Merge branch 'js/larger-timestamps'

Some platforms have ulong that is smaller than time_t, and our
historical use of ulong for timestamp would mean they cannot
represent some timestamp that the platform allows.  Invent a
separate and dedicated timestamp_t (so that we can distingiuish
timestamps and a vanilla ulongs, which along is already a good
move), and then declare uintmax_t is the type to be used as the
timestamp_t.

* js/larger-timestamps:
  archive-tar: fix a sparse 'constant too large' warning
  use uintmax_t for timestamps
  date.c: abort if the system time cannot handle one of our timestamps
  timestamp_t: a new data type for timestamps
  PRItime: introduce a new "printf format" for timestamps
  parse_timestamp(): specify explicitly where we parse timestamps
  t0006 & t5000: skip "far in the future" test when time_t is too limited
  t0006 & t5000: prepare for 64-bit timestamps
  ref-filter: avoid using `unsigned long` for catch-all data type

1 files changed, 4 insertions, 4 deletions

diff --git a/refs.h b/refs.h
index aca805168a..d18ef47128 100644
--- a/refs.h
+++ b/refs.h
@@ -318,9 +318,9 @@ int safe_create_reflog(const char *refname, int force_create, struct strbuf *err
 
 /** Reads log for the value of ref during at_time. **/
 int read_ref_at(const char *refname, unsigned int flags,
-		unsigned long at_time, int cnt,
+		timestamp_t at_time, int cnt,
 		unsigned char *sha1, char **msg,
-		unsigned long *cutoff_time, int *cutoff_tz, int *cutoff_cnt);
+		timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt);
 
 /** Check if a particular reflog exists */
 int refs_reflog_exists(struct ref_store *refs, const char *refname);
@@ -357,7 +357,7 @@ int delete_reflog(const char *refname);
 /* iterate over reflog entries */
 typedef int each_reflog_ent_fn(
 		struct object_id *old_oid, struct object_id *new_oid,
-		const char *committer, unsigned long timestamp,
+		const char *committer, timestamp_t timestamp,
 		int tz, const char *msg, void *cb_data);
 
 int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname,
@@ -607,7 +607,7 @@ typedef void reflog_expiry_prepare_fn(const char *refname,
 typedef int reflog_expiry_should_prune_fn(unsigned char *osha1,
 					  unsigned char *nsha1,
 					  const char *email,
-					  unsigned long timestamp, int tz,
+					  timestamp_t timestamp, int tz,
 					  const char *message, void *cb_data);
 typedef void reflog_expiry_cleanup_fn(void *cb_data);