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package cli
import (
"context"
"encoding/base64"
"encoding/json"
"errors"
"flag"
"fmt"
"io"
"math/rand"
"net"
"net/http"
"net/url"
"os"
"os/signal"
"path/filepath"
"runtime"
"strings"
"syscall"
"text/tabwriter"
"time"
"github.com/charmbracelet/lipgloss"
"github.com/mattn/go-isatty"
"github.com/mitchellh/go-wordwrap"
"golang.org/x/exp/slices"
"golang.org/x/xerrors"
"cdr.dev/slog"
"github.com/coder/coder/buildinfo"
"github.com/coder/coder/cli/clibase"
"github.com/coder/coder/cli/cliui"
"github.com/coder/coder/cli/config"
"github.com/coder/coder/coderd"
"github.com/coder/coder/coderd/gitauth"
"github.com/coder/coder/coderd/telemetry"
"github.com/coder/coder/codersdk"
"github.com/coder/coder/codersdk/agentsdk"
)
var (
Caret = cliui.DefaultStyles.Prompt.String()
// Applied as annotations to workspace commands
// so they display in a separated "help" section.
workspaceCommand = map[string]string{
"workspaces": "",
}
)
const (
varURL = "url"
varToken = "token"
varAgentToken = "agent-token"
varAgentURL = "agent-url"
varHeader = "header"
varNoOpen = "no-open"
varNoVersionCheck = "no-version-warning"
varNoFeatureWarning = "no-feature-warning"
varForceTty = "force-tty"
varVerbose = "verbose"
varDisableDirect = "disable-direct-connections"
notLoggedInMessage = "You are not logged in. Try logging in using 'coder login <url>'."
envNoVersionCheck = "CODER_NO_VERSION_WARNING"
envNoFeatureWarning = "CODER_NO_FEATURE_WARNING"
envSessionToken = "CODER_SESSION_TOKEN"
//nolint:gosec
envAgentToken = "CODER_AGENT_TOKEN"
envURL = "CODER_URL"
)
var errUnauthenticated = xerrors.New(notLoggedInMessage)
func (r *RootCmd) Core() []*clibase.Cmd {
// Please re-sort this list alphabetically if you change it!
return []*clibase.Cmd{
r.dotfiles(),
r.login(),
r.logout(),
r.netcheck(),
r.portForward(),
r.publickey(),
r.resetPassword(),
r.state(),
r.templates(),
r.tokens(),
r.users(),
r.version(defaultVersionInfo),
// Workspace Commands
r.configSSH(),
r.create(),
r.deleteWorkspace(),
r.list(),
r.ping(),
r.rename(),
r.schedules(),
r.show(),
r.speedtest(),
r.ssh(),
r.start(),
r.stop(),
r.update(),
r.restart(),
r.stat(),
// Hidden
r.gitssh(),
r.vscodeSSH(),
r.workspaceAgent(),
r.expCmd(),
}
}
func (r *RootCmd) AGPL() []*clibase.Cmd {
all := append(r.Core(), r.Server(func(_ context.Context, o *coderd.Options) (*coderd.API, io.Closer, error) {
api := coderd.New(o)
return api, api, nil
}))
return all
}
// Main is the entrypoint for the Coder CLI.
func (r *RootCmd) RunMain(subcommands []*clibase.Cmd) {
rand.Seed(time.Now().UnixMicro())
cmd, err := r.Command(subcommands)
if err != nil {
panic(err)
}
err = cmd.Invoke().WithOS().Run()
if err != nil {
if errors.Is(err, cliui.Canceled) {
//nolint:revive
os.Exit(1)
}
f := prettyErrorFormatter{w: os.Stderr}
f.format(err)
//nolint:revive
os.Exit(1)
}
}
func (r *RootCmd) Command(subcommands []*clibase.Cmd) (*clibase.Cmd, error) {
fmtLong := `Coder %s — A tool for provisioning self-hosted development environments with Terraform.
