Implement clone --list

7 files changed, 1084 insertions, 3 deletions

diff --git a/client/go/.gitattributes b/client/go/.gitattributes
new file mode 100644
index 00000000000..6767a69b3b1
--- /dev/null
+++ b/client/go/.gitattributes
@@ -0,0 +1 @@
+**/testdata/* linguist-vendored
diff --git a/client/go/cmd/clone.go b/client/go/cmd/clone.go
index f2b9f20ef3d..9503a81debf 100644
--- a/client/go/cmd/clone.go
+++ b/client/go/cmd/clone.go
@@ -22,10 +22,11 @@ import (
 
 // Set this to test without downloading this file from github
 var existingSampleAppsZip string
+var listApps bool
 
 func init() {
-	existingSampleAppsZip = ""
 	rootCmd.AddCommand(cloneCmd)
+	cloneCmd.Flags().BoolVarP(&listApps, "list", "l", false, "List available sample applications")
 }
 
 var cloneCmd = &cobra.Command{
@@ -37,9 +38,23 @@ var cloneCmd = &cobra.Command{
 The application package is copied from a sample application in https://github.com/vespa-engine/sample-apps`,
 	Example:           "$ vespa clone vespa-cloud/album-recommendation my-app",
 	DisableAutoGenTag: true,
-	Args:              cobra.ExactArgs(2),
 	Run: func(cmd *cobra.Command, args []string) {
-		cloneApplication(args[0], args[1])
+		if listApps {
+			apps, err := listSampleApps()
+			if err != nil {
+				printErr(err, "Could not list sample applications")
+				return
+			}
+			for _, app := range apps {
+				log.Print(app)
+			}
+		} else {
+			if len(args) != 2 {
+				fatalErr(nil, "Expected exactly 2 arguments")
+				return
+			}
+			cloneApplication(args[0], args[1])
+		}
 	},
 }
 
diff --git a/client/go/cmd/clone_list.go b/client/go/cmd/clone_list.go
new file mode 100644
index 00000000000..4bcf65500c9
--- /dev/null
+++ b/client/go/cmd/clone_list.go
@@ -0,0 +1,81 @@
+package cmd
+
+import (
+	"encoding/json"
+	"net/http"
+	"sort"
+	"time"
+
+	"github.com/vespa-engine/vespa/client/go/util"
+)
+
+func listSampleApps() ([]string, error) {
+	return listSampleAppsAt("https://api.github.com/repos/vespa-engine/sample-apps/contents/")
+}
+
+func listSampleAppsAt(url string) ([]string, error) {
+	rfs, err := getRepositoryFiles(url)
+	if err != nil {
+		return nil, err
+	}
+	var apps []string
+	for _, rf := range rfs {
+		isApp, follow := isApp(rf)
+		if isApp {
+			apps = append(apps, rf.Path)
+		} else if follow {
+			apps2, err := listSampleAppsAt(rf.URL)
+			if err != nil {
+				return nil, err
+			}
+			apps = append(apps, apps2...)
