Files
seaweedfs/weed/shell/command_cluster_raft_add.go
T
bac2196d65 shell: return flag parse errors from every command (#12618)
* shell: return flag parse errors from every command

48 commands returned nil when their flags failed to parse, so a mistyped
flag printed the flag error but the command still counted as a success:
a piped weed shell run exited 0, the master maintenance loop logged no
error, and admin script jobs reported the line as done.

Return the parse error as s3.bucket.create (#12544) and the other shell
commands already do. TestCommandsReturnFlagParseErrors runs every
registered command with an unknown flag and fails for the 48 on master.

Signed-off-by: anant <170962632+antcybersec@users.noreply.github.com>

* shell: don't report -h as a failure

With the parse errors returned, -h on those commands now returns
flag.ErrHelp, so the shell printed "error: flag: help requested" and a
piped run exited 1. The flag package has already printed the usage, so
processEachCmd now treats flag.ErrHelp as success for every command.

Signed-off-by: anant <170962632+antcybersec@users.noreply.github.com>

* shell: keep the -h test beside the flag parse test

TestProcessEachCmdTreatsHelpAsSuccess covers the same change as
TestCommandsReturnFlagParseErrors, so it lives in the same new file and
shell_liner_test.go stays as it was.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Signed-off-by: anant <170962632+antcybersec@users.noreply.github.com>
Co-authored-by: anant <170962632+antcybersec@users.noreply.github.com>
Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-13 12:19:44 -08:00

65 lines
1.5 KiB
Go

package shell
import (
"context"
"flag"
"fmt"
"io"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
)
func init() {
Commands = append(Commands, &commandRaftServerAdd{})
}
type commandRaftServerAdd struct {
}
func (c *commandRaftServerAdd) Name() string {
return "cluster.raft.add"
}
func (c *commandRaftServerAdd) Help() string {
return `add a server to the raft cluster
Example:
cluster.raft.add -id <server_name> -address <server_host:port> -voter
`
}
func (c *commandRaftServerAdd) HasTag(CommandTag) bool {
return false
}
func (c *commandRaftServerAdd) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
raftServerAddCommand := flag.NewFlagSet(c.Name(), flag.ContinueOnError)
serverId := raftServerAddCommand.String("id", "", "server id")
serverAddress := raftServerAddCommand.String("address", "", "server grpc address")
serverVoter := raftServerAddCommand.Bool("voter", true, "assign it a vote")
if err = raftServerAddCommand.Parse(args); err != nil {
return err
}
if *serverId == "" || *serverAddress == "" {
return fmt.Errorf("empty server id or address")
}
err = commandEnv.MasterClient.WithClient(context.Background(), false, func(client master_pb.SeaweedClient) error {
_, err := client.RaftAddServer(context.Background(), &master_pb.RaftAddServerRequest{
Id: *serverId,
Address: *serverAddress,
Voter: *serverVoter,
})
if err != nil {
return fmt.Errorf("raft add server: %w", err)
}
println("added server", *serverId)
return nil
})
return err
}