`
cmd := &clibase.Cmd{
Use: "coder [global-flags] <subcommand>",
Long: fmt.Sprintf(fmtLong, buildinfo.Version()) + formatExamples(
example{
Description: "Start a Coder server",
Command: "coder server",
},
example{
Description: "Get started by creating a template from an example",
Command: "coder templates init",
},
),
Handler: func(i *clibase.Invocation) error {
// fmt.Fprintf(i.Stderr, "env debug: %+v", i.Environ)
// The GIT_ASKPASS environment variable must point at
// a binary with no arguments. To prevent writing
// cross-platform scripts to invoke the Coder binary
// with a `gitaskpass` subcommand, we override the entrypoint
// to check if the command was invoked.
if gitauth.CheckCommand(i.Args, i.Environ.ToOS()) {
return r.gitAskpass().Handler(i)
}
return i.Command.HelpHandler(i)
},
}
cmd.AddSubcommands(subcommands...)
// Set default help handler for all commands.
cmd.Walk(func(c *clibase.Cmd) {
if c.HelpHandler == nil {
c.HelpHandler = helpFn()
}
})
var merr error
// Add [flags] to usage when appropriate.
cmd.Walk(func(cmd *clibase.Cmd) {
const flags = "[flags]"
if strings.Contains(cmd.Use, flags) {
merr = errors.Join(
merr,
xerrors.Errorf(
"command %q shouldn't have %q in usage since it's automatically populated",
cmd.FullUsage(),
flags,
),
)
return
}
var hasFlag bool
for _, opt := range cmd.Options {
if opt.Flag != "" {
hasFlag = true
break
}
}
if !hasFlag {
return
}
// We insert [flags] between the command's name and its arguments.
tokens := strings.SplitN(cmd.Use, " ", 2)
if len(tokens) == 1 {
cmd.Use = fmt.Sprintf("%s %s", tokens[0], flags)
return
}
cmd.Use = fmt.Sprintf("%s %s %s", tokens[0], flags, tokens[1])
})
// Add alises when appropriate.
cmd.Walk(func(cmd *clibase.Cmd) {
// TODO: we should really be consistent about naming.
if cmd.Name() == "delete" || cmd.Name() == "remove" {
if slices.Contains(cmd.Aliases, "rm") {
merr = errors.Join(
merr,
xerrors.Errorf("command %q shouldn't have alias %q since it's added automatically", cmd.FullName(), "rm"),
)
return
}
cmd.Aliases = append(cmd.Aliases, "rm")
}
})
// Sanity-check command options.
cmd.Walk(func(cmd *clibase.Cmd) {
for _, opt := range cmd.Options {
// Verify that every option is configurable.
if opt.Flag == "" && opt.Env == "" {
if cmd.Name() == "server" {
// The server command is funky and has YAML-only options, e.g.
// support links.
return
}
merr = errors.Join(
merr,
xerrors.Errorf("option %q in %q should have a flag or env", opt.Name, cmd.FullName()),
)
}
}
})
if merr != nil {
return nil, merr
}
var debugOptions bool
// Add a wrapper to every command to enable debugging options.
cmd.Walk(func(cmd *clibase.Cmd) {
h := cmd.Handler
if h == nil {
// We should never have a nil handler, but if we do, do not
// wrap it. Wrapping it just hides a nil pointer dereference.
// If a nil handler exists, this is a developer bug. If no handler
// is required for a command such as command grouping (e.g. `users'
// and 'groups'), then the handler should be set to the helper
// function.
