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-rw-r--r--bin/decode-dist19
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diff --git a/bin/decode-dist b/bin/decode-dist
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+#!/bin/bash
+#
+# Decode a distribution from summed RAPPOR reports.
+#
+# This is a tiny shell wrapper around R.
+
+readonly THIS_DIR=$(dirname $0)
+
+# NOTE: A trailing / is *required* on RAPPOR_REPO, because we use string
+# concatenation to form the absolute path. (file.path() in R doesn't do what
+# we want.)
+
+readonly RAPPOR_REPO=$THIS_DIR/../
+
+# RAPPOR_REPO is used by source() statements to find .R files.
+export RAPPOR_REPO
+
+# Make sure to reuse the same process so it can be killed easily.
+exec $THIS_DIR/decode_dist.R "$@"