1 files changed, 44 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui/update-references.sh b/src/tools/clippy/tests/ui/update-references.sh
new file mode 100755
index 00000000000..2c13c327d79
--- /dev/null
+++ b/src/tools/clippy/tests/ui/update-references.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+# A script to update the references for particular tests. The idea is
+# that you do a run, which will generate files in the build directory
+# containing the (normalized) actual output of the compiler. This
+# script will then copy that output and replace the "expected output"
+# files. You can then commit the changes.
+#
+# If you find yourself manually editing a `foo.stderr` file, you're
+# doing it wrong.
+
+if [[ "$1" == "--help" || "$1" == "-h" || "$1" == "" || "$2" == "" ]]; then
+    echo "usage: $0 <build-directory> <relative-path-to-rs-files>"
+    echo ""
+    echo "For example:"
+    echo "   $0 ../../../build/x86_64-apple-darwin/test/ui *.rs */*.rs"
+fi
+
+MYDIR=$(dirname "$0")
+
+BUILD_DIR="$1"
+shift
+
+while [[ "$1" != "" ]]; do
+    STDERR_NAME="${1/%.rs/.stderr}"
+    STDOUT_NAME="${1/%.rs/.stdout}"
+    FIXED_NAME="${1/%.rs/.fixed}"
+    shift
+    if [[ -f "$BUILD_DIR"/"$STDOUT_NAME" ]] && \
+           ! (cmp -s -- "$BUILD_DIR"/"$STDOUT_NAME" "$MYDIR"/"$STDOUT_NAME"); then
+        echo updating "$MYDIR"/"$STDOUT_NAME"
+        cp "$BUILD_DIR"/"$STDOUT_NAME" "$MYDIR"/"$STDOUT_NAME"
+    fi
+    if [[ -f "$BUILD_DIR"/"$STDERR_NAME" ]] && \
+           ! (cmp -s -- "$BUILD_DIR"/"$STDERR_NAME" "$MYDIR"/"$STDERR_NAME"); then
+        echo updating "$MYDIR"/"$STDERR_NAME"
+        cp "$BUILD_DIR"/"$STDERR_NAME" "$MYDIR"/"$STDERR_NAME"
+    fi
+    if [[ -f "$BUILD_DIR"/"$FIXED_NAME" ]] && \
+           ! (cmp -s -- "$BUILD_DIR"/"$FIXED_NAME" "$MYDIR"/"$FIXED_NAME"); then
+        echo updating "$MYDIR"/"$FIXED_NAME"
+        cp "$BUILD_DIR"/"$FIXED_NAME" "$MYDIR"/"$FIXED_NAME"
+    fi
+done