feat: Implement the prompt module for jobs (#85)

src/modules/jobs.rs

@@ -0,0 +1,32 @@
+use ansi_term::Color;
+
+use super::{Context, Module};
+
+/// Creates a segment to show if there are any active jobs running
+pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
+    let mut module = context.new_module("jobs")?;
+
+    let threshold = module.config_value_i64("threshold").unwrap_or(1);
+
+    const JOB_CHAR: &str = "✦";
+    let module_color = Color::Blue.bold();
+
+    module.set_style(module_color);
+
+    let arguments = &context.arguments;
+    let num_of_jobs = arguments
+        .value_of("jobs")
+        .unwrap_or("0")
+        .parse::<i64>()
+        .ok()?;
+    if num_of_jobs == 0 {
+        return None;
+    }
+    module.new_segment("symbol", JOB_CHAR);
+    if num_of_jobs > threshold {
+        module.new_segment("number", &num_of_jobs.to_string());
+    }
+    module.get_prefix().set_value("");
+
+    Some(module)
+}

src/modules/mod.rs

@@ -5,6 +5,7 @@ mod directory;
 mod git_branch;
 mod git_status;
 mod golang;
+mod jobs;
 mod line_break;
 mod nodejs;
 mod package;
@@ -30,6 +31,7 @@ pub fn handle<'a>(module: &str, context: &'a Context) -> Option<Module<'a>> {
         "username" => username::module(context),
         "battery" => battery::module(context),
         "cmd_duration" => cmd_duration::module(context),
+        "jobs" => jobs::module(context),
 
         _ => panic!("Unknown module: {}", module),
     }