introduce 'to_home' and systemd user services

- frappy is now a systemd user service
- add 'frappy' and 'boxweb' bash function

to_home/.config/linse_setuser

@@ -0,0 +1,66 @@
+if [[ -z "$GIT_AUTHOR_EMAIL" || -z "$GIT_AUTHOR_NAME" ]]; then
+  export GIT_AUTHOR_NAME=PREVENT_DEFAULT
+else
+  export GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL
+  export GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
+fi
+
+function sigint_handler() {
+  trap - INT
+}
+
+function setuser() {
+  if [[ $# -eq 0 ]]; then
+    cat << EOF
+
+    Usage:
+          setuser <personal linux username>
+
+    set author for git commit and get gitea token from linse-c if available
+
+EOF
+    if [[ "$GIT_AUTHOR_NAME" != "PREVENT_DEFAULT" ]]; then
+      echo "you are already identified as $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
+      echo " "
+    fi
+  else
+    local isuser=$(ssh l_samenv@linse-c "test -d ~$1 && echo OK" 2>/dev/null)
+    if [[ "$isuser" == "OK" ]]; then
+      echo " "
+      if [[ "$GIT_AUTHOR_NAME" != "PREVENT_DEFAULT" && ! -z "$GITEA_TOKEN" ]]; then
+        echo "you are already identified as $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> - you may press ctrl-c to abort"
+        echo "get token again from $1@linse-c"
+      else
+        echo "get token from $1@linse-c"
+      fi
+      trap sigint_handler SIGINT
+      local all=($(ssh $1@linse-c 'echo _ $GITEA_TOKEN $GIT_AUTHOR_EMAIL $GIT_AUTHOR_NAME' 2>/dev/null))
+      if [[ -z "$all" ]]; then
+        return 1
+      fi
+      local token=${all[1]}
+      local email=${all[2]}
+      local name=${all[@]:3:9}
+      if [[ -z "$token" || -z "$email" || -z "$name" ]]; then
+        echo "GITEA_TOKEN, GIT_AUTHOR_EMAIL and GIT_AUTHOR_NAME are not defined in your rc file on $1@linse-c"
+      else
+        export GITEA_TOKEN=$token
+        export GIT_AUTHOR_EMAIL=$email
+        export GIT_AUTHOR_NAME=$name
+        echo "you are identified as $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL>"
+      fi
+      echo " "
+    else
+      host=($(hostname -A))
+      export GIT_AUTHOR_NAME="$1"
+      export GIT_AUTHOR_EMAIL="$1@$host"
+      echo " "
+      echo "$1 is no valid linux user on linse-c -> no gitea token available for git push"
+      echo " "
+      echo "however, you are identified as $GIT_AUTHOR_NAME <$GIT_AUTHOR_EMAIL> for git commit"
+      echo " "
+    fi
+  fi
+  export GIT_COMMITTER_EMAIL=$GIT_AUTHOR_EMAIL
+  export GIT_COMMITTER_NAME=$GIT_AUTHOR_NAME
+}