#!/bin/bash -u
#
# Copyright 2014 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
#
# (Re-)generates the expected stdout and stderr outputs for tests.
#
################################################################################

function gen_test_data() {
  local files="$@"
  if [[ -z "${files}" ]]; then
    files=testdata/*.in
  fi

  for input in ${files}; do
    local expected_out="${input%.in}.out"
    local expected_err="${input%.in}.err"

    # Run tests in a hermetic environment such that they don't break every year.
    env YEAR=2014 \
      bash -c "./autogen $(cat "${input}")" > "${expected_out}" 2> "${expected_err}"
  done
}

gen_test_data "$@"

#!/bin/bash -u
#
# Copyright 2014 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
################################################################################
#
# (Re-)generates the expected stdout and stderr outputs for tests.
#
################################################################################

function gen_test_data() {
  for input in testdata/*.in; do
    local expected_out="${input%.in}.out"
    local expected_err="${input%.in}.err"

    # Run tests in a hermetic environment such that they don't break every year.
    env YEAR=2014 \
      bash -c "./autogen $(cat "${input}")" > "${expected_out}" 2> "${expected_err}"
  done
}

gen_test_data

--- 
+++ 
@@ -21,7 +21,12 @@
 ################################################################################
 
 function gen_test_data() {
-  for input in testdata/*.in; do
+  local files="$@"
+  if [[ -z "${files}" ]]; then
+    files=testdata/*.in
+  fi
+
+  for input in ${files}; do
     local expected_out="${input%.in}.out"
     local expected_err="${input%.in}.err"
 
@@ -31,4 +36,4 @@
   done
 }
 
-gen_test_data
+gen_test_data "$@"
Add ability to regen output for specific files.
