ci.yml: fix caching

Aux requires more dependencies than other jobs. It also doesn't fail as often as others.
Because of these two points aux will be the cache updating job.

Other jobs use actions/cache/restore and are the cache readers.
Old and gvisor are the special cases that are not gcr.io/syzkaller/env based and require additional GOMODCACHE param.

1 files changed, 43 insertions, 18 deletions

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 17b38a401..b8bb5746d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,6 +30,14 @@ jobs:
           path: gopath/src/github.com/google/syzkaller
           # This is needed for tools/check-commits.sh
           fetch-depth: 100
+      - id: get-date
+        run: echo "date=$(/bin/date -u "+%Y%m%d")" >> $GITHUB_OUTPUT
+        shell: bash
+      - name: update cache
+        uses: actions/cache@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-${{ steps.get-date.outputs.date }}
       # Run make presubmit_aux.
       - name: run
         env:
@@ -53,17 +61,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
-
-      - id: get-date
-        run: echo "date=$(/bin/date -u "+%Y%m%d+%T")" >> $GITHUB_OUTPUT
-        shell: bash
-      - name: test build cache
-        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
-          path: /root/.cache
-          key: ${{ runner.os }}-go-test-build-${{ steps.get-date.outputs.date }} #always miss and upload fresh item
-          restore-keys: ${{ runner.os }}-go-test-build- #read the freshest available after miss
-
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller
@@ -90,6 +92,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller
@@ -118,6 +125,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller
@@ -138,15 +150,11 @@ jobs:
           path: gopath/src/github.com/google/syzkaller
 
       # https://github.com/golang/go/issues/61608 to cache -race results.
-      - id: get-date
-        run: echo "date=$(/bin/date -u "+%Y%m%d+%T")" >> $GITHUB_OUTPUT
-        shell: bash
-      - name: test race cache
-        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8 # v3.3.1
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
         with:
-          path: /root/.cache
-          key: ${{ runner.os }}-go-test-race-${{ steps.get-date.outputs.date }} #always miss and upload fresh item
-          restore-keys: ${{ runner.os }}-go-test-race- #read the freshest available after miss
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
 
       - name: run
         run: |
@@ -165,6 +173,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller
@@ -175,6 +188,7 @@ jobs:
     container: gcr.io/syzkaller/old-env:latest
     env:
       GOPATH: /__w/syzkaller/syzkaller/gopath
+      GOMODCACHE: /syzkaller/.cache/gomod
       CI: true
       TERM: dumb
     steps:
@@ -182,6 +196,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller
@@ -193,6 +212,7 @@ jobs:
       options: --privileged
     env:
       GOPATH: /__w/syzkaller/syzkaller/gopath
+      GOMODCACHE: /syzkaller/.cache/gomod
       CI: true
       TERM: dumb
       GITHUB_ACTIONS: true
@@ -201,6 +221,11 @@ jobs:
         uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
         with:
           path: gopath/src/github.com/google/syzkaller
+      - name: restore cache
+        uses: actions/cache/restore@1bd1e32a3bdc45362d1e726936510720a7c30a57 # v4.2.0
+        with:
+          path: /syzkaller/.cache
+          key: ${{ runner.os }}-syzenv-
       - name: run
         run: |
           cd gopath/src/github.com/google/syzkaller