datefmt

commit 531e2369b30db01593bd17840fe399802a757791
parent 63cfa62cfd599eb89b8b793658056ec659c3b6f7
Author: William Casarin <jb55@jb55.com>
Date:   Tue,  7 Dec 2021 11:05:32 -0800

env: allow changing default format with env

Diffstat:
M
CHANGELOG.md
 | 
4
++++
M
datefmt.c
 | 
6
++++--
M
doc/datefmt.1
 | 
3
++-
M
doc/datefmt.scd
 | 
3
++-

4 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,10 @@
 
 # Changelog
 
+## 0.2.2
+
+- Added `DEFAULT_DATEFMT` env var to change default format string
+
 ## 0.2.1
 
 - Fix darwin/clang build
diff --git a/datefmt.c b/datefmt.c
@@ -5,7 +5,7 @@
 #include <time.h>
 #include <string.h>
 
-#define VERSION "0.2.1"
+#define VERSION "0.2.2"
 
 enum state {
 	BEGIN,
@@ -166,6 +166,8 @@ static void process(struct parser *parser, int last)
 static void parser_init(struct parser *parser)
 {
 	static unsigned char buf[READSIZE];
+	const char *fmt = getenv("DEFAULT_DATEFMT");
+
 	parser->buf = buf;
 	parser->state = BEGIN;
 	parser->len = 0;
@@ -174,7 +176,7 @@ static void parser_init(struct parser *parser)
 	parser->dir = 0;
 	parser->ms = 0;
 	parser->n_digits = 0;
-	parser->format = "%F %R";
+	parser->format = fmt? fmt : "%F %R";
 }
 
 static void usage() {
diff --git a/doc/datefmt.1 b/doc/datefmt.1
@@ -55,7 +55,8 @@ display version and exit
 .RE
 .SH FORMAT
 .P
-a strftime(3) format string.\& defaults to '%F %R'
+a strftime(3) format string.\& defaults to '%F %R'.\& The default can be changed
+with the \fBDEFAULT_DATEFMT\fR environment variable.\&
 .P
 .SH EXAMPLE
 .P
diff --git a/doc/datefmt.scd b/doc/datefmt.scd
@@ -36,7 +36,8 @@ to convert these timestamps into formatted dates.
 
 # FORMAT
 
-a strftime(3) format string. defaults to '%F %R'
+a strftime(3) format string. defaults to '%F %R'. The default can be changed
+with the *DEFAULT_DATEFMT* environment variable.
 
 # EXAMPLE