impl test, log patterns when .daggerignore found, lint, fix stdlib/file test imports

Signed-off-by: Tony Worm <tony@hofstadter.io>

tests/ignore/main.cue

@@ -1,21 +1,41 @@
-package main
+package test
 
 import (
+	"dagger.io/alpine"
 	"dagger.io/dagger"
 	"dagger.io/llb"
 )
 
-dir: dagger.#Artifact
+TestData: dagger.#Artifact
 
-ignore: {
+_expected: """
+	/src/b.txt
+	
+	/src/foo:
+	bar.txt
+	
+	"""
+
+TestIgnore: {
 	string
 	#compute: [
-		llb.#FetchContainer & { ref: "debian:buster" },
+		llb.#Load & {from: alpine.#Image},
 		llb.#Exec & {
-			args: ["bash", "-c", "ls -lh /src > /out.txt"]
-			mount: "/src": { from: dir }
+			args: ["sh", "-c", "ls /src/* > /out.txt"]
+			mount: "/src": from: TestData
+		},
+		llb.#Export & {source: "/out.txt"},
+		llb.#Exec & {
+			args: [
+				"sh",
+				"-ec",
+				"""
+				cat > /test.txt << EOF
+				\(_expected)
+				EOF
+				test "$(cat /out.txt)" = "$(cat /test.txt)"
+				""",
+			]
 		},
-		llb.#Export & { source: "/out.txt" },
 	]
 }
-

tests/ignore/testdata/.daggerignore

@@ -0,0 +1,2 @@
+a.txt
+*/*.json