/
content.go
80 lines (72 loc) · 1.76 KB
/
content.go
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// Copyright 2021 Soluble Inc
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package inventory
import (
"fmt"
"os"
"strings"
"github.com/tidwall/gjson"
"gopkg.in/yaml.v3"
)
type Content struct {
path string
Head []byte
doc map[string]string
}
func readContent(path string, buf []byte) (*Content, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
n, err := f.Read(buf)
if n != 0 && err != nil {
return nil, err
}
return &Content{
path: path,
Head: buf[0:n],
}, nil
}
func decodeJSON(buf []byte) map[string]string {
r := map[string]string{}
// gjson doesn't require valid JSON
for k, v := range gjson.ParseBytes(buf).Map() {
if v.Type == gjson.String {
r[k] = v.Str
}
}
return r
}
func decodeYAML(buf []byte) map[string]string {
var m map[string]interface{}
// truncated yaml is still mostly yaml, but we'll just ignore errors
_ = yaml.Unmarshal(buf, &m)
r := map[string]string{}
for k, v := range m {
r[k] = fmt.Sprintf("%v", v)
}
return r
}
func (c *Content) DecodeDocument() map[string]string {
if c.doc == nil {
switch {
case strings.HasSuffix(c.path, ".yaml") || strings.HasSuffix(c.path, ".yml"):
c.doc = decodeYAML(c.Head)
default:
c.doc = decodeJSON(c.Head)
}
}
return c.doc
}