diff options
Diffstat (limited to 'build-aux/mdate-sh')
| -rwxr-xr-x | build-aux/mdate-sh | 75 |
1 files changed, 37 insertions, 38 deletions
diff --git a/build-aux/mdate-sh b/build-aux/mdate-sh index e6d572d4..22396e40 100755 --- a/build-aux/mdate-sh +++ b/build-aux/mdate-sh @@ -1,9 +1,10 @@ #!/bin/sh -# Get modification time of a file or directory and pretty-print it. +# Get modification time of a file or directory, or value of +# $SOURCE_DATE_EPOCH, and pretty-print it, formatted like 1 January 2000. -scriptversion=2018-03-07.03; # UTC +scriptversion=2025-06-25.21; # UTC -# Copyright (C) 1995-2021 Free Software Foundation, Inc. +# Copyright (C) 1995-2025 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 @@ -50,21 +51,46 @@ Pretty-print the modification day of FILE, in the format: 1 January 1970 Report bugs to <bug-automake@gnu.org>. +GNU Automake home page: <https://www.gnu.org/software/automake/>. +General help using GNU software: <https://www.gnu.org/gethelp/>. EOF exit $? ;; -v | --v*) - echo "mdate-sh $scriptversion" + echo "mdate-sh (GNU Automake) $scriptversion" exit $? ;; esac +# Warn if more than one file given. +if test $# -ne 1; then + echo "$0: warning: multiple files given, using first: $*" >&2 +fi + error () { echo "$0: $1" >&2 exit 1 } +# set $month ("January") and $nummonth (1) given arg MON ("Jan"). +mon_to_month () +{ + case $1 in + Jan) month=January; nummonth=1;; + Feb) month=February; nummonth=2;; + Mar) month=March; nummonth=3;; + Apr) month=April; nummonth=4;; + May) month=May; nummonth=5;; + Jun) month=June; nummonth=6;; + Jul) month=July; nummonth=7;; + Aug) month=August; nummonth=8;; + Sep) month=September; nummonth=9;; + Oct) month=October; nummonth=10;; + Nov) month=November; nummonth=11;; + Dec) month=December; nummonth=12;; + esac +} # Prevent date giving response in another language. LANG=C @@ -78,6 +104,7 @@ export LC_TIME TZ=UTC0 export TZ +# # GNU ls changes its time format in response to the TIME_STYLE # variable. Since we cannot assume 'unset' works, revert this # variable to its documented default. @@ -123,20 +150,7 @@ do shift # Add another shift to the command. command="$command shift;" - 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 + mon_to_month $1 done test -n "$month" || error "failed parsing '$ls_command /' output" @@ -150,7 +164,6 @@ eval $command # Because of the dummy argument above, month is in $2. # # On a POSIX system, we should have -# # $# = 5 # $1 = file size # $2 = month @@ -159,7 +172,6 @@ eval $command # $5 = filename # # On Darwin 7.7.0 and 7.6.0, we have -# # $# = 4 # $1 = day # $2 = month @@ -167,20 +179,7 @@ eval $command # $4 = filename # Get the month. -case $2 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 +mon_to_month $2 case $3 in ???*) day=$1;; @@ -205,9 +204,9 @@ case $3 in Nov) nummonthtod=11;; Dec) nummonthtod=12;; esac - # For the first six month of the year the time notation can also + # For the first six months of the year the time notation can also # be used for files modified in the last year. - if (expr $nummonth \> $nummonthtod) > /dev/null; + if (expr $nummonth \> $nummonthtod) >/dev/null; then year=`expr $year - 1` fi;; @@ -220,9 +219,9 @@ echo $day $month $year # Local Variables: # mode: shell-script # sh-indentation: 2 -# eval: (add-hook 'before-save-hook 'time-stamp) +# eval: (add-hook 'before-save-hook 'time-stamp nil t) # time-stamp-start: "scriptversion=" -# time-stamp-format: "%:y-%02m-%02d.%02H" +# time-stamp-format: "%Y-%02m-%02d.%02H" # time-stamp-time-zone: "UTC0" # time-stamp-end: "; # UTC" # End: |