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cmd/rcd: Fix command docs to include command specific prefix (#6675)

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This change addresses two issues with commands that re-used
flags from common packages:

1) cobra.Command definitions did not include the command specific
   prefix in doc strings.
2) Command specific flag prefixes were added after generating
   command doc strings.
This commit is contained in:
Zach Kipp 2023-01-10 21:05:44 -08:00 committed by Nick Craig-Wood
parent 23579e3b99
commit 0df7466d2b
12 changed files with 159 additions and 44 deletions
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2
cmd/help.go
View File

@ -13,7 +13,6 @@ import (
"github.com/rclone/rclone/fs/config/configflags"
"github.com/rclone/rclone/fs/filter/filterflags"
"github.com/rclone/rclone/fs/log/logflags"
"github.com/rclone/rclone/fs/rc/rcflags"
"github.com/rclone/rclone/lib/atexit"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
@ -174,7 +173,6 @@ func setupRootCommand(rootCmd *cobra.Command) {
// Add global flags
configflags.AddFlags(ci, pflag.CommandLine)
filterflags.AddFlags(pflag.CommandLine)
rcflags.AddFlags(pflag.CommandLine)
logflags.AddFlags(pflag.CommandLine)
Root.Run = runRoot

6
cmd/rcd/rcd.go
View File

@ -15,7 +15,11 @@ import (
"github.com/spf13/cobra"
)
// flagPrefix is the prefix used to uniquely identify command line flags.
const flagPrefix = "rc-"
func init() {
rcflags.AddFlags(cmd.Root.Flags(), flagPrefix)
cmd.Root.AddCommand(commandDefinition)
}
@ -32,7 +36,7 @@ for GET requests on the URL passed in. It will also open the URL in
the browser when rclone is run.
See the [rc documentation](/rc/) for more info on the rc flags.
` + libhttp.Help + libhttp.TemplateHelp + libhttp.AuthHelp,
` + libhttp.Help(flagPrefix) + libhttp.TemplateHelp(flagPrefix) + libhttp.AuthHelp(flagPrefix),
Annotations: map[string]string{
"versionIntroduced": "v1.45",
},

12
cmd/serve/http/http.go
View File

@ -44,11 +44,15 @@ var DefaultOpt = Options{
// Opt is options set by command line flags
var Opt = DefaultOpt
// flagPrefix is the prefix used to uniquely identify command line flags.
// It is intentionally empty for this package.
const flagPrefix = ""
func init() {
flagSet := Command.Flags()
libhttp.AddAuthFlagsPrefix(flagSet, "", &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, "", &Opt.HTTP)
libhttp.AddTemplateFlagsPrefix(flagSet, "", &Opt.Template)
libhttp.AddAuthFlagsPrefix(flagSet, flagPrefix, &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, flagPrefix, &Opt.HTTP)
libhttp.AddTemplateFlagsPrefix(flagSet, flagPrefix, &Opt.Template)
vfsflags.AddFlags(flagSet)
proxyflags.AddFlags(flagSet)
}
@ -68,7 +72,7 @@ The server will log errors. Use ` + "`-v`" + ` to see access logs.
` + "`--bwlimit`" + ` will be respected for file transfers. Use ` + "`--stats`" + ` to
control the stats printing.
` + libhttp.Help + libhttp.TemplateHelp + libhttp.AuthHelp + vfs.Help + proxy.Help,
` + libhttp.Help(flagPrefix) + libhttp.TemplateHelp(flagPrefix) + libhttp.AuthHelp(flagPrefix) + vfs.Help + proxy.Help,
Annotations: map[string]string{
"versionIntroduced": "v1.39",
},

10
cmd/serve/restic/restic.go
View File

@ -47,10 +47,14 @@ var DefaultOpt = Options{
// Opt is options set by command line flags
var Opt = DefaultOpt
// flagPrefix is the prefix used to uniquely identify command line flags.
// It is intentionally empty for this package.
const flagPrefix = ""
func init() {
flagSet := Command.Flags()
libhttp.AddAuthFlagsPrefix(flagSet, "", &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, "", &Opt.HTTP)
libhttp.AddAuthFlagsPrefix(flagSet, flagPrefix, &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, flagPrefix, &Opt.HTTP)
flags.BoolVarP(flagSet, &Opt.Stdio, "stdio", "", false, "Run an HTTP2 server on stdin/stdout")
flags.BoolVarP(flagSet, &Opt.AppendOnly, "append-only", "", false, "Disallow deletion of repository data")
flags.BoolVarP(flagSet, &Opt.PrivateRepos, "private-repos", "", false, "Users can only access their private repo")
@ -142,7 +146,7 @@ these **must** end with /. Eg
The` + "`--private-repos`" + ` flag can be used to limit users to repositories starting
with a path of ` + "`/<username>/`" + `.
` + libhttp.Help + libhttp.AuthHelp,
` + libhttp.Help(flagPrefix) + libhttp.AuthHelp(flagPrefix),
Annotations: map[string]string{
"versionIntroduced": "v1.40",
},

