From 0c18fa69acb10e086514323008d153d4504c5543 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Fri, 21 Feb 2020 09:54:19 +0100
Subject: update-all: use -c and -s on update-me

---
 update-all.in | 46 ++++++++++++++++++++++++++++++++++------------
 1 file changed, 34 insertions(+), 12 deletions(-)

diff --git a/update-all.in b/update-all.in
index bb87ece..4f30882 100644
--- a/update-all.in
+++ b/update-all.in
@@ -5,7 +5,14 @@
 
 . #ETCDIR#/update-all.conf
 
-if [ "$#" -eq 2 ]; then
+usage() {
+  >&2 printf 'usage:\n'
+  >&2 printf '  %s\n' "${0##*/}"
+  >&2 printf '  %s $id $tmpdir [cs]\n' "${0##*/}"
+  exit 1
+}
+
+if [ "$#" -eq 3 ]; then
   system="${systems["$1"]}"
   if [ "${system}" == "localhost" ]
   then
@@ -14,20 +21,33 @@ if [ "$#" -eq 2 ]; then
     cmd="ssh -t -t ${system}"
   fi
   cmd="${cmd} update-me"
-  ${cmd}
-  err=$?
-  if [ "${err}" -ne 0 ] \
-  && [ -d "$2" ]; then
-    printf '%s\n' "${err}" > "$2/$1"
-  fi
+  case "$3" in
+    'c')
+      while sleep 1; do
+        ${cmd} -c
+        err=$?
+        if [ "${err}" -ne 1 ]; then
+          break
+        fi
+      done
+    ;;
+    's')
+      ${cmd} -s
+      err=$?
+      if [ "${err}" -ne 0 ] \
+      && [ -d "$2" ]; then
+        printf '%s\n' "${err}" > "$2/$1"
+      fi
+    ;;
+    *)
+      usage
+    ;;
+  esac
   exit ${err}
 fi
 
 if [ "$#" -ne 0 ]; then
-  >&2 printf 'usage:\n'
-  >&2 printf '  %s\n' "${0##*/}"
-  >&2 printf '  %s $id $tmpdir\n' "${0##*/}"
-  exit 1
+  usage
 fi
 
 tmp_dir=$(mktemp -d)
@@ -37,10 +57,12 @@ pids=()
 
 for system in "${!systems[@]}"; do
   if [ -z "${DISPLAY}" ]; then
-    screen -S update-all -d -m "${0}" "${system}" "${tmp_dir}"
+    screen -S update-all -d -m "${0}" "${system}" "${tmp_dir}" 's'
+    screen -S update-clear-all -d -m "${0}" "${system}" "${tmp_dir}" 'c'
   else
     urxvt -title "${systems["${system}"]}: update-me" -e "${0}" "${system}" "${tmp_dir}" &
     pids+=($!)
+    screen -S update-clear-all -d -m "${0}" "${system}" "${tmp_dir}" 'c'
   fi
 done
 
-- 
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