tests: refactor to support flake setup

.github/workflows/fakedroid-odt.yml

@@ -21,15 +21,25 @@ jobs:
           name: nix-on-droid
           signingKey: "${{ secrets.CACHIX_SIGNING_KEY }}"
 
+      - name: Build fakedroid script
+        run: |
+          nix \
+            --log-format bar-with-logs \
+            --option keep-going true \
+            --show-trace \
+            build .#fakedroid \
+            --impure \
+            --out-link fakedroid
+
       - name: Initialize fakedroid
-        run: tests/fakedroid.sh echo INIT
+        run: ./fakedroid echo INIT
 
       - name: Run tests
         run: |
-          tests/fakedroid.sh mkdir -p .cache/nix-on-droid-self-test
-          tests/fakedroid.sh touch .cache/nix-on-droid-self-test/confirmation-granted
-          tests/fakedroid.sh nix-on-droid on-device-test
+          ./fakedroid mkdir -p .cache/nix-on-droid-self-test
+          ./fakedroid touch .cache/nix-on-droid-self-test/confirmation-granted
+          ./fakedroid nix-on-droid on-device-test
 
       - name: Push to cachix
         if: always() && github.event_name != 'pull_request'
-        run: tests/fakedroid.sh nix-shell -p cachix --run 'nix --extra-experimental-features nix-command path-info --all | cachix push nix-on-droid'
+        run: ./fakedroid nix-shell -p cachix --run 'nix --extra-experimental-features nix-command path-info --all | cachix push nix-on-droid'

flake.nix

@@ -57,9 +57,16 @@
     // flake-utils.lib.eachSystem [ "aarch64-linux" "i686-linux" "x86_64-darwin" "x86_64-linux" ] (system: {
       formatter = nixpkgs.legacyPackages.${system}.nixpkgs-fmt;
 
-      packages = import ./pkgs {
-        inherit system;
-        nixpkgs = nixpkgs-for-bootstrap;
-      };
+      packages =
+        (import ./pkgs {
+          inherit system;
+          nixpkgs = nixpkgs-for-bootstrap;
+        }).customPkgs
+        // {
+          fakedroid = import ./tests {
+            inherit system;
+            nixpkgs = nixpkgs-for-bootstrap;
+          };
+        };
     });
 }

pkgs/default.nix

@@ -51,7 +51,15 @@ let
     bootstrapZip = callPackage ./bootstrap-zip.nix { };
     prootTermux = callPackage ./cross-compiling/proot-termux.nix { };
     tallocStatic = callPackage ./cross-compiling/talloc-static.nix { };
+    prootTermuxTest = callPackage ./proot-termux {
+      inherit (pkgs) stdenv;
+      static = false;
+      outputBinaryName = "proot";
+    };
   };
 in
 
-customPkgs
+{
+  inherit (modules) config;
+  inherit customPkgs;
+}

tests/default.nix

@@ -0,0 +1,26 @@
+# Copyright (c) 2019-2022, see AUTHORS. Licensed under MIT License, see LICENSE.
+
+{ nixpkgs, system }:
+
+let
+  bootstrap = import ../pkgs {
+    inherit nixpkgs system;
+    nixOnDroidChannelURL = "file:///n-o-d/archive.tar.gz";
+  };
+in
+
+nixpkgs.legacyPackages.${system}.runCommand
+  "fakedroid"
+{
+  preferLocalBuild = true;
+  allowSubstitutes = false;
+}
+  ''
+    install -D -m755  ${./fakedroid.sh} $out
+
+    substituteInPlace $out \
+      --subst-var-by bootstrapZip "${bootstrap.customPkgs.bootstrapZip}" \
+      --subst-var-by prootTest "${bootstrap.customPkgs.prootTermuxTest}" \
+      --subst-var-by installationDir "${bootstrap.config.build.installationDir}" \
+      --subst-var-by homeDir "${bootstrap.config.user.home}" \
+  ''

tests/fakedroid.sh

@@ -8,15 +8,17 @@
 
 set -ueo pipefail
 
-REPO_DIR="$(dirname "$(dirname "$(readlink -f "$0")")")"
+# this allows to run this script from every place in this git repo
+REPO_DIR="$(git rev-parse --show-toplevel)"
+
 INJ_DIR="$REPO_DIR/.fakedroid/inj"
 ENV_DIR="$REPO_DIR/.fakedroid/env"
 
 QEMU_URL="https://github.com/multiarch/qemu-user-static/releases/download/v6.1.0-8/qemu-aarch64-static"
 QEMU="$INJ_DIR/qemu-aarch64"
 
-INSTALLATION_DIR="/data/data/com.termux.nix/files/usr"
-TARGET_HOME="/data/data/com.termux.nix/files/home"
+INSTALLATION_DIR="@installationDir@"
+TARGET_HOME="@homeDir@"
 
 mkdir -p "$INJ_DIR"
 mkdir -p "$ENV_DIR/"{"$INSTALLATION_DIR","$TARGET_HOME",n-o-d}
@@ -57,7 +59,7 @@ PROOT_ARGS=(
 [[ -e "$QEMU" ]] || wget "$QEMU_URL" -O "$QEMU"
 chmod +x "$QEMU"
 
-PROOT="$(nix-build --no-out-link tests/proot-test.nix)/bin/proot"
+PROOT="@prootTest@/bin/proot"
 
 
 # Do the first install if not installed yet:
@@ -65,11 +67,7 @@ PROOT="$(nix-build --no-out-link tests/proot-test.nix)/bin/proot"
 if [[ ! -e "$ENV_DIR/$INSTALLATION_DIR/etc" ||
         -e "$ENV_DIR/$INSTALLATION_DIR/etc/UNINITIALIZED" ]]; then
     # Build a zipball:
-    nix build --show-trace -f pkgs \
-        --argstr arch aarch64 \
-        --argstr nixOnDroidChannelURL file:///n-o-d/archive.tar.gz \
-        bootstrapZip -o "$INJ_DIR/nix-on-droid-aarch64"
-    ZIPBALL="$(realpath "$INJ_DIR/nix-on-droid-aarch64/bootstrap-aarch64.zip")"
+    ZIPBALL="@bootstrapZip@/bootstrap-aarch64.zip"
     # Unpack the zipball the way the Android app does it:
     pushd "$ENV_DIR/$INSTALLATION_DIR"
         unzip "$ZIPBALL"

tests/proot-test.nix

@@ -1,9 +0,0 @@
-# Copyright (c) 2019-2022, see AUTHORS. Licensed under MIT License, see LICENSE.
-
-{ pkgs ? (import ../pkgs/lib/load-nixpkgs.nix { }) }:
-
-pkgs.callPackage ../pkgs/proot-termux {
-  inherit (pkgs) stdenv;
-  static = false;
-  outputBinaryName = "proot";
-}