stu1130 commented on a change in pull request #13907: Fixes downloading of data
in cpp-package/example/get_data.sh
URL: https://github.com/apache/incubator-mxnet/pull/13907#discussion_r248417115
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File path: cpp-package/example/get_data.sh
##########
@@ -14,28 +15,29 @@
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
+set -euo pipefail
+
unameOut="$(uname -s)"
case "${unameOut}" in
- Linux*) CMD='wget';;
- Darwin*) CMD='curl -o';;
- CYGWIN*) CMD='wget';;
- MINGW*) CMD='wget';;
+ Linux*) CMD='wget -q';;
+ Darwin*) CMD='curl -sO';;
+ CYGWIN*) CMD='wget -q';;
+ MINGW*) CMD='wget -q';;
*) CMD=""
esac
-if [ ! -d "./data" ]; then
- mkdir data
-fi
-
+mkdir -p data
if [ ! -d "./data/mnist_data" ]; then
- mkdir ./data/mnist_data
-
- (cd data/mnist_data; $CMD train-images-idx3-ubyte.gz
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-images-idx3-ubyte.gz)
- (cd data/mnist_data; $CMD train-labels-idx1-ubyte.gz
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-labels-idx1-ubyte.gz)
- (cd data/mnist_data; $CMD t10k-images-idx3-ubyte.gz
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-images-idx3-ubyte.gz)
- (cd data/mnist_data; $CMD t10k-labels-idx1-ubyte.gz
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-labels-idx1-ubyte.gz)
- (cd data/mnist_data; $CMD mnist_train.csv.gz
http://data.mxnet.io/data/mnist_train.csv.gz)
- (cd data/mnist_data; gzip -d *.gz)
+ mkdir ./data/mnist_data
+ pushd .
+ cd data/mnist_data
+ $CMD
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-images-idx3-ubyte.gz
+ $CMD
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/train-labels-idx1-ubyte.gz
+ $CMD
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-images-idx3-ubyte.gz
+ $CMD
https://apache-mxnet.s3-accelerate.dualstack.amazonaws.com/gluon/dataset/mnist/t10k-labels-idx1-ubyte.gz
+ $CMD http://data.mxnet.io/data/mnist_train.csv.gz
+ gzip -d *.gz
+ popd
Review comment:
in this case, we only jump between two path
use `cd -` would be enough IMO
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