50da673592
The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
69 lines
1.6 KiB
Go
69 lines
1.6 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"flag"
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"fmt"
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"os"
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"path/filepath"
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"strings"
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"github.com/containerd/containerd/cmd/containerd/command"
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"github.com/containerd/containerd/cmd/ctr/app"
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"github.com/urfave/cli"
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)
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func main() {
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if err := run(); err != nil {
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fmt.Fprint(os.Stderr, err)
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os.Exit(1)
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}
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}
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func run() error {
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flag.Parse()
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apps := map[string]*cli.App{
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"containerd": command.App(),
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"ctr": app.New(),
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}
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dir := flag.Arg(1)
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parts := strings.SplitN(flag.Arg(0), ".", 2)
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if len(parts) != 2 {
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return fmt.Errorf("invalid name '%s': name does not contain man page section", flag.Arg(0))
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}
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name, section := parts[0], parts[1]
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appName, ok := apps[name]
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if !ok {
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return fmt.Errorf("invalid application '%s'", name)
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}
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// clear out the usage as we use banners that do not display in man pages
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appName.Usage = ""
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data, err := appName.ToMan()
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if err != nil {
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return err
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}
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_ = os.MkdirAll(dir, os.ModePerm)
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if err := os.WriteFile(filepath.Join(dir, fmt.Sprintf("%s.%s", name, section)), []byte(data), 0644); err != nil {
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return err
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}
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return nil
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}
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