Added the script which I use to compare results of conversion from two versions

Author: yarikoptic

test-compare-two-versions.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+# A script which is for now very ad-hoc and to be ran outside of this codebase and
+# assumes having two repos of heudiconv -- one under heudiconv and another heudiconv-master
+# with virtualenvs setup inside under venvs/dev.
+# Was used for https://github.com/nipy/heudiconv/pull/129
+
+PS1=+
+set -eu
+
+outdir=${OUTDIR:=compare-versions/$(basename $1)}
+
+RUN=echo
+RUN=
+
+#if [ -e $outdir ]; then
+#   # just fail if exists already
+#   echo "$outdir exists already -- remove if you want to run the comparison" >&2
+#   exit 1
+#fi
+
+mkdir -p $outdir
+
+function run() {
+   heudiconvdir="$1"
+   out=$outdir/$2
+   shift
+   shift
+   source $heudiconvdir/venvs/dev/bin/activate
+   whichheudiconv=$(which heudiconv)
+
+   # just do full conversion
+   echo "Running $whichheudiconv with log in $out.log"
+   $RUN heudiconv --random-seed 1 -f $heudiconvdir/heuristics/dbic_bids.py -c dcm2niix -o $out --datalad --bids "$@" >| $out.log 2>&1
+}
+
+run heudiconv rolando "$@"
+run heudiconv-master master --files "$@"
+
+cd $outdir
+#git remote add rolando "$outdir/rolando"
+#git fetch rolando
+# git diff --stat rolando/master..
+if diff  -Naur --exclude=.git --ignore-matching-lines='^\s*id\s*=.*' rolando master >| diff.patch; then
+    echo "Results are identical"
+else
+    echo "Results differ: $PWD/diff.patch"
+    cat diff.patch | diffstat
+fi
+