From d235e2c6a5788ec4a6cff15a16f56b38a3876a0d Mon Sep 17 00:00:00 2001 From: Determinant Date: Sun, 28 Jun 2020 14:47:41 -0400 Subject: ... --- cmd/utils/customflags.go | 240 ----------------------------------------------- 1 file changed, 240 deletions(-) delete mode 100644 cmd/utils/customflags.go (limited to 'cmd/utils/customflags.go') diff --git a/cmd/utils/customflags.go b/cmd/utils/customflags.go deleted file mode 100644 index e3941e0..0000000 --- a/cmd/utils/customflags.go +++ /dev/null @@ -1,240 +0,0 @@ -// Copyright 2015 The go-ethereum Authors -// This file is part of go-ethereum. -// -// go-ethereum is free software: you can redistribute it and/or modify -// it under the terms of the GNU General Public License as published by -// the Free Software Foundation, either version 3 of the License, or -// (at your option) any later version. -// -// go-ethereum is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -// GNU General Public License for more details. -// -// You should have received a copy of the GNU General Public License -// along with go-ethereum. If not, see . - -package utils - -import ( - "encoding" - "errors" - "flag" - "fmt" - "math/big" - "os" - "os/user" - "path" - "strings" - - "github.com/ava-labs/go-ethereum/common/math" - "gopkg.in/urfave/cli.v1" -) - -// Custom type which is registered in the flags library which cli uses for -// argument parsing. This allows us to expand Value to an absolute path when -// the argument is parsed -type DirectoryString struct { - Value string -} - -func (self *DirectoryString) String() string { - return self.Value -} - -func (self *DirectoryString) Set(value string) error { - self.Value = expandPath(value) - return nil -} - -// Custom cli.Flag type which expand the received string to an absolute path. -// e.g. ~/.ethereum -> /home/username/.ethereum -type DirectoryFlag struct { - Name string - Value DirectoryString - Usage string -} - -func (self DirectoryFlag) String() string { - fmtString := "%s %v\t%v" - if len(self.Value.Value) > 0 { - fmtString = "%s \"%v\"\t%v" - } - return fmt.Sprintf(fmtString, prefixedNames(self.Name), self.Value.Value, self.Usage) -} - -func eachName(longName string, fn func(string)) { - parts := strings.Split(longName, ",") - for _, name := range parts { - name = strings.Trim(name, " ") - fn(name) - } -} - -// called by cli library, grabs variable from environment (if in env) -// and adds variable to flag set for parsing. -func (self DirectoryFlag) Apply(set *flag.FlagSet) { - eachName(self.Name, func(name string) { - set.Var(&self.Value, self.Name, self.Usage) - }) -} - -type TextMarshaler interface { - encoding.TextMarshaler - encoding.TextUnmarshaler -} - -// textMarshalerVal turns a TextMarshaler into a flag.Value -type textMarshalerVal struct { - v TextMarshaler -} - -func (v textMarshalerVal) String() string { - if v.v == nil { - return "" - } - text, _ := v.v.MarshalText() - return string(text) -} - -func (v textMarshalerVal) Set(s string) error { - return v.v.UnmarshalText([]byte(s)) -} - -// TextMarshalerFlag wraps a TextMarshaler value. -type TextMarshalerFlag struct { - Name string - Value TextMarshaler - Usage string -} - -func (f TextMarshalerFlag) GetName() string { - return f.Name -} - -func (f TextMarshalerFlag) String() string { - return fmt.Sprintf("%s \"%v\"\t%v", prefixedNames(f.Name), f.Value, f.Usage) -} - -func (f TextMarshalerFlag) Apply(set *flag.FlagSet) { - eachName(f.Name, func(name string) { - set.Var(textMarshalerVal{f.Value}, f.Name, f.Usage) - }) -} - -// GlobalTextMarshaler returns the value of a TextMarshalerFlag from the global flag set. -func GlobalTextMarshaler(ctx *cli.Context, name string) TextMarshaler { - val := ctx.GlobalGeneric(name) - if val == nil { - return nil - } - return val.(textMarshalerVal).v -} - -// BigFlag is a command line flag that accepts 256 bit big integers in decimal or -// hexadecimal syntax. -type BigFlag struct { - Name string - Value *big.Int - Usage string -} - -// bigValue turns *big.Int into a flag.Value -type bigValue big.Int - -func (b *bigValue) String() string { - if b == nil { - return "" - } - return (*big.Int)(b).String() -} - -func (b *bigValue) Set(s string) error { - int, ok := math.ParseBig256(s) - if !ok { - return errors.New("invalid integer syntax") - } - *b = (bigValue)(*int) - return nil -} - -func (f BigFlag) GetName() string { - return f.Name -} - -func (f BigFlag) String() string { - fmtString := "%s %v\t%v" - if f.Value != nil { - fmtString = "%s \"%v\"\t%v" - } - return fmt.Sprintf(fmtString, prefixedNames(f.Name), f.Value, f.Usage) -} - -func (f BigFlag) Apply(set *flag.FlagSet) { - eachName(f.Name, func(name string) { - set.Var((*bigValue)(f.Value), f.Name, f.Usage) - }) -} - -// GlobalBig returns the value of a BigFlag from the global flag set. -func GlobalBig(ctx *cli.Context, name string) *big.Int { - val := ctx.GlobalGeneric(name) - if val == nil { - return nil - } - return (*big.Int)(val.(*bigValue)) -} - -func prefixFor(name string) (prefix string) { - if len(name) == 1 { - prefix = "-" - } else { - prefix = "--" - } - - return -} - -func prefixedNames(fullName string) (prefixed string) { - parts := strings.Split(fullName, ",") - for i, name := range parts { - name = strings.Trim(name, " ") - prefixed += prefixFor(name) + name - if i < len(parts)-1 { - prefixed += ", " - } - } - return -} - -func (self DirectoryFlag) GetName() string { - return self.Name -} - -func (self *DirectoryFlag) Set(value string) { - self.Value.Value = value -} - -// Expands a file path -// 1. replace tilde with users home dir -// 2. expands embedded environment variables -// 3. cleans the path, e.g. /a/b/../c -> /a/c -// Note, it has limitations, e.g. ~someuser/tmp will not be expanded -func expandPath(p string) string { - if strings.HasPrefix(p, "~/") || strings.HasPrefix(p, "~\\") { - if home := homeDir(); home != "" { - p = home + p[1:] - } - } - return path.Clean(os.ExpandEnv(p)) -} - -func homeDir() string { - if home := os.Getenv("HOME"); home != "" { - return home - } - if usr, err := user.Current(); err == nil { - return usr.HomeDir - } - return "" -} -- cgit v1.2.3