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template.go
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template.go
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package main
import (
_ "embed"
"errors"
"fmt"
"os"
"regexp"
"sort"
"strings"
"text/template"
)
type TemplateType string
const (
ListTemplate = TemplateType("list")
TableTemplate = TemplateType("table")
creditText = "A list of awesome repositories I've starred. Want your own? Try: "
creditUrl = "https:/rverst/stargazer"
)
var availableFormats = []string{string(ListTemplate), string(TableTemplate)}
//go:embed list_template.md
var list string
//go:embed table_template.md
var table string
var temp *template.Template
type T struct {
Total int
WithToc bool
WithLicense bool
WithStars bool
WithBtt bool
Keys []string
Anchors map[string]string
Stars map[string][]Star
Credits C
}
type C struct {
Text string
Url string
Link string
}
func initTemplate(tType string) (err error) {
var t string
switch tType {
case "table":
t = table
case "list":
t = list
default:
if exists(tType) {
if b, err := os.ReadFile(tType); err != nil {
fmt.Printf("cannot read custom template: %s\n%v\n", tType, err)
} else {
t = string(b)
}
} else {
t = list
}
}
temp, err = template.New("readme").Parse(t)
return
}
func writeList(path string, stars map[string][]Star, total int, withToc, withLicense, withStars, withBtt bool) error {
if temp == nil {
return errors.New("template not initialized")
}
if exists(path) {
err := os.Remove(path)
if err != nil {
return err
}
}
f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, 0o665)
if err != nil {
return err
}
defer f.Close()
err = f.Truncate(0)
if err != nil {
return err
}
c := C{
Text: creditText,
Url: creditUrl,
Link: "[stargazer](" + creditUrl + ")",
}
keys := make([]string, 0)
for k := range stars {
keys = append(keys, k)
}
sort.Strings(keys)
return temp.Execute(f, T{
Keys: keys,
Anchors: toc(keys),
Stars: stars,
Total: total,
Credits: c,
WithToc: withToc,
WithLicense: withLicense,
WithStars: withStars,
WithBtt: withBtt,
})
}
// toc returns the anchors for the table of contents
func toc(keys []string) map[string]string {
rx := regexp.MustCompile(`[^\w\- ]`) // regexp to remove all punctuation
anchors := make(map[string]string, 0)
for _, k := range keys {
x := strings.ToLower(strings.TrimSpace(k))
x = rx.ReplaceAllString(x, "")
x = strings.ReplaceAll(x, " ", "-")
c := 0
for {
add := true
y := x
if c > 0 {
y += fmt.Sprintf("-%d", c)
}
for _, val := range anchors {
if val == y {
c++
add = false
break
}
}
if !add {
continue
}
anchors[k] = y
break
}
}
return anchors
}