10
cmd/serve/webdav/webdav.go
View File

@ -48,10 +48,14 @@ var DefaultOpt = Options{
// Opt is options set by command line flags
var Opt = DefaultOpt
// flagPrefix is the prefix used to uniquely identify command line flags.
// It is intentionally empty for this package.
const flagPrefix = ""
func init() {
flagSet := Command.Flags()
libhttp.AddAuthFlagsPrefix(flagSet, "", &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, "", &Opt.HTTP)
libhttp.AddAuthFlagsPrefix(flagSet, flagPrefix, &Opt.Auth)
libhttp.AddHTTPFlagsPrefix(flagSet, flagPrefix, &Opt.HTTP)
libhttp.AddTemplateFlagsPrefix(flagSet, "", &Opt.Template)
vfsflags.AddFlags(flagSet)
proxyflags.AddFlags(flagSet)
@ -103,7 +107,7 @@ Create a new DWORD BasicAuthLevel with value 2.
https://learn.microsoft.com/en-us/office/troubleshoot/powerpoint/office-opens-blank-from-sharepoint
` + libhttp.Help + libhttp.TemplateHelp + libhttp.AuthHelp + vfs.Help + proxy.Help,
` + libhttp.Help(flagPrefix) + libhttp.TemplateHelp(flagPrefix) + libhttp.AuthHelp(flagPrefix) + vfs.Help + proxy.Help,
Annotations: map[string]string{
"versionIntroduced": "v1.39",
},

8
fs/rc/rcflags/rcflags.go
View File

@ -13,7 +13,7 @@ var (
)
// AddFlags adds the remote control flags to the flagSet
func AddFlags(flagSet *pflag.FlagSet) {
func AddFlags(flagSet *pflag.FlagSet, commonFlagPrefix string) {
rc.AddOption("rc", &Opt)
flags.BoolVarP(flagSet, &Opt.Enabled, "rc", "", false, "Enable the remote control server")
flags.StringVarP(flagSet, &Opt.Files, "rc-files", "", "", "Path to local files to serve on the HTTP server")
@ -28,7 +28,7 @@ func AddFlags(flagSet *pflag.FlagSet) {
flags.BoolVarP(flagSet, &Opt.EnableMetrics, "rc-enable-metrics", "", false, "Enable prometheus metrics on /metrics")
flags.DurationVarP(flagSet, &Opt.JobExpireDuration, "rc-job-expire-duration", "", Opt.JobExpireDuration, "Expire finished async jobs older than this value")
flags.DurationVarP(flagSet, &Opt.JobExpireInterval, "rc-job-expire-interval", "", Opt.JobExpireInterval, "Interval to check for expired async jobs")
Opt.HTTP.AddFlagsPrefix(flagSet, "rc-")
Opt.Auth.AddFlagsPrefix(flagSet, "rc-")
Opt.Template.AddFlagsPrefix(flagSet, "rc-")
Opt.HTTP.AddFlagsPrefix(flagSet, commonFlagPrefix)
Opt.Auth.AddFlagsPrefix(flagSet, commonFlagPrefix)
Opt.Template.AddFlagsPrefix(flagSet, commonFlagPrefix)
}

34
lib/http/auth.go
View File

@ -1,20 +1,25 @@
package http
import (
"bytes"
"html/template"
"log"
"github.com/rclone/rclone/fs/config/flags"
"github.com/spf13/pflag"
)
// AuthHelp contains text describing the http authentication to add to the command help.
var AuthHelp = `
// AuthHelp returns text describing the http authentication to add to the command help.
func AuthHelp(prefix string) string {
help := `
#### Authentication
By default this will serve files without needing a login.
You can either use an htpasswd file which can take lots of users, or
set a single username and password with the ` + "`--user` and `--pass`" + ` flags.
set a single username and password with the ` + "`--{{ .Prefix }}user` and `--{{ .Prefix }}pass`" + ` flags.
Use ` + "`--htpasswd /path/to/htpasswd`" + ` to provide an htpasswd file. This is
Use ` + "`--{{ .Prefix }}htpasswd /path/to/htpasswd`" + ` to provide an htpasswd file. This is
in standard apache format and supports MD5, SHA1 and BCrypt for basic
authentication. Bcrypt is recommended.
@ -26,10 +31,27 @@ To create an htpasswd file:
The password file can be updated while rclone is running.
Use ` + "`--realm`" + ` to set the authentication realm.
Use ` + "`--{{ .Prefix }}realm`" + ` to set the authentication realm.
Use ` + "`--salt`" + ` to change the password hashing salt from the default.
Use ` + "`--{{ .Prefix }}salt`" + ` to change the password hashing salt from the default.
`
tmpl, err := template.New("auth help").Parse(help)
if err != nil {
log.Fatal("Fatal error parsing template", err)
}
data := struct {
Prefix string
}{
Prefix: prefix,
}
buf := &bytes.Buffer{}
err = tmpl.Execute(buf, data)
if err != nil {
log.Fatal("Fatal error executing template", err)
}
return buf.String()
}
// CustomAuthFn if used will be used to authenticate user, pass. If an error
// is returned then the user is not authenticated.

15
lib/http/auth_test.go Normal file
View File

@ -0,0 +1,15 @@
package http
import (
"strings"
"testing"
)
func TestHelpPrefixAuth(t *testing.T) {
// This test assumes template variables are placed correctly.
const testPrefix = "server-help-test"
helpMessage := AuthHelp(testPrefix)
if !strings.Contains(helpMessage, testPrefix) {
t.Fatal("flag prefix not found")
}
}

55
lib/http/server.go
View File

@ -2,6 +2,7 @@
package http
import (
"bytes"
"context"
"crypto/tls"
"crypto/x509"
@ -23,56 +24,74 @@ import (
"github.com/spf13/pflag"
)
// Help contains text describing the http server to add to the command
// Help returns text describing the http server to add to the command
// help.
var Help = `
func Help(prefix string) string {
help := `
### Server options
Use ` + "`--addr`" + ` to specify which IP address and port the server should
listen on, eg ` + "`--addr 1.2.3.4:8000` or `--addr :8080`" + ` to listen to all
Use ` + "`--{{ .Prefix }}addr`" + ` to specify which IP address and port the server should
listen on, eg ` + "`--{{ .Prefix }}addr 1.2.3.4:8000` or `--{{ .Prefix }}addr :8080`" + ` to listen to all
IPs. By default it only listens on localhost. You can use port
:0 to let the OS choose an available port.
If you set ` + "`--addr`" + ` to listen on a public or LAN accessible IP address
If you set ` + "`--{{ .Prefix }}addr`" + ` to listen on a public or LAN accessible IP address
then using Authentication is advised - see the next section for info.
You can use a unix socket by setting the url to ` + "`unix:///path/to/socket`" + `
or just by using an absolute path name. Note that unix sockets bypass the
authentication - this is expected to be done with file system permissions.
` + "`--addr`" + ` may be repeated to listen on multiple IPs/ports/sockets.
` + "`--{{ .Prefix }}addr`" + ` may be repeated to listen on multiple IPs/ports/sockets.
` + "`--server-read-timeout` and `--server-write-timeout`" + ` can be used to
` + "`--{{ .Prefix }}server-read-timeout` and `--{{ .Prefix }}server-write-timeout`" + ` can be used to
control the timeouts on the server. Note that this is the total time
for a transfer.
` + "`--max-header-bytes`" + ` controls the maximum number of bytes the server will
` + "`--{{ .Prefix }}max-header-bytes`" + ` controls the maximum number of bytes the server will
accept in the HTTP header.
` + "`--baseurl`" + ` controls the URL prefix that rclone serves from. By default
rclone will serve from the root. If you used ` + "`--baseurl \"/rclone\"`" + ` then
` + "`--{{ .Prefix }}baseurl`" + ` controls the URL prefix that rclone serves from. By default
rclone will serve from the root. If you used ` + "`--{{ .Prefix }}baseurl \"/rclone\"`" + ` then
rclone would serve from a URL starting with "/rclone/". This is
useful if you wish to proxy rclone serve. Rclone automatically
inserts leading and trailing "/" on ` + "`--baseurl`" + `, so ` + "`--baseurl \"rclone\"`" + `,
` + "`--baseurl \"/rclone\"` and `--baseurl \"/rclone/\"`" + ` are all treated
inserts leading and trailing "/" on ` + "`--{{ .Prefix }}baseurl`" + `, so ` + "`--{{ .Prefix }}baseurl \"rclone\"`" + `,
` + "`--{{ .Prefix }}baseurl \"/rclone\"` and `--{{ .Prefix }}baseurl \"/rclone/\"`" + ` are all treated
identically.
#### TLS (SSL)
By default this will serve over http. If you want you can serve over
https. You will need to supply the ` + "`--cert` and `--key`" + ` flags.
https. You will need to supply the ` + "`--{{ .Prefix }}cert` and `--{{ .Prefix }}key`" + ` flags.
If you wish to do client side certificate validation then you will need to
supply ` + "`--client-ca`" + ` also.
supply ` + "`--{{ .Prefix }}client-ca`" + ` also.
` + "`--cert`" + ` should be a either a PEM encoded certificate or a concatenation
of that with the CA certificate. ` + "`--key`" + ` should be the PEM encoded
private key and ` + "`--client-ca`" + ` should be the PEM encoded client
` + "`--{{ .Prefix }}cert`" + ` should be a either a PEM encoded certificate or a concatenation
of that with the CA certificate. ` + "`--k{{ .Prefix }}ey`" + ` should be the PEM encoded
private key and ` + "`--{{ .Prefix }}client-ca`" + ` should be the PEM encoded client
certificate authority certificate.
--min-tls-version is minimum TLS version that is acceptable. Valid
--{{ .Prefix }}min-tls-version is minimum TLS version that is acceptable. Valid
values are "tls1.0", "tls1.1", "tls1.2" and "tls1.3" (default
"tls1.0").
`
tmpl, err := template.New("server help").Parse(help)
if err != nil {
log.Fatal("Fatal error parsing template", err)
}
data := struct {
Prefix string
}{
Prefix: prefix,
}
buf := &bytes.Buffer{}
err = tmpl.Execute(buf, data)
if err != nil {
log.Fatal("Fatal error executing template", err)
}
return buf.String()
}
// Middleware function signature required by chi.Router.Use()
type Middleware func(http.Handler) http.Handler

