Check if file exists before patching

patches/remove-share-to-nonfree-services.sh

@@ -15,6 +15,9 @@
 # You should have received a copy of the GNU General Public License
 # along with element-web-patches. If not, see <https://www.gnu.org/licenses/>.
 
+set -euo pipefail
+LWD="$PWD"
+
 echo "Removing links to nonfree services..."
 
 error() {
@@ -22,7 +25,11 @@ error() {
     exit 1
 }
 
-patch_content=$(cat << EOF
+cd "${1}"
+
+if test -f "./node_modules/matrix-react-sdk/lib/components/views/dialogs/ShareDialog.js"; then
+
+patchjs_content=$(cat << EOF
 --- a/node_modules/matrix-react-sdk/lib/components/views/dialogs/ShareDialog.js
 +++ b/node_modules/matrix-react-sdk/lib/components/views/dialogs/ShareDialog.js
 @@ -37,28 +37,6 @@
@@ -54,6 +61,15 @@ patch_content=$(cat << EOF
    name: "email",
    img: require("../../../../res/img/social/email-1.png"),
    url: url => \`mailto:?body=\${url}\`
+EOF
+)
+
+echo "${patchjs_content}" | patch -t -p1 || error
+fi
+
+if test -f "./node_modules/matrix-react-sdk/src/components/views/dialogs/ShareDialog.tsx"; then
+
+patchtsx_content=$(cat << EOF
 --- a/node_modules/matrix-react-sdk/src/components/views/dialogs/ShareDialog.tsx
 +++ b/node_modules/matrix-react-sdk/src/components/views/dialogs/ShareDialog.tsx
 @@ -31,30 +31,6 @@
@@ -90,8 +106,6 @@ patch_content=$(cat << EOF
 EOF
 )
 
-(cd "${1}" && echo "${patch_content}" | patch -p1) || error
-rm -f "${1}"/node_modules/matrix-react-sdk/res/img/social/facebook.png \
-      "${1}"/node_modules/matrix-react-sdk/res/img/social/linkedin.png \
-      "${1}"/node_modules/matrix-react-sdk/res/img/social/reddit.png \
-      "${1}"/node_modules/matrix-react-sdk/res/img/social/twitter-2.png \
+echo "${patchtsx_content}" | patch -t -p1 || error
+fi
+cd $LWD