Implement push subcommand.

cmd/push.go

@@ -0,0 +1,32 @@
+package cmd
+
+import (
+	"github.com/github/codeql-action-sync/internal/cachedirectory"
+	"github.com/github/codeql-action-sync/internal/push"
+	"github.com/spf13/cobra"
+)
+
+var pushCmd = &cobra.Command{
+	Use:   "push",
+	Short: "Push the CodeQL Action from the local cache to a GitHub Enterprise Server installation.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		cacheDirectory := cachedirectory.NewCacheDirectory(rootFlags.cacheDir)
+		return push.Push(cmd.Context(), cacheDirectory, pushFlags.destinationURL, pushFlags.destinationToken, pushFlags.destinationRepository)
+	},
+}
+
+type pushFlagFields struct {
+	destinationURL        string
+	destinationToken      string
+	destinationRepository string
+}
+
+var pushFlags = pushFlagFields{}
+
+func (f *pushFlagFields) Init(cmd *cobra.Command) {
+	cmd.Flags().StringVar(&f.destinationURL, "destination-url", "", "The URL of the GitHub Enterprise instance to push to.")
+	cmd.MarkFlagRequired("destination-url")
+	cmd.Flags().StringVar(&f.destinationToken, "destination-token", "", "A token to access the API on the GitHub Enterprise instance.")
+	cmd.MarkFlagRequired("destination-token")
+	cmd.Flags().StringVar(&f.destinationRepository, "destination-repository", "github/codeql-action", "The name of the repository to create on GitHub Enterprise.")
+}

cmd/root.go

@@ -55,5 +55,8 @@ func Execute(ctx context.Context) error {
 	rootCmd.AddCommand(pullCmd)
 	pullFlags.Init(pullCmd)
 
+	rootCmd.AddCommand(pushCmd)
+	pushFlags.Init(pushCmd)
+
 	return rootCmd.ExecuteContext(ctx)
 }

go.mod

@@ -10,4 +10,5 @@ require (
 	github.com/pkg/errors v0.8.1
 	github.com/spf13/cobra v1.0.0
 	github.com/stretchr/testify v1.6.1
+	golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be
 )

internal/cachedirectory/cachedirectory.go

@@ -8,6 +8,7 @@ import (
 	"path"
 	"path/filepath"
 
+	"github.com/go-git/go-git/v5"
 	"github.com/pkg/errors"
 )
 
@@ -16,6 +17,8 @@ const errorNotACacheOrEmpty = "The cache directory you have selected is not empt
 const errorCacheParentDoesNotExist = "Cannot create cache directory because its parent, does not exist."
 const errorPushNonCache = "The directory you have provided does not appear to be valid. Please check it exists and that you have run the `pull` command to populate it."
 
+const CacheReferencePrefix = "refs/remotes/" + git.DefaultRemoteName + "/"
+
 type CacheDirectory struct {
 	path string
 }

internal/pull/pull.go

@@ -81,8 +81,8 @@ func (pullService *pullService) pullGit(fresh bool) error {
 	err = localRepository.FetchContext(pullService.ctx, &git.FetchOptions{
 		RemoteName: git.DefaultRemoteName,
 		RefSpecs: []config.RefSpec{
-			config.RefSpec("+refs/heads/*:refs/remotes/" + git.DefaultRemoteName + "/heads/*"),
-			config.RefSpec("+refs/tags/*:refs/remotes/" + git.DefaultRemoteName + "/tags/*"),
+			config.RefSpec("+refs/heads/*:" + cachedirectory.CacheReferencePrefix + "heads/*"),
+			config.RefSpec("+refs/tags/*:" + cachedirectory.CacheReferencePrefix + "tags/*"),
 		},
 		Progress: os.Stderr,
 		Tags:     git.NoTags,

internal/pull/pull_test.go

@@ -58,7 +58,7 @@ func TestPullGitFresh(t *testing.T) {
 	pullService := getTestPullService(t, temporaryDirectory, initialActionRepository, "")
 	err := pullService.pullGit(true)
 	require.NoError(t, err)
-	checkExpectedReferencesInCache(t, pullService.cacheDirectory, []string{
+	test.CheckExpectedReferencesInRepository(t, pullService.cacheDirectory.GitPath(), []string{
 		"b9f01aa2c50f49898d4c7845a66be8824499fe9d refs/remotes/origin/heads/main",
 		"26936381e619a01122ea33993e3cebc474496805 refs/remotes/origin/heads/v1",
 		"e529a54fad10a936308b2220e05f7f00757f8e7c refs/remotes/origin/heads/v3",
@@ -93,7 +93,7 @@ func TestPullGitNotFreshWithChanges(t *testing.T) {
 	pullService = getTestPullService(t, temporaryDirectory, modifiedActionRepository, "")
 	err = pullService.pullGit(false)
 	require.NoError(t, err)
-	checkExpectedReferencesInCache(t, pullService.cacheDirectory, []string{
+	test.CheckExpectedReferencesInRepository(t, pullService.cacheDirectory.GitPath(), []string{
 		"b9f01aa2c50f49898d4c7845a66be8824499fe9d refs/remotes/origin/heads/main",
 		"26936381e619a01122ea33993e3cebc474496805 refs/remotes/origin/heads/v1",
 		"33d42021633d74bcd0bf9c95e3d3159131a5faa7 refs/remotes/origin/heads/v3", // v3 was force-pushed, and should have been force-pulled too.

internal/pull/pull_test/codeql-action-initial.git/config

@@ -2,5 +2,3 @@
 	repositoryformatversion = 0
 	filemode = true
 	bare = true
-[remote "origin"]
-	url = /tmp/codeql-sim

internal/pull/pull_test/codeql-action-modified.git/config

@@ -2,5 +2,3 @@
 	repositoryformatversion = 0
 	filemode = true
 	bare = true
-[remote "origin"]
-	url = /tmp/codeql-sim