'Generic Commit'

sos/sos

@@ -9,6 +9,14 @@ set -euo pipefail
 # this will upload the file to the server, and return the download URL
 
 
+# get dropshell
+TEMP_DIR=$(mktemp -d)
+curl -L -s -o "${TEMP_DIR}/dropshell" "https://getbin.xyz/dropshell"
+chmod +x "${TEMP_DIR}/dropshell"
+trap 'rm -rf "${TEMP_DIR}"' EXIT
+DROPSHELL="${TEMP_DIR}/dropshell"
+
+
 function show_help() {
     cat << EOF
 
@@ -93,11 +101,24 @@ EOF
         WRITE_TOKEN=$(cat "$TOKENPATH")
     fi
 
+    # trip whitespace from the file path
+    LOCALHASH=$("${DROPSHELL}" hash "${FILEPATH}" | tr -d '[:space:]')
+    echo "Local hash: $LOCALHASH"
+
+    FILELINE="-F \"file=@${file}\""
+    EXISTSJSON=$(eval "curl -s \"https://$server/exists/$LOCALHASH\"")
+    DOESEXIT=$(echo "$EXISTSJSON" | jq -r '.exists')
+    if [ "$DOESEXIT" == "true" ]; then
+        echo "File already exists, skipping upload"
+        FILELINE=""
+    fi
+
     HASH=""
 
+    # shellcheck disable=SC2086
     curl --progress-bar -X PUT \
     -H "Authorization: Bearer ${WRITE_TOKEN}" \
-    -F "file=@${file}" \
+    $FILELINE \
     -F "metadata=${METADATA_JSON}" \
     "$TARGET_URL" \
     || die "Failed to upload $file to $TARGET_URL"