+		}
+	}
+	sort.Strings(apps)
+	return apps, nil
+}
+
+func getRepositoryFiles(url string) ([]repositoryFile, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+	response, err := util.HttpDo(req, time.Minute, "GitHub")
+	var files []repositoryFile
+	dec := json.NewDecoder(response.Body)
+	if err := dec.Decode(&files); err != nil {
+		return nil, err
+	}
+	return files, nil
+}
+
+func isApp(rf repositoryFile) (ok bool, follow bool) {
+	if rf.Type != "dir" {
+		return false, false
+	}
+	if rf.Path == "" {
+		return false, false
+	}
+	if rf.Path[0] == '_' || rf.Path[0] == '.' {
+		return false, false
+	}
+	// These are just heuristics and must be updated if we add more directories that are not applications, or that
+	// contain multiple applications inside
+	switch rf.Name {
+	case "test", "bin", "src":
+		return false, false
+	}
+	switch rf.Path {
+	case "news", "vespa-cloud":
+		return false, true
+	}
+	return true, false
+}
+
+type repositoryFile struct {
+	Path    string `json:"path"`
+	Name    string `json:"name"`
+	Type    string `json:"type"`
+	URL     string `json:"url"`
+	HtmlURL string `json:"html_url"`
+}
diff --git a/client/go/cmd/clone_list_test.go b/client/go/cmd/clone_list_test.go
new file mode 100644
index 00000000000..846ad1a90e3
--- /dev/null
+++ b/client/go/cmd/clone_list_test.go
@@ -0,0 +1,66 @@
+package cmd
+
+import (
+	"io/ioutil"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/vespa-engine/vespa/client/go/util"
+)
+
+func TestListSampleApps(t *testing.T) {
+	c := &mockHttpClient{}
+	c.NextResponse(200, readTestData(t, "sample-apps-contents.json"))
+	c.NextResponse(200, readTestData(t, "sample-apps-news.json"))
+	c.NextResponse(200, readTestData(t, "sample-apps-vespa-cloud.json"))
+	util.ActiveHttpClient = c
+
+	apps, err := listSampleApps()
+	assert.Nil(t, err)
+	expected := []string{
+		"album-recommendation-monitoring",
+		"album-recommendation-selfhosted",
+		"basic-search-on-gke",
+		"boolean-search",
+		"dense-passage-retrieval-with-ann",
+		"generic-request-processing",
+		"http-api-using-request-handlers-and-processors",
+		"incremental-search",
+		"model-evaluation",
+		"msmarco-ranking",
+		"multiple-bundles",
+		"multiple-bundles-lib",
+		"news/app-1-getting-started",
+		"news/app-2-feed-and-query",
+		"news/app-3-searching",
+		"news/app-5-recommendation",
+		"news/app-6-recommendation-with-searchers",
+		"news/app-7-parent-child",
+		"operations",
+		"part-purchases-demo",
+		"secure-vespa-with-mtls",
+		"semantic-qa-retrieval",
+		"tensor-playground",
+		"text-search",
+		"transformers",
+		"use-case-shopping",
+		"vespa-chinese-linguistics",
+		"vespa-cloud/album-recommendation",
+		"vespa-cloud/album-recommendation-docproc",
+		"vespa-cloud/album-recommendation-prod",
+		"vespa-cloud/album-recommendation-searcher",
+		"vespa-cloud/cord-19-search",
+		"vespa-cloud/joins",
+		"vespa-cloud/vespa-documentation-search",
+	}
+	assert.Equal(t, expected, apps)
+}
+
+func readTestData(t *testing.T, name string) string {
+	contents, err := ioutil.ReadFile(filepath.Join("testdata", name))
+	if err != nil {
+		t.Fatal(err)
+	}
+	return string(contents)
+}
diff --git a/client/go/cmd/testdata/sample-apps-contents.json b/client/go/cmd/testdata/sample-apps-contents.json
new file mode 100644
index 00000000000..02824f01147
--- /dev/null
+++ b/client/go/cmd/testdata/sample-apps-contents.json
@@ -0,0 +1,610 @@
+[
+  {
+    "name": ".github",
+    "path": ".github",
+    "sha": "6bcd814282757c3ca7ba265972f000bc62a76aa8",
+    "size": 0,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/.github?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/tree/master/.github",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/6bcd814282757c3ca7ba265972f000bc62a76aa8",
+    "download_url": null,
+    "type": "dir",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/.github?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/6bcd814282757c3ca7ba265972f000bc62a76aa8",
+      "html": "https://github.com/vespa-engine/sample-apps/tree/master/.github"
+    }
+  },
+  {
+    "name": ".gitignore",
+    "path": ".gitignore",
+    "sha": "e33d8f27d17a696ae99b12063f553a53d0d08510",
+    "size": 163,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/.gitignore?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/.gitignore",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/e33d8f27d17a696ae99b12063f553a53d0d08510",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/.gitignore",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/.gitignore?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/e33d8f27d17a696ae99b12063f553a53d0d08510",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/.gitignore"