// func(inv *clibase.Invocation) error {
// return inv.Command.HelpHandler(inv)
// }
return
}
cmd.Handler = func(i *clibase.Invocation) error {
if !debugOptions {
return h(i)
}
tw := tabwriter.NewWriter(i.Stdout, 0, 0, 4, ' ', 0)
_, _ = fmt.Fprintf(tw, "Option\tValue Source\n")
for _, opt := range cmd.Options {
_, _ = fmt.Fprintf(tw, "%q\t%v\n", opt.Name, opt.ValueSource)
}
tw.Flush()
return nil
}
})
if r.agentURL == nil {
r.agentURL = new(url.URL)
}
if r.clientURL == nil {
r.clientURL = new(url.URL)
}
globalGroup := &clibase.Group{
Name: "Global",
Description: `Global options are applied to all commands. They can be set using environment variables or flags.`,
}
cmd.Options = clibase.OptionSet{
{
Flag: varURL,
Env: envURL,
Description: "URL to a deployment.",
Value: clibase.URLOf(r.clientURL),
Group: globalGroup,
},
{
Flag: "debug-options",
Description: "Print all options, how they're set, then exit.",
Value: clibase.BoolOf(&debugOptions),
Group: globalGroup,
},
{
Flag: varToken,
Env: envSessionToken,
Description: fmt.Sprintf("Specify an authentication token. For security reasons setting %s is preferred.", envSessionToken),
Value: clibase.StringOf(&r.token),
Group: globalGroup,
},
{
Flag: varAgentToken,
Env: envAgentToken,
Description: "An agent authentication token.",
Value: clibase.StringOf(&r.agentToken),
Hidden: true,
Group: globalGroup,
},
{
Flag: varAgentURL,
Env: "CODER_AGENT_URL",
Description: "URL for an agent to access your deployment.",
Value: clibase.URLOf(r.agentURL),
Hidden: true,
Group: globalGroup,
},
{
Flag: varNoVersionCheck,
Env: envNoVersionCheck,
Description: "Suppress warning when client and server versions do not match.",
Value: clibase.BoolOf(&r.noVersionCheck),
Group: globalGroup,
},
{
Flag: varNoFeatureWarning,
Env: envNoFeatureWarning,
Description: "Suppress warnings about unlicensed features.",
Value: clibase.BoolOf(&r.noFeatureWarning),
Group: globalGroup,
},
{
Flag: varHeader,
Env: "CODER_HEADER",
Description: "Additional HTTP headers added to all requests. Provide as " + `key=value` + ". Can be specified multiple times.",
Value: clibase.StringArrayOf(&r.header),
Group: globalGroup,
},
{
Flag: varNoOpen,
Env: "CODER_NO_OPEN",
Description: "Suppress opening the browser after logging in.",
Value: clibase.BoolOf(&r.noOpen),
Hidden: true,
Group: globalGroup,
},
{
Flag: varForceTty,
Env: "CODER_FORCE_TTY",
Hidden: true,
Description: "Force the use of a TTY.",
Value: clibase.BoolOf(&r.forceTTY),
Group: globalGroup,
},
{
Flag: varVerbose,
FlagShorthand: "v",
Env: "CODER_VERBOSE",
Description: "Enable verbose output.",
Value: clibase.BoolOf(&r.verbose),
Group: globalGroup,
},
{
Flag: varDisableDirect,
Env: "CODER_DISABLE_DIRECT_CONNECTIONS",
Description: "Disable direct (P2P) connections to workspaces.",
Value: clibase.BoolOf(&r.disableDirect),
Group: globalGroup,
},
{
Flag: "debug-http",
Description: "Debug codersdk HTTP requests.",
Value: clibase.BoolOf(&r.debugHTTP),
Group: globalGroup,
Hidden: true,
},
{
Flag: config.FlagName,
Env: "CODER_CONFIG_DIR",
Description: "Path to the global `coder` config directory.",
Default: config.DefaultDir(),
Value: clibase.StringOf(&r.globalConfig),
Group: globalGroup,
},
}
err := cmd.PrepareAll()
if err != nil {
return nil, err
}
return cmd, nil
}
type contextKey int
const (
contextKeyLogger contextKey = iota
)
func ContextWithLogger(ctx context.Context, l slog.Logger) context.Context {
return context.WithValue(ctx, contextKeyLogger, l)
}
func LoggerFromContext(ctx context.Context) (slog.Logger, bool) {
l, ok := ctx.Value(contextKeyLogger).(slog.Logger)
return l, ok
}
func isTest() bool {
return flag.Lookup("test.v") != nil
}
// RootCmd contains parameters and helpers useful to all commands.
