europa: Code Embedding POC

WIP PoC for code embedding

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>

tests/tasks.bats

@@ -132,3 +132,15 @@ setup() {
 
     "$DAGGER" --europa up ./newsecret.cue
 }
+
+@test "task: #Source" {
+    cd "$TESTDIR"/tasks/source
+    "$DAGGER" --europa up ./source.cue
+    "$DAGGER" --europa up ./source_include_exclude.cue
+
+    run "$DAGGER" --europa up ./source_invalid_path.cue
+    assert_failure
+
+    run "$DAGGER" --europa up ./source_not_exist.cue
+    assert_failure
+}

tests/tasks/source/hello.txt

@@ -0,0 +1 @@
+hello

tests/tasks/source/source.cue

@@ -0,0 +1,42 @@
+package main
+
+import (
+	"dagger.io/dagger/engine"
+)
+
+engine.#Plan & {
+	actions: {
+		image: engine.#Pull & {
+			source: "alpine:3.15.0@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3"
+		}
+
+		source: engine.#Source & {
+			path: "."
+		}
+
+		exec: engine.#Exec & {
+			input: image.output
+			mounts: code: {
+				dest:     "/src"
+				contents: source.output
+			}
+			args: ["/src/test.sh"]
+		}
+
+		verifyHello: engine.#ReadFile & {
+			input: source.output
+			path:  "/hello.txt"
+		} & {
+			// assert result
+			contents: "hello\n"
+		}
+
+		verifyWorld: engine.#ReadFile & {
+			input: source.output
+			path:  "/world.txt"
+		} & {
+			// assert result
+			contents: "world\n"
+		}
+	}
+}

tests/tasks/source/source_include_exclude.cue

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"dagger.io/dagger/engine"
+)
+
+engine.#Plan & {
+	actions: {
+		image: engine.#Pull & {
+			source: "alpine:3.15.0@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3"
+		}
+
+		sourceInclude: engine.#Source & {
+			path: "."
+			include: ["hello.txt"]
+		}
+
+		sourceExclude: engine.#Source & {
+			path: "."
+			exclude: ["hello.txt"]
+		}
+
+		test: engine.#Exec & {
+			input: image.output
+			mounts: {
+				include: {
+					dest:     "/include"
+					contents: sourceInclude.output
+				}
+				exclude: {
+					dest:     "/exclude"
+					contents: sourceExclude.output
+				}
+			}
+
+			args: ["sh", "-c",
+				#"""
+					test "$(find /include/ | wc -l)" -eq 1
+					test -f /include/hello.txt
+					test ! -f /exclude/hello.txt
+					"""#,
+			]
+		}
+	}
+}

tests/tasks/source/source_invalid_path.cue

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"dagger.io/dagger/engine"
+)
+
+engine.#Plan & {
+	actions: {
+		image: engine.#Pull & {
+			source: "alpine:3.15.0@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3"
+		}
+
+		source: engine.#Source & {
+			path: ".."
+		}
+	}
+}

tests/tasks/source/source_not_exist.cue

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"dagger.io/dagger/engine"
+)
+
+engine.#Plan & {
+	actions: {
+		image: engine.#Pull & {
+			source: "alpine:3.15.0@sha256:e7d88de73db3d3fd9b2d63aa7f447a10fd0220b7cbf39803c803f2af9ba256b3"
+		}
+
+		source: engine.#Source & {
+			path: "not/exist"
+		}
+	}
+}

tests/tasks/source/test.sh

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+echo -n hello world > /test.txt

tests/tasks/source/world.txt

@@ -0,0 +1 @@
+world