fixall.go

Documentation: cuelang.org/go/tools/fix

     1  // Copyright 2020 CUE Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package fix
    16  
    17  import (
    18  	"os"
    19  
    20  	"cuelang.org/go/cue/ast"
    21  	"cuelang.org/go/cue/build"
    22  	"cuelang.org/go/cue/errors"
    23  )
    24  
    25  // Instances modifies all files contained in the given build instances at once.
    26  //
    27  // It also applies fix.File.
    28  func Instances(a []*build.Instance, o ...Option) errors.Error {
    29  	cwd, _ := os.Getwd()
    30  
    31  	// Collect all
    32  	p := processor{
    33  		instances: a,
    34  		cwd:       cwd,
    35  	}
    36  
    37  	p.visitAll(func(f *ast.File) { File(f, o...) })
    38  
    39  	return p.err
    40  }
    41  
    42  type processor struct {
    43  	instances []*build.Instance
    44  	cwd       string
    45  
    46  	err errors.Error
    47  }
    48  
    49  func (p *processor) visitAll(fn func(f *ast.File)) {
    50  	if p.err != nil {
    51  		return
    52  	}
    53  
    54  	done := map[*ast.File]bool{}
    55  
    56  	for _, b := range p.instances {
    57  		for _, f := range b.Files {
    58  			if done[f] {
    59  				continue
    60  			}
    61  			done[f] = true
    62  			fn(f)
    63  		}
    64  	}
    65  }
    66
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