type RootCmd struct {
clientURL *url.URL
token string
globalConfig string
header []string
agentToken string
agentURL *url.URL
forceTTY bool
noOpen bool
verbose bool
disableDirect bool
debugHTTP bool
noVersionCheck bool
noFeatureWarning bool
}
func addTelemetryHeader(client *codersdk.Client, inv *clibase.Invocation) {
transport, ok := client.HTTPClient.Transport.(*headerTransport)
if !ok {
transport = &headerTransport{
transport: client.HTTPClient.Transport,
header: http.Header{},
}
client.HTTPClient.Transport = transport
}
var topts []telemetry.CLIOption
for _, opt := range inv.Command.FullOptions() {
if opt.ValueSource == clibase.ValueSourceNone || opt.ValueSource == clibase.ValueSourceDefault {
continue
}
topts = append(topts, telemetry.CLIOption{
Name: opt.Name,
ValueSource: string(opt.ValueSource),
})
}
ti := telemetry.CLIInvocation{
Command: inv.Command.FullName(),
Options: topts,
InvokedAt: time.Now(),
}
byt, err := json.Marshal(ti)
if err != nil {
// Should be impossible
panic(err)
}
// Per https://stackoverflow.com/questions/686217/maximum-on-http-header-values,
// we don't want to send headers that are too long.
s := base64.StdEncoding.EncodeToString(byt)
if len(s) > 4096 {
return
}
transport.header.Add(codersdk.CLITelemetryHeader, s)
}
// InitClient sets client to a new client.
// It reads from global configuration files if flags are not set.
func (r *RootCmd) InitClient(client *codersdk.Client) clibase.MiddlewareFunc {
if client == nil {
panic("client is nil")
}
if r == nil {
panic("root is nil")
}
return func(next clibase.HandlerFunc) clibase.HandlerFunc {
return func(inv *clibase.Invocation) error {
conf := r.createConfig()
var err error
if r.clientURL == nil || r.clientURL.String() == "" {
rawURL, err := conf.URL().Read()
// If the configuration files are absent, the user is logged out
if os.IsNotExist(err) {
return (errUnauthenticated)
}
if err != nil {
return err
}
r.clientURL, err = url.Parse(strings.TrimSpace(rawURL))
if err != nil {
return err
}
}
if r.token == "" {
r.token, err = conf.Session().Read()
// If the configuration files are absent, the user is logged out
if os.IsNotExist(err) {
return (errUnauthenticated)
}
if err != nil {
return err
}
}
err = r.setClient(
client, r.clientURL,
)
if err != nil {
return err
}
addTelemetryHeader(client, inv)
client.SetSessionToken(r.token)
if r.debugHTTP {
client.PlainLogger = os.Stderr
client.SetLogBodies(true)
}
client.DisableDirectConnections = r.disableDirect
// We send these requests in parallel to minimize latency.
var (
versionErr = make(chan error)
warningErr = make(chan error)
)
go func() {
versionErr <- r.checkVersions(inv, client)
close(versionErr)
}()
go func() {
warningErr <- r.checkWarnings(inv, client)
close(warningErr)
}()
if err = <-versionErr; err != nil {
// Just log the error here. We never want to fail a command
// due to a pre-run.
