fix: use /usr/bin/env to find bash

toolchain/src/00-set_version.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/01-fetch_tools.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/02-init_tools.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 
@@ -97,11 +97,15 @@ elif [[ "$PLATFORM" == "LINUX" ]]; then
 elif [[ "$PLATFORM" == "OSX" ]]; then
   $NO_VERBOSE || echo "MAC INIT IS EXPERIMENTAL"
   pushd "$MAIN_DIR/vendor/depot_tools"
+  set +u
   source "./cipd_bin_setup.sh"
   cipd_bin_setup
 
   # Don't bootstrap Python 3 on windows, since it is already done by
   # bootstrap/win_tools.bat.
   source "./bootstrap_python3"
   bootstrap_python3
+
+  set -u
+  popd
 fi

toolchain/src/03-ksync.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/04-patch_chromium.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/05-gen_preamble.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/06-build_ninja.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 
@@ -101,7 +101,7 @@ $NO_VERBOSE || echo "LINE MARKER: $(head -n 1 "$BUILD_SUFFIX")"
 $NO_VERBOSE || echo "LINE NUMBER: $LINE_NO"
 if [[ -n "$LINE_NO" ]]; then
   $NO_VERBOSE || echo "Recreating original based on file"
-  head "$TARGET" -n $(($LINE_NO - 1)) > "${TARGET}.TEMP"
+  head -n $(($LINE_NO - 1)) "$TARGET" > "${TARGET}.TEMP"
   mv "${TARGET}.TEMP" "$TARGET"
 fi
 $NO_VERBOSE || echo "Appending build information to headless/BUILD.gn"

toolchain/src/07-write_kversion.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/08-sync_cpp.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/09-build_kaleido.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/10-extract.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/11-extract_etc.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/12-build_js.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/13-roll_wheel.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/xx-all.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/xx-kdocker.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 # This is a script to help get us into a workable dev-environment inside a docker container
 # ⚠️⚠️⚠️ HERE BE DRAGONS ⚠️⚠️⚠️
 #    \****__              ____

toolchain/src/xx-krefresh.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/xx-make_bin.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u
 

toolchain/src/xx-template.sh

@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 set -e
 set -u