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builder.go
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/
builder.go
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package gintemplater
import (
"fmt"
"log"
"os"
"strings"
)
type templaterBuilder struct {
logger *log.Logger
inputDir string
outputDir string
}
func (b *templaterBuilder) initBuild() {
b.prepareOutputDir()
var stack []string
stack = append(stack, b.inputDir)
for len(stack) > 0 {
current := stack[len(stack)-1]
stack = stack[:len(stack)-1]
file, err := os.Open(current)
if err != nil {
b.logger.Fatalln(err)
}
defer file.Close()
fileInfos, err := file.Readdir(0)
if err != nil {
b.logger.Fatalln(err)
}
for _, fileInfo := range fileInfos {
currentPath := fmt.Sprintf("%s/%s", current, fileInfo.Name())
if fileInfo.IsDir() {
stack = append(stack, currentPath)
} else {
b.generate(currentPath)
}
}
}
}
func (b *templaterBuilder) prepareOutputDir() {
if err := os.MkdirAll(b.outputDir, 0666); err != nil {
b.logger.Fatalln(err)
}
}
func (b *templaterBuilder) generate(path string) {
buildPath := path[len(b.inputDir)+1:]
buildName := strings.ReplaceAll(buildPath, "/", ".")
linkName := fmt.Sprintf("%s/%s", b.outputDir, buildName)
os.Link(path, linkName)
}
func newTemplaterBuilder(inputDir, outputDir string, logger *log.Logger) *templaterBuilder {
instance := new(templaterBuilder)
instance.inputDir = inputDir
instance.outputDir = outputDir
instance.logger = logger
return instance
}