_, _ = fmt.Fprintf(inv.Stderr,
cliui.DefaultStyles.Warn.Render("check versions error: %s"), err)
_, _ = fmt.Fprintln(inv.Stderr)
}
if err = <-warningErr; err != nil {
// Same as above
_, _ = fmt.Fprintf(inv.Stderr,
cliui.DefaultStyles.Warn.Render("check entitlement warnings error: %s"), err)
_, _ = fmt.Fprintln(inv.Stderr)
}
return next(inv)
}
}
}
func (r *RootCmd) setClient(client *codersdk.Client, serverURL *url.URL) error {
transport := &headerTransport{
transport: http.DefaultTransport,
header: http.Header{},
}
for _, header := range r.header {
parts := strings.SplitN(header, "=", 2)
if len(parts) < 2 {
return xerrors.Errorf("split header %q had less than two parts", header)
}
transport.header.Add(parts[0], parts[1])
}
client.URL = serverURL
client.HTTPClient = &http.Client{
Transport: transport,
}
return nil
}
func (r *RootCmd) createUnauthenticatedClient(serverURL *url.URL) (*codersdk.Client, error) {
var client codersdk.Client
err := r.setClient(&client, serverURL)
return &client, err
}
// createAgentClient returns a new client from the command context.
// It works just like CreateClient, but uses the agent token and URL instead.
func (r *RootCmd) createAgentClient() (*agentsdk.Client, error) {
client := agentsdk.New(r.agentURL)
client.SetSessionToken(r.agentToken)
return client, nil
}
// CurrentOrganization returns the currently active organization for the authenticated user.
func CurrentOrganization(inv *clibase.Invocation, client *codersdk.Client) (codersdk.Organization, error) {
orgs, err := client.OrganizationsByUser(inv.Context(), codersdk.Me)
if err != nil {
return codersdk.Organization{}, nil
}
// For now, we won't use the config to set this.
// Eventually, we will support changing using "coder switch <org>"
return orgs[0], nil
}
func splitNamedWorkspace(identifier string) (owner string, workspaceName string, err error) {
parts := strings.Split(identifier, "/")
switch len(parts) {
case 1:
owner = codersdk.Me
workspaceName = parts[0]
case 2:
owner = parts[0]
workspaceName = parts[1]
default:
return "", "", xerrors.Errorf("invalid workspace name: %q", identifier)
}
return owner, workspaceName, nil
}
// namedWorkspace fetches and returns a workspace by an identifier, which may be either
// a bare name (for a workspace owned by the current user) or a "user/workspace" combination,
// where user is either a username or UUID.
func namedWorkspace(ctx context.Context, client *codersdk.Client, identifier string) (codersdk.Workspace, error) {
owner, name, err := splitNamedWorkspace(identifier)
if err != nil {
return codersdk.Workspace{}, err
}
return client.WorkspaceByOwnerAndName(ctx, owner, name, codersdk.WorkspaceOptions{})
}
// createConfig consumes the global configuration flag to produce a config root.
func (r *RootCmd) createConfig() config.Root {
return config.Root(r.globalConfig)
}
// isTTY returns whether the passed reader is a TTY or not.
func isTTY(inv *clibase.Invocation) bool {
// If the `--force-tty` command is available, and set,
// assume we're in a tty. This is primarily for cases on Windows
// where we may not be able to reliably detect this automatically (ie, tests)
forceTty, err := inv.ParsedFlags().GetBool(varForceTty)
if forceTty && err == nil {
return true
}
file, ok := inv.Stdin.(*os.File)
if !ok {
return false
}
return isatty.IsTerminal(file.Fd())
}
// isTTYOut returns whether the passed reader is a TTY or not.
func isTTYOut(inv *clibase.Invocation) bool {
return isTTYWriter(inv, inv.Stdout)
}
// isTTYErr returns whether the passed reader is a TTY or not.
func isTTYErr(inv *clibase.Invocation) bool {
return isTTYWriter(inv, inv.Stderr)
}
func isTTYWriter(inv *clibase.Invocation, writer io.Writer) bool {
// If the `--force-tty` command is available, and set,
// assume we're in a tty. This is primarily for cases on Windows
// where we may not be able to reliably detect this automatically (ie, tests)
forceTty, err := inv.ParsedFlags().GetBool(varForceTty)
if forceTty && err == nil {
return true
}
file, ok := writer.(*os.File)
if !ok {
return false
}
return isatty.IsTerminal(file.Fd())
}
// example represents a standard example for command usage, to be used
// with formatExamples.
