A virtual jailed shell environment for Go apps backed by an io/fs#FS.
feat(command): add hostname returning localhost
Implements a fake hostname command that ignores all arguments and
writes "localhost\n" to stdout with exit code 0. Registered under
the coreutils registry alongside ls.
Assisted-by: Claude Opus 4.7 via Claude Code
Signed-off-by: Xe Iaso <me@xeiaso.net>
+19
+17
command/internal/hostname/hostname.go
+17
command/internal/hostname/hostname.go
···
1
+
package hostname
2
+
3
+
import (
4
+
"context"
5
+
"io"
6
+
7
+
"tangled.org/xeiaso.net/kefka/command"
8
+
)
9
+
10
+
type Impl struct{}
11
+
12
+
func (Impl) Exec(ctx context.Context, ec *command.ExecContext, args []string) error {
13
+
if ec != nil && ec.Stdout != nil {
14
+
io.WriteString(ec.Stdout, "localhost\n")
15
+
}
16
+
return nil
17
+
}
+2
command/registry/coreutils/coreutils.go
+2
command/registry/coreutils/coreutils.go
···
1
1
package coreutils
2
2
3
3
import (
4
+
"tangled.org/xeiaso.net/kefka/command/internal/hostname"
4
5
"tangled.org/xeiaso.net/kefka/command/internal/ls"
5
6
"tangled.org/xeiaso.net/kefka/command/registry"
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7
)
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8
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9
func Register(reg *registry.Impl) {
10
+
reg.Register("hostname", hostname.Impl{})
9
11
reg.Register("ls", ls.Impl{})
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12
}