Drop ncurses dependency

Close #818

7 files changed, 118 insertions, 15 deletions

diff --git a/src/Makefile b/src/Makefile
index 77a40944..e702548f 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -15,11 +15,17 @@ SRCDIR      := $(GOPATH)/src/github.com/junegunn/fzf/src
 DOCKEROPTS  := -i -t -v $(ROOTDIR):/fzf/src
 BINARY32    := fzf-$(GOOS)_386
 BINARY64    := fzf-$(GOOS)_amd64
+BINARYARM5  := fzf-$(GOOS)_arm5
+BINARYARM6  := fzf-$(GOOS)_arm6
 BINARYARM7  := fzf-$(GOOS)_arm7
+BINARYARM8  := fzf-$(GOOS)_arm8
 VERSION     := $(shell awk -F= '/version =/ {print $$2}' constants.go | tr -d "\" ")
 RELEASE32   := fzf-$(VERSION)-$(GOOS)_386
 RELEASE64   := fzf-$(VERSION)-$(GOOS)_amd64
+RELEASEARM5 := fzf-$(VERSION)-$(GOOS)_arm5
+RELEASEARM6 := fzf-$(VERSION)-$(GOOS)_arm6
 RELEASEARM7 := fzf-$(VERSION)-$(GOOS)_arm7
+RELEASEARM8 := fzf-$(VERSION)-$(GOOS)_arm8
 export GOPATH
 
 UNAME_M := $(shell uname -m)
@@ -35,16 +41,32 @@ all: fzf/$(BINARY)
 
 ifeq ($(GOOS),windows)
 release: fzf/$(BINARY32) fzf/$(BINARY64)
-	-cd fzf && cp $(BINARY32) $(RELEASE32).exe && zip $(RELEASE32).zip $(RELEASE32).exe
-	cd fzf && cp $(BINARY64) $(RELEASE64).exe && zip $(RELEASE64).zip $(RELEASE64).exe && \
-	rm -f $(RELEASE32).exe $(RELEASE64).exe
+	cd fzf && cp $(BINARY32) $(RELEASE32).exe && zip $(RELEASE32).zip $(RELEASE32).exe
+	cd fzf && cp $(BINARY64) $(RELEASE64).exe && zip $(RELEASE64).zip $(RELEASE64).exe
+	cd fzf && rm -f $(RELEASE32).exe $(RELEASE64).exe
+else ifeq ($(GOOS),linux)
+release: fzf/$(BINARY32) fzf/$(BINARY64) fzf/$(BINARYARM5) fzf/$(BINARYARM6) fzf/$(BINARYARM7) fzf/$(BINARYARM8)
+	cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
+	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64)
+	cd fzf && cp $(BINARYARM5) $(RELEASEARM5) && tar -czf $(RELEASEARM5).tgz $(RELEASEARM5)
+	cd fzf && cp $(BINARYARM6) $(RELEASEARM6) && tar -czf $(RELEASEARM6).tgz $(RELEASEARM6)
+	cd fzf && cp $(BINARYARM7) $(RELEASEARM7) && tar -czf $(RELEASEARM7).tgz $(RELEASEARM7)
+	cd fzf && cp $(BINARYARM8) $(RELEASEARM8) && tar -czf $(RELEASEARM8).tgz $(RELEASEARM8)
+	cd fzf && rm -f $(RELEASE32) $(RELEASE64) $(RELEASEARM5) $(RELEASEARM6) $(RELEASEARM7) $(RELEASEARM8)
 else
-release: test fzf/$(BINARY32) fzf/$(BINARY64)
-	-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
-	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
-	rm -f $(RELEASE32) $(RELEASE64)
+release: fzf/$(BINARY32) fzf/$(BINARY64)
+	cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
+	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64)
+	cd fzf && rm -f $(RELEASE32) $(RELEASE64)
 endif
 
+release-all: clean test
+	GOOS=darwin  make release
+	GOOS=linux   make release
+	GOOS=freebsd make release
+	GOOS=openbsd make release
+	GOOS=windows make release
+
 $(SRCDIR):
 	mkdir -p $(shell dirname $(SRCDIR))
 	ln -s $(ROOTDIR) $(SRCDIR)
@@ -60,7 +82,7 @@ android-build: $(SRCDIR)
 	rm -f $(RELEASEARM7)
 
 test: deps
-	SHELL=/bin/sh GOOS=$(GOOS) go test -v -tags "$(TAGS)" ./...
+	SHELL=/bin/sh GOOS= go test -v -tags "$(TAGS)" ./...
 
 install: $(BINDIR)/fzf
 
@@ -71,10 +93,23 @@ clean:
 	cd fzf && rm -f fzf-*
 
 fzf/$(BINARY32): deps
-	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARY32)
+	cd fzf && GOARCH=386 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARY32)
 
 fzf/$(BINARY64): deps
-	cd fzf && go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARY64)
+	cd fzf && GOARCH=amd64 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARY64)
+
+# https://github.com/golang/go/wiki/GoArm
+fzf/$(BINARYARM5): deps
+	cd fzf && GOARCH=arm GOARM=5 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARYARM5)
+
+fzf/$(BINARYARM6): deps
+	cd fzf && GOARCH=arm GOARM=6 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARYARM6)
+
+fzf/$(BINARYARM7): deps
+	cd fzf && GOARCH=arm GOARM=7 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARYARM7)
+
+fzf/$(BINARYARM8): deps
+	cd fzf && GOARCH=arm64 go build -a -ldflags "-w -extldflags=$(LDFLAGS)" -tags "$(TAGS)" -o $(BINARYARM8)
 
