test: directory app manifest generation (#9503)

* test: directory app manifest generation

Signed-off-by: Michael Crenshaw <michael@crenshaw.dev>

* git doesn't support empty dirs

Signed-off-by: Michael Crenshaw <michael@crenshaw.dev>

reposerver/repository/repository.go

@@ -1099,7 +1099,7 @@ func findManifests(logCtx *log.Entry, appPath string, repoRoot string, env *v1al
 					return fmt.Errorf("failed to evaluate symlink at %q: %w", relPath, err)
 				}
 			}
-			if !files.Inbound(realPath, appPath) {
+			if !files.Inbound(realPath, repoRoot) {
 				logCtx.Warnf("illegal filepath in symlink: %s", realPath)
 				return fmt.Errorf("illegal filepath in symlink at %q", relPath)
 			}

reposerver/repository/repository_test.go

@@ -1716,6 +1716,127 @@ func TestFindManifests_Exclude_NothingMatches(t *testing.T) {
 		[]string{"nginx-deployment", "nginx-deployment-sub"}, []string{objs[0].GetName(), objs[1].GetName()})
 }
 
+
+
+func Test_findManifests(t *testing.T) {
+	logCtx := log.WithField("test", "test")
+	noRecurse := argoappv1.ApplicationSourceDirectory{Recurse: false}
+
+	t.Run("unreadable file throws error", func(t *testing.T) {
+		appDir := t.TempDir()
+		unreadablePath := filepath.Join(appDir, "unreadable.json")
+		err := os.WriteFile(unreadablePath, []byte{}, 0666)
+		require.NoError(t, err)
+		err = os.Chmod(appDir, 0000)
+		require.NoError(t, err)
+
+		manifests, err := findManifests(logCtx, appDir, appDir, nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+
+		// allow cleanup
+		err = os.Chmod(appDir, 0777)
+		if err != nil {
+			panic(err)
+		}
+	})
+
+	t.Run("no recursion when recursion is disabled", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/recurse", "./testdata/recurse", nil, noRecurse, nil)
+		assert.Len(t, manifests, 2)
+		assert.NoError(t, err)
+	})
+
+	t.Run("recursion when recursion is enabled", func(t *testing.T) {
+		recurse := argoappv1.ApplicationSourceDirectory{Recurse: true}
+		manifests, err := findManifests(logCtx, "./testdata/recurse", "./testdata/recurse", nil, recurse, nil)
+		assert.Len(t, manifests, 4)
+		assert.NoError(t, err)
+	})
+
+	t.Run("non-JSON/YAML is skipped", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/non-manifest-file", "./testdata/non-manifest-file", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.NoError(t, err)
+	})
+
+	t.Run("circular link should throw an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/circular-link")
+		manifests, err := findManifests(logCtx, "./testdata/circular-link", "./testdata/circular-link", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("out-of-bounds symlink should throw an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/out-of-bounds-link")
+		manifests, err := findManifests(logCtx, "./testdata/out-of-bounds-link", "./testdata/out-of-bounds-link", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("symlink to a regular file works", func(t *testing.T) {
+		repoRoot, err := filepath.Abs("./testdata/in-bounds-link")
+		require.NoError(t, err)
+		appPath, err := filepath.Abs("./testdata/in-bounds-link/app")
+		require.NoError(t, err)
+		manifests, err := findManifests(logCtx, appPath, repoRoot, nil, noRecurse, nil)
+		assert.Len(t, manifests, 1)
+		assert.NoError(t, err)
+	})
+
+	t.Run("symlink to nowhere should be ignored", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/link-to-nowhere", "./testdata/link-to-nowhere", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.NoError(t, err)
+	})
+
+	t.Run("partially valid YAML file throws an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/partially-valid-yaml")
+		manifests, err := findManifests(logCtx, "./testdata/partially-valid-yaml", "./testdata/partially-valid-yaml", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("invalid manifest throws an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/invalid-manifests")
+		manifests, err := findManifests(logCtx, "./testdata/invalid-manifests", "./testdata/invalid-manifests", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("irrelevant YAML gets skipped, relevant YAML gets parsed", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/irrelevant-yaml", "./testdata/irrelevant-yaml", nil, noRecurse, nil)
+		assert.Len(t, manifests, 1)
+		assert.NoError(t, err)
+	})
+
+	t.Run("multiple JSON objects in one file throws an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/json-list")
+		manifests, err := findManifests(logCtx, "./testdata/json-list", "./testdata/json-list", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("invalid JSON throws an error", func(t *testing.T) {
+		require.DirExists(t, "./testdata/invalid-json")
+		manifests, err := findManifests(logCtx, "./testdata/invalid-json", "./testdata/invalid-json", nil, noRecurse, nil)
+		assert.Empty(t, manifests)
+		assert.Error(t, err)
+	})
+
+	t.Run("valid JSON returns manifest and no error", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/valid-json", "./testdata/valid-json", nil, noRecurse, nil)
+		assert.Len(t, manifests, 1)
+		assert.NoError(t, err)
+	})
+
+	t.Run("YAML with an empty document doesn't throw an error", func(t *testing.T) {
+		manifests, err := findManifests(logCtx, "./testdata/yaml-with-empty-document", "./testdata/yaml-with-empty-document", nil, noRecurse, nil)
+		assert.Len(t, manifests, 1)
+		assert.NoError(t, err)
+	})
+}
+
 func TestTestRepoOCI(t *testing.T) {
 	service := newService(".")
 	_, err := service.TestRepository(context.Background(), &apiclient.TestRepositoryRequest{

reposerver/repository/testdata/circular-link/a.json

@@ -0,0 +1 @@
+b.json

reposerver/repository/testdata/circular-link/b.json

@@ -0,0 +1 @@
+a.json

reposerver/repository/testdata/in-bounds-link/app/cm.link.yaml

@@ -0,0 +1 @@
+../cm.yaml

reposerver/repository/testdata/in-bounds-link/cm.yaml

@@ -0,0 +1,2 @@
+apiVersion: v1
+kind: ServiceAccount

reposerver/repository/testdata/invalid-json/invalid.json

@@ -0,0 +1 @@
+[

reposerver/repository/testdata/irrelevant-yaml/irrelevant.yaml

@@ -0,0 +1 @@
+some: [irrelevant, yaml]

reposerver/repository/testdata/irrelevant-yaml/relevant.yaml

@@ -0,0 +1,2 @@
+apiVersion: v1
+kind: ConfigMap

reposerver/repository/testdata/json-list/list.json

@@ -0,0 +1,2 @@
+{"apiVersion": "v1", "kind": "ConfigMap"}
+{"apiVersion": "v1", "kind": "ConfigMap"}

reposerver/repository/testdata/link-to-nowhere/nowhere.json

@@ -0,0 +1 @@
+nowhere

reposerver/repository/testdata/out-of-bounds-link/out-of-bounds.json

@@ -0,0 +1 @@
+../out-of-bounds.json

reposerver/repository/testdata/partially-valid-yaml/partially-valid.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: ConfigMap
+---
+invalid:

reposerver/repository/testdata/valid-json/valid.json

@@ -0,0 +1 @@
+{"apiVersion": "v1", "kind": "ConfigMap"}

reposerver/repository/testdata/yaml-with-empty-document/has-empty.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: ConfigMap
+---
+---