Embed man page in the binary and show it on 'fzf --man'

1 files changed, 18 insertions, 0 deletions

diff --git a/main.go b/main.go
index 1e05345c..8ba0aed2 100644
--- a/main.go
+++ b/main.go
@@ -4,6 +4,7 @@ import (
 	_ "embed"
 	"fmt"
 	"os"
+	"os/exec"
 	"strings"
 
 	fzf "github.com/junegunn/fzf/src"
@@ -28,6 +29,9 @@ var zshCompletion []byte
 //go:embed shell/key-bindings.fish
 var fishKeyBindings []byte
 
+//go:embed man/man1/fzf.1
+var manPage []byte
+
 func printScript(label string, content []byte) {
 	fmt.Println("### " + label + " ###")
 	fmt.Println(strings.TrimSpace(string(content)))
@@ -76,6 +80,20 @@ func main() {
 		}
 		return
 	}
+	if options.Man {
+		file := fzf.WriteTemporaryFile([]string{string(manPage)}, "\n")
+		if len(file) == 0 {
+			fmt.Print(string(manPage))
+			return
+		}
+		defer os.Remove(file)
+		cmd := exec.Command("man", file)
+		cmd.Stdout = os.Stdout
+		if err := cmd.Run(); err != nil {
+			fmt.Print(string(manPage))
+		}
+		return
+	}
 
 	code, err := fzf.Run(options)
 	exit(code, err)