1466 lines
42 KiB
Bash
1466 lines
42 KiB
Bash
# Set a version string for this script.
|
||
scriptversion=2019-02-19.15; # UTC
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||
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# General shell script boiler plate, and helper functions.
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# Written by Gary V. Vaughan, 2004
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# This is free software. There is NO warranty; not even for
|
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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#
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# Copyright (C) 2004-2019, 2021 Bootstrap Authors
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#
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# This file is dual licensed under the terms of the MIT license
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||
# <https://opensource.org/license/MIT>, and GPL version 2 or later
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||
# <http://www.gnu.org/licenses/gpl-2.0.html>. You must apply one of
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# these licenses when using or redistributing this software or any of
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# the files within it. See the URLs above, or the file `LICENSE`
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# included in the Bootstrap distribution for the full license texts.
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# Please report bugs or propose patches to:
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# <https://github.com/gnulib-modules/bootstrap/issues>
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||
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## ------ ##
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## Usage. ##
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||
## ------ ##
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# Evaluate this file near the top of your script to gain access to
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# the functions and variables defined here:
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#
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# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
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#
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# If you need to override any of the default environment variable
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||
# settings, do that before evaluating this file.
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||
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## -------------------- ##
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## Shell normalisation. ##
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## -------------------- ##
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# Some shells need a little help to be as Bourne compatible as possible.
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# Before doing anything else, make sure all that help has been provided!
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DUALCASE=1; export DUALCASE # for MKS sh
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if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
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emulate sh
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NULLCMD=:
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# Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
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# is contrary to our usage. Disable this feature.
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alias -g '${1+"$@"}'='"$@"'
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setopt NO_GLOB_SUBST
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else
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case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
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fi
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# NLS nuisances: We save the old values in case they are required later.
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_G_user_locale=
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_G_safe_locale=
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for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
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do
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eval "if test set = \"\${$_G_var+set}\"; then
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save_$_G_var=\$$_G_var
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$_G_var=C
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export $_G_var
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_G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
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_G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
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fi"
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done
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# These NLS vars are set unconditionally (bootstrap issue #24). Unset those
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# in case the environment reset is needed later and the $save_* variant is not
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# defined (see the code above).
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LC_ALL=C
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LANGUAGE=C
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export LANGUAGE LC_ALL
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# Make sure IFS has a sensible default
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sp=' '
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nl='
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'
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IFS="$sp $nl"
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# There are apparently some retarded systems that use ';' as a PATH separator!
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if test "${PATH_SEPARATOR+set}" != set; then
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PATH_SEPARATOR=:
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(PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
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(PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
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PATH_SEPARATOR=';'
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}
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fi
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# func_unset VAR
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# --------------
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# Portably unset VAR.
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# In some shells, an 'unset VAR' statement leaves a non-zero return
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# status if VAR is already unset, which might be problematic if the
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# statement is used at the end of a function (thus poisoning its return
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# value) or when 'set -e' is active (causing even a spurious abort of
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# the script in this case).
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func_unset ()
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{
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{ eval $1=; (eval unset $1) >/dev/null 2>&1 && eval unset $1 || : ; }
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}
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||
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||
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# Make sure CDPATH doesn't cause `cd` commands to output the target dir.
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func_unset CDPATH
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# Make sure ${,E,F}GREP behave sanely.
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func_unset GREP_OPTIONS
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## ------------------------- ##
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## Locate command utilities. ##
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## ------------------------- ##
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# func_executable_p FILE
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# ----------------------
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# Check that FILE is an executable regular file.
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func_executable_p ()
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{
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test -f "$1" && test -x "$1"
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}
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||
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# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
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# --------------------------------------------
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# Search for either a program that responds to --version with output
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# containing "GNU", or else returned by CHECK_FUNC otherwise, by
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# trying all the directories in PATH with each of the elements of
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# PROGS_LIST.
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#
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# CHECK_FUNC should accept the path to a candidate program, and
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# set $func_check_prog_result if it truncates its output less than
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# $_G_path_prog_max characters.
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func_path_progs ()
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{
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_G_progs_list=$1
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_G_check_func=$2
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_G_PATH=${3-"$PATH"}
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_G_path_prog_max=0
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_G_path_prog_found=false
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_G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
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for _G_dir in $_G_PATH; do
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IFS=$_G_save_IFS
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test -z "$_G_dir" && _G_dir=.
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for _G_prog_name in $_G_progs_list; do
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for _exeext in '' .EXE; do
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_G_path_prog=$_G_dir/$_G_prog_name$_exeext
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func_executable_p "$_G_path_prog" || continue
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case `"$_G_path_prog" --version 2>&1` in
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*GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
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*) $_G_check_func $_G_path_prog
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func_path_progs_result=$func_check_prog_result
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;;
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esac
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$_G_path_prog_found && break 3
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done
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done
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done
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IFS=$_G_save_IFS
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test -z "$func_path_progs_result" && {
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echo "no acceptable sed could be found in \$PATH" >&2
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exit 1
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}
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}
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||
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# We want to be able to use the functions in this file before configure
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# has figured out where the best binaries are kept, which means we have
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# to search for them ourselves - except when the results are already set
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# where we skip the searches.
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# Unless the user overrides by setting SED, search the path for either GNU
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# sed, or the sed that truncates its output the least.
