[Dev] Create canonical dev conda environment. (#5278)

* create_dev_conda_env

* fix

* polish

* nlabla

* cleanup

* more

* add_more

* polish

---------
Co-authored-by: Steve <ubuntu@ip-172-31-34-29.ap-northeast-1.compute.internal>

script/create_dev_conda_env.sh

+#!/bin/bash
+
+CUDA_VERSIONS="10.2,11.3,11.6,11.7"
+TORCH_VERSION="1.12.0"
+
+usage() {
+cat << EOF
+usage: bash $0 OPTIONS
+examples:
+  bash $0 -c
+  bash $0 -g 11.7
+
+Created a developement environment for DGL developers.
+
+OPTIONS:
+  -h           Show this message.
+  -c           Create dev environment in CPU mode.
+  -g           Create dev environment in GPU mode with specified CUDA version,
+               supported: $CUDA_VERSIONS.
+EOF
+}
+
+validate() {
+  values=$(echo "$1" | tr "," "\n")
+  for value in $values
+  do
+    if [[ "$value" == $2 ]]; then
+      return 0
+    fi
+  done
+  return 1
+}
+
+confirm() {
+  echo "Continue? [yes/no]:"
+  read confirm
+  if [[ ! $confirm == "yes" ]]; then
+    exit 0
+  fi
+}
+
+# Parsing flags.
+while getopts "cg:h" flag; do
+  if [[ $flag == "c" ]]; then
+    cpu=1
+  elif [[ $flag == "g" ]]; then
+    gpu=$OPTARG
+  elif [[ $flag == "h" ]]; then
+    usage
+    exit 0
+  else
+    usage
+    exit 1
+  fi
+done
+
+if [[ -n $gpu && $cpu -eq 1 ]]; then
+  echo "Only one mode can be specified."
+  exit 1
+fi
+
+if [[ -z $gpu && -z $cpu ]]; then
+  usage
+  exit 1
+fi
+
+# Set up CPU mode.
+if [[ $cpu -eq 1 ]]; then
+  torchversion=${TORCH_VERSION}"+cpu"
+  name="dgl-dev-cpu"
+fi
+
+# Set up GPU mode.
+if [[ -n $gpu ]]; then
+  if ! validate ${CUDA_VERSIONS} ${gpu}; then
+    echo "Error: Invalid CUDA version."
+    usage
+    exit 1
+  fi
+
+  echo "Confirm the installed CUDA version matches the specified one."
+  confirm
+
+  torchversion=${TORCH_VERSION}"+cu"${gpu//[-._]/}
+  name="dgl-dev-gpu"
+fi
+
+echo "Confirm you are excuting the script from your DGL root directory."
+echo "Current working directory: $PWD"
+confirm
+
+# Prepare the conda environment yaml file.
+rand=$(echo "$RANDOM" | md5sum | head -c 20)
+mkdir -p /tmp/$rand
+cp script/dgl_dev.yml.template /tmp/$rand/dgl_dev.yml
+sed -i "s|__NAME__|$name|g" /tmp/$rand/dgl_dev.yml
+sed -i "s|__TORCH_VERSION__|$torchversion|g" /tmp/$rand/dgl_dev.yml
+sed -i "s|__DGL_HOME__|$PWD|g" /tmp/$rand/dgl_dev.yml
+
+# Ask for final confirmation.
+echo "--------------------------------------------------"
+cat /tmp/$rand/dgl_dev.yml
+echo "--------------------------------------------------"
+echo "Create a conda enviroment with the config?"
+confirm
+
+# Create conda environment.
+conda env create -f /tmp/$rand/dgl_dev.yml
+
+# Clean up created tmp conda environment yaml file.
+rm -rf /tmp/$rand
+exit 0

script/dgl_dev.yml.template

+name: __NAME__
+dependencies:
+  - python=3.7.0
+  - pip
+  - pip:
+    - --find-links https://download.pytorch.org/whl/torch_stable.html
+    - cython
+    - filelock
+    - matplotlib
+    - networkx
+    - nltk
+    - nose
+    - numpy
+    - ogb
+    - pandas
+    - psutil
+    - pyarrow
+    - pydantic
+    - pytest
+    - pyyaml
+    - rdflib
+    - requests[security]
+    - scikit-learn
+    - scipy
+    - torch==__TORCH_VERSION__
+    - torchmetrics
+    - tqdm
+variables:
+  DGL_HOME: __DGL_HOME__