refactor to support independent runs across accounts

[etc/offlineimap.git] / .bin / offlineimap

diff --git a/.bin/offlineimap b/.bin/offlineimap
index d1f81c07a3e246e867fbec37e31c8745e0929b00..a1d7f96229509c63da8d44def38dbbec4c33c646 100755 (executable)
--- a/.bin/offlineimap
+++ b/.bin/offlineimap
@@ -1,27 +1,66 @@
 #!/bin/sh
 set -eu
 
-[ "${1:-}" = -q ] && exec >/dev/null
-
 VAR=$HOME/.var/offlineimap
-LOCKFILE="$VAR/.cron.lock"
-trapfn() { rm -f "$LOCKFILE"; trap - 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15; }
-trap trapfn 1 2 3 4 5 6 7 8 10 11 12 13 14 15
-if [ -d "$VAR" ] && ! lockfile -0 -r0 -l 3600 "$LOCKFILE" 2>/dev/null; then
-  echo "E: offlineimap is already running." >&2
+
+opts=
+accounts=
+quiet=
+for opt in "$@"; do
+  case "$opt" in
+    --quiet)
+      opts="${opts:+$opts }-uQuiet -l/dev/null"
+      quiet=1
+      ;;
+    -a) continue;;
+    -*) opts="${opts:+$opts }$opt";;
+    *) accounts="${accounts:+$accounts }$opt";;
+  esac
+done
+
+info() { [ -n "$quiet" ] || echo >&2 "$@"; }
+err() { echo >&2 "$@"; }
+
+if [ -z "$accounts" ]; then
+  err "E: no account(s) specified…"
   exit 1
+else
+  accounts=$(echo "$accounts" | sed -e 's/,/ /g')
 fi
 
-trap trapfn 0
-
 if ! test -t 0; then
-  echo Renicing because we are not run interactively…
+  say "I: Renicing because we are not run interactively…"
   renice 20 -p $$ >/dev/null
   ionice -c3 -p $$
 fi
 
-ret=0
-strace -tfo /tmp/offlineimap.strace /usr/bin/offlineimap "$@" || ret=$?
+getlock()
+{
+  lockfile="$VAR/.$1.lock"
+  trapfn() { rm -f "$lockfile"; trap - 0 1 2 3 4 5 6 7 8 10 11 12 13 14 15; }
+  trap trapfn 1 2 3 4 5 6 7 8 10 11 12 13 14 15
+  if [ -d "$VAR" ] && ! lockfile -0 -r0 -l 3600 "$lockfile" 2>/dev/null; then
+    return 1
+  fi
+  trap trapfn 0
+}
 
-trapfn
-exit $ret
+failures=0
+for account in $accounts; do
+  getlock "$account" || {
+    err "E: unable to acquire lock for account $account, already running?"
+    failures=$(($failures + 1))
+    continue
+  }
+
+  eval /usr/bin/offlineimap -a $account -k metadata=$VAR/$account $opts || \
+    failures=$(($failures + 1))
+
+  trapfn
+done
+
+if [ $failures -gt 0 ]; then
+  exit 1
+else
+  exit 0
+fi