+    }
+  },
+  {
+    "name": "CONTRIBUTING.md",
+    "path": "CONTRIBUTING.md",
+    "sha": "56d974d3c4d9b5b8f1739c24fc293f822e2fcec8",
+    "size": 3814,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/CONTRIBUTING.md?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/CONTRIBUTING.md",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/56d974d3c4d9b5b8f1739c24fc293f822e2fcec8",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/CONTRIBUTING.md",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/CONTRIBUTING.md?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/56d974d3c4d9b5b8f1739c24fc293f822e2fcec8",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/CONTRIBUTING.md"
+    }
+  },
+  {
+    "name": "Code-of-Conduct.md",
+    "path": "Code-of-Conduct.md",
+    "sha": "a812e1cfa8e464fc4a0ba6743030662efa1e4244",
+    "size": 7414,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Code-of-Conduct.md?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/Code-of-Conduct.md",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/a812e1cfa8e464fc4a0ba6743030662efa1e4244",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/Code-of-Conduct.md",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Code-of-Conduct.md?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/a812e1cfa8e464fc4a0ba6743030662efa1e4244",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/Code-of-Conduct.md"
+    }
+  },
+  {
+    "name": "Gemfile",
+    "path": "Gemfile",
+    "sha": "a7befcbb3c5a4ff65d51ee222c27bc3aef92bdc8",
+    "size": 308,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Gemfile?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/Gemfile",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/a7befcbb3c5a4ff65d51ee222c27bc3aef92bdc8",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/Gemfile",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Gemfile?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/a7befcbb3c5a4ff65d51ee222c27bc3aef92bdc8",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/Gemfile"
+    }
+  },
+  {
+    "name": "LICENSE",
+    "path": "LICENSE",
+    "sha": "df0bb94aeb6578299d1995c791da29f8f00f0cbc",
+    "size": 11354,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/LICENSE?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/LICENSE",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/df0bb94aeb6578299d1995c791da29f8f00f0cbc",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/LICENSE",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/LICENSE?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/df0bb94aeb6578299d1995c791da29f8f00f0cbc",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/LICENSE"
+    }
+  },
+  {
+    "name": "README.md",
+    "path": "README.md",
+    "sha": "44b3d846b1c594196d1362a44c965b91482fb806",
+    "size": 8401,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/README.md?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/README.md",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/44b3d846b1c594196d1362a44c965b91482fb806",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/README.md",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/README.md?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/44b3d846b1c594196d1362a44c965b91482fb806",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/README.md"
+    }
+  },
+  {
+    "name": "Vagrantfile",
+    "path": "Vagrantfile",
+    "sha": "0cb4b6dbe12404fb0bfa67e8e950287cdad722f4",
+    "size": 913,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Vagrantfile?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/Vagrantfile",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/0cb4b6dbe12404fb0bfa67e8e950287cdad722f4",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/Vagrantfile",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/Vagrantfile?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/0cb4b6dbe12404fb0bfa67e8e950287cdad722f4",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/Vagrantfile"
+    }
+  },
+  {
+    "name": "_config.yml",
+    "path": "_config.yml",
+    "sha": "d0a1af407e12cd80401d55679b5566538a925cc6",
+    "size": 630,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/_config.yml?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/_config.yml",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/d0a1af407e12cd80401d55679b5566538a925cc6",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/_config.yml",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/_config.yml?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/d0a1af407e12cd80401d55679b5566538a925cc6",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/_config.yml"
