-add.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_add_command() {
   if [[ $# -lt 1 || $# -gt 2 ]]; then
     display_error "usage: asdf plugin-add <name> [<git-url>]"

lib/commands/plugin-list-all.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_list_all_command() {
   initialize_or_update_repository
 

lib/commands/plugin-list.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_list_command() {
   local plugins_path
   plugins_path=$(get_plugin_path)

lib/commands/plugin-push.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_push_command() {
   local plugin_name=$1
   if [ "$plugin_name" = "--all" ]; then

lib/commands/plugin-remove.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_remove_command() {
   local plugin_name=$1
   check_if_plugin_exists "$plugin_name"

lib/commands/plugin-test.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 fail_test() {
     echo "FAILED: $1"
     rm -rf "$ASDF_DIR"

lib/commands/plugin-update.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 plugin_update_command() {
   if [ "$#" -ne 1 ]; then
     display_error "usage: asdf plugin-update {<name> | --all}"

lib/commands/reshim.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 shim_command() {
   local plugin_name=$1
   local executable_path=$2

lib/commands/uninstall.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 uninstall_command() {
   local plugin_name=$1
   local full_version=$2

lib/commands/update.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 update_command() {
   local update_to_head=$1
 

lib/commands/version_commands.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 version_command() {
   local cmd=$1
   local plugin=$2

lib/commands/where.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 where_command() {
   local plugin_name=$1
   local full_version=$2

lib/commands/which.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 current_version() {
   local plugin_name=$1
 

lib/utils.sh

@@ -1,5 +1,3 @@
-#!/usr/bin/env bash
-
 # We shouldn't rely on the user's grep settings to be correct. If we set these
 # here anytime asdf invokes grep it will be invoked with these options
 # shellcheck disable=SC2034

lint.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-exec shellcheck -x \
+exec shellcheck -s bash -x \
      asdf.sh lint.sh release.sh \
      bin/asdf bin/private/asdf-exec \
      lib/utils.sh lib/commands/*.sh \