jesseduffield.lazygit/gui.go
Jesse Duffield 4b511863f9 improved UI
2018-05-19 17:04:33 +10:00

273 lines
7.6 KiB
Go

// Copyright 2014 The gocui Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
// "io"
// "io/ioutil"
"log"
// "strings"
"os"
"github.com/jroimartin/gocui"
"github.com/fatih/color"
)
type gitFile struct {
Name string
Staged bool
}
var gitFiles []gitFile
func nextView(g *gocui.Gui, v *gocui.View) error {
if v == nil || v.Name() == "side" {
_, err := g.SetCurrentView("main")
return err
}
_, err := g.SetCurrentView("side")
return err
}
func cursorDown(g *gocui.Gui, v *gocui.View) error {
if v != nil {
cx, cy := v.Cursor()
if err := v.SetCursor(cx, cy+1); err != nil {
ox, oy := v.Origin()
if err := v.SetOrigin(ox, oy+1); err != nil {
return err
}
}
}
// refresh main panel's text to match newly selected item
return handleItemSelect(g, v)
}
func cursorUp(g *gocui.Gui, v *gocui.View) error {
if v != nil {
ox, oy := v.Origin()
cx, cy := v.Cursor()
if err := v.SetCursor(cx, cy-1); err != nil && oy > 0 {
if err := v.SetOrigin(ox, oy-1); err != nil {
return err
}
}
}
// refresh main panel's text to match newly selected item
return handleItemSelect(g, v)
}
func devLog(s string) {
f, _ := os.OpenFile("development.log", os.O_APPEND|os.O_WRONLY, 0644)
defer f.Close()
f.WriteString(s + "\n")
}
func handleItemPress(g *gocui.Gui, v *gocui.View) error {
item := getItem(v)
if item.Staged {
unStageFile(item.Name)
} else {
stageFile(item.Name)
}
if err := refreshList(v); err != nil {
return err
}
return nil
}
func getItem(v *gocui.View) gitFile {
_, lineNumber := v.Cursor()
if lineNumber >= len(gitFiles) {
return gitFiles[len(gitFiles) - 1]
}
return gitFiles[lineNumber]
}
func handleItemSelect(g *gocui.Gui, v *gocui.View) error {
item := getItem(v)
diff := getDiff(item.Name, item.Staged)
devLog(diff)
if err := renderString(g, diff); err != nil {
return err
}
// maxX, maxY := g.Size()
// if v, err := g.SetView("msg", maxX/2-30, maxY/2, maxX/2+30, maxY/2+2); err != nil {
// if err != gocui.ErrUnknownView {
// return err
// }
// fmt.Fprintln(v, l)
// if _, err := g.SetCurrentView("msg"); err != nil {
// return err
// }
// }
return nil
}
func delMsg(g *gocui.Gui, v *gocui.View) error {
if err := g.DeleteView("msg"); err != nil {
return err
}
if _, err := g.SetCurrentView("side"); err != nil {
return err
}
return nil
}
func quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit
}
func keybindings(g *gocui.Gui) error {
if err := g.SetKeybinding("side", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
return err
}
if err := g.SetKeybinding("main", gocui.KeyCtrlSpace, gocui.ModNone, nextView); err != nil {
return err
}
if err := g.SetKeybinding("side", gocui.KeyArrowDown, gocui.ModNone, cursorDown); err != nil {
return err
}
if err := g.SetKeybinding("side", gocui.KeyArrowUp, gocui.ModNone, cursorUp); err != nil {
return err
}
if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
return err
}
if err := g.SetKeybinding("", gocui.KeyEsc, gocui.ModNone, quit); err != nil {
return err
}
if err := g.SetKeybinding("side", gocui.KeySpace, gocui.ModNone, handleItemPress); err != nil {
return err
}
// if err := g.SetKeybinding("msg", gocui.KeySpace, gocui.ModNone, delMsg); err != nil {
