feat(helm): Configure when the module is shown (#2352)

This makes it possible to configure when the helm module is shown based
on the contents of a directory.

docs/config/README.md

@@ -1291,7 +1291,7 @@ format = "via [🏎💨 $version](bold cyan) "
 ## Helm
 
 The `helm` module shows the currently installed version of Helm.
-The module will be shown if any of the following conditions are met:
+By default the module will be shown if any of the following conditions are met:
 
 - The current directory contains a `helmfile.yaml` file
 - The current directory contains a `Chart.yaml` file
@@ -1299,8 +1299,11 @@ The module will be shown if any of the following conditions are met:
 ### Options
 
 | Option              | Default                              | Description                                      |
-| ---------- | ---------------------------------- | ------------------------------------------------ |
+| ------------------- | ------------------------------------ | ------------------------------------------------ |
 | `format`            | `"via [$symbol($version )]($style)"` | The format for the module.                       |
+| `detect_extensions` | `[]`                                 | Which extensions should trigger this module.     |
+| `detect_files`      | `["helmfile.yaml", "Chart.yaml"]`    | Which filenames should trigger this module.      |
+| `detect_folders`    | `[]`                                 | Which folders should trigger this modules.       |
 | `symbol`            | `"⎈ "`                               | A format string representing the symbol of Helm. |
 | `style`             | `"bold white"`                       | The style for the module.                        |
 | `disabled`          | `false`                              | Disables the `helm` module.                      |

src/configs/helm.rs

@@ -8,6 +8,9 @@ pub struct HelmConfig<'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 HelmConfig<'a> {
@@ -17,6 +20,9 @@ impl<'a> RootModuleConfig<'a> for HelmConfig<'a> {
             symbol: "⎈ ",
             style: "bold white",
             disabled: false,
+            detect_extensions: vec![],
+            detect_files: vec!["helmfile.yaml", "Chart.yaml"],
+            detect_folders: vec![],
         }
     }
 }

src/modules/helm.rs

@@ -4,22 +4,21 @@ use crate::configs::helm::HelmConfig;
 use crate::formatter::StringFormatter;
 
 /// Creates a module with the current Helm version
-///
-/// Will display the Helm version if any of the following criteria are met:
-///     - Current directory contains a `helmfile.yaml` file
-///     - Current directory contains a `Chart.yaml` file
 pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
+    let mut module = context.new_module("helm");
+    let config = HelmConfig::try_load(module.config);
+
     let is_helm_project = context
         .try_begin_scan()?
-        .set_files(&["helmfile.yaml", "Chart.yaml"])
+        .set_files(&config.detect_files)
+        .set_extensions(&config.detect_extensions)
+        .set_folders(&config.detect_folders)
         .is_match();
 
     if !is_helm_project {
         return None;
     }
 
-    let mut module = context.new_module("helm");
-    let config = HelmConfig::try_load(module.config);
     let parsed = StringFormatter::new(config.format).and_then(|formatter| {
         formatter
             .map_meta(|var, _| match var {