general bash help for go-args

bash.go

@@ -0,0 +1,60 @@
+package fhelp
+
+// for use with Alex Flint's go-args package
+
+import (
+	"fmt"
+	"os"
+)
+
+// makes a bash autocomplete file for your command
+func DoBash(ARGNAME string) {
+	fmt.Println("# add this in your bashrc:")
+	fmt.Println("")
+	fmt.Println("# todo: add this to go-arg as a 'hidden' go-arg option --bash")
+	fmt.Println("#")
+	fmt.Println("# todo: can this output work/parse with:")
+	fmt.Println("# complete -C `" + ARGNAME + " --bash` " + ARGNAME)
+	fmt.Println("")
+	fmt.Println("_" + ARGNAME + "_complete()")
+	fmt.Println("{")
+	fmt.Println("	# sets local to this func vars")
+	fmt.Println("	local cur prev all")
+	fmt.Println("	cur=${COMP_WORDS[COMP_CWORD]}")
+	fmt.Println("	prev=${COMP_WORDS[COMP_CWORD-1]}")
+	fmt.Println("	all=${COMP_WORDS[@]}")
+	fmt.Println("")
+	fmt.Println("	# this is where we generate the go-arg output")
+	fmt.Println("        GOARGS=$(" + ARGNAME + " --auto-complete $prev \\'$cur\\' $all)")
+	fmt.Println("")
+	fmt.Println("	# this compares the command line input from the user")
+	fmt.Println("	# to whatever strings we output")
+	fmt.Println("        COMPREPLY=( $(compgen -W \"$GOARGS\" -- $cur) )  # THIS WORKS")
+	fmt.Println("	return 0")
+	fmt.Println("}")
+	fmt.Println("complete -F _" + ARGNAME + "_complete " + ARGNAME)
+	fmt.Println("")
+	fmt.Println("# copy and paste the above into your bash shell should work")
+	os.Exit(0)
+}
+
+/*
+// prints help to STDERR // TODO: move everything below this to go-args
+func (args) doBashHelp() {
+	if argv.BashAuto[1] != "''" {
+		// if this is not blank, then the user has typed something
+		return
+	}
+	if argv.BashAuto[0] != ARGNAME {
+		// if this is not the name of the command, the user already started doing something
+		return
+	}
+	if argv.BashAuto[0] == ARGNAME {
+		me.pp.WriteHelp(os.Stderr)
+		return
+	}
+	fmt.Fprintln(os.Stderr, "")
+	fmt.Fprintln(os.Stderr, "hello world")
+	fmt.Fprintln(os.Stderr, "")
+}
+*/