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main.go
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main.go
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package main
import (
"bytes"
"flag"
"fmt"
"goats-html/examples/common_html"
"goats-html/examples/data"
"goats-html/examples/shelf_view_html"
"goats-html/goats/runtime"
"log"
"os"
goruntime "runtime"
"runtime/pprof"
"time"
)
var cpuprofile = flag.String("cpuprofile", "", "Write cpu profile to file")
var benchmark = flag.Bool("benchmark", false, "Benchmark template speed")
var smallOnly = flag.Bool("small", false, "Only run small template")
var largeOnly = flag.Bool("large", false, "Only run large template")
var shelf *data.Shelf
var N = 1000000
var done chan bool
func init() {
goruntime.GOMAXPROCS(goruntime.NumCPU())
flag.Parse()
shelf = data.NewBookShelf()
runtime.InitGoats(nil)
done = make(chan bool)
}
func main() {
if *cpuprofile != "" {
f, err := os.Create(*cpuprofile)
if err != nil {
log.Fatal(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
if *benchmark {
startTime := time.Now()
var n int
if !*smallOnly {
n++
go benchmarkShelfViews()
} else if !*largeOnly {
n++
go benchmarkBookCards()
}
for i := 0; i < n*goruntime.GOMAXPROCS(0); i++ {
<-done
fmt.Println(i)
}
duration := time.Now().Sub(startTime).Seconds()
fmt.Println("Duration:", duration, "seconds")
} else {
renderShelfView()
renderBookCard()
}
}
func renderShelfView() {
args := &shelf_view_html.ShelfViewTemplateArgs{
Shelf: shelf,
}
settings := runtime.TemplateSettings{
OmitDocType: false,
}
var buffer bytes.Buffer
template := shelf_view_html.NewShelfViewTemplate(&buffer, &settings)
err := template.Render(args)
if err == nil {
if !*benchmark {
fmt.Println("Generated html: ", buffer.String())
}
} else {
fmt.Println("Failed to render template. ", err)
}
if !*benchmark {
fmt.Println()
}
}
func benchmarkShelfView() {
for i := 0; i < N/goruntime.GOMAXPROCS(0); i++ {
renderShelfView()
}
done <- true
}
func benchmarkShelfViews() {
fmt.Println("\nBenchmark large template...\n")
for i := 0; i < goruntime.GOMAXPROCS(0); i++ {
go benchmarkShelfView()
}
}
func renderBookCard() {
args := &common_html.BookCardTemplateArgs{
Book: shelf.Books[0],
Loopvar: &runtime.LoopVar{Counter: 1},
}
settings := runtime.TemplateSettings{
OmitDocType: false,
}
var buffer bytes.Buffer
template := common_html.NewBookCardTemplate(&buffer, &settings)
err := template.Render(args)
if err == nil {
if !*benchmark {
fmt.Println("Generated html: ", buffer.String())
}
} else {
fmt.Println("Failed to render template. ", err)
}
}
func benchmarkBookCard() {
for i := 0; i < N/goruntime.GOMAXPROCS(0); i++ {
renderBookCard()
}
done <- true
}
func benchmarkBookCards() {
fmt.Println("\nBenchmark small template...\n")
for i := 0; i < goruntime.GOMAXPROCS(0); i++ {
go benchmarkBookCard()
}
}