ci: add coverage badge pipeline and README badges

.drone.yml

@@ -6,6 +6,9 @@ trigger:
   event:
     - push
     - pull_request
+  branch:
+    exclude:
+      - badges
 
 steps:
   - name: test
@@ -15,6 +18,41 @@ steps:
       - cargo clippy -- -D warnings
       - cargo test
 
+  - name: coverage
+    image: xd009642/tarpaulin
+    privileged: true
+    environment:
+      GITEA_TOKEN:
+        from_secret: gitea_token
+    commands:
+      - apt-get update -qq && apt-get install -y -qq jq git curl
+      - cargo tarpaulin --out Json 2>/dev/null
+      - |
+        PCT=$(jq '.coverage | floor' tarpaulin-report.json)
+        if [ "$PCT" -ge 80 ]; then COLOR="brightgreen"
+        elif [ "$PCT" -ge 60 ]; then COLOR="yellow"
+        else COLOR="red"; fi
+        curl -sf "https://img.shields.io/badge/coverage-${PCT}%25-${COLOR}.svg" -o coverage.svg
+      - |
+        git config --global user.email "ci@drone"
+        git config --global user.name "Drone CI"
+        REPO="https://cinco:${GITEA_TOKEN}@git.cincoeuzebio.com/cinco/Tmuxido.git"
+        if git clone --branch badges --single-branch "$REPO" _badges 2>/dev/null; then
+          cp coverage.svg _badges/
+          cd _badges
+          git add coverage.svg
+          git diff --cached --quiet || git commit -m "ci: update coverage badge [CI SKIP]"
+          git push
+        else
+          mkdir _badges && cp coverage.svg _badges/
+          cd _badges && git init
+          git remote add origin "$REPO"
+          git checkout --orphan badges
+          git add coverage.svg
+          git commit -m "ci: add coverage badge"
+          git push origin badges
+        fi
+
 ---
 kind: pipeline
 type: docker

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [Unreleased]
+
+### Added
+- Coverage badge generated by `cargo-tarpaulin` in CI, hosted on the `badges` branch
+- CI status, coverage, version, and Rust edition badges in README
+
 ## [0.2.1] - 2026-02-28
 
 ### Added

README.md

@@ -1,5 +1,10 @@
 # tmuxido
 
+[![CI](https://drone.cincoeuzebio.com/api/badges/cinco/Tmuxido/status.svg)](https://drone.cincoeuzebio.com/cinco/Tmuxido)
+[![Coverage](https://git.cincoeuzebio.com/cinco/Tmuxido/raw/branch/badges/coverage.svg)](https://drone.cincoeuzebio.com/cinco/Tmuxido)
+[![Version](https://img.shields.io/gitea/v/release/cinco/Tmuxido?gitea_url=https%3A%2F%2Fgit.cincoeuzebio.com&label=version)](https://git.cincoeuzebio.com/cinco/Tmuxido/releases)
+![Rust 2024](https://img.shields.io/badge/rust-edition_2024-orange?logo=rust)
+
 A Rust-based tool to quickly find and open projects in tmux using fzf. No external dependencies except tmux and fzf!
 
 ## Features