feat: create shell module (#2329)

* Add the shell module

This module allows to quickly identify which shell is currently used, in case someone frequently switches between them.

* Updated documentation with shell module.

Co-authored-by: mro <mro@fedorabox.localdomain>

3 files changed, 32 insertions, 0 deletions

diff --git a/src/configs/mod.rs b/src/configs/mod.rs
index 91d3b1061..1052a6736 100644
--- a/src/configs/mod.rs
+++ b/src/configs/mod.rs
@@ -42,6 +42,7 @@ pub mod purescript;
 pub mod python;
 pub mod ruby;
 pub mod rust;
+pub mod shell;
 pub mod shlvl;
 pub mod singularity;
 mod starship_root;
diff --git a/src/configs/shell.rs b/src/configs/shell.rs
new file mode 100644
index 000000000..24551df97
--- /dev/null
+++ b/src/configs/shell.rs
@@ -0,0 +1,30 @@
+use crate::config::{ModuleConfig, RootModuleConfig};
+
+use starship_module_config_derive::ModuleConfig;
+
+#[derive(Clone, ModuleConfig)]
+pub struct ShellConfig<'a> {
+    pub format: &'a str,
+    pub bash_indicator: &'a str,
+    pub fish_indicator: &'a str,
+    pub zsh_indicator: &'a str,
+    pub powershell_indicator: &'a str,
+    pub ion_indicator: &'a str,
+    pub elvish_indicator: &'a str,
+    pub disabled: bool,
+}
+
+impl<'a> RootModuleConfig<'a> for ShellConfig<'a> {
+    fn new() -> Self {
+        ShellConfig {
+            format: "$indicator ",
+            bash_indicator: "bsh",
+            fish_indicator: "fsh",
+            zsh_indicator: "zsh",
+            powershell_indicator: "psh",
+            ion_indicator: "ion",
+            elvish_indicator: "esh",
+            disabled: true,
+        }
+    }
+}
diff --git a/src/configs/starship_root.rs b/src/configs/starship_root.rs
index 0c9ccc8fe..a73f0229a 100644
--- a/src/configs/starship_root.rs
+++ b/src/configs/starship_root.rs
@@ -71,6 +71,7 @@ pub const PROMPT_ORDER: &[&str] = &[
     "battery",
     "time",
     "status",
+    "shell",
     "character",
 ];