Script to run benchmarks from freshly-cloned repo

The intention is to run this in a cron job / scheduled task.

build/runbenchmarks.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+
+set -e
+
+if [[ "$3" = "" ]]
+then
+  echo "Usage: runbenchmarks.sh <repo-directory> <results-directory> <target-framework> [target-framework...]"
+  echo "e.g. runbenchmarks.sj benchmark-tmp benchmark-results netcoreapp1.1 net45"
+  exit 1
+fi
+
+declare -r REPO=$1
+declare -r RESULTS=$(realpath $2)
+
+shift 2
+
+rm -rf $REPO
+git clone https://github.com/nodatime/nodatime.git $REPO --depth=1
+
+declare -r COMMIT=$(git -C $REPO rev-parse HEAD)
+
+if [[ -d $RESULTS/$COMMIT ]]
+then
+  echo "Benchmarks for commit $COMMIT already run. Exiting."
+  exit 0
+fi
+
+cd $REPO/src
+dotnet restore NodaTime-All.sln
+cd NodaTime.Benchmarks
+
+while (( "$#" ))
+do
+  TARGET_FRAMEWORK=$1
+  OUTPUT=$RESULTS/$COMMIT/$TARGET_FRAMEWORK
+  mkdir -p $OUTPUT
+  echo "Running benchmarks for $TARGET_FRAMEWORK"
+  rm -rf BenchmarkDotNet.Artifacts
+  date -u -Iseconds > $OUTPUT/start.txt
+  dotnet run -f $TARGET_FRAMEWORK -c Release -- --exporter=briefjson '*'
+  date -u -Iseconds > $OUTPUT/end.txt
+  for report in BenchmarkDotNet.Artifacts/results/*-report-brief.json
+  do
+    basereport=$(basename $report)
+    cp $report $OUTPUT/${basereport/-report-brief/}
+  done
+  shift
+done