Use filepath package throughout for Windows support

The "path" package supports only forward slashes in paths, like those
found in *nix operating systems or URLs.

Meanwhile Windows with its CP/M and QDOS ancestry requires drive letters
and backslashes, and thus the "filepath" package needs to be used.

config.go

@@ -26,7 +26,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
-	"path"
+	"path/filepath"
 
 	"github.com/naoina/toml"
 	"gopkg.in/yaml.v2"
@@ -50,7 +50,7 @@ func newConfig(filename string) (*config, error) {
 	}
 
 	conf := &config{handled: make(map[string]bool)}
-	switch path.Ext(filename) {
+	switch filepath.Ext(filename) {
 	case ".json":
 		if err := json.Unmarshal(bytes, &conf); err != nil {
 			return nil, err

homemaker.go

@@ -27,7 +27,7 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"path"
+	"path/filepath"
 	"strings"
 )
 
@@ -43,7 +43,7 @@ const (
 )
 
 func usage() {
-	fmt.Fprintf(os.Stderr, "Usage: %s [options] conf src\n", path.Base(os.Args[0]))
+	fmt.Fprintf(os.Stderr, "Usage: %s [options] conf src\n", filepath.Base(os.Args[0]))
 	fmt.Fprintf(os.Stderr, "https://foosoft.net/projects/homemaker/\n\n")
 	fmt.Fprintf(os.Stderr, "Parameters:\n")
 	flag.PrintDefaults()

link.go

@@ -26,7 +26,7 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"path"
+	"path/filepath"
 	"strconv"
 )
 
@@ -65,13 +65,13 @@ func processLink(params []string, conf *config) error {
 	}
 
 	srcPathAbs := srcPath
-	if !path.IsAbs(srcPathAbs) {
-		srcPathAbs = path.Join(conf.srcDir, srcPath)
+	if !filepath.IsAbs(srcPathAbs) {
+		srcPathAbs = filepath.Join(conf.srcDir, srcPath)
 	}
 
 	dstPathAbs := dstPath
-	if !path.IsAbs(dstPathAbs) {
-		dstPathAbs = path.Join(conf.dstDir, dstPath)
+	if !filepath.IsAbs(dstPathAbs) {
+		dstPathAbs = filepath.Join(conf.dstDir, dstPath)
 	}
 
 	if conf.flags&flagUnlink != flagUnlink {

template.go

@@ -26,7 +26,7 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"path"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"text/template"
@@ -79,13 +79,13 @@ func processTemplate(params []string, conf *config) (err error) {
 	}
 
 	srcPathAbs := srcPath
-	if !path.IsAbs(srcPathAbs) {
-		srcPathAbs = path.Join(conf.srcDir, srcPath)
+	if !filepath.IsAbs(srcPathAbs) {
+		srcPathAbs = filepath.Join(conf.srcDir, srcPath)
 	}
 
 	dstPathAbs := dstPath
-	if !path.IsAbs(dstPathAbs) {
-		dstPathAbs = path.Join(conf.dstDir, dstPath)
+	if !filepath.IsAbs(dstPathAbs) {
+		dstPathAbs = filepath.Join(conf.dstDir, dstPath)
 	}
 
 	if _, err = os.Stat(srcPathAbs); os.IsNotExist(err) {

util.go

@@ -26,7 +26,6 @@ import (
 	"fmt"
 	"log"
 	"os"
-	"path"
 	"path/filepath"
 	"strings"
 )
@@ -78,7 +77,7 @@ func cleanPath(loc string, flags int) (bool, error) {
 }
 
 func createPath(loc string, flags int, mode os.FileMode) error {
-	parentDir := path.Dir(loc)
+	parentDir := filepath.Dir(loc)
 
 	if _, err := os.Stat(parentDir); os.IsNotExist(err) {
 		if flags&flagForce != 0 || prompt("force create path", parentDir) {