always keep the first snapshot

1 files changed, 6 insertions, 2 deletions

diff --git a/src/retain-snapshots b/src/retain-snapshots
index e07e903..1f9ee73 100755
--- a/src/retain-snapshots
+++ b/src/retain-snapshots
@@ -63,7 +63,7 @@ retain()
         2>/dev/null [ "$retain_years" -ge 1 ] || retain_years=$default_retain_years
 
         _year= _month= _day= _hour= _minute= _second= _nanosecond=
-        now=
+        now= first=y
         if [ "$use_clock_time" ]
         then
                 now=$(date +%s)
@@ -80,7 +80,11 @@ retain()
                 IFS='~-T:,' read year month day hour minute second nanosecond <<< "$dateline"
 
                 keep=
-                if [ "$year" != "$_year" ] && [ "$age" -lt $((retain_years * 366 * 24 * 60 * 60)) ]
+                if [ "$first" ]
+                then
+                        keep="latest -> $line"
+                        first=
+                elif [ "$year" != "$_year" ] && [ "$age" -lt $((retain_years * 366 * 24 * 60 * 60)) ]
                 then
                         keep="$year -> $line"
                 elif [ "$month" != "$_month" ] && [ "$age" -lt $((366 * 24 * 60 * 60)) ]