containerd/cmd/gen-manpages/main.go
Eli Uriegas 036db34f37
build: Fix manpage generation
Seems to be that docs/man/ctr.1.md and docs/man/containerd.1.md were
removed in #3637 and were not updated correctly in the Makefile, leading
to build failures like:

    + make man

    make: *** No rule to make target `man/ctr.1', needed by `man'.  Stop.

Changes the gen-manpages command to be specific on which manpages are to
be generated.

Signed-off-by: Eli Uriegas <eli.uriegas@docker.com>
2019-10-08 18:22:23 +00:00

64 lines
1.5 KiB
Go

/*
Copyright The containerd Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package main
import (
"flag"
"fmt"
"io/ioutil"
"os"
"path/filepath"
"github.com/containerd/containerd/cmd/containerd/command"
"github.com/containerd/containerd/cmd/ctr/app"
"github.com/urfave/cli"
)
func main() {
if err := run(); err != nil {
fmt.Fprint(os.Stderr, err)
os.Exit(1)
}
}
func run() error {
flag.Parse()
apps := map[string]*cli.App{
"containerd": command.App(),
"ctr": app.New(),
}
name := flag.Arg(0)
dir := flag.Arg(1)
app, ok := apps[name]
if !ok {
return fmt.Errorf("Invalid application '%s'", name)
}
// clear out the usage as we use banners that do not display in man pages
app.Usage = ""
data, err := app.ToMan()
if err != nil {
return err
}
if _, err := os.Stat(dir); os.IsNotExist(err) {
os.Mkdir(dir, os.ModePerm)
}
if err := ioutil.WriteFile(filepath.Join(dir, fmt.Sprintf("%s.1", name)), []byte(data), 0644); err != nil {
return err
}
return nil
}