path.go

Documentation: github.com/go-openapi/swag

     1  // Copyright 2015 go-swagger maintainers
     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 swag
    16  
    17  import (
    18  	"os"
    19  	"path/filepath"
    20  	"runtime"
    21  	"strings"
    22  )
    23  
    24  const (
    25  	// GOPATHKey represents the env key for gopath
    26  	GOPATHKey = "GOPATH"
    27  )
    28  
    29  // FindInSearchPath finds a package in a provided lists of paths
    30  func FindInSearchPath(searchPath, pkg string) string {
    31  	pathsList := filepath.SplitList(searchPath)
    32  	for _, path := range pathsList {
    33  		if evaluatedPath, err := filepath.EvalSymlinks(filepath.Join(path, "src", pkg)); err == nil {
    34  			if _, err := os.Stat(evaluatedPath); err == nil {
    35  				return evaluatedPath
    36  			}
    37  		}
    38  	}
    39  	return ""
    40  }
    41  
    42  // FindInGoSearchPath finds a package in the $GOPATH:$GOROOT
    43  func FindInGoSearchPath(pkg string) string {
    44  	return FindInSearchPath(FullGoSearchPath(), pkg)
    45  }
    46  
    47  // FullGoSearchPath gets the search paths for finding packages
    48  func FullGoSearchPath() string {
    49  	allPaths := os.Getenv(GOPATHKey)
    50  	if allPaths == "" {
    51  		allPaths = filepath.Join(os.Getenv("HOME"), "go")
    52  	}
    53  	if allPaths != "" {
    54  		allPaths = strings.Join([]string{allPaths, runtime.GOROOT()}, ":")
    55  	} else {
    56  		allPaths = runtime.GOROOT()
    57  	}
    58  	return allPaths
    59  }
    60
View as plain text