From 4d152cc2622d491e1b0a034c3211b9df28c0ba2d Mon Sep 17 00:00:00 2001
From: Garrett D'Amore <garrett@damore.org>
Date: Sun, 22 Sep 2019 11:15:39 -0700
Subject: [PATCH] fixes #302 merge extended terminfo definitions into default

This makes the default build about 150k larger, but includes all
the good terminals needed to make most folks happy.  In addition,
it allows a build tag of tcell_minimal to suppress that.  Finally,
we do not include infocmp support on platforms unlikely to support
it, such as Windows, nacl, android, etc.
---
 terms_default.go | 23 +++++++++++++++++++++++
 terms_dynamic.go | 37 +++++++++++++++++++++++++++++++++++++
 terms_static.go  | 27 +++++++++++++++++++++++++++
 tscreen.go       |  5 ++---
 4 files changed, 89 insertions(+), 3 deletions(-)
 create mode 100644 terms_default.go
 create mode 100644 terms_dynamic.go
 create mode 100644 terms_static.go

diff --git a/terms_default.go b/terms_default.go
new file mode 100644
index 0000000..cf2dbaa
--- /dev/null
+++ b/terms_default.go
@@ -0,0 +1,23 @@
+// +build !tcell_minimal
+
+// Copyright 2019 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tcell
+
+import (
+	// This imports the default terminal entries.  To disable, use the
+	// tcell_minimal build tag.
+	_ "github.com/gdamore/tcell/terminfo/extended"
+)
diff --git a/terms_dynamic.go b/terms_dynamic.go
new file mode 100644
index 0000000..a06c087
--- /dev/null
+++ b/terms_dynamic.go
@@ -0,0 +1,37 @@
+// +build !tcell_minimal,!nacl,!js,!zos,!plan9,!windows,!android
+
+// Copyright 2019 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tcell
+
+import (
+	// This imports a dynamic version of the terminal database, which
+	// is built using infocmp.  This relies on a working installation
+	// of infocmp (typically supplied with ncurses).  We only do this
+	// for systems likely to have that -- i.e. UNIX based hosts.  We
+	// also don't support Android here, because you really don't want
+	// to run external programs there.  Generally the android terminals
+	// will be automatically included anyway.
+	"github.com/gdamore/tcell/terminfo"
+	"github.com/gdamore/tcell/terminfo/dynamic"
+)
+
+func loadDynamicTerminfo(term string) (*terminfo.Terminfo, error) {
+	ti, _, e := dynamic.LoadTerminfo(term)
+	if e != nil {
+		return nil, e
+	}
+	return ti, nil
+}
diff --git a/terms_static.go b/terms_static.go
new file mode 100644
index 0000000..379dbe1
--- /dev/null
+++ b/terms_static.go
@@ -0,0 +1,27 @@
+// +build tcell_minimal nacl js zos plan9 windows android
+
+// Copyright 2019 The TCell Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use file except in compliance with the License.
+// You may obtain a copy of the license at
+//
+//    http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package tcell
+
+import (
+	"errors"
+
+	"github.com/gdamore/tcell/terminfo"
+)
+
+func loadDynamicTerminfo(term string) (*terminfo.Terminfo, error) {
+	return nil, errors.New("terminal type unsupported")
+}
diff --git a/tscreen.go b/tscreen.go
index 76f17c9..b86a6c4 100644
--- a/tscreen.go
+++ b/tscreen.go
@@ -1,4 +1,4 @@
-// Copyright 2017 The TCell Authors
+// Copyright 2019 The TCell Authors
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use file except in compliance with the License.
@@ -26,7 +26,6 @@ import (
 	"golang.org/x/text/transform"
 
 	"github.com/gdamore/tcell/terminfo"
-	"github.com/gdamore/tcell/terminfo/dynamic"
 
 	// import the stock terminals
 	_ "github.com/gdamore/tcell/terminfo/base"
@@ -43,7 +42,7 @@ import (
 func NewTerminfoScreen() (Screen, error) {
 	ti, e := terminfo.LookupTerminfo(os.Getenv("TERM"))
 	if e != nil {
-		ti, _, e = dynamic.LoadTerminfo(os.Getenv("TERM"))
+		ti, e = loadDynamicTerminfo(os.Getenv("TERM"))
 		if e != nil {
 			return nil, e
 		}