Switch formatting from AWK to a C program.

Due mostly to poor performance, calling out to the shell for time
formatting quickly degrades in performance with a large list, this
solves that problem. Yes, `gawk` has strftime, no, I don't want to use
gawk.

1 files changed, 0 insertions, 65 deletions

diff --git a/strftime.c b/strftime.c
deleted file mode 100644
index 70d171b..0000000
--- a/strftime.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2023 Mitchell Riedstra
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
- * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- *
- * A fairly basic interface to `strftime`, since dates are apparently difficult
- * to handle with regular command line utilites and the POSIX spec for `date`
- * is rather lacking.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <errno.h>
-
-
-void
-help()
-{
-	puts("strftime <fmt> [timestamp]");
-	exit(1);
-}
-
-int
-main(int argc, char **argv) {
-	time_t t = time(NULL);
-	char **a = argv+1;
-	struct tm *tm;
-	char *fmt;
-	char out[256] = {0};
-
-	if (!*a) {
-		help();
-	}
-
-	fmt = *a;
-	a++;
-
-	if (*a) {
-		errno = 0;
-		t = strtol(*a, NULL, 10);
-		if (errno != 0) {
-			perror("strtol");
-			exit(1);
-		}
-	}
-
-	tm = localtime(&t);
-
-	if (strftime(out, 256, fmt, tm) == 0) {
-		perror("strftime");
-		exit(1);
-	}
-
-	puts(out);
-}