From 80d99cc8df6ecd5e0b630cb1b45526c003c20a3c Mon Sep 17 00:00:00 2001
From: yucheng <yuchengzhu@nuralogix.ai>
Date: Fri, 13 Sep 2019 16:01:36 -0400
Subject: [PATCH 1/2]  Added Resize functionality for the chuncked datasets

---
 h5d_dataset.go      | 17 ++++++++++++++
 h5d_dataset_test.go | 57 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)

diff --git a/h5d_dataset.go b/h5d_dataset.go
index 7bb8715..5ba2f2e 100644
--- a/h5d_dataset.go
+++ b/h5d_dataset.go
@@ -189,3 +189,20 @@ func (s *Dataset) Datatype() (*Datatype, error) {
 func (s *Dataset) hasIllegalGoPointer() bool {
 	return s.typ.hasIllegalGoPointer()
 }
+
+// Resize a dataset
+func (s *Dataset) Resize(dims []uint) error {
+	var c_dims *C.hsize_t
+	if dims == nil {
+		return fmt.Errorf("dims are nil")
+	}
+	rank := s.Space().SimpleExtentNDims()
+	if rank != len(dims) {
+		return fmt.Errorf("Resize can't change the rank of the dataset space")
+	}
+	c_dims = (*C.hsize_t)(unsafe.Pointer(&dims[0]))
+
+	rc := C.H5Dset_extent(s.id, c_dims)
+	err := h5err(rc)
+	return err
+}
diff --git a/h5d_dataset_test.go b/h5d_dataset_test.go
index 28e76dd..9c6adab 100644
--- a/h5d_dataset_test.go
+++ b/h5d_dataset_test.go
@@ -195,3 +195,60 @@ func TestSelectHyperslab(t *testing.T) {
 		t.Fatal(err)
 	}
 }
+
+func TestDatasetResize(t *testing.T) {
+	f, err := CreateFile(fname, F_ACC_TRUNC)
+	if err != nil {
+		t.Fatalf("CreateFile failed: %s", err)
+	}
+	defer os.Remove(fname)
+	defer f.Close()
+
+	dtype, err := NewDataTypeFromType(reflect.TypeOf(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+	initdims := []uint{4, 4}
+	maxdims := []uint{12, 4}
+	chunkDims := []uint{2, 4}
+	resizedDims := []uint{8, 4}
+	space, err := CreateSimpleDataspace(initdims, maxdims)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer space.Close()
+
+	dcpl, err := NewPropList(P_DATASET_CREATE)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer dcpl.Close()
+	err = dcpl.SetChunk(chunkDims)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dset, err := f.CreateDatasetWith("dsetchunked", dtype, space, dcpl)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer dset.Close()
+
+	dimsGot, maxdimsGot, err := dset.Space().SimpleExtentDims()
+	if !reflect.DeepEqual(dimsGot, initdims) || !reflect.DeepEqual(maxdimsGot, maxdims) {
+		t.Fatal("Dimension not correct when creating chunked dataset")
+	}
+	if err != nil {
+		t.Fatal(err)
+	}
+	err = dset.Resize(resizedDims)
+	if err != nil {
+		t.Fatal(err)
+	}
+	dimsGot, maxdimsGot, err = dset.Space().SimpleExtentDims()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !reflect.DeepEqual(dimsGot, resizedDims) || !reflect.DeepEqual(maxdimsGot, maxdims) {
+		t.Fatal("Resized dimension not as expected")
+	}
+}

From 697e7f23cd6f8e205e50e860c624a74fd0aa3472 Mon Sep 17 00:00:00 2001
From: Dan Kortschak <dan@kortschak.io>
Date: Wed, 18 Sep 2019 08:02:42 +0930
Subject: [PATCH 2/2] golangci: install libhdf5 dependency

---
 .golangci.yml | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 .golangci.yml

diff --git a/.golangci.yml b/.golangci.yml
new file mode 100644
index 0000000..b7679c8
--- /dev/null
+++ b/.golangci.yml
@@ -0,0 +1,3 @@
+service:
+  prepare:
+    - apt-get update && apt-get install -y libhdf5-serial-dev