refactor: move act under internal

The runner is an application, not a library. `act/model` and
`act/exprparser` were the last packages anything outside this repository
consumed and they now live in actionslib, so nothing needs the rest of
`act` to be importable, and keeping it importable invites the coupling
that was just removed.

Import paths only, the files are unchanged.

Assisted-by: Codet:GPT-5.1-Codex

internal/act/ghcontext/github_context_test.go

@@ -0,0 +1,217 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Copyright 2022 The nektos/act Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package ghcontext
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"gitea.dev/actionslib/pkg/model"
+	log "github.com/sirupsen/logrus"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestSetRef(t *testing.T) {
+	log.SetLevel(log.DebugLevel)
+
+	oldFindGitRef := findGitRef
+	oldFindGitRevision := findGitRevision
+	defer func() { findGitRef = oldFindGitRef }()
+	defer func() { findGitRevision = oldFindGitRevision }()
+
+	findGitRef = func(ctx context.Context, file string) (string, error) {
+		return "refs/heads/master", nil
+	}
+
+	findGitRevision = func(ctx context.Context, file string) (string, string, error) {
+		return "", "1234fakesha", nil
+	}
+
+	tables := []struct {
+		eventName string
+		event     map[string]any
+		ref       string
+		refName   string
+	}{
+		{
+			eventName: "pull_request_target",
+			event:     map[string]any{},
+			ref:       "refs/heads/master",
+			refName:   "master",
+		},
+		{
+			eventName: "pull_request",
+			event: map[string]any{
+				"number": 1234.,
+			},
+			ref:     "refs/pull/1234/merge",
+			refName: "1234/merge",
+		},
+		{
+			eventName: "deployment",
+			event: map[string]any{
+				"deployment": map[string]any{
+					"ref": "refs/heads/somebranch",
+				},
+			},
+			ref:     "refs/heads/somebranch",
+			refName: "somebranch",
+		},
+		{
+			eventName: "release",
+			event: map[string]any{
+				"release": map[string]any{
+					"tag_name": "v1.0.0",
+				},
+			},
+			ref:     "refs/tags/v1.0.0",
+			refName: "v1.0.0",
+		},
+		{
+			eventName: "push",
+			event: map[string]any{
+				"ref": "refs/heads/somebranch",
+			},
+			ref:     "refs/heads/somebranch",
+			refName: "somebranch",
+		},
+		{
+			eventName: "unknown",
+			event: map[string]any{
+				"repository": map[string]any{
+					"default_branch": "main",
+				},
+			},
+			ref:     "refs/heads/main",
+			refName: "main",
+		},
+		{
+			eventName: "no-event",
+			event:     map[string]any{},
+			ref:       "refs/heads/master",
+			refName:   "master",
+		},
+	}
+
+	for _, table := range tables {
+		t.Run(table.eventName, func(t *testing.T) {
+			ghc := &model.GithubContext{
+				EventName: table.eventName,
+				BaseRef:   "master",
+				Event:     table.event,
+			}
+
+			SetRef(context.Background(), ghc, "main", "/some/dir")
+			ghc.SetRefTypeAndName()
+
+			assert.Equal(t, table.ref, ghc.Ref)
+			assert.Equal(t, table.refName, ghc.RefName)
+		})
+	}
+
+	t.Run("no-default-branch", func(t *testing.T) {
+		findGitRef = func(ctx context.Context, file string) (string, error) {
+			return "", errors.New("no default branch")
+		}
+
+		ghc := &model.GithubContext{
+			EventName: "no-default-branch",
+			Event:     map[string]any{},
+		}
+
+		SetRef(context.Background(), ghc, "", "/some/dir")
+
+		assert.Equal(t, "refs/heads/master", ghc.Ref)
+	})
+}
+
+func TestSetSha(t *testing.T) {
+	log.SetLevel(log.DebugLevel)
+
+	oldFindGitRef := findGitRef
+	oldFindGitRevision := findGitRevision
+	defer func() { findGitRef = oldFindGitRef }()
+	defer func() { findGitRevision = oldFindGitRevision }()
+
+	findGitRef = func(ctx context.Context, file string) (string, error) {
+		return "refs/heads/master", nil
+	}
+
+	findGitRevision = func(ctx context.Context, file string) (string, string, error) {
+		return "", "1234fakesha", nil
+	}
+
+	tables := []struct {
+		eventName string
+		event     map[string]any
+		sha       string
+	}{
+		{
+			eventName: "pull_request_target",
+			event: map[string]any{
+				"pull_request": map[string]any{
+					"base": map[string]any{
+						"sha": "pr-base-sha",
+					},
+				},
+			},
+			sha: "pr-base-sha",
+		},
+		{
+			eventName: "pull_request",
+			event: map[string]any{
+				"number": 1234.,
+			},
+			sha: "1234fakesha",
+		},
+		{
+			eventName: "deployment",
+			event: map[string]any{
+				"deployment": map[string]any{
+					"sha": "deployment-sha",
+				},
+			},
+			sha: "deployment-sha",
+		},
+		{
+			eventName: "release",
+			event:     map[string]any{},
+			sha:       "1234fakesha",
+		},
+		{
+			eventName: "push",
+			event: map[string]any{
+				"after":   "push-sha",
+				"deleted": false,
+			},
+			sha: "push-sha",
+		},
+		{
+			eventName: "unknown",
+			event:     map[string]any{},
+			sha:       "1234fakesha",
+		},
+		{
+			eventName: "no-event",
+			event:     map[string]any{},
+			sha:       "1234fakesha",
+		},
+	}
+
+	for _, table := range tables {
+		t.Run(table.eventName, func(t *testing.T) {
+			ghc := &model.GithubContext{
+				EventName: table.eventName,
+				BaseRef:   "master",
+				Event:     table.event,
+			}
+
+			SetSha(context.Background(), ghc, "/some/dir")
+
+			assert.Equal(t, table.sha, ghc.Sha)
+		})
+	}
+}