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// gomuks - A terminal Matrix client written in Go.
// Copyright (C) 2018 Tulir Asokan
//
// This program 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.
//
// 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package debug
import (
"fmt"
"io/ioutil"
"os"
"time"
"runtime/debug"
"maunium.net/go/tview"
)
type Printer interface {
Printf(text string, args ...interface{})
Print(text ...interface{})
}
type Pane struct {
*tview.TextView
Height int
Width int
num int
}
var Default Printer
var RedirectAllExt bool
func NewPane() *Pane {
pane := tview.NewTextView()
pane.
SetScrollable(true).
SetWrap(true).
SetBorder(true).
SetTitle("Debug output")
fmt.Fprintln(pane, "[0] Debug pane initialized")
return &Pane{
TextView: pane,
Height: 35,
Width: 80,
num: 0,
}
}
func (db *Pane) Printf(text string, args ...interface{}) {
db.WriteString(fmt.Sprintf(text, args...) + "\n")
}
func (db *Pane) Print(text ...interface{}) {
db.WriteString(fmt.Sprintln(text...))
}
func (db *Pane) WriteString(text string) {
db.num++
fmt.Fprintf(db, "[%d] %s", db.num, text)
}
type PaneSide int
const (
Top PaneSide = iota
Bottom
Left
Right
)
func (db *Pane) Wrap(main tview.Primitive, side PaneSide) tview.Primitive {
rows, columns := []int{0}, []int{0}
mainRow, mainColumn, paneRow, paneColumn := 0, 0, 0, 0
switch side {
case Top:
rows = []int{db.Height, 0}
mainRow = 1
case Bottom:
rows = []int{0, db.Height}
paneRow = 1
case Left:
columns = []int{db.Width, 0}
mainColumn = 1
case Right:
columns = []int{0, db.Width}
paneColumn = 1
}
return tview.NewGrid().SetRows(rows...).SetColumns(columns...).
AddItem(main, mainRow, mainColumn, 1, 1, 1, 1, true).
AddItem(db, paneRow, paneColumn, 1, 1, 1, 1, false)
}
func Printf(text string, args ...interface{}) {
if RedirectAllExt {
ExtPrintf(text, args...)
} else if Default != nil {
Default.Printf(text, args...)
}
}
func Print(text ...interface{}) {
if RedirectAllExt {
ExtPrint(text...)
} else if Default != nil {
Default.Print(text...)
}
}
const Oops = ` __________
< Oh noes! >
‾‾‾\‾‾‾‾‾‾
\ ^__^
\ (XX)\_______
(__)\ )\/\
U ||----W |
|| ||`
func PrettyPanic() {
fmt.Println(Oops)
fmt.Println("")
fmt.Println("A fatal error has occurred.")
fmt.Println("")
traceFile := fmt.Sprintf("/tmp/gomuks-panic-%s.txt", time.Now().Format("2006-01-02--15-04-05"))
data := debug.Stack()
err := ioutil.WriteFile(traceFile, data, 0644)
if err != nil {
fmt.Println("Saving the stack trace to", traceFile, "failed:")
fmt.Println("--------------------------------------------------------------------------------")
fmt.Println(err)
fmt.Println("--------------------------------------------------------------------------------")
fmt.Println("")
fmt.Println("You can file an issue at https://github.com/tulir/gomuks/issues.")
fmt.Println("Please provide the file save error (above) and the stack trace of the original error (below) when filing an issue.")
fmt.Println("")
fmt.Println("--------------------------------------------------------------------------------")
debug.PrintStack()
fmt.Println("--------------------------------------------------------------------------------")
} else {
fmt.Println("The stack trace has been saved to", traceFile)
fmt.Println("")
fmt.Println("You can file an issue at https://github.com/tulir/gomuks/issues.")
fmt.Println("Please provide the contents of that file when filing an issue.")
}
os.Exit(1)
}
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