chore(3p|nix): Remove typed Go r/2159

Nobody has actually done any experimentation with typed Go, so we're
getting rid of it for now - it's causing annoying IFD during build
graph generation.

Change-Id: Ibac3dea98ebed1b3ee08acda184d24c500cf695d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2458
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: Profpatsch <mail@profpatsch.de>

1 files changed, 0 insertions, 316 deletions

diff --git a/ops/besadii/main.go2 b/ops/besadii/main.go2
deleted file mode 100644
index 998c677010bc..000000000000
--- a/ops/besadii/main.go2
+++ /dev/null
@@ -1,316 +0,0 @@
-// Copyright 2019-2020 Google LLC.
-// SPDX-License-Identifier: Apache-2.0
-//
-// besadii is a small CLI tool that is invoked as a hook by various
-// programs to cause CI-related actions.
-//
-// It supports the following modes & operations:
-//
-// Gerrit (ref-updated) hook:
-// - Trigger Buildkite CI builds
-// - Trigger SourceGraph (cs.tvl.fyi) repository index updates
-//
-// Buildkite (post-command) hook:
-// - Submit CL verification status back to Gerrit
-package main
-
-import (
-	"bytes"
-	"encoding/json"
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"log/syslog"
-	"net/http"
-	"os"
-	"path"
-	"regexp"
-)
-
-var branchRegexp = regexp.MustCompile(`^refs/heads/(.*)$`)
-var metaRegexp = regexp.MustCompile(`^refs/changes/\d{0,2}/(\d+)/meta$`)
-var patchsetRegexp = regexp.MustCompile(`^refs/changes/\d{0,2}/(\d+)/(\d+)$`)
-
-// refUpdated is a struct representing the information passed to
-// besadii when it is invoked as Gerrit's refUpdated hook.
-//
-// https://gerrit.googlesource.com/plugins/hooks/+/HEAD/src/main/resources/Documentation/hooks.md#ref_updated
-type refUpdated struct {
-	project   string
-	ref       string
-	commit    string
-	submitter string
-	email     string
-
-	changeId *string
-	patchset *string
-}
-
-type Author struct {
-	Name  string `json:"name"`
-	Email string `json:"email"`
-}
-
-// Build is the representation of a Buildkite build as described on
-// https://buildkite.com/docs/apis/rest-api/builds#create-a-build
-type Build struct {
-	Commit  string            `json:"commit"`
-	Branch  string            `json:"branch"`
-	Message string            `json:"message"`
-	Author  Author            `json:"author"`
-	Env     map[string]string `json:"env"`
-}
-
-// Trigger a build of a given branch & commit on Buildkite
-func triggerBuild(log *syslog.Writer, token string, update *refUpdated) error {
-	var message string
-	env := make(map[string]string)
-
-	if update.changeId != nil && update.patchset != nil {
-		env["GERRIT_CHANGE_ID"] = *update.changeId
-		env["GERRIT_PATCHSET"] = *update.patchset
-		message = fmt.Sprintf(":llama: depot @ https://cl.tvl.fyi/c/depot/+/%s/%s", *update.changeId, *update.patchset)
-	} else {
-		message = fmt.Sprintf(":llama: depot @ %s", update.commit)
-	}
-
-	build := Build{
-		Commit:  update.commit,
-		Branch:  update.ref,
-		Message: message,
-		Env:     env,
-		Author: Author{
-			Name:  update.submitter,
-			Email: update.email,
-		},
-	}
-
-	body, _ := json.Marshal(build)
-	reader := ioutil.NopCloser(bytes.NewReader(body))
-
-	req, err := http.NewRequest("POST", "https://api.buildkite.com/v2/organizations/tvl/pipelines/depot/builds", reader)
-	if err != nil {
-		return fmt.Errorf("failed to create an HTTP request: %w", err)
-	}
-
-	req.Header.Add("Authorization", "Bearer "+token)
-	req.Header.Add("Content-Type", "application/json")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		// This might indicate a temporary error on the Buildkite side.
