Windows support (fixed #217)

* Swap out gopass dependency

Remove github.com/mewbak/gopass in favor of github.com/howeyc/gopass

* Add Windows to Makefile and build_release

Added Windows/386 and Windows/amd64 to the Makefile.  Some minor changes
needed to be made to build_release to give the windows binary the ".exe"
extension.

* Makefile: remove windows/amd64

.gitmodules

@@ -6,10 +6,6 @@
 	path = vendor/github.com/jessevdk/go-flags
 	url = https://github.com/jessevdk/go-flags
 	branch = master
-[submodule "vendor/github.com/mewbak/gopass"]
-	path = vendor/github.com/mewbak/gopass
-	url = https://github.com/mewbak/gopass
-	branch = master
 [submodule "vendor/github.com/shazow/rateio"]
 	path = vendor/github.com/shazow/rateio
 	url = https://github.com/shazow/rateio
@@ -18,3 +14,6 @@
 	path = vendor/github.com/dustin/go-humanize
 	url = https://github.com/dustin/go-humanize
 	branch = master
+[submodule "vendor/github.com/howeyc/gopass"]
+	path = vendor/github.com/howeyc/gopass
+	url = https://github.com/howeyc/gopass.git

Makefile

@@ -39,3 +39,4 @@ release:
 	GOOS=linux GOARCH=386 $(LDFLAGS) ./build_release "github.com/shazow/ssh-chat/cmd/ssh-chat" README.md LICENSE
 	GOOS=darwin GOARCH=amd64 $(LDFLAGS) ./build_release "github.com/shazow/ssh-chat/cmd/ssh-chat" README.md LICENSE
 	GOOS=freebsd GOARCH=amd64 $(LDFLAGS) ./build_release "github.com/shazow/ssh-chat/cmd/ssh-chat" README.md LICENSE
+	GOOS=windows GOARCH=386 $(LDFLAGS) ./build_release "github.com/shazow/ssh-chat/cmd/ssh-chat" README.md LICENSE

build_release

@@ -37,6 +37,11 @@ build() {
     local bin="$(basename $package)"
     local tarball="${bin}-${GOOS}_${GOARCH}.tgz"
     local outdir="$BUILDDIR/$bin"
+    local tardir="$bin"
+    if [ "$GOOS" == "windows" ]; then
+        bin="$bin.exe"
+    fi
+
 
     if [[ -d "$outdir" ]]; then
         echo "err: outdir already exists: $PWD/$outdir"
@@ -51,7 +56,7 @@ build() {
     fi
 
     # Create tarball
-    tar -C "$BUILDDIR" -czvf "$BUILDDIR/$tarball" "$bin"
+    tar -C "$BUILDDIR" -czvf "$BUILDDIR/$tarball" "$tardir"
 
     # Cleanup
     rm -rf "$outdir"

cmd/ssh-chat/key.go

@@ -7,7 +7,7 @@ import (
 	"io/ioutil"
 	"os"
 
-	"github.com/mewbak/gopass"
+	"github.com/howeyc/gopass"
 )
 
 // ReadPrivateKey attempts to read your private key and possibly decrypt it if it
@@ -28,14 +28,15 @@ func ReadPrivateKey(path string) ([]byte, error) {
 		return privateKey, nil
 	}
 
-	passphrase := os.Getenv("IDENTITY_PASSPHRASE")
-	if passphrase == "" {
-		passphrase, err = gopass.GetPass("Enter passphrase: ")
+	passphrase := []byte(os.Getenv("IDENTITY_PASSPHRASE"))
+	if len(passphrase) == 0 {
+		fmt.Print("Enter passphrase: ")
+		passphrase, err = gopass.GetPasswd()
 		if err != nil {
 			return nil, fmt.Errorf("couldn't read passphrase: %v", err)
 		}
 	}
-	der, err := x509.DecryptPEMBlock(block, []byte(passphrase))
+	der, err := x509.DecryptPEMBlock(block, passphrase)
 	if err != nil {
 		return nil, fmt.Errorf("decrypt failed: %v", err)
 	}