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plugin.go
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plugin.go
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// Copyright 2017-2019 Lei Ni (nilei81@gmail.com)
//
// 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 fileutil
import (
"io/ioutil"
"regexp"
"strings"
)
var (
appNameRegex = regexp.MustCompile(`^dragonboat-cpp-plugin-(?P<appname>.+)\.so$`)
cppFileNameRegex = regexp.MustCompile(`^dragonboat-cpp-plugin-.+\.so$`)
soFileNameRegex = regexp.MustCompile(`^dragonboat-plugin-.+\.so$`)
)
// GetAppNameFromFilename returns the app name from the filename.
func GetAppNameFromFilename(soName string) string {
results := appNameRegex.FindStringSubmatch(soName)
return results[1]
}
// GetPossibleCPPSOFiles returns a list of possible .so files found in the
// specified path.
func GetPossibleCPPSOFiles(path string) []string {
files, err := ioutil.ReadDir(path)
if err != nil {
return nil
}
result := make([]string, 0)
for _, f := range files {
fn := strings.ToLower(f.Name())
if !f.IsDir() && cppFileNameRegex.MatchString(fn) {
result = append(result, fn)
}
}
return result
}
// GetPossibleSOFiles returns a list of possible .so files.
func GetPossibleSOFiles(path string) []string {
files, err := ioutil.ReadDir(path)
if err != nil {
return nil
}
result := make([]string, 0)
for _, f := range files {
fn := strings.ToLower(f.Name())
if !f.IsDir() && soFileNameRegex.MatchString(fn) {
result = append(result, fn)
}
}
return result
}