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package model
import (
"errors"
"io/fs"
"path/filepath"
"pik/identity"
"strings"
"sync"
)
func NewState(f fs.FS, locations []string, indexers []Indexer, runners []Runner) (*State, []error) {
var errs []error
st := &State{}
wg := sync.WaitGroup{}
var sources = make([]*Source, len(locations), len(locations))
for i, loc := range locations {
wg.Go(func() {
_, dirName := filepath.Split(strings.TrimSuffix(loc, "/"))
src := &Source{
Path: loc,
Identity: identity.New(dirName),
}
sources[i] = src
loc = strings.TrimSuffix(loc, "/")
loc = strings.TrimPrefix(loc, "/")
if loc == "" {
return
}
myWg := sync.WaitGroup{}
var targets = make([][]Target, len(indexers), len(indexers))
for ti, indexer := range indexers {
myWg.Go(func() {
s, err := fs.Sub(f, loc)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
errs = append(errs, err)
return
}
result, err := indexer.Index("/"+loc, s, runners)
if err != nil && !errors.Is(err, fs.ErrNotExist) {
errs = append(errs, err)
return
}
targets[ti] = result
})
}
myWg.Wait()
for _, t := range targets {
if t == nil {
continue
}
sources[i].Targets = append(sources[i].Targets, t...)
}
})
}
wg.Wait()
for _, s := range sources {
if s == nil || s.Targets == nil {
continue
}
st.Sources = append(st.Sources, s)
}
return st, errs
}
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