+    }
+  },
+  {
+    "name": "_plugins-vespafeed",
+    "path": "_plugins-vespafeed",
+    "sha": "34a1dec1e26d0905f461a70ebdea5213e8510eea",
+    "size": 0,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/_plugins-vespafeed?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/tree/master/_plugins-vespafeed",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/34a1dec1e26d0905f461a70ebdea5213e8510eea",
+    "download_url": null,
+    "type": "dir",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/_plugins-vespafeed?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/34a1dec1e26d0905f461a70ebdea5213e8510eea",
+      "html": "https://github.com/vespa-engine/sample-apps/tree/master/_plugins-vespafeed"
+    }
+  },
+  {
+    "name": "album-recommendation-monitoring",
+    "path": "album-recommendation-monitoring",
+    "sha": "f2f816138535aae9c1080c8dca20e544b0a8fbde",
+    "size": 0,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/album-recommendation-monitoring?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/tree/master/album-recommendation-monitoring",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/f2f816138535aae9c1080c8dca20e544b0a8fbde",
+    "download_url": null,
+    "type": "dir",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/album-recommendation-monitoring?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/f2f816138535aae9c1080c8dca20e544b0a8fbde",
+      "html": "https://github.com/vespa-engine/sample-apps/tree/master/album-recommendation-monitoring"
+    }
+  },
+  {
+    "name": "album-recommendation-selfhosted",
+    "path": "album-recommendation-selfhosted",
+    "sha": "1355199dee65aba689b784a8c92977886e8b0dcb",
+    "size": 0,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/album-recommendation-selfhosted?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/tree/master/album-recommendation-selfhosted",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/1355199dee65aba689b784a8c92977886e8b0dcb",
+    "download_url": null,
+    "type": "dir",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/album-recommendation-selfhosted?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/1355199dee65aba689b784a8c92977886e8b0dcb",
+      "html": "https://github.com/vespa-engine/sample-apps/tree/master/album-recommendation-selfhosted"
+    }
+  },
+  {
+    "name": "aws_bootstrap.sh",
+    "path": "aws_bootstrap.sh",
+    "sha": "4451c011e7d84d31bda78c6bb64d1b39bf79543c",
+    "size": 945,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/aws_bootstrap.sh?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/blob/master/aws_bootstrap.sh",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/4451c011e7d84d31bda78c6bb64d1b39bf79543c",
+    "download_url": "https://raw.githubusercontent.com/vespa-engine/sample-apps/master/aws_bootstrap.sh",
+    "type": "file",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/aws_bootstrap.sh?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/blobs/4451c011e7d84d31bda78c6bb64d1b39bf79543c",
+      "html": "https://github.com/vespa-engine/sample-apps/blob/master/aws_bootstrap.sh"
+    }
+  },
+  {
+    "name": "basic-search-on-gke",
+    "path": "basic-search-on-gke",
+    "sha": "e3045c5e7e3d5a9604fe5d6e79e28276341e3190",
+    "size": 0,
+    "url": "https://api.github.com/repos/vespa-engine/sample-apps/contents/basic-search-on-gke?ref=master",
+    "html_url": "https://github.com/vespa-engine/sample-apps/tree/master/basic-search-on-gke",
+    "git_url": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/e3045c5e7e3d5a9604fe5d6e79e28276341e3190",
+    "download_url": null,
+    "type": "dir",
+    "_links": {
+      "self": "https://api.github.com/repos/vespa-engine/sample-apps/contents/basic-search-on-gke?ref=master",
+      "git": "https://api.github.com/repos/vespa-engine/sample-apps/git/trees/e3045c5e7e3d5a9604fe5d6e79e28276341e3190",
+      "html": "https://github.com/vespa-engine/sample-apps/tree/master/basic-search-on-gke"
+    }
+  },
+  {
+    "name": "boolean-search",
+    "path": "boolean-search",
+    "sha": "f698016bfba3492e36251bfdc7af27f3157dcb58",
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index 00000000000..495f2cf1294
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new file mode 100644
index 00000000000..3aa932c348f
--- /dev/null
+++ b/client/go/cmd/testdata/sample-apps-vespa-cloud.json
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