github.com/joshdk/godel@v0.0.0-20170529232908-862138a45aee/apps/gonform/config/config.go (about)

     1  // Copyright 2016 Palantir Technologies, Inc.
     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 config
    16  
    17  import (
    18  	"encoding/json"
    19  	"io/ioutil"
    20  
    21  	"github.com/palantir/pkg/matcher"
    22  	"github.com/pkg/errors"
    23  	"gopkg.in/yaml.v2"
    24  
    25  	"github.com/palantir/godel/apps/gonform/params"
    26  )
    27  
    28  type Gonform struct {
    29  	// Formatters specifies the configuration used by the formatters. The key is the name of the formatter and the
    30  	// value is the custom configuration for that formatter.
    31  	Formatters map[string]Formatter `yaml:"formatters" json:"formatters"`
    32  
    33  	// Exclude specifies the files that should be excluded from formatting.
    34  	Exclude matcher.NamesPathsCfg `yaml:"exclude" json:"exclude"`
    35  }
    36  
    37  type Formatter struct {
    38  	// Args specifies the command-line arguments that are provided to the formatter.
    39  	Args []string `yaml:"args" json:"args"`
    40  }
    41  
    42  func (r *Gonform) ToParams() params.Formatters {
    43  	m := make(map[string]params.Formatter, len(r.Formatters))
    44  	for k, v := range r.Formatters {
    45  		m[k] = v.ToParams()
    46  	}
    47  	return params.Formatters{
    48  		Formatters: m,
    49  		Exclude:    r.Exclude.Matcher(),
    50  	}
    51  }
    52  
    53  func (r *Formatter) ToParams() params.Formatter {
    54  	return params.Formatter{
    55  		Args: r.Args,
    56  	}
    57  }
    58  
    59  func Load(cfgPath, jsonContent string) (params.Formatters, error) {
    60  	var yml []byte
    61  	if cfgPath != "" {
    62  		var err error
    63  		yml, err = ioutil.ReadFile(cfgPath)
    64  		if err != nil {
    65  			return params.Formatters{}, errors.Wrapf(err, "failed to read file %s", cfgPath)
    66  		}
    67  	}
    68  	cfg, err := LoadRawConfig(string(yml), jsonContent)
    69  	if err != nil {
    70  		return params.Formatters{}, err
    71  	}
    72  	return cfg.ToParams(), nil
    73  }
    74  
    75  func LoadRawConfig(ymlContent, jsonContent string) (Gonform, error) {
    76  	cfg := Gonform{}
    77  	if ymlContent != "" {
    78  		if err := yaml.Unmarshal([]byte(ymlContent), &cfg); err != nil {
    79  			return Gonform{}, errors.Wrapf(err, "failed to unmarshal YML %s", ymlContent)
    80  		}
    81  	}
    82  	if jsonContent != "" {
    83  		jsonCfg := Gonform{}
    84  		if err := json.Unmarshal([]byte(jsonContent), &jsonCfg); err != nil {
    85  			return Gonform{}, err
    86  		}
    87  		cfg.Exclude.Add(jsonCfg.Exclude)
    88  	}
    89  	return cfg, nil
    90  }