From f8c8427c9c8ad24cd893cd728ed6ba79024fd66d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fran=C3=A7ois?= <mockersf@gmail.com>
Date: Fri, 16 Jul 2021 01:38:41 +0000
Subject: [PATCH] add check for unused dependencies (#2461)

# Objective

- Unused dependencies are bad

## Solution

- Add check for unused dependencies with https://github.com/est31/cargo-udeps - #2455
---
 .github/bors.toml        |  1 +
 .github/workflows/ci.yml | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/.github/bors.toml b/.github/bors.toml
index 20c21ea8281588..078b78bd2c0b2e 100644
--- a/.github/bors.toml
+++ b/.github/bors.toml
@@ -11,6 +11,7 @@ status = [
     "run-examples",
     "check-doc",
     "check-missing-examples-in-docs",
+    "check-unused-dependencies",
 ]
 
 use_squash_merge = true
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4fe6ee5d013f48..af23b4c778af95 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -168,3 +168,22 @@ jobs:
           file-types: '[".rs"]'
           exclude-folders: '["./examples/ios"]'
           exclude-files: '[]'
+
+  check-unused-dependencies:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: nightly
+          override: true
+
+      - name: Installs cargo-udeps
+        run: cargo install cargo-udeps
+
+      - name: Install alsa and udev
+        run: sudo apt-get update; sudo apt-get install --no-install-recommends libasound2-dev libudev-dev
+
+      - name: Run cargo udeps
+        run: cargo udeps