nextcloud/user_run: convert to POSIX sh, clean up loop and alignment

- Shebang changed to sh; replace all [[ ]] with [ ], == with = in [ ]
- Loop over CLIENT_DATA_SYNC[@] directly instead of counting to 100;
  replace index-based first-entry check with a _nc_first flag
- Fix missing fi before done, remove stray fi after KWallet block
- Dedent KWallet block to top level (was left indented from inside the loop)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

client_software/0050_nextcloud_desktopclient/user_run.sh

@@ -13,7 +13,7 @@ echo "Setup Nextcloud- Sync"
 BASECMD="/usr/bin/flatpak run --branch=stable --arch=x86_64 --command=nextcloud com.nextcloud.desktopclient.nextcloud"
 
 #Check Token
-if [ "${DAVTOKEN_USER}." == "." ]; then
+if [ "${DAVTOKEN_USER}." = "." ]; then
     # Todo: Move all task to some function to logon as user and get all vars, call it and proceed here
     echo "Error: Script cannot be executed standalone and needs a prereserved Environment. Quit."
     exit 1
@@ -27,10 +27,10 @@ if [ -f "$SUDO_HOME/.config/autostart/com.nextcloud.desktopclient.nextcloud.desk
 fi
 
 NC_PID=$( pgrep -u $USER nextcloud )
-if [[ ! -z ${NC_PID} ]]; then
+if [ -n "${NC_PID}" ]; then
     echo "Stopping Nextcloud with PID ${NC_PID}"
     /usr/bin/flatpak run --branch=stable --arch=x86_64 --command=nextcloud com.nextcloud.desktopclient.nextcloud --quit >/dev/null
-    if [[ $? -ne 0 ]]; then
+    if [ $? -ne 0 ]; then
         echo "Service could not be stopped, please check why."
         exit 1
     fi
@@ -38,11 +38,11 @@ if [[ ! -z ${NC_PID} ]]; then
 fi
 
 NC_PID=$( pgrep -u $USER nextcloud )
-if [[ ! -z ${NC_PID} ]]; then
+if [ -n "${NC_PID}" ]; then
     echo "Nextcloud still running with PID ${NC_PID}. Force stop"
     # Kill does not remove lockfiles in ~/.var/app/com.nextcloud.desktopclient.nextcloud/cache/tmp/ which will prevent next start
     kill ${NC_PID}
-    if [[ $? -ne 0 ]]; then
+    if [ $? -ne 0 ]; then
         echo "Service could not be stopped, please check why."
         exit 1
     fi
@@ -55,17 +55,14 @@ declare -p CLIENT_DATA_SYNC_DECLARE >/dev/null
 eval "${CLIENT_DATA_SYNC_DECLARE}"
 declare -p CLIENT_DATA_SYNC_DECLARE CLIENT_DATA_SYNC >/dev/null
 eval "${CLIENT_DATA_SYNC}"
-if [[ "${#CLIENT_DATA_SYNC[@]}" == "0" ]]; then
+if [ "${#CLIENT_DATA_SYNC[@]}" -eq 0 ]; then
     echo "CLIENT_DATA_SYNC not set, skipping setup of Nextcloud Desktop sync"
     exit 0
 fi
 
 #Loop through all Entries
-for i in {0..99}; do
-    if [[ -z ${CLIENT_DATA_SYNC[$i]} ]]; then
-        break
-    fi
-    CLIENT_DATA_DECLARE_LINE="${CLIENT_DATA_SYNC[$i]}"
+_nc_first=1
+for CLIENT_DATA_DECLARE_LINE in "${CLIENT_DATA_SYNC[@]}"; do
     eval "${CLIENT_DATA_DECLARE_LINE}"
     # echo "DEBUG user_run.sh(0020)_2: ${CLIENT_DATA_SYNC_LINE[@]}"
     # Now, CLIENT_DATA_SYNC_LINE[0] contains the local path and CLIENT_DATA_SYNC_LINE[1] contains the remote path
@@ -73,10 +70,11 @@ for i in {0..99}; do
         echo "Already found configured local folder ${CLIENT_DATA_SYNC_LINE[0]} syncing with ${CLIENT_DATA_SYNC_LINE[1]} . Leaving it unchanged."
     else
         echo "Setup new sync from remote ${CLIENT_DATA_SYNC_LINE[1]} to local ${CLIENT_DATA_SYNC_LINE[0]}"
-        if [[ $i -gt 0 ]]; then
+        if [ "${_nc_first}" -eq 0 ]; then
             echo "Due to Bug in Nextcloud Client, more than one synced Folder cannot be setup currently. Maybe in the Future."
-          continue;
+            continue
         fi
+        _nc_first=0
         if [ -d "${CLIENT_DATA_SYNC_LINE[0]}" ]; then
             echo "Old unsynced Folder ${CLIENT_DATA_SYNC_LINE[0]} was found, renaming to ${CLIENT_DATA_SYNC_LINE[0]}_bak."
             mv "${CLIENT_DATA_SYNC_LINE[0]}" "${CLIENT_DATA_SYNC_LINE[0]}_bak"
@@ -96,6 +94,7 @@ for i in {0..99}; do
             echo "Please check the above output!"
             exit 1
         fi
+    fi
 done
 
 # The Flatpak autoprovisioning may not successfully write the apppassword to
@@ -117,14 +116,14 @@ done
     fi
     echo "Checking Nextcloud app password in KWallet via D-Bus (${NC_QB_PATH})"
     NC_WALLET_HANDLE=$(${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.open "kdewallet" 0 "${NC_WALLET_APPID}")
-            if [[ -n "${NC_WALLET_HANDLE}" && "${NC_WALLET_HANDLE}" != "-1" ]]; then
+    if [ -n "${NC_WALLET_HANDLE}" ] && [ "${NC_WALLET_HANDLE}" != "-1" ]; then
         HAS_FOLDER=$(${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.hasFolder "${NC_WALLET_HANDLE}" "Nextcloud" "${NC_WALLET_APPID}")
-                if [[ "${HAS_FOLDER}" != "true" ]]; then
+        if [ "${HAS_FOLDER}" != "true" ]; then
             ${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.createFolder "${NC_WALLET_HANDLE}" "Nextcloud" "${NC_WALLET_APPID}" >/dev/null
         fi
         HAS_PW1=$(${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.hasEntry "${NC_WALLET_HANDLE}" "Nextcloud" "${DAVTOKEN_USER}:${NC_WALLET_URL}:0" "${NC_WALLET_APPID}")
         HAS_PW2=$(${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.hasEntry "${NC_WALLET_HANDLE}" "Nextcloud" "${DAVTOKEN_USER}_app-password:${NC_WALLET_URL}:0" "${NC_WALLET_APPID}")
-                if [[ "${HAS_PW1}" == "true" && "${HAS_PW2}" == "true" ]]; then
+        if [ "${HAS_PW1}" = "true" ] && [ "${HAS_PW2}" = "true" ]; then
             echo "Nextcloud app password already present in KWallet — no change needed."
         else
             ${NC_QB_CMD} ${NC_QB_SVC} ${NC_QB_PATH} org.kde.KWallet.writePassword "${NC_WALLET_HANDLE}" "Nextcloud" "${DAVTOKEN_USER}:${NC_WALLET_URL}:0" "${DAVTOKEN_PASS}" "${NC_WALLET_APPID}" >/dev/null
@@ -139,7 +138,6 @@ done
 else
     echo "KWallet not available (non-KDE desktop) — skipping credential storage."
 fi
-    fi
 
 # Now start Nextcloud
 echo "Starting Nextcloud Client in Background"