internal/workflows: cache installed packages

This avoids re-downloading packages on every run.

Signed-off-by: Ophestra <cat@gensokyo.uk>

2 files changed, 33 insertions, 14 deletions

diff --git a/internal/workflows/step.go b/internal/workflows/step.go
index 219ed78b..83d9c5f3 100644
--- a/internal/workflows/step.go
+++ b/internal/workflows/step.go
@@ -2,6 +2,8 @@
 
 package main
 
+import "strings"
+
 // fixup is a step to work around a Podman regression introduced by a bad
 // container escape mitigation.
 var fixup = Step{
@@ -55,9 +57,35 @@ func newCIRequest(display, name, id string) Step {
 var install = Step{
 	Name: "Install hakurei",
 	Run: "HAKUREI_VERSION=\"$(cat cmd/dist/VERSION)-${{ steps.dist.outputs.rev }}\" && " +
-		"tar xf \"result/hakurei-$HAKUREI_VERSION-amd64.tar.gz\" && " +
-		"\"./hakurei-$HAKUREI_VERSION-amd64/install.sh\" && " +
-		"sudo -u ubuntu hakurei version",
+		"tar xf result/hakurei-$HAKUREI_VERSION*-amd64.tar.gz && " +
+		"./hakurei-$HAKUREI_VERSION*-amd64/install.sh && " +
+		"sudo -u ubuntu hakurei version && " +
+		"echo 'Defaults closefrom_override' > " +
+		"/etc/sudoers.d/closefrom_override && " +
+		"mkdir /var/empty",
+}
+
+// newTestsuite returns a step for running an integration test suite.
+func newTestsuite(name, prefix string) Step {
+	return Step{
+		Name: "Compile and run test suite",
+		Run: prefix + "rm -rf result && " +
+			"go run -tags=testsuite ./test/" + name,
+	}
+}
+
+// newPackages returns a job for installing the specified packages with
+// best-effort caching. Package names must not contain spaces.
+func newPackages(rev int, packages ...string) Step {
+	return Step{
+		Name: "Install packages",
+		Uses: "awalsh128/cache-apt-pkgs-action@v1",
+		With: []KV[any]{
+			{"packages", strings.Join(packages, " ")},
+			{"version", rev},
+			{"execute_install_scripts", true},
+		},
+	}
 }
 
 // newNixOSTest returns a step for running the named NixOS test.
diff --git a/internal/workflows/test.go b/internal/workflows/test.go
index d3290f16..40e1a076 100644
--- a/internal/workflows/test.go
+++ b/internal/workflows/test.go
@@ -59,11 +59,7 @@ var _ = (&Workflow{
 				fixup,
 				checkout,
 				toolchain,
-
-				{
-					Name: "install fuse and fs_mark",
-					Run:  "apt-get update && apt-get install -y fuse3 fsmark",
-				},
+				newPackages(0, "fuse3", "fsmark"),
 
 				newCIRequest("distribution", "dist -o result", "dist"),
 				install,
@@ -82,12 +78,7 @@ var _ = (&Workflow{
 						"setuid=1023,setgid=1023 /sdcard",
 				},
 
-				{
-					Name: "Compile and run test suite",
-					Run: "sharefs -V && rm -rf result && " +
-						"go run -tags=testsuite ./test/sharefs ubuntu",
-				},
-
+				newTestsuite("sharefs", "sharefs -V && "),
 				newUploadArtifact("test output", "fs_mark"),
 			},
 		}},