fix: invoking code-server in integrated terminal (#5360)

* Include bin scripts for all platforms

These will get symlinked as part of the postinstall.  These scripts
provide everything ours does inside the integrated terminal plus more.

* Improve OS detection

Specifically for Windows although we do not yet support Windows.

Also standardize the duplicate arch functions since they had drifted
from each other bit.

* Remove duplicate asar symlink

Since standalone releases run the postinstall they will get the asar
symlink there.  That means the symlink will not exist for the npm
package and we will not need to ignore it.

The symlink portion is split out so it can be re-used for other
symlinks (for example linking bin scripts).

* Add symlinks to bin scripts

* Add test for opening a file from the terminal

* Add global Playwright timeout

Otherwise it will exceed the Actions timeout and get rudely killed
without any output.

* Make sed work on macOS

* Fix Node path in bin scripts

* Disable shellcheck expansion error

* Make scripts executable

* Remove .bak files created by sed

* Include Code build script in cache hash

Otherwise if we change the script it will not rebuild Code.

* Make sure the terminal opens

The selector was timing out even though it matched more than one element
but matching on the focused one appears to work.

In addition add a loop so it can keep trying to open the terminal
if something goes wrong with the focus.

ci/build/npm-postinstall.sh

@@ -1,23 +1,69 @@
 #!/usr/bin/env sh
 set -eu
 
-# Copied from arch() in ci/lib.sh.
-detect_arch() {
-  case "$(uname -m)" in
-    aarch64)
-      echo arm64
-      ;;
-    x86_64 | amd64)
-      echo amd64
-      ;;
-    *)
-      # This will cause the download to fail, but is intentional
-      uname -m
-      ;;
+# Copied from ../lib.sh.
+arch() {
+  cpu="$(uname -m)"
+  case "$cpu" in
+    aarch64) cpu=arm64 ;;
+    x86_64) cpu=amd64 ;;
+  esac
+  echo "$cpu"
+}
+
+# Copied from ../lib.sh except we do not rename Darwin since the cloud agent
+# uses "darwin" in the release names and we do not need to detect Alpine.
+os() {
+  osname=$(uname | tr '[:upper:]' '[:lower:]')
+  case $osname in
+    cygwin* | mingw*) osname="windows" ;;
+  esac
+  echo "$osname"
+}
+
+# Create a symlink at $2 pointing to $1 on any platform.  Anything that
+# currently exists at $2 will be deleted.
+symlink() {
+  source="$1"
+  dest="$2"
+  rm -rf "$dest"
+  case $OS in
+    windows) mklink /J "$dest" "$source" ;;
+    *) ln -s "$source" "$dest" ;;
   esac
 }
 
-ARCH="${NPM_CONFIG_ARCH:-$(detect_arch)}"
+# VS Code bundles some modules into an asar which is an archive format that
+# works like tar. It then seems to get unpacked into node_modules.asar.
+#
+# I don't know why they do this but all the dependencies they bundle already
+# exist in node_modules so just symlink it. We have to do this since not only
+# Code itself but also extensions will look specifically in this directory for
+# files (like the ripgrep binary or the oniguruma wasm).
+symlink_asar() {
+  symlink node_modules node_modules.asar
+}
+
+# Make a symlink at bin/$1/$3 pointing to the platform-specific version of the
+# script in $2.  The extension of the link will be .cmd for Windows otherwise it
+# will be whatever is in $4 (or no extension if $4 is not set).
+symlink_bin_script() {
+  oldpwd="$(pwd)"
+  cd "bin/$1"
+  source="$2"
+  dest="$3"
+  ext="${4-}"
+  case $OS in
+    windows) symlink "$source.cmd" "$dest.cmd" ;;
+    darwin | macos) symlink "$source-darwin.sh" "$dest$ext" ;;
+    *) symlink "$source-linux.sh" "$dest$ext" ;;
+  esac
+  cd "$oldpwd"
+}
+
+ARCH="${NPM_CONFIG_ARCH:-$(arch)}"
+OS="$(os)"
+
 # This is due to an upstream issue with RHEL7/CentOS 7 comptability with node-argon2
 # See: https://github.com/cdr/code-server/pull/3422#pullrequestreview-677765057
 export npm_config_build_from_source=true
@@ -56,8 +102,6 @@ main() {
     ;;
   esac
 
-  OS="$(uname | tr '[:upper:]' '[:lower:]')"
-
   mkdir -p ./lib
 
   if curl -fsSL "https://github.com/coder/cloud-agent/releases/latest/download/cloud-agent-$OS-$ARCH" -o ./lib/coder-cloud-agent; then
@@ -79,22 +123,14 @@ main() {
   fi
 }
 
-# This is a copy of symlink_asar in ../lib.sh. Look there for details.
-symlink_asar() {
-  rm -rf node_modules.asar
-  if [ "${WINDIR-}" ]; then
-    mklink /J node_modules.asar node_modules
-  else
-    ln -s node_modules node_modules.asar
-  fi
-}
-
 vscode_yarn() {
   echo 'Installing Code dependencies...'
   cd lib/vscode
   yarn --production --frozen-lockfile --no-default-rc
 
   symlink_asar
+  symlink_bin_script remote-cli code code-server
+  symlink_bin_script helpers browser browser .sh
 
   cd extensions
   yarn --production --frozen-lockfile