Merge pull request #97 from danw/file_func

Implement the `file` function to read and write files

3 files changed, 167 insertions, 0 deletions

diff --git a/testcase/file_func.sh b/testcase/file_func.sh
new file mode 100755
index 0000000..72935dc
--- /dev/null
+++ b/testcase/file_func.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+#
+# Copyright 2016 Google Inc. All rights reserved
+#
+# 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.
+
+set -e
+
+mk="$@"
+
+echo "PASS" >testfile
+
+cat <<EOF > Makefile
+ifdef KATI
+SUPPORTS_FILE := 1
+endif
+ifneq (,\$(filter 4.2%,\$(MAKE_VERSION)))
+SUPPORTS_FILE := 1
+endif
+
+ifdef SUPPORTS_FILE
+  \$(file >testwrite,PASS)
+  \$(info Read not found: \$(if \$(file <notfound),FAIL,PASS))
+  \$(info Read: \$(file < testfile))
+  \$(info Read back: \$(file <testwrite))
+else
+  # Make <4 does not support \$(file ...)
+  \$(info Read not found: PASS)
+  \$(info Read: PASS)
+  \$(info Read back: PASS)
+endif
+
+.PHONY: all
+all:
+EOF
+
+${mk} 2>&1
diff --git a/testcase/ninja_regen_filefunc_read.sh b/testcase/ninja_regen_filefunc_read.sh
new file mode 100755
index 0000000..7fc3a9f
--- /dev/null
+++ b/testcase/ninja_regen_filefunc_read.sh
@@ -0,0 +1,74 @@
+#!/bin/sh
+#
+# Copyright 2016 Google Inc. All rights reserved
+#
+# 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.
+
+set -e
+
+log=/tmp/log
+mk="$@"
+
+sleep_if_necessary() {
+  if [ x$(uname) != x"Linux" -o x"${TRAVIS}" != x"" ]; then
+    sleep "$@"
+  fi
+}
+
+cat <<EOF > Makefile
+A := \$(file <file_a)
+all:
+	echo foo
+EOF
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  ./ninja.sh
+fi
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if grep regenerating ${log}; then
+    echo 'Should not be regenerated'
+  fi
+  ./ninja.sh
+fi
+
+echo regen >file_a
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if ! grep regenerating ${log} >/dev/null; then
+    echo 'Should be regenerated'
+  fi
+  ./ninja.sh
+fi
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if grep regenerating ${log}; then
+    echo 'Should not be regenerated'
+  fi
+  ./ninja.sh
+fi
+
+sleep_if_necessary 1
+echo regen >>file_a
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if ! grep regenerating ${log} >/dev/null; then
+    echo 'Should be regenerated'
+  fi
+  ./ninja.sh
+fi
diff --git a/testcase/ninja_regen_filefunc_write.sh b/testcase/ninja_regen_filefunc_write.sh
new file mode 100755
index 0000000..cb438cc
--- /dev/null
+++ b/testcase/ninja_regen_filefunc_write.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+#
+# Copyright 2016 Google Inc. All rights reserved
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http:#www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e
+
+log=/tmp/log
+mk="$@"
+
+cat <<EOF > Makefile
+\$(file >file_a,test)
+all:
+	echo foo
+EOF
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if [ ! -f file_a ]; then
+    echo 'file_a does not exist'
+  fi
+  ./ninja.sh
+  rm file_a
+fi
+
+${mk} 2> ${log}
+if [ -e ninja.sh ]; then
+  if grep regenerating ${log}; then
+    echo 'Should not be regenerated'
+  fi
+  if [ ! -f file_a ]; then
+    echo 'file_a does not exist'
+  fi
+  ./ninja.sh
+fi