X-Git-Url: https://git.adam-barratt.org.uk/?a=blobdiff_plain;ds=inline;f=modules%2Froles%2Ffiles%2Fstatic-mirroring%2Fstatic-master-update-component;h=4ab5143e5b0b44e3fad9aaa64ff6e35f0cde32bf;hb=168aa3f05f914802698b8db5fdde823c4e992913;hp=2f1742bec4815fc7395b81e1bd67590abbce3a2d;hpb=5a0eade9f4a8531e7394b19ddaad072e8f38692d;p=mirror%2Fdsa-puppet.git

diff --git a/modules/roles/files/static-mirroring/static-master-update-component b/modules/roles/files/static-mirroring/static-master-update-component
index 2f1742bec..4ab5143e5 100755
--- a/modules/roles/files/static-mirroring/static-master-update-component
+++ b/modules/roles/files/static-mirroring/static-master-update-component
@@ -30,11 +30,19 @@
 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 componentlist=/etc/static-components.conf
-base=/home/staticsync/static-master/master
+. /etc/staticsync.conf
+if ! [ -n "$masterbase" ]; then
+  echo >&2 "masterbase not configured!"
+  exit 1
+fi
 
 set -e
 set -u
 
+if [ "`id -u`" != "`stat -c %u "$masterbase"`" ]; then
+  echo >&2 "You are probably running this as the wrong user."
+  exit 1
+fi
 
 lock() {
   local fd="$1"; shift
@@ -50,7 +58,7 @@ lock() {
   fi
 
   if ! flock "$locktype" "$fd"; then
-    echo >&2 "$0: Cannot acquire lock on $base (flock $locktype failed) - Very bad, we should have waited!"
+    echo >&2 "$0: Cannot acquire lock on $path (flock $locktype failed) - Very bad, we should have waited!"
     exit 1
   fi
 }
@@ -77,16 +85,24 @@ if [ "${component%/*}" != "$component" ] ; then
   exit 1
 fi
 
-srchost="$(awk -v component="$component" '$1 == component {print $2; exit}' "$componentlist")"
-srcdir="$(awk -v component="$component" '$1 == component {print $3; exit}' "$componentlist")"
+srchost="$(awk -v this_host="$(hostname -f)" -v component="$component" '!/^ *(#|$)/ && $1 == this_host && $2 == component {print $3; exit}' "$componentlist")"
+srcdir="$(awk -v this_host="$(hostname -f)" -v component="$component" '!/^ *(#|$)/ && $1 == this_host && $2 == component {print $4; exit}' "$componentlist")"
 if [ -z "$srchost" ] || [ -z "$srcdir" ]; then
   echo >&2 "$0: Invalid component: $component (not found in $componentlist)";
   exit 1
 fi
-tgt="$base/$component"
+
+tgtlock="$masterbase/$component.lock"
+if ! [ -e "$tgtlock" ]; then
+  touch "$tgtlock"
+fi
+echo "$0: Acquiring lock on $tgtlock..."
+lock 203 "$tgtlock" 1
+
+tgt="$masterbase/$component"
 if ! [ -d "$tgt" ]; then
-  echo >&2 "$0: Invalid component: $component ($tgt does not exist)";
-  exit 1
+  echo "$0: Creating $tgt for $component";
+  mkdir "$tgt"
 fi
 
 if [ "$srchost" = "`hostname -f`" ]; then
@@ -95,42 +111,45 @@ else
   src="$srchost:$srcdir"
 fi
 
-echo "$0: Acquiring locks..."
-lock 200 "$base" 0
-lock 201 "$tgt" 1
+#echo "$0: Acquiring lock on $tgt..."
+#lock 201 "$tgt" 1
 
-tmpdir_new="$(mktemp -d --tmpdir="$base" "${component}.new-XXXXXX")"
-tmpdir_old="$(mktemp -d --tmpdir="$base" "${component}.old-XXXXXX")"
+tmpdir_new="$(mktemp -d --tmpdir="$masterbase" "${component}-updating.incoming-XXXXXX")"
+tmpdir_old="$(mktemp -d --tmpdir="$masterbase" "${component}-updating.removing-XXXXXX")"
 trap "rm -rf '$tmpdir_new' '$tmpdir_old'" EXIT
 chmod 0755 "$tmpdir_new"
 
-lock 202 "$tmpdir_new" 1
+#echo "$0: Acquiring lock on $tmpdir_new..."
+#lock 202 "$tmpdir_new" 1
 echo "$0: Got them."
 
 echo "$0: Updating master copy of $component..."
 rsync --delete \
-  -tr \
+  -trz \
+  --links --hard-links --safe-links \
   --link-dest="$tgt" \
+  --exclude='/.serial' \
   "$src/." "$tmpdir_new/."
 echo "$0: Done.  Committing."
 
-mv "$tgt" "$tmpdir_old/old"
-if ! mv "$tmpdir_new" "$tgt"; then
+mv --no-target-directory "$tgt" "$tmpdir_old/old"
+if ! mv --no-target-directory "$tmpdir_new" "$tgt"; then
   echo >&2 "$0: WARNING: could not move $tmpdir_new to $tgt.  Trying to recover"
   rm -rf "$tgt"
-  mv "$tmpdir_old/old" "$tgt"
-  echo >&2 "$0: Rolled back to old tree maybe successfully."
+  mv --no-target-directory "$tmpdir_old/old" "$tgt"
+  echo >&2 "$0: Rolled back to old tree, maybe even successfully."
   exit 1
 fi
 
 rm -rf "$tmpdir_new" "$tmpdir_old"
 trap - EXIT
 
-date '+%s' > "$base/.serial"
-unlock 201
-unlock 200
+date '+%s' > "$tgt/.serial"
+#unlock 201
+#unlock 202
+unlock 203
 echo "$0: Triggering mirror runs..."
-exec static-master-run
+exec static-master-run "$component"
 
 # vim:set et:
 # vim:set ts=2: