tools: Write current_ver.dep after file change

Author: islandryu

tools/dep_updaters/update-icu.sh

@@ -47,17 +47,14 @@ KEY_URL="https://raw.githubusercontent.com/unicode-org/icu/release-$(echo $NEW_V
 
 CHECKSUM=$(curl -sL "$NEW_VERSION_MD5" | grep "$NEW_VERSION_TGZ" | grep -v "\.asc$" | awk '{print $1}')
 
-
-echo "Comparing checksums: deposited '$CHECKSUM' with '$GENERATED_CHECKSUM'"
-
 if [ -n "$CHECKSUM" ]; then
   GENERATED_CHECKSUM=$( curl -sL "$NEW_VERSION_TGZ_URL" | md5sum | cut -d ' ' -f1)
-  echo "Comparing checksums: deposited $CHECKSUM with $GENERATED_CHECKSUM"
+  echo "Comparing checksums: deposited '$CHECKSUM' with '$GENERATED_CHECKSUM'"
   if [ "$CHECKSUM" != "$GENERATED_CHECKSUM" ]; then
     echo "Skipped because checksums do not match."
     exit 0
   fi
-  perl -i -pe "s|\"(md5\|gpg)\": .*|\"md5\": \"$CHECKSUM\"|" "$TOOLS_DIR/icu/current_ver.dep"
+  REGEX="s|\"(md5\|gpg)\": .*|\"md5\": \"$CHECKSUM\"|"
 else
   echo "Checksum not found"
   echo "check with gpg"
@@ -68,7 +65,8 @@ else
   if gpg --verify signature.asc data.tgz; then
     echo "Signature verified"
     rm data.tgz signature.asc KEYS
-    perl -i -pe "s|\"(gpg\|md5)\": .*|\"gpg\": { \"key\": \"$KEY_URL\", \"asc\": \"$NEW_VERSION_TGZ_ASC_URL\" }|" "$TOOLS_DIR/icu/current_ver.dep"
+
+    REGEX="s|\"(gpg\|md5)\": .*|\"gpg\": { \"key\": \"$KEY_URL\", \"asc\": \"$NEW_VERSION_TGZ_ASC_URL\" }|"
   else
     echo "Skipped because signature verification failed."
     rm data.tgz signature.asc KEYS
@@ -84,6 +82,7 @@ rm -rf "$DEPS_DIR/icu"
 
 perl -i -pe "s|\"url\": .*|\"url\": \"$NEW_VERSION_TGZ_URL\",|" "$TOOLS_DIR/icu/current_ver.dep"
 
+perl -i -pe "$REGEX" "$TOOLS_DIR/icu/current_ver.dep"
 
 rm -rf out "$DEPS_DIR/icu" "$DEPS_DIR/icu4c*"