refactor!: initialization through templates

core/templates/init.ps1

@@ -0,0 +1,50 @@
+function {{ alias }} {
+	try {
+# fetch command and error from session history only when not in cnf mode
+		if ($env:_PR_MODE -ne 'cnf') {
+			$env:_PR_LAST_COMMAND = (Get-History | Select-Object -Last 1 | ForEach-Object {$_.CommandLine});
+			if ($PSVersionTable.PSVersion.Major -ge 7) {
+				$err = Get-Error;
+				if ($env:_PR_LAST_COMMAND -eq $err.InvocationInfo.Line) {
+					$env:_PR_ERROR_MSG = $err.Exception.Message
+				}
+			}
+			if ($env:_PR_LAST_COMMAND -eq $err.InvocationInfo.Line) {
+				$env:_PR_ERROR_MSG = $err.Exception.Message
+			}
+		}
+		$env:_PR_SHELL = 'pwsh';
+		&'{{ binary_path }}';
+	}
+	finally {
+# restore mode from cnf
+		if ($env:_PR_MODE -eq 'cnf') {
+			$env:_PR_MODE = $env:_PR_PWSH_ORIGIN_MODE;
+			$env:_PR_PWSH_ORIGIN_MODE = $null;
+		}
+	}
+}
+
+{%- if cnf %}
+# Uncomment this block to enable command not found hook
+# It's not useful as we can't retrieve arguments,
+# and it seems to be a recursion bug
+
+# $ExecutionContext.InvokeCommand.CommandNotFoundAction =
+# {
+# 	param(
+# 		[string]
+# 		$commandName,
+# 		[System.Management.Automation.CommandLookupEventArgs]
+# 		$eventArgs
+# 	)
+# 	# powershell does not support run command with specific environment variables
+# 	# but you must set global variables. so we are memorizing the current mode and the alias function will reset it later.
+# 	$env:_PR_PWSH_ORIGIN_MODE=$env:_PR_MODE;
+# 	$env:_PR_MODE='cnf';
+# 	# powershell may search command with prefix 'get-' or '.\' first when this hook is hit, strip them
+# 	$env:_PR_LAST_COMMAND=$commandName -replace '^get-|\.\\','';
+# 	$eventArgs.Command = (Get-Command {{ alias }});
+# 	$eventArgs.StopSearch = $True;
+# }
+{% endif %}