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feat(transform): execute transformations with skylark langauge
HO SNAP IT EFFING WORKS
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| Original file line number | Diff line number | Diff line change |
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|---|---|---|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| {"data":{"peername":"peer","profileID":"QmZePf5LeXow3RW5U1AgEiNbW46YnRGhZ7HPvm1UmPFPwt","name":"family_relationships","path":"/map/QmRvu8tNk1ChFmhpczooykvAM4BCLCb4Ss55orpyWYBcoA","dataset":{"commit":{"path":"/map/QmT6ypopcWyjNXRBrFD7kocyh6JoCfoqPVSTm96FJNhHZo","qri":"cm:0","signature":"jAYxX3k/1sCYtEDzvIl9C07cW51o/jfHVI8Q9pEzDghMjGq9XXsZ4Sn2ClBLoJqEPDYLAyEYw/NwQ7yX4vNkTXBsvLHYj/JkRrfQ2O8fOqXaotj/nb2E4IE5HizHvTMV8+S6OyeLu+b2iiYMeB1zFmQlwxBeMyvsHrsFJd+CLQmXJUizaXUYv0h2Z2P/x4+8jBn8SdWFSjvNJ2H1UmDDwRuLnBUofoTsQBe7jFwXWhT83jN0R3eAafmOiWxZ00/rYytLCztk7R/GFMUkCK4gtEs30JWJAr+xE5suPra20c60aTvz0ALFnwnxt/HuJ/z4iaJVaRPrQSE0kGNRNprKmQ==","timestamp":"2001-01-01T01:01:01.000000001Z","title":"created dataset"},"dataPath":"/map/QmXGZq5E3HmHzNHuoF9bHuCNaBSxpVtazPbCAQMcMnQqAG","meta":{"accrualPeriodicity":"R/P1W","downloadPath":"http://insight.dev.schoolwires.com/HelpAssets/C2Assets/C2Files/C2ImportFamRelSample.csv","qri":"md:0"},"path":"/map/QmRvu8tNk1ChFmhpczooykvAM4BCLCb4Ss55orpyWYBcoA","qri":"ds:0","structure":{"checksum":"QmXGZq5E3HmHzNHuoF9bHuCNaBSxpVtazPbCAQMcMnQqAG","errCount":0,"entries":2,"format":"csv","formatConfig":{"headerRow":true},"length":60,"path":"/map/QmeZTVqjXK4ypanPMKd5F84yFKBhMtcqCBhFWkyS8VjUD7","qri":"st:0","schema":{"items":{"items":[{"title":"parent_identifier","type":"integer"},{"title":"student_identifier","type":"integer"}],"type":"array"},"type":"array"}}}},"meta":{"code":200}} | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package actions | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
|
|
||
| "github.com/qri-io/cafs" | ||
| "github.com/qri-io/dataset" | ||
| "github.com/qri-io/dataset/dsio" | ||
| "github.com/qri-io/qri/repo" | ||
| "github.com/qri-io/skytf" | ||
| ) | ||
|
|
||
| // ExecTransform executes a designated transformation | ||
| func (act Dataset) ExecTransform(ds *dataset.Dataset, filepath string) (file cafs.File, err error) { | ||
| rr, err := skytf.ExecFile(ds, filepath) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| st := &dataset.Structure{ | ||
| Format: dataset.JSONDataFormat, | ||
| Schema: ds.Structure.Schema, | ||
| } | ||
|
|
||
| buf, err := dsio.NewEntryBuffer(st) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("error allocating result buffer: %s", err) | ||
| } | ||
|
|
||
| for { | ||
| val, err := rr.ReadEntry() | ||
| if err != nil { | ||
| if err.Error() == "EOF" { | ||
| err = nil | ||
| break | ||
| } | ||
| return nil, fmt.Errorf("row iteration error: %s", err.Error()) | ||
| } | ||
| if err := buf.WriteEntry(val); err != nil { | ||
| return nil, fmt.Errorf("error writing value to buffer: %s", err.Error()) | ||
| } | ||
| } | ||
|
|
||
| if err := buf.Close(); err != nil { | ||
| return nil, fmt.Errorf("error closing row buffer: %s", err.Error()) | ||
| } | ||
|
|
||
| // Add skylark file to store | ||
| f, err := os.Open(filepath) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // TODO - currently this is just pinning to the repo, this should *not* be pinned, | ||
| // instead it should be added to the dataset merkleDAG | ||
| tfPath, err := act.Repo.Store().Put(cafs.NewMemfileReader("transform.sky", f), true) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| // TODO - clean up events to handle this situation | ||
| ref := repo.DatasetRef{ | ||
| Dataset: &dataset.DatasetPod{ | ||
| Transform: &dataset.TransformPod{ | ||
| Syntax: "skylark", | ||
| Data: tfPath.String(), | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
| if err = act.LogEvent(repo.ETTransformExecuted, ref); err != nil { | ||
| return | ||
| } | ||
|
|
||
| fmt.Println(string(buf.Bytes())) | ||
|
|
||
| ds.Structure = st | ||
| ds.Transform.Data = tfPath.String() | ||
| return cafs.NewMemfileBytes(fmt.Sprintf("data.%s", st.Format.String()), buf.Bytes()), nil | ||
| } |
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