type example struct {
Description string
Command string
}
// formatExamples formats the examples as width wrapped bulletpoint
// descriptions with the command underneath.
func formatExamples(examples ...example) string {
var sb strings.Builder
padStyle := cliui.DefaultStyles.Wrap.Copy().PaddingLeft(4)
for i, e := range examples {
if len(e.Description) > 0 {
wordwrap.WrapString(e.Description, 80)
_, _ = sb.WriteString(
" - " + padStyle.Render(e.Description + ":")[4:] + "\n\n ",
)
}
// We add 1 space here because `cliui.DefaultStyles.Code` adds an extra
// space. This makes the code block align at an even 2 or 6
// spaces for symmetry.
_, _ = sb.WriteString(" " + cliui.DefaultStyles.Code.Render(fmt.Sprintf("$ %s", e.Command)))
if i < len(examples)-1 {
_, _ = sb.WriteString("\n\n")
}
}
return sb.String()
}
func (r *RootCmd) checkVersions(i *clibase.Invocation, client *codersdk.Client) error {
if r.noVersionCheck {
return nil
}
ctx, cancel := context.WithTimeout(i.Context(), 10*time.Second)
defer cancel()
clientVersion := buildinfo.Version()
info, err := client.BuildInfo(ctx)
// Avoid printing errors that are connection-related.
if isConnectionError(err) {
return nil
}
if err != nil {
return xerrors.Errorf("build info: %w", err)
}
fmtWarningText := `version mismatch: client %s, server %s
`
// Our installation script doesn't work on Windows, so instead we direct the user
// to the GitHub release page to download the latest installer.
if runtime.GOOS == "windows" {
fmtWarningText += `download the server version from: https://github.com/coder/coder/releases/v%s`
} else {
fmtWarningText += `download the server version with: 'curl -L https://coder.com/install.sh | sh -s -- --version %s'`
}
if !buildinfo.VersionsMatch(clientVersion, info.Version) {
warn := cliui.DefaultStyles.Warn.Copy().Align(lipgloss.Left)
_, _ = fmt.Fprintf(i.Stderr, warn.Render(fmtWarningText), clientVersion, info.Version, strings.TrimPrefix(info.CanonicalVersion(), "v"))
_, _ = fmt.Fprintln(i.Stderr)
}
return nil
}
func (r *RootCmd) checkWarnings(i *clibase.Invocation, client *codersdk.Client) error {
if r.noFeatureWarning {
return nil
}
ctx, cancel := context.WithTimeout(i.Context(), 10*time.Second)
defer cancel()
entitlements, err := client.Entitlements(ctx)
if err == nil {
for _, w := range entitlements.Warnings {
_, _ = fmt.Fprintln(i.Stderr, cliui.DefaultStyles.Warn.Render(w))
}
}
return nil
}
type headerTransport struct {
transport http.RoundTripper
header http.Header
}
func (h *headerTransport) Header() http.Header {
return h.header.Clone()
}
func (h *headerTransport) RoundTrip(req *http.Request) (*http.Response, error) {
for k, v := range h.header {
for _, vv := range v {
req.Header.Add(k, vv)
}
}
return h.transport.RoundTrip(req)
}
// DumpHandler provides a custom SIGQUIT and SIGTRAP handler that dumps the
// stacktrace of all goroutines to stderr and a well-known file in the home
// directory. This is useful for debugging deadlock issues that may occur in
// production in workspaces, since the default Go runtime will only dump to
// stderr (which is often difficult/impossible to read in a workspace).
//
// SIGQUITs will still cause the program to exit (similarly to the default Go
// runtime behavior).
//
// A SIGQUIT handler will not be registered if GOTRACEBACK=crash.
