feat(terraform): Configure when the module is shown (#2324)

This makes it possible to configure when the terraform module is shown
based on the contents of a directory. This should make it possible to
be a lot more granular when configuring the module.

src/configs/terraform.rs

@@ -8,6 +8,9 @@ pub struct TerraformConfig<'a> {
     pub symbol: &'a str,
     pub style: &'a str,
     pub disabled: bool,
+    pub detect_extensions: Vec<&'a str>,
+    pub detect_files: Vec<&'a str>,
+    pub detect_folders: Vec<&'a str>,
 }
 
 impl<'a> RootModuleConfig<'a> for TerraformConfig<'a> {
@@ -17,6 +20,9 @@ impl<'a> RootModuleConfig<'a> for TerraformConfig<'a> {
             symbol: "💠 ",
             style: "bold 105",
             disabled: false,
+            detect_extensions: vec!["tf", "hcl"],
+            detect_files: vec![],
+            detect_folders: vec![".terraform"],
         }
     }
 }

src/modules/terraform.rs

@@ -8,24 +8,21 @@ use std::io;
 use std::path::PathBuf;
 
 /// Creates a module with the current Terraform version and workspace
-///
-/// Will display the Terraform version and workspace if any of the following criteria are met:
-///     - Current directory contains a `.terraform` directory
-///     - Current directory contains a file with the `.tf` extension
 pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
+    let mut module = context.new_module("terraform");
+    let config: TerraformConfig = TerraformConfig::try_load(module.config);
+
     let is_terraform_project = context
         .try_begin_scan()?
-        .set_folders(&[".terraform"])
-        .set_extensions(&["tf", "hcl"])
+        .set_files(&config.detect_files)
+        .set_folders(&config.detect_folders)
+        .set_extensions(&config.detect_extensions)
         .is_match();
 
     if !is_terraform_project {
         return None;
     }
 
-    let mut module = context.new_module("terraform");
-    let config: TerraformConfig = TerraformConfig::try_load(module.config);
-
     let parsed = StringFormatter::new(config.format).and_then(|formatter| {
         formatter
             .map_meta(|variable, _| match variable {