9
lib/http/server_test.go
View File

@ -442,3 +442,12 @@ func TestNewServerTLS(t *testing.T) {
})
}
}
func TestHelpPrefixServer(t *testing.T) {
// This test assumes template variables are placed correctly.
const testPrefix = "server-help-test"
helpMessage := Help(testPrefix)
if !strings.Contains(helpMessage, testPrefix) {
t.Fatal("flag prefix not found")
}
}

27
lib/http/template.go
View File

@ -1,8 +1,10 @@
package http
import (
"bytes"
"embed"
"html/template"
"log"
"os"
"time"
@ -11,11 +13,12 @@ import (
"github.com/rclone/rclone/fs/config/flags"
)
// TemplateHelp describes how to use a custom template
var TemplateHelp = `
// TemplateHelp returns a string that describes how to use a custom template
func TemplateHelp(prefix string) string {
help := `
#### Template
` + "`--template`" + ` allows a user to specify a custom markup template for HTTP
` + "`--{{ .Prefix }}template`" + ` allows a user to specify a custom markup template for HTTP
and WebDAV serve functions. The server exports the following markup
to be used within the template to server pages:
@ -39,6 +42,24 @@ to be used within the template to server pages:
|-- .ModTime | The UTC timestamp of an entry. |
`
tmpl, err := template.New("template help").Parse(help)
if err != nil {
log.Fatal("Fatal error parsing template", err)
}
data := struct {
Prefix string
}{
Prefix: prefix,
}
buf := &bytes.Buffer{}
err = tmpl.Execute(buf, data)
if err != nil {
log.Fatal("Fatal error executing template", err)
}
return buf.String()
}
// TemplateConfig for the templating functionality
type TemplateConfig struct {
Path string

15
lib/http/template_test.go Normal file
View File

@ -0,0 +1,15 @@
package http
import (
"strings"
"testing"
)
func TestHelpPrefixTemplate(t *testing.T) {
// This test assumes template variables are placed correctly.
const testPrefix = "template-help-test"
helpMessage := TemplateHelp(testPrefix)
if !strings.Contains(helpMessage, testPrefix) {
t.Fatal("flag prefix not found")
}
}