fix: file paths in snapshots by normalizing on windows

Author: Bushuo

rewatch/tests/compile.sh

@@ -39,32 +39,36 @@ mv ./packages/main/src/Main2.res ./packages/main/src/Main.res
 # Rename a file with a dependent - this should trigger an error
 mv ./packages/main/src/InternalDep.res ./packages/main/src/InternalDep2.res
 rewatch build &> ../tests/snapshots/rename-file-internal-dep.txt
-# replace the absolute path so the snapshot is the same on all machines
-replace "s/$(pwd | sed "s/\//\\\\\//g")//g" ../tests/snapshots/rename-file-internal-dep.txt
+# normalize paths so the snapshot is the same on all machines
+normalize_paths ../tests/snapshots/rename-file-internal-dep.txt
 mv ./packages/main/src/InternalDep2.res ./packages/main/src/InternalDep.res
 
 # Rename a file with a dependent in a namespaced package - this should trigger an error (regression)
 mv ./packages/new-namespace/src/Other_module.res ./packages/new-namespace/src/Other_module2.res
 rewatch build &> ../tests/snapshots/rename-file-internal-dep-namespace.txt
-# replace the absolute path so the snapshot is the same on all machines
-replace "s/$(pwd | sed "s/\//\\\\\//g")//g" ../tests/snapshots/rename-file-internal-dep-namespace.txt
+# normalize paths so the snapshot is the same on all machines
+normalize_paths ../tests/snapshots/rename-file-internal-dep-namespace.txt
 mv ./packages/new-namespace/src/Other_module2.res ./packages/new-namespace/src/Other_module.res
 
 rewatch build &>  /dev/null
 mv ./packages/main/src/ModuleWithInterface.resi ./packages/main/src/ModuleWithInterface2.resi
 rewatch build &> ../tests/snapshots/rename-interface-file.txt
+# normalize paths so the snapshot is the same on all machines
+normalize_paths ../tests/snapshots/rename-interface-file.txt
 mv ./packages/main/src/ModuleWithInterface2.resi ./packages/main/src/ModuleWithInterface.resi
 rewatch build &> /dev/null
 mv ./packages/main/src/ModuleWithInterface.res ./packages/main/src/ModuleWithInterface2.res
 rewatch build &> ../tests/snapshots/rename-file-with-interface.txt
+# normalize paths so the snapshot is the same on all machines
+normalize_paths ../tests/snapshots/rename-file-with-interface.txt
 mv ./packages/main/src/ModuleWithInterface2.res ./packages/main/src/ModuleWithInterface.res
 rewatch build &> /dev/null
 
 # when deleting a file that other files depend on, the compile should fail
 rm packages/dep02/src/Dep02.res
 rewatch build &> ../tests/snapshots/remove-file.txt
-# replace the absolute path so the snapshot is the same on all machines
-replace "s/$(pwd | sed "s/\//\\\\\//g")//g" ../tests/snapshots/remove-file.txt
+# normalize paths so the snapshot is the same on all machines
+normalize_paths ../tests/snapshots/remove-file.txt
 git checkout -- packages/dep02/src/Dep02.res
 rewatch build &> /dev/null
 

rewatch/tests/utils.sh

@@ -6,6 +6,42 @@ bold() { echo -e "\033[1m$1\033[0m"; }
 rewatch() { RUST_BACKTRACE=1 $REWATCH_EXECUTABLE --no-timing=true $@; }
 rewatch_bg() { RUST_BACKTRACE=1 nohup $REWATCH_EXECUTABLE --no-timing=true $@; }
 
+# Detect if running on Windows
+is_windows() {
+  [[ $OSTYPE == 'msys'* || $OSTYPE == 'cygwin'* || $OSTYPE == 'win'* ]];
+}
+
+# get pwd with forward slashes
+pwd_prefix() {
+  if is_windows; then
+    # On Windows, escape backslashes for sed and convert to forward slashes for consistent snapshots
+    # This ensures paths like C:\a\b are replaced correctly
+    # First get the Windows-style path with backslashes
+    local win_path=$(pwd -W | sed "s#/#\\\\#g")
+    # Then escape the backslashes for sed replacement
+    echo $win_path | sed 's#\\#\\\\#g'
+  else
+    # On Unix-like systems, escape forward slashes for sed
+    echo $(pwd | sed "s#/#\\/#g")
+  fi
+}
+
+# replace the absolute path so the snapshot is the same on all machines
+# then normalize the path separators
+normalize_paths() {
+  if [[ $OSTYPE == 'darwin'* ]];
+  then
+    sed -i '' "s#$(pwd_prefix)##g" $1;
+  else
+    if is_windows; then
+      sed -i "s#$(pwd_prefix)##g" $1
+      sed -i "s#\\\\#/#g" $1
+    else
+      sed -i "s#$(pwd_prefix)##g" $1;
+    fi
+  fi
+}
+
 replace() {
   if [[ $OSTYPE == 'darwin'* ]];
   then