wip

README.md

@@ -325,3 +325,19 @@ When `terragrunt` is specified as the program executable, Pug enables "terragrun
 * Modules are detected via the presence of a `terragrunt.hcl` file. (You may want to rename the top-level `terragrunt.hcl` file to something else otherwise it is mis-detected as a module).
 * Module dependencies are supported. After modules are loaded, a task invokes `terragrunt graph-dependencies`, from which dependencies are parsed and configured in Pug. If you apply multiple modules Pug ensures their dependencies are respected, applying modules in topological order. If you apply a *destroy* plan for multiple modules, modules are applied in reverse topological order.
 * The flag `--terragrunt-non-interactive` is added to commands.
+
+## Multiple terraform versions
+
+You may want to use a specific version of terraform for each module. To do so, it's recommended to use either [asdf](https://asdf-vm.com/) or [mise](https://mise.jdx.dev/), specifying the terraform version in a `.tool-versions` file in each module. Whenever you run `terraform`, directly or via Pug, the specific version for that module is used.
+
+However, you first need to instruct `asdf` or `mise` to install specific versions of terraform. Pug's arbitrary execution feature can be used to perform this task for multiple modules.
+
+For example, select modules and press `x`, and when prompted type `asdf install terraform`:
+
+![Execute asdf install terraform in each module](./demo/execute_asdf_install_terraform.png)
+
+Press enter to run that command in each module's directory:
+
+![Executing asdf install terraform in each module](./demo/asdf_install_terraform_task_group.png)
+
+You've now installed a version of terraform for each version specified in `.tool-versions` files.

demo/multiple_versions/modules/a/main.tf

@@ -0,0 +1,28 @@
+terraform {
+  backend "local" {}
+  required_providers {
+    random = {
+      version = "= 3.6.0"
+    }
+  }
+}
+
+resource "time_sleep" "wait_three_seconds" {
+  create_duration = "3s"
+}
+
+resource "random_pet" "pet" {
+  count = 10
+
+  keepers = {
+    now = timestamp()
+  }
+}
+
+output "waited" {
+  value = time_sleep.wait_three_seconds.create_duration
+}
+
+output "pets" {
+  value = random_pet.pet[*].id
+}

demo/multiple_versions/modules/b/main.tf

@@ -0,0 +1,28 @@
+terraform {
+  backend "local" {}
+  required_providers {
+    random = {
+      version = "= 3.6.0"
+    }
+  }
+}
+
+resource "time_sleep" "wait_three_seconds" {
+  create_duration = "3s"
+}
+
+resource "random_pet" "pet" {
+  count = 10
+
+  keepers = {
+    now = timestamp()
+  }
+}
+
+output "waited" {
+  value = time_sleep.wait_three_seconds.create_duration
+}
+
+output "pets" {
+  value = random_pet.pet[*].id
+}

demo/multiple_versions/modules/c/main.tf

@@ -0,0 +1,28 @@
+terraform {
+  backend "local" {}
+  required_providers {
+    random = {
+      version = "= 3.6.0"
+    }
+  }
+}
+
+resource "time_sleep" "wait_three_seconds" {
+  create_duration = "3s"
+}
+
+resource "random_pet" "pet" {
+  count = 10
+
+  keepers = {
+    now = timestamp()
+  }
+}
+
+output "waited" {
+  value = time_sleep.wait_three_seconds.create_duration
+}
+
+output "pets" {
+  value = random_pet.pet[*].id
+}

demo/vhs.tape

@@ -191,3 +191,31 @@ Type "w" Sleep 0.5s
 # take screen shot of workspaces (sleep to ensure page doesn't switch too soon)
 Screenshot demo/workspaces_with_cost.png Sleep 0.5s
 Sleep 3s
+
+# quit app and restart, this time with modules with .tool-versions files, to demonstrate support for executing arbitrary programs, in this case, `asdf`
+Hide
+Ctrl+c Type "y"
+Type `TF_CLI_CONFIG_FILE=$PWD/mirror/mirror.tfrc go run main.go -w demo/multiple_versions` Enter
+Sleep 1s
+Show
+
+# show unintialized modules
+Sleep 1s
+
+# select all modules
+Ctrl+a Sleep 0.5s
+# install terraform for each module
+Type "x" Sleep 1s
+Type "asdf install terraform" Sleep 1s
+# take screen shot (sleep to ensure page doesn't switch too soon)
+Screenshot demo/execute_asdf_install_terraform.png Sleep 0.5s
+# Execute asdf
+Enter
+# Show user the output of asdf downloading terraform. This takes a long time,
+# so sleep a bit, then hide and wait, then show and sleep a bit more.
+Sleep 2s
+Hide
+Sleep 8s
+Show
+Sleep 4s
+Screenshot demo/asdf_install_terraform_task_group.png Sleep 0.5s

hacks/reset_demo.sh

@@ -1,3 +1,6 @@
+# remove all asdf installs of terraform
+asdf uninstall terraform
+
 find demo/ -name .terraform -exec rm -rf {} \; > /dev/null 2>&1 || true
 find demo/ -name terraform.tfstate -exec rm {} \; > /dev/null 2>&1 || true
 find demo/ -name terraform.tfstate.* -exec rm {} \; > /dev/null 2>&1 || true

internal/tui/prompt.go

@@ -113,7 +113,6 @@ func (p *Prompt) View(width int) string {
 	// Set available width for user entered value before it horizontally
 	// scrolls.
 	p.model.Width = max(0, width-lipgloss.Width(p.model.Prompt)-paddedBorderWidth)
-	p.model.Placeholder = "terraform version"
 	// Render a prompt, surrounded by a padded red border, spanning the width of the
 	// terminal, accounting for width of border. Inline and MaxWidth ensures the
 	// prompt remains on a single line.