Adding benchmark run to the CI

Author: datapythonista

asv_bench/benchmarks/algorithms.py

@@ -1,7 +1,8 @@
 import warnings
 from importlib import import_module
 
-import numpy as np
+# making the benchmarks fail, to see if this is detected by the CI:
+# import numpy as np
 import pandas as pd
 from pandas.util import testing as tm
 

azure-pipelines.yml

@@ -144,3 +144,22 @@ jobs:
     condition: true
     env:
       REPO_DIR: $(Build.ArtifactStagingDirectory)/pandas-docs-travis
+
+  - script: |
+      export PATH=$HOME/miniconda3/bin:$PATH
+      source activate pandas-dev
+      if git diff upstream/master --name-only | grep -q "^asv_bench/"; then
+          cd asv_bench
+          ASV_ERRORS=$(asv dev > /dev/null)
+          if [[ $ASV_ERRORS ]]; then
+              echo "Benchmarks reported errors:"
+              echo $ASV_ERRORS
+              exit 1
+          else
+              echo "Benchmark run without errors"
+          fi
+      else
+          echo "Benchmark not running, no changes detected"
+      fi
+    displayName: 'Running benchmarks'
+    condition: true

environment.yml

@@ -10,6 +10,7 @@ dependencies:
   - pytz
 
   # development
+  - asv
   - Cython>=0.28.2
   - flake8
   - flake8-comprehensions