podman

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// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package swag
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import (
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	"os"
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	"path/filepath"
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	"runtime"
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	"strings"
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)
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const (
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	// GOPATHKey represents the env key for gopath
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	GOPATHKey = "GOPATH"
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)
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// FindInSearchPath finds a package in a provided lists of paths
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func FindInSearchPath(searchPath, pkg string) string {
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	pathsList := filepath.SplitList(searchPath)
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	for _, path := range pathsList {
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		if evaluatedPath, err := filepath.EvalSymlinks(filepath.Join(path, "src", pkg)); err == nil {
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			if _, err := os.Stat(evaluatedPath); err == nil {
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				return evaluatedPath
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			}
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		}
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	}
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	return ""
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}
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// FindInGoSearchPath finds a package in the $GOPATH:$GOROOT
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func FindInGoSearchPath(pkg string) string {
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	return FindInSearchPath(FullGoSearchPath(), pkg)
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}
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// FullGoSearchPath gets the search paths for finding packages
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func FullGoSearchPath() string {
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	allPaths := os.Getenv(GOPATHKey)
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	if allPaths == "" {
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		allPaths = filepath.Join(os.Getenv("HOME"), "go")
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	}
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	if allPaths != "" {
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		allPaths = strings.Join([]string{allPaths, runtime.GOROOT()}, ":")
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	} else {
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		allPaths = runtime.GOROOT()
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	}
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	return allPaths
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}
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