v0.1.2 moved xterm color functionality to color package, adapters added for compatibility

inline/sys_unix.go

@@ -0,0 +1,43 @@
+//go:build unix
+
+package inline
+
+import (
+	"os"
+	"strings"
+
+	"golang.org/x/sys/unix"
+)
+
+func detectColorMode() colorMode {
+	colorterm := os.Getenv("COLORTERM")
+	if colorterm == "truecolor" || colorterm == "24bit" {
+		return colorModeTrueColor
+	}
+
+	if os.Getenv("KITTY_WINDOW_ID") != "" ||
+		os.Getenv("KONSOLE_VERSION") != "" ||
+		os.Getenv("ITERM_SESSION_ID") != "" ||
+		os.Getenv("ALACRITTY_WINDOW_ID") != "" ||
+		os.Getenv("ALACRITTY_LOG") != "" ||
+		os.Getenv("WEZTERM_PANE") != "" {
+		return colorModeTrueColor
+	}
+
+	term := os.Getenv("TERM")
+	if strings.Contains(term, "truecolor") ||
+		strings.Contains(term, "24bit") ||
+		strings.Contains(term, "direct") {
+		return colorModeTrueColor
+	}
+
+	return colorMode256
+}
+
+func windowSize(f *os.File) (w, h int, ok bool) {
+	ws, err := unix.IoctlGetWinsize(int(f.Fd()), unix.TIOCGWINSZ)
+	if err != nil || ws.Col == 0 {
+		return 0, 0, false
+	}
+	return int(ws.Col), int(ws.Row), true
+}