From 79276e0e9a8b4f91ea2727b8b88264b22054ee98 Mon Sep 17 00:00:00 2001
From: cyqsimon <28627918+cyqsimon@users.noreply.github.com>
Date: Tue, 16 Apr 2024 16:10:55 +0800
Subject: [PATCH 1/3] CI: use sccache to speed up CI

---
 .github/workflows/ci.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 11027ba8..6d5697ee 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -50,6 +50,9 @@ jobs:
     name: Test on each target
     needs: get-msrv
     env:
+      # use sccache
+      SCCACHE_GHA_ENABLED: "true"
+      RUSTC_WRAPPER: "sccache"
       # Emit backtraces on panics.
       RUST_BACKTRACE: 1
     runs-on: ${{ matrix.os }}
@@ -114,6 +117,9 @@ jobs:
           toolchain: ${{ matrix.rust }}
           targets: ${{ matrix.target }}
           components: clippy
+      
+      - name: Set up sccache
+        uses: mozilla-actions/sccache-action@v0.0.4
 
       - name: Install cross
         if: matrix.cargo == 'cross'

From b78dd268eabf8fdd0c9842d8e19bcc2d8bac39eb Mon Sep 17 00:00:00 2001
From: cyqsimon <28627918+cyqsimon@users.noreply.github.com>
Date: Tue, 16 Apr 2024 16:12:20 +0800
Subject: [PATCH 2/3] Write changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc98dfdf..5560e2a1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 * CI: add builds for target `aarch64-linux-android` #384 - @flxo
 * CI: Keep GitHub Actions up to date with GitHub's Dependabot #403 - @cclauss
 * CI: Enable more cross-compiled builds #401 - @cyqsimon
+* CI: use sccache to speed up CI #408 - @cyqsimon
 
 ## Changed
 

From 432aba6af0c7c01ad35fecb76fd1ad2ff1dd7265 Mon Sep 17 00:00:00 2001
From: cyqsimon <28627918+cyqsimon@users.noreply.github.com>
Date: Tue, 16 Apr 2024 16:59:29 +0800
Subject: [PATCH 3/3] Only use sccache for non-cross targets

---
 .github/workflows/ci.yaml | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 6d5697ee..8e01f197 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -51,8 +51,10 @@ jobs:
     needs: get-msrv
     env:
       # use sccache
-      SCCACHE_GHA_ENABLED: "true"
-      RUSTC_WRAPPER: "sccache"
+      # It's too much of a hassle to set up sccache in cross.
+      # See https://github.com/cross-rs/cross/wiki/Recipes#sccache.
+      SCCACHE_GHA_ENABLED: ${{ matrix.cargo == 'cargo' && 'true' || 'false'}}
+      RUSTC_WRAPPER: ${{ matrix.cargo == 'cargo' && 'sccache' || '' }}
       # Emit backtraces on panics.
       RUST_BACKTRACE: 1
     runs-on: ${{ matrix.os }}
@@ -119,6 +121,9 @@ jobs:
           components: clippy
       
       - name: Set up sccache
+        # It's too much of a hassle to set up sccache in cross.
+        # See https://github.com/cross-rs/cross/wiki/Recipes#sccache.
+        if: matrix.cargo == 'cargo'
         uses: mozilla-actions/sccache-action@v0.0.4
 
       - name: Install cross