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package parser
import (
"strconv"
"strings"
"time"
)
type (
// https://wiki.alpinelinux.org/wiki/Apk_spec
Entry struct {
Checksum string // C
Version string // V
Name string // P
Architecture *string // A
PackageSize int // S
InstalledSize int // I
Description string // T
Url string // U
License string // L
Origin *string // o
Maintainer *string // m
BuildTime *time.Time // t
Commit *string // c
ProviderPriority *int // k
Dependencies []string // D
Provides []string // p
InstallIf []string // i
}
)
func ptr[T any](v T) *T {
return &v
}
func split(line string) (string, string) {
parts := strings.SplitN(line, ":", 2)
return parts[0], parts[1]
}
func toInt(v string) int {
i, _ := strconv.Atoi(v)
return i
}
func Parse(lines []string) *Entry {
entry := &Entry{}
for _, line := range lines {
r, c := split(line)
switch r {
case "C":
entry.Checksum = c
case "V":
entry.Version = c
case "P":
entry.Name = c
case "A":
entry.Architecture = &c
case "S":
entry.PackageSize = toInt(c)
case "I":
entry.InstalledSize = toInt(c)
case "T":
entry.Description = c
case "U":
entry.Url = c
case "L":
entry.License = c
case "o":
entry.Origin = &c
case "m":
entry.Maintainer = &c
case "t":
entry.BuildTime = ptr(time.Unix(int64(toInt(c)), 0))
case "c":
entry.Commit = &c
case "k":
entry.ProviderPriority = ptr(toInt(c))
case "D":
entry.Dependencies = strings.Split(c, " ")
case "p":
entry.Dependencies = strings.Split(c, " ")
case "i":
entry.Dependencies = strings.Split(c, " ")
}
}
return entry
}
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