added support for displaying tags behind branch name

Cargo.lock

@@ -35,7 +35,7 @@ checksum = "0d6ef0072f8a535281e4876be788938b528e9a1d43900b82c2569af7da799125"
 
 [[package]]
 name = "fast-git-prompt"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "git2",
  "regex",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "fast-git-prompt"
-version = "0.1.1"
+version = "0.2.0"
 description = "A fast git prompt for zsh and bash."
 license = "MIT"
 repository = "https://github.com/MasterGordon/fast-git-prompt"

src/prompt_parts/branch_name.rs

@@ -1,3 +1,4 @@
+use crate::colors::{color, Color};
 use crate::prompt_parts::prompt_part::RenderablePromptPart;
 use git2::Repository;
 use schemars::JsonSchema;
@@ -5,7 +6,7 @@ use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Serialize, Deserialize, JsonSchema)]
 pub struct BranchName {
-    pub color: Option<String>,
+    pub color: Option<Color>,
 }
 
 impl RenderablePromptPart for BranchName {
@@ -16,6 +17,25 @@ impl RenderablePromptPart for BranchName {
         }?;
         let name = head.name()?;
         let last = name.split('/').last()?;
-        return Some(format!("{}{}", self.color.unwrap_or("".to_string()), last));
+        let head_commit = head.peel_to_commit().unwrap();
+        let mut current_tags: Vec<String> = vec![];
+        let tag_names = repo.tag_names(None);
+        for tag_name in tag_names.iter().flatten() {
+            let tag_object = repo.revparse_single(&format!("refs/tags/{}", tag_name?));
+
+            if let Ok(tag_commit) = tag_object.unwrap().peel_to_commit() {
+                if head_commit.id() == tag_commit.id() {
+                    if let Some(tag) = tag_name {
+                        current_tags.push(tag.to_string());
+                    }
+                }
+            }
+        }
+        let last_tag = current_tags.last();
+        if let Some(tag) = last_tag {
+            return Some(format!("{}{} ({})", color(self.color), last, tag));
+        } else {
+            return Some(format!("{}{}", color(self.color), last));
+        }
     }
 }