Mercurial > gnulib
changeset 30187:74714af7b913
Copy --version support from gnulib-tool to posix-modules.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Fri, 26 Sep 2008 20:35:36 +0200 |
| parents | c77350457755 |
| children | 351557079be5 |
| files | ChangeLog posix-modules |
| diffstat | 2 files changed, 184 insertions(+), 72 deletions(-) [+] |
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--- a/ChangeLog Fri Sep 26 20:31:48 2008 +0200 +++ b/ChangeLog Fri Sep 26 20:35:36 2008 +0200 @@ -1,3 +1,11 @@ +2008-09-26 Bruno Haible <bruno@clisp.org> + + * posix-modules (cvsdatestamp, last_checkin_date, version): Remove + variables. + (func_version): Essentially copied from gnulib-tool. + (func_exit, func_gnulib_dir, func_tmpdir, func_fatal_error, + func_readlink): Copied from gnulib-tool. + 2008-09-26 Bruno Haible <bruno@clisp.org> * gnulib-tool (func_version): Change directory to $gnulib_dir before
--- a/posix-modules Fri Sep 26 20:31:48 2008 +0200 +++ b/posix-modules Fri Sep 26 20:35:36 2008 +0200 @@ -18,9 +18,6 @@ progname=$0 package=gnulib -cvsdatestamp='$Date: 2007-09-11 00:40:16 $' -last_checkin_date=`echo "$cvsdatestamp" | sed -e 's,^\$[D]ate: ,,'` -version=`echo "$last_checkin_date" | sed -e 's/ .*$//' -e 's,/,-,g'` # func_usage # outputs to stdout the --help usage message. @@ -36,85 +33,192 @@ # outputs to stdout the --version message. func_version () { - year=`echo "$last_checkin_date" | sed -e 's,/.*$,,'` + func_gnulib_dir + if test -d "$gnulib_dir"/.git \ + && (git --version) >/dev/null 2>/dev/null \ + && (date --version) >/dev/null 2>/dev/null; then + # gnulib checked out from git. + sed_extract_first_date='/^Date/{ +s/^Date:[ ]*//p +q +}' + date=`cd "$gnulib_dir" && git log ChangeLog | sed -n -e "$sed_extract_first_date"` + # Turn "Fri Mar 21 07:16:51 2008 -0600" into "Mar 21 2008 07:16:51 -0600". + sed_year_before_time='s/^[^ ]* \([^ ]*\) \([0-9]*\) \([0-9:]*\) \([0-9]*\) /\1 \2 \4 \3 /' + date=`echo "$date" | sed -e "$sed_year_before_time"` + # Use GNU date to compute the time in GMT. + date=`date -d "$date" -u +"%Y-%m-%d %H:%M:%S"` + version=' '`cd "$gnulib_dir" && ./build-aux/git-version-gen /dev/null | sed -e 's/-dirty/-modified/'` + else + if test -d "$gnulib_dir"/CVS \ + && (cvs --version) >/dev/null 2>/dev/null; then + # gnulib checked out from CVS. + sed_extract_first_date='/^date: /{ +s/^date: \([0-9][0-9][0-9][0-9]\).\([0-9][0-9]\).\([0-9][0-9]\) \([0-9][0-9]:[0-9][0-9]:[0-9][0-9]\).*/\1-\2-\3 \4/p +q +}' + date=`cd "$gnulib_dir" && cvs log -N ChangeLog 2>/dev/null | sed -n -e "$sed_extract_first_date"` + else + # gnulib copy without versioning information. + date=`sed -e 's/ .*//;q' "$gnulib_dir"/ChangeLog` + fi + version= + fi + year=`"$gnulib_dir"/build-aux/mdate-sh "$self_abspathname" | sed 's,^.* ,,'` echo "\ -$progname (GNU $package) $version +gnulib-tool (GNU $package $date)$version Copyright (C) $year Free Software Foundation, Inc. -This is free software; see the source for copying conditions. There is NO -warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> +This is free software: you are free to change and redistribute it. +There is NO WARRANTY, to the extent permitted by law. + Written by" "Bruno Haible" } -case "$0" in - /*) self_abspathname="$0" ;; - */*) self_abspathname=`pwd`/"$0" ;; - *) - # Look in $PATH. - # Iterate through