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authorJim Meyering <jim@meyering.net>2003-03-04 21:40:33 +0000
committerJim Meyering <jim@meyering.net>2003-03-04 21:40:33 +0000
commitb71a7bfd31026024f8e635bc9efa1ec26724f6b0 (patch)
treec1ea4f91e99fbc9e47affec7a1ff7ef36a5d8fcc
parentac44ebc2f7ddad9b9e20fbded83668c34695c0b0 (diff)
downloadcoreutils-b71a7bfd31026024f8e635bc9efa1ec26724f6b0.tar.xz
.
-rwxr-xr-xconfig/mdate-sh58
1 files changed, 47 insertions, 11 deletions
diff --git a/config/mdate-sh b/config/mdate-sh
index c079aed3e..b610b47a6 100755
--- a/config/mdate-sh
+++ b/config/mdate-sh
@@ -1,6 +1,6 @@
#!/bin/sh
# Get modification time of a file or directory and pretty-print it.
-# Copyright 1995, 1996, 1997 Free Software Foundation, Inc.
+# Copyright (C) 1995, 1996, 1997, 2003 Free Software Foundation, Inc.
# written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, June 1995
#
# This program is free software; you can redistribute it and/or modify
@@ -30,24 +30,38 @@ export LC_ALL
LC_TIME=C
export LC_TIME
-# Get the extended ls output of the file or directory.
-# On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.
+save_arg1="$1"
+
+# Find out how to get the extended ls output of a file or directory.
if ls -L /dev/null 1>/dev/null 2>&1; then
- set - x`ls -L -l -d $1`
+ ls_command='ls -L -l -d'
else
- set - x`ls -l -d $1`
+ ls_command='ls -l -d'
fi
-# The month is at least the fourth argument
-# (3 shifts here, the next inside the loop).
-shift
-shift
-shift
-# Find the month. Next argument is day, followed by the year or time.
+# A `ls -l' line looks as follows on OS/2.
+# drwxrwx--- 0 Aug 11 2001 foo
+# This differs from Unix, which adds ownership information.
+# drwxrwx--- 2 root root 4096 Aug 11 2001 foo
+#
+# To find the date, we split the line on spaces and iterate on words
+# until we find a month. This cannot work with files whose owner is a
+# user named `Jan', or `Feb', etc. However, it's unlikely that `/'
+# will be owned by a user whose name is a month. So we first look at
+# the extended ls output of the root directory to decide how many
+# words should be skipped to get the date.
+
+# On HPUX /bin/sh, "set" interprets "-rw-r--r--" as options, so the "x" below.
+set - x`$ls_command /`
+
+# Find which argument is the month.
month=
+command=
until test $month
do
shift
+ # Add another shift to the command.
+ command="$command shift;"
case $1 in
Jan) month=January; nummonth=1;;
Feb) month=February; nummonth=2;;
@@ -64,6 +78,28 @@ do
esac
done
+# Get the extended ls output of the file or directory.
+set - x`eval "$ls_command \"\$save_arg1\""`
+
+# Remove all preceding arguments
+eval $command
+
+# Get the month. Next argument is day, followed by the year or time.
+case $1 in
+ Jan) month=January; nummonth=1;;
+ Feb) month=February; nummonth=2;;
+ Mar) month=March; nummonth=3;;
+ Apr) month=April; nummonth=4;;
+ May) month=May; nummonth=5;;
+ Jun) month=June; nummonth=6;;
+ Jul) month=July; nummonth=7;;
+ Aug) month=August; nummonth=8;;
+ Sep) month=September; nummonth=9;;
+ Oct) month=October; nummonth=10;;
+ Nov) month=November; nummonth=11;;
+ Dec) month=December; nummonth=12;;
+esac
+
day=$2
# Here we have to deal with the problem that the ls output gives either