add man(1) generation

1 files changed, 43 insertions, 0 deletions

diff --git a/man/data.go b/man/data.go
new file mode 100644
index 0000000..322da8f
--- /dev/null
+++ b/man/data.go
@@ -0,0 +1,43 @@
+package main
+
+import (
+	_ "embed"
+	_ "github.com/ewy1/pik/flags"
+	"github.com/ewy1/pik/spool"
+	"github.com/spf13/pflag"
+	"runtime"
+	"runtime/debug"
+	"time"
+)
+
+//go:embed version.txt
+var version string
+
+type ManData struct {
+	Flags     []pflag.Flag
+	Now       string
+	Revision  string
+	Runtime   string
+	Version   string
+	ExitCodes map[int]*spool.ExitCode
+}
+
+func NewData() ManData {
+	var flags []pflag.Flag
+	pflag.Parse()
+	pflag.VisitAll(func(flag *pflag.Flag) {
+		flags = append(flags, *flag)
+	})
+	info, ok := debug.ReadBuildInfo()
+	if !ok {
+		_, _ = spool.Panic(spool.NoDebugInfo, "could not read debug info\n")
+	}
+	return ManData{
+		Flags:     flags,
+		Now:       time.Now().Format(time.DateTime),
+		Runtime:   runtime.Version(),
+		Version:   version,
+		Revision:  info.Main.Version,
+		ExitCodes: spool.CodeMap,
+	}
+}