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// Copyright (C) 2017 Luke Shumaker <lukeshu@lukeshu.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
package libfastimport
import (
"fmt"
"strconv"
"strings"
"git.lukeshu.com/go/libfastimport/textproto"
)
// comment /////////////////////////////////////////////////////////////////////
type CmdComment struct {
Comment string
}
func (c CmdComment) fiCmdClass() cmdClass { return cmdClassComment }
func (c CmdComment) fiCmdWrite(fiw fiWriter) error {
return fiw.WriteLine("#" + c.Comment)
}
func init() { parser_registerCmd("#", CmdComment{}) }
func (CmdComment) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
line, err := fir.ReadLine()
if err != nil {
return nil, err
}
return CmdComment{Comment: trimLinePrefix(line, "#")}, nil
}
// get-mark ////////////////////////////////////////////////////////////////////
type CmdGetMark struct {
Mark int
}
func (c CmdGetMark) fiCmdClass() cmdClass { return cmdClassComment }
func (c CmdGetMark) fiCmdWrite(fiw fiWriter) error {
return fiw.WriteLine("get-mark", ":"+strconv.Itoa(c.Mark))
}
func init() { parser_registerCmd("get-mark :", CmdGetMark{}) }
func (CmdGetMark) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
line, err := fir.ReadLine()
if err != nil {
return nil, err
}
c := CmdGetMark{}
c.Mark, err = strconv.Atoi(trimLinePrefix(line, "get-mark :"))
if err != nil {
return nil, fmt.Errorf("get-mark: %v", err)
}
return c, nil
}
// cat-blob ////////////////////////////////////////////////////////////////////
type CmdCatBlob struct {
DataRef string
}
func (c CmdCatBlob) fiCmdClass() cmdClass { return cmdClassComment }
func (c CmdCatBlob) fiCmdWrite(fiw fiWriter) error {
return fiw.WriteLine("cat-blob", c.DataRef)
}
func init() { parser_registerCmd("cat-blob ", CmdCatBlob{}) }
func (CmdCatBlob) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
line, err := fir.ReadLine()
if err != nil {
return nil, err
}
return CmdCatBlob{DataRef: trimLinePrefix(line, "cat-blob ")}, nil
}
// ls //////////////////////////////////////////////////////////////////////////
type CmdLs struct {
DataRef string // optional if inside of a commit
Path textproto.Path
}
// If you're thinking "but wait, parser_registerCmd will see CmdLs as
// cmdClassCommit, not cmdClassComment, that means it won't be allowed
// embedded inside other commands! (while still allowing it both
// inside and outside of a commit)", you're absolutely correct.
// That's the desired behavior. It's a happy accident that the little
// fiCmdClass hack works out that way, instead of having to add even
// more complexity.
func (c CmdLs) fiCmdClass() cmdClass {
if c.DataRef == "" {
return cmdClassCommit
}
return cmdClassComment
}
func (c CmdLs) fiCmdWrite(fiw fiWriter) error {
if c.DataRef == "" {
return fiw.WriteLine("ls", c.Path)
} else {
return fiw.WriteLine("ls", c.DataRef, c.Path)
}
}
func init() { parser_registerCmd("ls ", CmdLs{}) }
func (CmdLs) fiCmdRead(fir fiReader) (cmd Cmd, err error) {
// 'ls' SP <dataref> SP <path> LF
line, err := fir.ReadLine()
if err != nil {
return nil, err
}
str := trimLinePrefix(line, "ls ")
sp := -1
if !strings.HasPrefix(str, "\"") {
sp = strings.IndexByte(line, ' ')
}
c := CmdLs{}
c.Path = textproto.PathUnescape(str[sp+1:])
if sp >= 0 {
c.DataRef = str[:sp]
}
return c, nil
}
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