github.com/jdhenke/godel@v0.0.0-20161213181855-abeb3861bf0d/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  	"path"
    21  
    22  	"github.com/palantir/pkg/matcher"
    23  	"github.com/palantir/pkg/specdir"
    24  	"github.com/pkg/errors"
    25  	"gopkg.in/yaml.v2"
    26  
    27  	"github.com/palantir/godel/layout"
    28  )
    29  
    30  const (
    31  	ExcludeYML = "exclude.yml"
    32  )
    33  
    34  type Exclude struct {
    35  	// Exclude specifies the files and directories that should be excluded from gödel operations. This parameter is
    36  	// also passed to subtasks to augment their notion of included and excluded files and directories.
    37  	Exclude matcher.NamesPathsCfg `json:"exclude"`
    38  }
    39  
    40  func LoadFromFile(cfgPath string) (matcher.NamesPathsCfg, error) {
    41  	fileBytes, err := ioutil.ReadFile(cfgPath)
    42  	if err != nil {
    43  		return matcher.NamesPathsCfg{}, errors.Wrapf(err, "Failed to read file %s", cfgPath)
    44  	}
    45  	return LoadFromYML(string(fileBytes))
    46  }
    47  
    48  func LoadFromYML(ymlContent string) (matcher.NamesPathsCfg, error) {
    49  	excludeCfg := matcher.NamesPathsCfg{}
    50  	if err := yaml.Unmarshal([]byte(ymlContent), &excludeCfg); err != nil {
    51  		return matcher.NamesPathsCfg{}, errors.Wrapf(err, "Failed to unmarshal YML %s", ymlContent)
    52  	}
    53  	return excludeCfg, nil
    54  }
    55  
    56  func ReadExcludeJSONFromYML(cfgPath string) ([]byte, error) {
    57  	excludeCfg, err := LoadFromFile(cfgPath)
    58  	if err != nil {
    59  		return nil, err
    60  	}
    61  	return json.Marshal(Exclude{
    62  		Exclude: excludeCfg,
    63  	})
    64  }
    65  
    66  func GetCfgDirPath(cfgDirPath, wrapperScriptPath string) (string, error) {
    67  	if cfgDirPath != "" {
    68  		return cfgDirPath, nil
    69  	}
    70  	if wrapperScriptPath == "" {
    71  		return "", nil
    72  	}
    73  	wrapper, err := specdir.New(path.Dir(wrapperScriptPath), layout.WrapperSpec(), nil, specdir.Validate)
    74  	if err != nil {
    75  		return "", err
    76  	}
    77  	return wrapper.Path(layout.WrapperConfigDir), nil
    78  }