Add script to generate missing test outputs

1 files changed, 102 insertions, 0 deletions

diff --git a/update-tests.sh b/update-tests.sh
new file mode 100755
index 0000000..6630b34
--- /dev/null
+++ b/update-tests.sh
@@ -0,0 +1,102 @@
+#!/usr/bin/env bash
+# This script generates the missing "...B.dhall" files in tests.
+# It needs to have a valid `dhall` executable in the PATH.
+# It also uses the `fd` command (https://github.com/sharkdp/fd), until
+# someone comes up with the correct equivalent `find` invocation.
+#
+# Usage:
+# $ ./update-tests.sh
+
+usage_text=$(cat <<-END
+Usage: update-tests.sh [missing | add]
+END
+)
+
+cd "$(dirname "$0")" || exit 1
+
+if [ ! -x "$(which dhall)" ] ; then
+    echo "Error: 'dhall' executable not found in PATH"
+fi
+if [ ! -x "$(which fd)" ] ; then
+    echo "Error: 'fd' executable not found in PATH"
+fi
+if [ ! -x "$(which cbor2diag.rb)" ] ; then
+    echo "Error: 'cbor2diag.rb' executable not found in PATH"
+fi
+
+function parser_input_file() { echo "$1A.dhall"; }
+function parser_output_file() { echo "$1B.dhallb"; }
+function parser_process() {
+    dhall encode --file "$1"
+}
+
+function binary-decode_input_file() { echo "$1A.dhallb"; }
+function binary-decode_output_file() { echo "$1B.dhall"; }
+function binary-decode_process() {
+    dhall decode --file "$1"
+}
+
+function semantic-hash_input_file() { echo "$1A.dhall"; }
+function semantic-hash_output_file() { echo "$1B.hash"; }
+function semantic-hash_process() {
+    dhall hash --file "$1"
+}
+
+function import_input_file() { echo "$1A.dhall"; }
+function import_output_file() { echo "$1B.dhall"; }
+function import_process() {
+    dhall resolve --file "$1"
+}
+
+function type-inference_input_file() { echo "$1A.dhall"; }
+function type-inference_output_file() { echo "$1B.dhall"; }
+function type-inference_process() {
+    dhall resolve --file "$1" | dhall type
+}
+
+function normalization_input_file() { echo "$1A.dhall"; }
+function normalization_output_file() { echo "$1B.dhall"; }
+function normalization_process() {
+    dhall resolve --file "$1" | dhall normalize
+}
+
+function alpha-normalization_input_file() { echo "$1A.dhall"; }
+function alpha-normalization_output_file() { echo "$1B.dhall"; }
+function alpha-normalization_process() {
+    dhall normalize --alpha --file "$1"
+}
+
+tmpfile=$(mktemp -t update-tests.XXXXXX)
+trap "{ rm -f $tmpfile; }" EXIT
+
+function generate_output_file() {
+    folder="$1"
+    file="$2"
+    INPUT_FILE="$(${folder}_input_file "$file")"
+    OUTPUT_FILE="$(${folder}_output_file "$file")"
+    if [ ! -f "$OUTPUT_FILE" ]; then
+        echo "$INPUT_FILE"
+        ${folder}_process "$INPUT_FILE" > "$tmpfile"
+        if [ $? -eq 0 ]; then
+            mv "$tmpfile" "$OUTPUT_FILE"
+            if [ "$folder" = "parser" ]; then
+                cat "$OUTPUT_FILE" | cbor2diag.rb > "${file}B.diag"
+            fi
+        fi
+    fi
+}
+
+if [ "$1" = "missing" ]; then
+    echo "Generating missing output files..."
+    # This is not robust to spaces in filenames, but there should be none in the
+    # repo anyways.
+    for folder in parser binary-decode semantic-hash import type-inference normalization alpha-normalization; do
+        fd 'A\.dhallb?$' ./dhall-lang/tests/$folder/success  ./dhall/tests/$folder/success \
+            | sed 's/A.dhallb\?$//' \
+            | while read file; do
+                generate_output_file "$folder" "$file"
+            done
+    done
+else
+    echo "$usage_text"
+fi