github.com/aacfactory/fns@v1.2.86-0.20240310083819-80d667fc0a17/cmd/fns/initialization/base/internals.go (about)

     1  /*
     2   * Copyright 2023 Wang Min Xiang
     3   *
     4   * Licensed under the Apache License, Version 2.0 (the "License");
     5   * you may not use this file except in compliance with the License.
     6   * You may obtain a copy of the License at
     7   *
     8   * 	http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   *
    16   */
    17  
    18  package base
    19  
    20  import (
    21  	"context"
    22  	"github.com/aacfactory/errors"
    23  	"github.com/aacfactory/fns/cmd/generates/files"
    24  	"os"
    25  	"path/filepath"
    26  )
    27  
    28  func NewInternalGeneratorsFile(dir string) (f *InternalGeneratorsFile, err error) {
    29  	if !filepath.IsAbs(dir) {
    30  		dir, err = filepath.Abs(dir)
    31  		if err != nil {
    32  			err = errors.Warning("fns: new generator file failed").WithCause(err).WithMeta("dir", dir)
    33  			return
    34  		}
    35  	}
    36  	dir = filepath.ToSlash(filepath.Join(dir, "internal", "generator"))
    37  
    38  	f = &InternalGeneratorsFile{
    39  		dir:      dir,
    40  		filename: filepath.ToSlash(filepath.Join(dir, "main.go")),
    41  	}
    42  	return
    43  }
    44  
    45  type InternalGeneratorsFile struct {
    46  	filename string
    47  	dir      string
    48  }
    49  
    50  func (f *InternalGeneratorsFile) Name() (name string) {
    51  	name = f.dir
    52  	return
    53  }
    54  
    55  func (f *InternalGeneratorsFile) Write(_ context.Context) (err error) {
    56  	if !files.ExistFile(f.dir) {
    57  		mdErr := os.MkdirAll(f.dir, 0644)
    58  		if mdErr != nil {
    59  			err = errors.Warning("fns: generator file write failed").WithCause(mdErr).WithMeta("dir", f.dir)
    60  			return
    61  		}
    62  	}
    63  	const (
    64  		content = `package main
    65  
    66  import (
    67  	"context"
    68  	"fmt"
    69  	"github.com/aacfactory/fns/cmd/generates"
    70  	"os"
    71  )
    72  
    73  func main() {
    74  	cmd := generates.New()
    75  	if err := cmd.Execute(context.Background(), os.Args...); err != nil {
    76  		fmt.Println(fmt.Sprintf("%+v", err))
    77  	}
    78  }
    79  
    80  `
    81  	)
    82  	writeErr := os.WriteFile(f.filename, []byte(content), 0644)
    83  	if writeErr != nil {
    84  		err = errors.Warning("fns: generator file write failed").WithCause(writeErr).WithMeta("filename", f.filename)
    85  		return
    86  	}
    87  	return
    88  }