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package main
import (
"errors"
"fmt"
"io"
"os"
"strings"
"unique"
"hakurei.app/internal/pkg"
"hakurei.app/internal/rosa"
)
// commandInfo implements the info subcommand.
func commandInfo(
cm *cache,
args []string,
w io.Writer,
writeStatus bool,
r *rosa.Report,
) (err error) {
if len(args) == 0 {
return errors.New("info requires at least 1 argument")
}
// recovered by HandleAccess
mustPrintln := func(a ...any) {
if _, _err := fmt.Fprintln(w, a...); _err != nil {
panic(_err)
}
}
mustPrint := func(a ...any) {
if _, _err := fmt.Fprint(w, a...); _err != nil {
panic(_err)
}
}
t := rosa.Native().Std()
for i, name := range args {
handle := rosa.ArtifactH(unique.Make(name))
if meta, a := t.Load(handle); meta == nil {
return fmt.Errorf("unknown artifact %q", name)
} else {
var suffix string
if meta.Version != rosa.Unversioned {
suffix += "-" + meta.Version
}
mustPrintln("name : " + name + suffix)
mustPrintln("description : " + meta.Description)
if meta.Website != "" {
mustPrintln("website : " +
strings.TrimSuffix(meta.Website, "/"))
}
if len(meta.Dependencies) > 0 {
mustPrint("depends on :")
for _, d := range meta.Dependencies {
_meta, _ := rosa.Native().Std().MustLoad(d)
s := _meta.Name
if _meta.Version != rosa.Unversioned {
s += "-" + _meta.Version
}
mustPrint(" " + s)
}
mustPrintln()
}
const statusPrefix = "status : "
if writeStatus {
if r == nil {
var f io.ReadSeekCloser
err = cm.Do(func(cache *pkg.Cache) (err error) {
f, err = cache.OpenStatus(a)
return
})
if err != nil {
if errors.Is(err, os.ErrNotExist) {
mustPrintln(
statusPrefix + "not yet cured",
)
} else {
return
}
} else {
mustPrint(statusPrefix)
_, err = io.Copy(w, f)
if err = errors.Join(err, f.Close()); err != nil {
return
}
}
} else if err = cm.Do(func(cache *pkg.Cache) (err error) {
status, n := r.ArtifactOf(cache.Ident(a))
if status == nil {
mustPrintln(
statusPrefix + "not in report",
)
} else {
mustPrintln("size :", n)
mustPrint(statusPrefix)
if _, err = w.Write(status); err != nil {
return
}
}
return
}); err != nil {
return
}
}
if i != len(args)-1 {
mustPrintln()
}
}
}
return nil
}
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