//
// On Windows this immediately returns.
func DumpHandler(ctx context.Context) {
if runtime.GOOS == "windows" {
// free up the goroutine since it'll be permanently blocked anyways
return
}
listenSignals := []os.Signal{syscall.SIGTRAP}
if os.Getenv("GOTRACEBACK") != "crash" {
listenSignals = append(listenSignals, syscall.SIGQUIT)
}
sigs := make(chan os.Signal, 1)
signal.Notify(sigs, listenSignals...)
defer signal.Stop(sigs)
for {
sigStr := ""
select {
case <-ctx.Done():
return
case sig := <-sigs:
switch sig {
case syscall.SIGQUIT:
sigStr = "SIGQUIT"
case syscall.SIGTRAP:
sigStr = "SIGTRAP"
}
}
// Start with a 1MB buffer and keep doubling it until we can fit the
// entire stacktrace, stopping early once we reach 64MB.
buf := make([]byte, 1_000_000)
stacklen := 0
for {
stacklen = runtime.Stack(buf, true)
if stacklen < len(buf) {
break
}
if 2*len(buf) > 64_000_000 {
// Write a message to the end of the buffer saying that it was
// truncated.
const truncatedMsg = "\n\n\nstack trace truncated due to size\n"
copy(buf[len(buf)-len(truncatedMsg):], truncatedMsg)
break
}
buf = make([]byte, 2*len(buf))
}
_, _ = fmt.Fprintf(os.Stderr, "%s:\n%s\n", sigStr, buf[:stacklen])
// Write to a well-known file.
dir, err := os.UserHomeDir()
if err != nil {
dir = os.TempDir()
}
fpath := filepath.Join(dir, fmt.Sprintf("coder-agent-%s.dump", time.Now().Format("2006-01-02T15:04:05.000Z")))
_, _ = fmt.Fprintf(os.Stderr, "writing dump to %q\n", fpath)
f, err := os.Create(fpath)
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "failed to open dump file: %v\n", err.Error())
goto done
}
_, err = f.Write(buf[:stacklen])
_ = f.Close()
if err != nil {
_, _ = fmt.Fprintf(os.Stderr, "failed to write dump file: %v\n", err.Error())
goto done
}
done:
if sigStr == "SIGQUIT" {
//nolint:revive
os.Exit(1)
}
}
}
// IiConnectionErr is a convenience function for checking if the source of an
// error is due to a 'connection refused', 'no such host', etc.
func isConnectionError(err error) bool {
var (
// E.g. no such host
dnsErr *net.DNSError
// Eg. connection refused
opErr *net.OpError
)
return xerrors.As(err, &dnsErr) || xerrors.As(err, &opErr)
}
type prettyErrorFormatter struct {
w io.Writer
}
func (p *prettyErrorFormatter) format(err error) {
errTail := errors.Unwrap(err)
//nolint:errorlint
if _, ok := err.(*clibase.RunCommandError); ok && errTail != nil {
// Avoid extra nesting.
p.format(errTail)
return
}
var headErr string
if errTail != nil {
headErr = strings.TrimSuffix(err.Error(), ": "+errTail.Error())
} else {
headErr = err.Error()
}
var msg string
var sdkError *codersdk.Error
if errors.As(err, &sdkError) {
// We don't want to repeat the same error message twice, so we
// only show the SDK error on the top of the stack.
msg = sdkError.Message
if sdkError.Helper != "" {
msg = msg + "\n" + sdkError.Helper
}
// The SDK error is usually good enough, and we don't want to overwhelm
// the user with output.
errTail = nil
} else {
msg = headErr
}
headStyle := lipgloss.NewStyle().Foreground(lipgloss.Color("#D16644"))
p.printf(
headStyle,
"%s",
msg,
)
tailStyle := headStyle.Copy().Foreground(lipgloss.Color("#969696"))
if errTail != nil {
p.printf(headStyle, ": ")
// Grey out the less important, deep errors.
p.printf(tailStyle, "%s", errTail.Error())
}
p.printf(tailStyle, "\n")
}
func (p *prettyErrorFormatter) printf(style lipgloss.Style, format string, a ...interface{}) {
s := style.Render(fmt.Sprintf(format, a...))
_, _ = p.w.Write(
[]byte(
s,
),
)
}