Keep files larger than max_size for 7 daysHEADmaster

2 files changed, 9 insertions, 4 deletions

diff --git a/README b/README
index dfc49b2..c28bd3b 100644
--- a/README
+++ b/README
@@ -3,8 +3,9 @@ Most of these were uploaded to share something on IRC / email / IM, and aren't
 needed after some number of days.
 
 To address this, I wrote a small garbage collector in C. Its file retention
-period is shamelessly stolen from the kind folks at http://0x0.st/ and
-https://ttm.sh/ .
+period is shamelessly stolen from the kind folks at <http://0x0.st/> and
+<https://ttm.sh/>, with the exception that files larger than max_size are kept
+for a fxed number of days before being deleted.
 
 SETUP:
 
diff --git a/cleanup.c b/cleanup.c
index d308a12..62b0dd4 100644
--- a/cleanup.c
+++ b/cleanup.c
@@ -29,6 +29,7 @@
 #include <time.h>
 #include <unistd.h>
 
+const double bigd = 7.0;
 const double mind = 30.0;
 const double maxd = 90.0;
 const double max_size = 33554432; // 32MB
@@ -82,8 +83,11 @@ main(int argc, char * const argv[])
 				break;
 			}
 			file_age = difftime(curr_time, attr.st_mtime) / 86400.0;
-			cutoff = mind + (mind - maxd) *
-				     pow((double) attr.st_size / (double) max_size - 1, 3.0);
+			if (attr.st_size > max_size)
+				cutoff = bigd;
+			else
+				cutoff = mind + (mind - maxd) *
+				    pow((double) attr.st_size / (double) max_size - 1, 3.0);
 			if (verbose)
 				printf("%s age %fd cuttoff %fd size %lldB\n",
 				       node->fts_path, file_age, cutoff, attr.st_size);