Merge topic 'gitlab-ci-with-sccache'

85f7fbff gitlab-ci: vendor used dependencies
19a81f8e gitlab-ci: use sccache
91482325 gitlab-ci: refactor out clippy job configuration
52c4b873 gitlab-ci: add script to download sccache
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !74

.gitlab-ci.yml

@@ -13,10 +13,24 @@ before_script:
 .cargo_update: &cargo_update
     - cargo generate-lockfile $GENERATE_LOCKFILE_ARGS
     - cargo fetch --locked
+    - mkdir .cargo
+    - cargo vendor > .cargo/config
+
+.cargo_clippy: &cargo_clippy
+    # Only use it if it's available; no need to fail the build due to something
+    # gone wrong here.
+    - .gitlab/ci/sccache.sh && export RUSTC_WRAPPER=$PWD/.gitlab/sccache
+    - rustup component add clippy
+    - cargo clippy --frozen --tests --all --verbose -- -D warnings
+    - ".gitlab/sccache --show-stats || :"
 
 .cargo_build: &cargo_build
+    # Only use it if it's available; no need to fail the build due to something
+    # gone wrong here.
+    - .gitlab/ci/sccache.sh && export RUSTC_WRAPPER=$PWD/.gitlab/sccache
     - cargo build $CARGO_BUILD_FROZEN --all --verbose
     - cargo test --frozen --all --no-run --verbose
+    - ".gitlab/sccache --show-stats || :"
 
 .cargo_test: &cargo_test
     - apt-get install -yqq --no-install-recommends git
@@ -32,6 +46,7 @@ before_script:
         # remove this variable.
         #CARGO_BUILD_FROZEN: --frozen
         CARGO_UPDATE_POLICY: newest
+        SCCACHE_REDIS: redis://minmus:6379
 
 .rust_stable: &rust_stable
     image: "rust:latest"
@@ -39,6 +54,7 @@ before_script:
     variables:
         CARGO_BUILD_FROZEN: --frozen
         CARGO_UPDATE_POLICY: newest
+        SCCACHE_REDIS: redis://minmus:6379
 
 .rust_nightly: &rust_nightly
     extends: .rust_stable
@@ -52,7 +68,8 @@ before_script:
     artifacts:
         expire_in: 60m
         paths:
-            - .cargo-cache
+            - vendor
+            - .cargo
             - Cargo.lock
     cache:
         key: cargo-cache-$CARGO_UPDATE_POLICY
@@ -60,6 +77,12 @@ before_script:
             - .cargo-cache
     interruptible: true
 
+.cargo_clippy_job: &cargo_clippy_job
+    stage: build
+    tags: *rust_tags
+    script: *cargo_clippy
+    interruptible: true
+
 .cargo_build_job: &cargo_build_job
     stage: build
     tags: *rust_tags
@@ -67,13 +90,10 @@ before_script:
     artifacts:
         expire_in: 60m
         paths:
-            - .cargo-cache
+            - vendor
+            - .cargo
             - Cargo.lock
             - target
-    cache:
-        key: build-cache-$CI_JOB_NAME
-        paths:
-            - target
     interruptible: true
 
 .cargo_test_job: &cargo_test_job
@@ -108,12 +128,9 @@ prepare:cargo-cache-mindeps:
 
 build:cargo-clippy:
     <<:
-        - *cargo_build_job
+        - *cargo_clippy_job
         - *rust_stable
         - *cargo_cache_newest
-    script:
-        - rustup component add clippy
-        - cargo clippy --frozen --tests --all --verbose -- -D warnings
 
 build:cargo-minimum:
     <<:

.gitlab/ci/sccache.sh

+#!/bin/sh
+
+set -e
+
+readonly version="0.2.12"
+readonly sha256sum="26fd04c1273952cc2a0f359a71c8a1857137f0ee3634058b3f4a63b69fc8eb7f"
+readonly filename="sccache-$version-x86_64-unknown-linux-musl"
+readonly tarball="$filename.tar.gz"
+
+cd .gitlab
+
+echo "$sha256sum  $tarball" > sccache.sha256sum
+curl -OL "https://github.com/mozilla/sccache/releases/download/$version/$tarball"
+sha256sum --check sccache.sha256sum
+tar xf "$tarball"
+mv "$filename/sccache" .