-		return fmt.Errorf("failed to send Buildkite request: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != 201 {
-		respBody, _ := ioutil.ReadAll(resp.Body)
-		log.Err(fmt.Sprintf("received non-success response from Buildkite: %s (%v)", respBody, resp.Status))
-	} else {
-		fmt.Fprintf(log, "triggered Buildkite build for ref %q at commit %q", update.ref, update.commit)
-	}
-
-	return nil
-}
-
-// Trigger a Sourcegraph repository index update on cs.tvl.fyi.
-//
-// https://docs.sourcegraph.com/admin/repo/webhooks
-func triggerIndexUpdate(token string) error {
-	req, err := http.NewRequest("POST", "https://cs.tvl.fyi/.api/repos/depot/-/refresh", nil)
-	if err != nil {
-		return err
-	}
-
-	req.Header.Add("Authorization", "token "+token)
-
-	_, err = http.DefaultClient.Do(req)
-	return err
-}
-
-func refUpdatedFromFlags() (*refUpdated, error) {
-	var update refUpdated
-
-	flag.StringVar(&update.project, "project", "", "Gerrit project")
-	flag.StringVar(&update.commit, "newrev", "", "new revision")
-	flag.StringVar(&update.email, "submitter", "", "Submitter email")
-	flag.StringVar(&update.submitter, "submitter-username", "", "Submitter username")
-	flag.StringVar(&update.ref, "refname", "", "updated reference name")
-
-	// Gerrit passes more flags than we want, but Rob Pike decided[0] in
-	// 2013 that the Go art project will not allow users to ignore flags
-	// because he "doesn't like it". The following code ignores the
-	// flags.
-	//
-	// [0]: https://github.com/golang/go/issues/6112#issuecomment-66083768
-	var _old string
-	flag.StringVar(&_old, "oldrev", "", "")
-
-	flag.Parse()
-
-	if update.project == "" || update.ref == "" || update.commit == "" || update.submitter == "" {
-		// If we get here, the user is probably being a dummy and invoking
-		// this manually - but incorrectly.
-		return nil, fmt.Errorf("'ref-updated' hook invoked without required arguments")
-	}
-
-	if update.project != "depot" || metaRegexp.MatchString(update.ref) {
-		// this is not an error, but also not something we handle.
-		return nil, nil
-	}
-
-	if branchRegexp.MatchString(update.ref) {
-		// these refs don't need special handling, just move on
-		return &update, nil
-	}
-
-	if matches := patchsetRegexp.FindStringSubmatch(update.ref); matches != nil {
-		update.changeId = &matches[1]
-		update.patchset = &matches[2]
-		return &update, nil
-	}
-
-	return nil, fmt.Errorf("besadii does not support updates for this type of ref (%q)", update.ref)
-}
-
-func refUpdatedMain() {
-	// Logging happens in syslog for Gerrit hooks because we don't want
-	// the hook output to be intermingled with Gerrit's own output
-	// stream
-	log, err := syslog.New(syslog.LOG_INFO|syslog.LOG_USER, "besadii")
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "failed to open syslog: %s\n", err)
-		os.Exit(1)
-	}
-
-	update, err := refUpdatedFromFlags()
-	if err != nil {
-		log.Err(fmt.Sprintf("failed to parse ref update: %s", err))
-		os.Exit(1)
-	}
-
-	if update == nil { // the project was not 'depot'
-		log.Err("build triggers are only supported for the 'depot' project")
-		os.Exit(0)
-	}
-
-	buildkiteToken, err := ioutil.ReadFile("/etc/secrets/buildkite-besadii")
-	if err != nil {
-		log.Alert(fmt.Sprintf("buildkite token could not be read: %s", err))
-		os.Exit(1)
-	}
-
-	sourcegraphToken, err := ioutil.ReadFile("/etc/secrets/sourcegraph-token")
-	if err != nil {
-		log.Alert(fmt.Sprintf("sourcegraph token could not be read: %s", err))
-		os.Exit(1)
-	}
-
-	err = triggerBuild(log, string(buildkiteToken), update)
-	if err != nil {
-		log.Err(fmt.Sprintf("failed to trigger Buildkite build: %s", err))
-	}
-
-	err = triggerIndexUpdate(string(sourcegraphToken))
-	if err != nil {
-		log.Err(fmt.Sprintf("failed to trigger sourcegraph index update: %s", err))
-	}
-	log.Info("triggered sourcegraph index update")
-}
-
-// reviewInput is a struct representing the data submitted to Gerrit
-// to post a review on a CL.