the elements of $PATH. - # We use IFS=: instead of - # for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'` - # because the latter does not work when some PATH element contains spaces. - # We use a canonicalized $pathx instead of $PATH, because empty PATH - # elements are by definition equivalent to '.', however field splitting - # according to IFS=: loses empty fields in many shells: - # - /bin/sh on OSF/1 and Solaris loses all empty fields (at the - # beginning, at the end, and in the middle), - # - /bin/sh on IRIX and /bin/ksh on IRIX and OSF/1 lose empty fields - # at the beginning and at the end, - # - GNU bash, /bin/sh on AIX and HP-UX, and /bin/ksh on AIX, HP-UX, - # Solaris lose empty fields at the end. - # The 'case' statement is an optimization, to avoid evaluating the - # explicit canonicalization command when $PATH contains no empty fields. - self_abspathname= - if test "${PATH_SEPARATOR+set}" != set; then - func_tmpdir - { echo "#! /bin/sh"; echo "exit 0"; } > "$tmp"/conf.sh - chmod +x "$tmp"/conf.sh - if (PATH="/nonexistent;$tmp"; conf.sh) >/dev/null 2>&1; then - PATH_SEPARATOR=';' +# func_exit STATUS +# exits with a given status. +# This function needs to be used, rather than 'exit', when a 'trap' handler is +# in effect that refers to $?. +func_exit () +{ + (exit $1); exit $1 +} + +# func_gnulib_dir +# locates the directory where the gnulib repository lives +# Sets variables +# - self_abspathname absolute pathname of gnulib-tool +# - gnulib_dir absolute pathname of gnulib repository +func_gnulib_dir () +{ + case "$0" in + /*) self_abspathname="$0" ;; + */*) self_abspathname=`pwd`/"$0" ;; + *) + # Look in $PATH. + # Iterate through the elements of $PATH. + # We use IFS=: instead of + # for d in `echo ":$PATH:" | sed -e 's/:::*/:.:/g' | sed -e 's/:/ /g'` + # because the latter does not work when some PATH element contains spaces. + # We use a canonicalized $pathx instead of $PATH, because empty PATH + # elements are by definition equivalent to '.', however field splitting + # according to IFS=: loses empty fields in many shells: + # - /bin/sh on OSF/1 and Solaris loses all empty fields (at the + # beginning, at the end, and in the middle), + # - /bin/sh on IRIX and /bin/ksh on IRIX and OSF/1 lose empty fields + # at the beginning and at the end, + # - GNU bash, /bin/sh on AIX and HP-UX, and /bin/ksh on AIX, HP-UX, + # Solaris lose empty fields at the end. + # The 'case' statement is an optimization, to avoid evaluating the + # explicit canonicalization command when $PATH contains no empty fields. + self_abspathname= + if test "${PATH_SEPARATOR+set}" != set; then + func_tmpdir + { echo "#! /bin/sh"; echo "exit 0"; } > "$tmp"/conf.sh + chmod +x "$tmp"/conf.sh + if (PATH="/nonexistent;$tmp"; conf.sh) >/dev/null 2>&1; then + PATH_SEPARATOR=';' + else + PATH_SEPARATOR=: + fi + rm -rf "$tmp" + fi + if test "$PATH_SEPARATOR" = ";"; then + # On Windows, programs are searched in "." before $PATH. + pathx=".;$PATH" else - PATH_SEPARATOR=: + # On Unix, we have to convert empty PATH elements to ".". + pathx="$PATH" + case :$PATH: in + *::*) + pathx=`echo ":$PATH:" | sed -e 's/:::*/:.:/g' -e 's/^://' -e 's/:\$//'` + ;; + esac fi - rm -rf "$tmp" - fi - if test "$PATH_SEPARATOR" = ";"; then - # On Windows, programs are searched in "." before $PATH. - pathx=".;$PATH" - else - # On Unix, we have to convert empty PATH elements to ".". - pathx="$PATH" - case :$PATH: in - *::*) - pathx=`echo ":$PATH:" | sed -e 's/:::*/:.:/g' -e 's/^://' -e 's/:\$//'` - ;; - esac - fi - save_IFS="$IFS" - IFS="$PATH_SEPARATOR" - for d in $pathx; do + save_IFS="$IFS" + IFS="$PATH_SEPARATOR" + for d in $pathx; do + IFS="$save_IFS" + test -z "$d" && d=. + if test -x "$d/$0" && test ! -d "$d/$0"; then + self_abspathname="$d/$0" + break + fi + done IFS="$save_IFS" - test -z "$d" && d=. - if test -x "$d/$0" && test ! -d "$d/$0"; then - self_abspathname="$d/$0" - break + if test -z "$self_abspathname"; then + func_fatal_error "could not locate the gnulib-tool program - how did you invoke it?" fi - done - IFS="$save_IFS" - if test -z "$self_abspathname"; then - func_fatal_error "could not locate the posix-modules program - how did you invoke it?" - fi - ;; -esac -while test -h "$self_abspathname"; do - # Resolve symbolic link. - linkval=`func_readlink "$self_abspathname"` - test -n "$linkval" || break - case "$linkval" in - /* ) self_abspathname="$linkval" ;; - * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;; + ;; esac -done -gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'` + while test -h "$self_abspathname"; do + # Resolve symbolic link. + linkval=`func_readlink "$self_abspathname"` + test -n "$linkval" || break + case "$linkval" in + /* ) self_abspathname="$linkval" ;; + * ) self_abspathname=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'`/"$linkval" ;; + esac + done + gnulib_dir=`echo "$self_abspathname" | sed -e 's,/[^/]*$,,'` +} + +# func_tmpdir +# creates a temporary directory. +# Sets variable +# - tmp pathname of freshly created temporary directory +func_tmpdir () +{ + # Use the environment variable TMPDIR, falling back to /tmp. This allows + # users to specify a different temporary directory, for example, if their + # /tmp is filled up or too small. + : ${TMPDIR=/tmp} + { + # Use the mktemp program if available. If not available, hide the error + # message. + tmp=`(umask 077 && mktemp -d "$TMPDIR/glXXXXXX") 2>/dev/null` && + test -n "$tmp" && test -d "$tmp" + } || + { + # Use a simple mkdir command. It is guaranteed to fail if the directory + # already exists. $RANDOM is bash specific and expands to empty in shells + # other than bash, ksh and zsh. Its use does not increase security; + # rather, it minimizes the probability of failure in a very cluttered /tmp + # directory. + tmp=$TMPDIR/gl$$-$RANDOM + (umask 077 && mkdir "$tmp") + } || + { + echo "$0: cannot create a temporary directory in $TMPDIR" >&2 + func_exit 1 + } +} + +# func_fatal_error message +# outputs to stderr a fatal error message, and terminates the program. +func_fatal_error () +{ + echo "gnulib-tool: *** $1" 1>&2 + echo "gnulib-tool: *** Stop." 1>&2 + func_exit 1 +} + +# func_readlink SYMLINK +# outputs the target of the given symlink. +if (type -p readlink) > /dev/null 2>&1; then + func_readlink () + { + # Use the readlink program from GNU coreutils. + readlink "$1" + } +else + func_readlink () + { + # Use two sed invocations. A single sed -n -e 's,^.* -> \(.*\)$,\1,p' + # would do the wrong thing if the link target contains " -> ". + LC_ALL=C ls -l "$1" | sed -e 's, -> ,#%%#,' | sed -n -e 's,^.*#%%#\(.*\)$,\1,p' + } +fi # Command-line option processing. while test $# -gt 0; do