 $(BINDIR)/fzf: fzf/$(BINARY) | $(BINDIR)
 	cp -f fzf/$(BINARY) $(BINDIR)
diff --git a/src/README.md b/src/README.md
index 2d065a92..ec88ca23 100644
--- a/src/README.md
+++ b/src/README.md
@@ -59,20 +59,31 @@ Unit tests can be run with `make test`. Integration tests are written in Ruby
 script that should be run on tmux.
 
 ```sh
+cd src
+
 # Unit tests
 make test
 
+# Integration tests
+ruby ../test/test_go.rb
+
+# Build binary for the platform
+make
+
 # Install the executable to ../bin directory
 make install
 
-# Integration tests
-ruby ../test/test_go.rb
+# Make release archives
+make release
+
+# Make release archives for all supported platforms
+make release-all
 ```
 
 Third-party libraries used
 --------------------------
 
-- [ncurses][ncurses]
+- ~[ncurses][ncurses]~
 - [mattn/go-runewidth](https://github.com/mattn/go-runewidth)
     - Licensed under [MIT](http://mattn.mit-license.org)
 - [mattn/go-shellwords](https://github.com/mattn/go-shellwords)
diff --git a/src/constants.go b/src/constants.go
index 0faa7da1..082909b8 100644
--- a/src/constants.go
+++ b/src/constants.go
@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.16.1"
+	version = "0.16.2-alpha"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
diff --git a/src/terminal.go b/src/terminal.go
index 9e30f302..7fcef605 100644
--- a/src/terminal.go
+++ b/src/terminal.go
@@ -305,8 +305,11 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 			return util.Max(maxHeight, minHeight)
 		}
 		renderer = tui.NewLightRenderer(opts.Theme, opts.Black, opts.Mouse, opts.Tabstop, maxHeightFunc)
-	} else {
+	} else if tui.HasFullscreenRenderer() {
 		renderer = tui.NewFullscreenRenderer(opts.Theme, opts.Black, opts.Mouse)
+	} else {
+		renderer = tui.NewLightRenderer(opts.Theme, opts.Black, opts.Mouse, opts.Tabstop,
+			func(h int) int { return h })
 	}
 	wordRubout := "[^[:alnum:]][[:alnum:]]"
 	wordNext := "[[:alnum:]][^[:alnum:]]|(.$)"
diff --git a/src/tui/dummy.go b/src/tui/dummy.go
new file mode 100644
index 00000000..01179c89
--- /dev/null
+++ b/src/tui/dummy.go
@@ -0,0 +1,45 @@
+// +build !ncurses
+// +build !tcell
+// +build !windows
+
+package tui
+
+type Attr int
+
+func HasFullscreenRenderer() bool {
+	return false
+}
+
+func (a Attr) Merge(b Attr) Attr {
+	return a | b
+}
+
+const (
+	AttrRegular Attr = Attr(0)
+	Bold             = Attr(1)
+	Dim              = Attr(1 << 1)
+	Italic           = Attr(1 << 2)
+	Underline        = Attr(1 << 3)
+	Blink            = Attr(1 << 4)
+	Blink2           = Attr(1 << 5)
+	Reverse          = Attr(1 << 6)
+)
+
+func (r *FullscreenRenderer) Init()    {}
+func (r *FullscreenRenderer) Pause()   {}
+func (r *FullscreenRenderer) Clear()   {}
+func (r *FullscreenRenderer) Refresh() {}
+func (r *FullscreenRenderer) Close()   {}
+
+func (r *FullscreenRenderer) Resume() bool       { return false }
+func (r *FullscreenRenderer) DoesAutoWrap() bool { return false }
+func (r *FullscreenRenderer) IsOptimized() bool  { return false }
+func (r *FullscreenRenderer) GetChar() Event     { return Event{} }
+func (r *FullscreenRenderer) MaxX() int          { return 0 }
+func (r *FullscreenRenderer) MaxY() int          { return 0 }
+
+func (r *FullscreenRenderer) RefreshWindows(windows []Window) {}
+
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, border bool) Window {
+	return nil
+}
diff --git a/src/tui/ncurses.go b/src/tui/ncurses.go
index 0978ea8a..2706c91d 100644
--- a/src/tui/ncurses.go
+++ b/src/tui/ncurses.go
@@ -1,3 +1,4 @@
+// +build ncurses
 // +build !windows
 // +build !tcell
 
@@ -32,6 +33,10 @@ import (
 	"unicode/utf8"
 )
 
+func HasFullscreenRenderer() bool {
+	return true
+}
+
 type Attr C.uint
 
 type CursesWindow struct {
diff --git a/src/tui/tcell.go b/src/tui/tcell.go
index c898a383..4836bf3c 100644
--- a/src/tui/tcell.go
+++ b/src/tui/tcell.go
@@ -15,6 +15,10 @@ import (
 	"github.com/junegunn/go-runewidth"
 )
 
+func HasFullscreenRenderer() bool {
+	return true
+}
+
 func (p ColorPair) style() tcell.Style {
 	style := tcell.StyleDefault
 	return style.Foreground(tcell.Color(p.Fg())).Background(tcell.Color(p.Bg()))