-//
-// https://gerrit-review.googlesource.com/Documentation/rest-api-changes.html#review-input
-type reviewInput struct {
-	Message                        string         `json:"message"`
-	Labels                         map[string]int `json:"labels"`
-	OmitDuplicateComments          bool           `json:"omit_duplicate_comments"`
-	IgnoreDefaultAttentionSetRules bool           `json:"ignore_default_attention_set_rules"`
-}
-
-func postCommandMain() {
-	changeId := os.Getenv("GERRIT_CHANGE_ID")
-	patchset := os.Getenv("GERRIT_PATCHSET")
-
-	if changeId == "" || patchset == "" {
-		// If these variables are unset, but the hook was invoked, the
-		// build was most likely for a branch and not for a CL - no status
-		// needs to be reported back to Gerrit!
-		fmt.Println("This isn't a CL build, nothing to do. Have a nice day!")
-		return
-	}
-
-	if os.Getenv("BUILDKITE_LABEL") != ":duck:" {
-		// this is not the build stage, don't do anything.
-		return
-	}
-
-	gerritPassword, err := ioutil.ReadFile("/etc/secrets/buildkite-gerrit")
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "Gerrit password could not be read: %s", err)
-		os.Exit(1)
-	}
-
-	var verified int
-	var verb string
-
-	if os.Getenv("BUILDKITE_COMMAND_EXIT_STATUS") == "0" {
-		verified = 1 // Verified: +1 in Gerrit
-		verb = "passed"
-	} else {
-		verified = -1
-		verb = "failed"
-	}
-
-	msg := fmt.Sprintf("Build of patchset %s %s: %s", patchset, verb, os.Getenv("BUILDKITE_BUILD_URL"))
-	review := reviewInput{
-		Message:               msg,
-		OmitDuplicateComments: true,
-		Labels: map[string]int{
-			"Verified": verified,
-		},
-
-		// Update the attention set if we are failing this patchset.
-		IgnoreDefaultAttentionSetRules: verified == 1,
-	}
-
-	body, _ := json.Marshal(review)
-	reader := ioutil.NopCloser(bytes.NewReader(body))
-
-	url := fmt.Sprintf("https://cl.tvl.fyi/a/changes/%s/revisions/%s/review", changeId, patchset)
-	req, err := http.NewRequest("POST", url, reader)
-	if err != nil {
-		fmt.Fprintf(os.Stderr, "failed to create an HTTP request: %w", err)
-		os.Exit(1)
-	}
-
-	req.SetBasicAuth("buildkite", string(gerritPassword))
-	req.Header.Add("Content-Type", "application/json")
-
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		fmt.Errorf("failed to update CL on Gerrit: %w", err)
-	}
-	defer resp.Body.Close()
-
-	if resp.StatusCode != 200 {
-		respBody, _ := ioutil.ReadAll(resp.Body)
-		fmt.Fprintf(os.Stderr, "received non-success response from Gerrit: %s (%v)", respBody, resp.Status)
-	} else {
-		fmt.Printf("Updated CI status on https://cl.tvl.fyi/c/depot/+/%s/%s", changeId, patchset)
-	}
-}
-
-func main() {
-	bin := path.Base(os.Args[0])
-
-	if bin == "ref-updated" {
-		refUpdatedMain()
-	} else if bin == "post-command" {
-		postCommandMain()
-	} else {
-		fmt.Fprintf(os.Stderr, "besadii does not know how to be invoked as %q, sorry!", bin)
-		os.Exit(1)
-	}
-}