// return err
// }
return nil
}
func refreshList(v *gocui.View) error {
// get files to stage
statusString, _ := runCommand("git status")
filesToStage := getFilesToStage(statusString)
filesToUnstage := getFilesToUnstage(statusString)
// v.Highlight = true
// v.SelBgColor = gocui.ColorWhite
// v.SelFgColor = gocui.ColorBlack
v.Clear()
gitFiles = make([]gitFile, 0)
red := color.New(color.FgRed)
for _, file := range filesToStage {
gitFiles = append(gitFiles, gitFile{file, false})
red.Fprintln(v, file)
}
green := color.New(color.FgGreen)
for _, file := range filesToUnstage {
gitFiles = append(gitFiles, gitFile{file, true})
green.Fprintln(v, file)
}
devLog(fmt.Sprint(gitFiles))
return nil
}
func layout(g *gocui.Gui) error {
maxX, maxY := g.Size()
sideView, err := g.SetView("side", -1, -1, 30, maxY)
if err != nil {
if err != gocui.ErrUnknownView {
return err
}
sideView.Title = "Files"
devLog("test")
refreshList(sideView)
}
if v, err := g.SetView("main", 30, -1, maxX, maxY); err != nil {
if err != gocui.ErrUnknownView {
return err
}
v.Editable = true
v.Wrap = true
if _, err := g.SetCurrentView("side"); err != nil {
return err
}
handleItemSelect(g, sideView)
}
return nil
}
func renderString(g *gocui.Gui, s string) error {
g.Update(func(*gocui.Gui) error {
v, err := g.View("main")
if err != nil {
panic(err)
}
v.Clear()
fmt.Fprint(v, s)
v.Wrap = true
return nil
})
return nil
}
func run() {
g, err := gocui.NewGui(gocui.OutputNormal)
if err != nil {
log.Panicln(err)
}
defer g.Close()
g.Cursor = true
g.SetManagerFunc(layout)
if err := keybindings(g); err != nil {
log.Panicln(err)
}
if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
log.Panicln(err)
}
}
// const mcRide = "
// `.-::-`
// -/o+oossys+:.
// `+o++++++osssyys/`
// ://-:+.` .::-. . `++oyyo/-/+oooosyhy.
// `-+sy::-:::/+o+yss+-... /s++ss/:/:+osyoosydh`
// `-:/+o/:/+:/+-s/:s/o+`/++s++/:--/+shds+++yd:
// `y+/+soy:+/-o++y+yhyyyo/---/oyhddo/::od-
// .+o-``-+syysy//o:-oo+oyyyo+oyhyddds/oshy
// `:o++o+/-....-:/+oooyyh+:ooshhhhhhdddssyyy`
// .:o+/++ooosso//:::+yo.::hs+++:yhhhhdddhoyhh:
// `-/+so///+osyso-.:://++-` `:hhhdsohddhhhdddssh+
// -+oso++ssoyys:.` ydddddddddddhho+yd+
// `:sysssssssydh:` `-:::-..-...`ydddddddddyso++shds
// `/syyysssyyhhdd+``..://+ooo/++ssssoyddddddhho/:::oyhdhs-`
// -syyyysssyhhddhyo++++/::+/+/-:::///+sddddhs//+o+/ososyhhs+/.`
// `+hhyyyyyyyhddhs+///://///+ooo/::+o++osyhyyys+--+//o//oosyys++++:..``
// .sddhyhyyyhddyso++/::://////+syo/:osssssyhsssoooosoo//+ossssyssooooo+++:.
// .hdhhhhhhhhhysssssysssssssyyyhddso+soyhhhsssooosyyssso+syysoososoo/++osyo/
// -syyyyyyyyyyyyyyyyyyo/::----:shdsyo+yysyyyssssosyysos+/+++/+ooo++:/+/ooss/
// `........----..`` odhyyyhhsysoss++oysso++s/++++syys++/:::/:+sy-
// `ydyssyysyoyyo+sysyys++s+++++ooo+osss+/+++syy
// /dysyssoyyoo+oyyshss//:---:/++++oshhysooosyh`
// .dhhhyysyyys++yyyyss+--:::/:///oshddhhyo+osy`
// yddhhyyssy+//ssyyso/-:://+ooosyhddhsoo+/+so
// +ddhhyysss+osyyysss:::/oyyhhyhddddds+///oy/
// /dddhhyyyssysssssss+++ooyhdddddddhdyo///yyo
// /dddhyyyyyysssoo+/:-/oshhdddddddssdds+//sys
// +ddhhyyhhy/oo+/:::::+syhddddddds -hdyo++ohh`
// sddhhysyysoys/:::::osyhdddddddy` sdhsosohh:
// `dddddhhhhhhhyo:-/ossoshddddhhd- .ddyssohh/"