Setup first draft of diff script. Need to fine tune preprocessor flags.

Test/VeriFast/tasks/vTaskSwitchContext/diff.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+
+
+
+# Relative or absolute path to the directory this script and `paths.sh` reside in.
+PREFIX=`dirname $0`
+# Absolute path to the base of this repository.
+REPO_BASE_DIR="$1"
+
+# Load functions used to compute paths.
+. "$PREFIX/paths.sh"
+
+VF_PROOF_BASE_DIR=`vf_proof_base_dir $REPO_BASE_DIR`
+
+
+
+# Load functions used to compute paths.
+. "$PREFIX/paths.sh"
+
+VF_PROOF_DIR=`vf_proof_base_dir $REPO_BASE_DIR`
+
+PP_SCRIPT_DIR=`pp_script_dir $REPO_BASE_DIR`
+
+echo preprocessing production version of 'tasks.c'
+"$PP_SCRIPT_DIR/preprocess_file_for_diff.sh" \
+    `prod_tasks_c $REPO_BASE_DIR` \
+    `pp_prod_tasks_c $REPO_BASE_DIR` \
+    "`pp_log_dir $REPO_BASE_DIR`/err1.txt" \
+    $REPO_BASE_DIR \
+    $VF_PROOF_BASE_DIR
+
+echo preprocessing verified version of 'tasks.c'
+"$PP_SCRIPT_DIR/preprocess_file_for_diff.sh" \
+    `vf_annotated_tasks_c $REPO_BASE_DIR` \
+    `pp_vf_tasks_c $REPO_BASE_DIR` \
+    "`pp_log_dir $REPO_BASE_DIR`/err2.txt" \
+    $REPO_BASE_DIR \
+    $VF_PROOF_BASE_DIR
+
+# pp script args
+# SRC_FILE="$1"
+# OUT_FILE="$2"
+# ERR_FILE="$3"
+# REPO_BASE_DIR="$4"
+# VF_PROOF_BASE_DIR="$5"
+
+
+
+printf "\n\n\n"
+echo Diff:
+echo -----------------------------------------------------
+echo
+git diff --no-index "`pp_log_dir $REPO_BASE_DIR`/err1.txt" `pp_vf_tasks_c $REPO_BASE_DIR`