80655026d2
ini released v1.48.0 and deprecated the ini.AllCapsUnderscore symbol, as such, during the upgrade we migrated to using ini.SnackCase.
75 lines
1.8 KiB
Go
Vendored
75 lines
1.8 KiB
Go
Vendored
// Copyright 2019 Unknwon
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package ini
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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)
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var (
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_ dataSource = (*sourceFile)(nil)
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_ dataSource = (*sourceData)(nil)
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_ dataSource = (*sourceReadCloser)(nil)
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)
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// dataSource is an interface that returns object which can be read and closed.
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type dataSource interface {
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ReadCloser() (io.ReadCloser, error)
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}
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// sourceFile represents an object that contains content on the local file system.
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type sourceFile struct {
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name string
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}
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func (s sourceFile) ReadCloser() (_ io.ReadCloser, err error) {
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return os.Open(s.name)
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}
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// sourceData represents an object that contains content in memory.
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type sourceData struct {
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data []byte
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}
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func (s *sourceData) ReadCloser() (io.ReadCloser, error) {
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return ioutil.NopCloser(bytes.NewReader(s.data)), nil
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}
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// sourceReadCloser represents an input stream with Close method.
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type sourceReadCloser struct {
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reader io.ReadCloser
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}
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func (s *sourceReadCloser) ReadCloser() (io.ReadCloser, error) {
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return s.reader, nil
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}
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func parseDataSource(source interface{}) (dataSource, error) {
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switch s := source.(type) {
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case string:
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return sourceFile{s}, nil
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case []byte:
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return &sourceData{s}, nil
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case io.ReadCloser:
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return &sourceReadCloser{s}, nil
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default:
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return nil, fmt.Errorf("error parsing data source: unknown type %q", s)
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}
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}
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