stefanoj3 /
dirstalk
| Total Lines | 63 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
| 1 | package producer |
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| 2 | |||
| 3 | import ( |
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| 4 | "context" |
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| 5 | "sync" |
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| 6 | |||
| 7 | "github.com/stefanoj3/dirstalk/pkg/common/urlpath" |
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| 8 | "github.com/stefanoj3/dirstalk/pkg/scan" |
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| 9 | ) |
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| 10 | |||
| 11 | const defaultChannelBuffer = 25 |
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| 12 | |||
| 13 | func NewReProducer( |
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| 14 | producer scan.Producer, |
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| 15 | ) *ReProducer { |
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| 16 | return &ReProducer{producer: producer} |
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| 17 | } |
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| 18 | |||
| 19 | type ReProducer struct { |
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| 20 | producer scan.Producer |
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| 21 | } |
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| 22 | |||
| 23 | // Reproduce will check if it is possible to go deeper on the result provided, if so will. |
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| 24 | func (r *ReProducer) Reproduce(ctx context.Context) func(r scan.Result) <-chan scan.Target { |
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| 25 | return r.buildReproducer(ctx) |
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| 26 | } |
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| 27 | |||
| 28 | func (r *ReProducer) buildReproducer(ctx context.Context) func(result scan.Result) <-chan scan.Target { |
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| 29 | resultRegistry := sync.Map{} |
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| 30 | |||
| 31 | return func(result scan.Result) <-chan scan.Target { |
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| 32 | resultChannel := make(chan scan.Target, defaultChannelBuffer) |
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| 33 | |||
| 34 | go func() { |
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| 35 | defer close(resultChannel) |
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| 36 | |||
| 37 | if result.Target.Depth <= 0 { |
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| 38 | return |
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| 39 | } |
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| 40 | |||
| 41 | // no point in appending to a filename |
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| 42 | if urlpath.HasExtension(result.Target.Path) { |
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| 43 | return |
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| 44 | } |
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| 45 | |||
| 46 | _, inRegistry := resultRegistry.Load(result.Target.Path) |
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| 47 | if inRegistry { |
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| 48 | return |
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| 49 | } |
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| 50 | |||
| 51 | resultRegistry.Store(result.Target.Path, nil) |
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| 52 | |||
| 53 | for target := range r.producer.Produce(ctx) { |
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| 54 | newTarget := result.Target |
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| 55 | newTarget.Depth-- |
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| 56 | newTarget.Path = urlpath.Join(newTarget.Path, target.Path) |
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| 57 | newTarget.Method = target.Method |
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| 58 | |||
| 59 | resultChannel <- newTarget |
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| 60 | } |
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| 61 | }() |
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| 62 | |||
| 63 | return resultChannel |
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| 64 | } |
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| 66 |
