upgrade default deno to 2.0.4, try to detect more deno apps, add test…

… for extremely minimal deno app

scanner/deno.go

@@ -1,24 +1,38 @@
 package scanner
 
-import "github.com/superfly/flyctl/internal/command/launch/plan"
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/superfly/flyctl/internal/command/launch/plan"
+)
 
 func configureDeno(sourceDir string, config *ScannerConfig) (*SourceInfo, error) {
 	if !checksPass(
 		sourceDir,
 		// default config files: https://deno.land/[email protected]/getting_started/configuration_file
 		fileExists("deno.json", "deno.jsonc"),
 		// deno.land and denopkg.com imports
-		dirContains("*.ts", "\"https?://deno\\.land/.*\"", "\"https?://denopkg\\.com/.*\""),
+		dirContains("*.ts", `"https?://deno\.land/.*"`, `"https?://denopkg\.com/.*"`, `import "(.*)\.tsx{0,}"`, `from "npm:.*"`, `from "jsr:.*"`, `Deno\.serve\(.*`, `Deno\.listen\(.*`),
 	) {
 		return nil, nil
 	}
 
+	var entrypoint string
+
+	for _, path := range []string{"index.ts", "app.ts", "server.ts"} {
+		if absFileExists(filepath.Join(sourceDir, path)) {
+			entrypoint = path
+			break
+		}
+	}
+
 	s := &SourceInfo{
 		Files:  templates("templates/deno"),
 		Family: "Deno",
 		Port:   8080,
 		Processes: map[string]string{
-			"app": "run --allow-net ./example.ts",
+			"app": fmt.Sprintf("run -A ./%s", entrypoint),
 		},
 		Env: map[string]string{
 			"PORT": "8080",

scanner/templates/deno/Dockerfile

@@ -1,6 +1,6 @@
 # Based on https://github.com/denoland/deno_docker/blob/main/alpine.dockerfile
 
-ARG DENO_VERSION=1.14.0
+ARG DENO_VERSION=2.0.4
 ARG BIN_IMAGE=denoland/deno:bin-${DENO_VERSION}
 FROM ${BIN_IMAGE} AS bin
 
@@ -24,4 +24,4 @@ WORKDIR /deno-dir
 COPY . .
 
 ENTRYPOINT ["/bin/deno"]
-CMD ["run", "--allow-net", "https://deno.land/std/examples/echo_server.ts"]
+CMD ["run", "https://deno.land/std/examples/echo_server.ts"]

test/deployer/deployer_test.go

@@ -319,6 +319,30 @@ func TestLaunchGoNoGoSum(t *testing.T) {
 	require.Contains(t, string(body), "Hello from Go!")
 }
 
+func TestLaunchDenoNoConfig(t *testing.T) {
+	deploy := testDeployer(t,
+		withFixtureApp("deno-no-config"),
+		createRandomApp,
+		testlib.WithoutCustomize,
+		testlib.WithouExtensions,
+		testlib.DeployNow,
+		withWorkDirAppSource,
+		testlib.CleanupBeforeExit,
+	)
+
+	manifest, err := deploy.Output().ArtifactManifest()
+	require.NoError(t, err)
+	require.NotNil(t, manifest)
+
+	require.Equal(t, "deno", manifest.Plan.Runtime.Language)
+
+	appName := deploy.Extra["appName"].(string)
+
+	body, err := testlib.RunHealthCheck(fmt.Sprintf("https://%s.fly.dev/", appName))
+	require.NoError(t, err)
+	require.Contains(t, string(body), "Hello, World!")
+}
+
 func createRandomApp(d *testlib.DeployTestRun) {
 	appName := d.CreateRandomAppName()
 	require.NotEmpty(d, appName)

test/fixtures/deno-no-config/index.ts

@@ -0,0 +1,3 @@
+Deno.serve({ port: 8080, hostname: "0.0.0.0" }, (_req) => {
+    return new Response("Hello, World!");
+});