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test -z "$SED" && {
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_G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
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for _G_i in 1 2 3 4 5 6 7; do
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_G_sed_script=$_G_sed_script$nl$_G_sed_script
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done
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echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
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_G_sed_script=
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func_check_prog_sed ()
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{
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_G_path_prog=$1
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_G_count=0
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printf 0123456789 >conftest.in
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while :
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do
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cat conftest.in conftest.in >conftest.tmp
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mv conftest.tmp conftest.in
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cp conftest.in conftest.nl
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echo '' >> conftest.nl
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"$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
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diff conftest.out conftest.nl >/dev/null 2>&1 || break
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_G_count=`expr $_G_count + 1`
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if test "$_G_count" -gt "$_G_path_prog_max"; then
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# Best one so far, save it but keep looking for a better one
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func_check_prog_result=$_G_path_prog
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_G_path_prog_max=$_G_count
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fi
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# 10*(2^10) chars as input seems more than enough
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test 10 -lt "$_G_count" && break
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done
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rm -f conftest.in conftest.tmp conftest.nl conftest.out
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}
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func_path_progs "sed gsed" func_check_prog_sed "$PATH:/usr/xpg4/bin"
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rm -f conftest.sed
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SED=$func_path_progs_result
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}
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||
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||
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# Unless the user overrides by setting GREP, search the path for either GNU
|
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# grep, or the grep that truncates its output the least.
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test -z "$GREP" && {
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func_check_prog_grep ()
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{
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_G_path_prog=$1
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_G_count=0
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_G_path_prog_max=0
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printf 0123456789 >conftest.in
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while :
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||
do
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cat conftest.in conftest.in >conftest.tmp
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mv conftest.tmp conftest.in
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cp conftest.in conftest.nl
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echo 'GREP' >> conftest.nl
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"$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
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||
diff conftest.out conftest.nl >/dev/null 2>&1 || break
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_G_count=`expr $_G_count + 1`
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||
if test "$_G_count" -gt "$_G_path_prog_max"; then
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# Best one so far, save it but keep looking for a better one
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||
func_check_prog_result=$_G_path_prog
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_G_path_prog_max=$_G_count
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||
fi
|
||
# 10*(2^10) chars as input seems more than enough
|
||
test 10 -lt "$_G_count" && break
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||
done
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rm -f conftest.in conftest.tmp conftest.nl conftest.out
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}
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func_path_progs "grep ggrep" func_check_prog_grep "$PATH:/usr/xpg4/bin"
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GREP=$func_path_progs_result
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}
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## ------------------------------- ##
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||
## User overridable command paths. ##
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||
## ------------------------------- ##
|
||
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||
# All uppercase variable names are used for environment variables. These
|
||
# variables can be overridden by the user before calling a script that
|
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# uses them if a suitable command of that name is not already available
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# in the command search PATH.
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||
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||
: ${CP="cp -f"}
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: ${ECHO="printf %s\n"}
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: ${EGREP="$GREP -E"}
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: ${FGREP="$GREP -F"}
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: ${LN_S="ln -s"}
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||
: ${MAKE="make"}
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||
: ${MKDIR="mkdir"}
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||
: ${MV="mv -f"}
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||
: ${RM="rm -f"}
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||
: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
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||
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||
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## -------------------- ##
|
||
## Useful sed snippets. ##
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||
## -------------------- ##
|
||
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||
sed_dirname='s|/[^/]*$||'
|
||
sed_basename='s|^.*/||'
|
||
|
||
# Sed substitution that helps us do robust quoting. It backslashifies
|
||
# metacharacters that are still active within double-quoted strings.
|
||
sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
|
||
|
||
# Same as above, but do not quote variable references.
|
||
sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
|
||
|
||
# Sed substitution that turns a string into a regex matching for the
|
||
# string literally.
|
||
sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
|
||
|
||
# Sed substitution that converts a w32 file name or path
|
||
# that contains forward slashes, into one that contains
|
||
# (escaped) backslashes. A very naive implementation.
|
||
sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
|
||
|
||
# Re-'\' parameter expansions in output of sed_double_quote_subst that
|
||
# were '\'-ed in input to the same. If an odd number of '\' preceded a
|
||
# '$' in input to sed_double_quote_subst, that '$' was protected from
|
||
# expansion. Since each input '\' is now two '\'s, look for any number
|
||
# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'.
|
||
_G_bs='\\'
|
||
_G_bs2='\\\\'
|
||
_G_bs4='\\\\\\\\'
|
||
_G_dollar='\$'
|
||
sed_double_backslash="\
|
||
s/$_G_bs4/&\\
|
||
/g
|
||
s/^$_G_bs2$_G_dollar/$_G_bs&/
|
||
s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
|
||
s/\n//g"
|
||
|
||
# require_check_ifs_backslash
|
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# ---------------------------
|
||
# Check if we can use backslash as IFS='\' separator, and set
|
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# $check_ifs_backshlash_broken to ':' or 'false'.
|
||
require_check_ifs_backslash=func_require_check_ifs_backslash
|
||
func_require_check_ifs_backslash ()
|
||
{
|
||
_G_save_IFS=$IFS
|
||
IFS='\'
|
||
_G_check_ifs_backshlash='a\\b'
|
||
for _G_i in $_G_check_ifs_backshlash
|
||
do
|
||
case $_G_i in
|
||
a)
|
||
check_ifs_backshlash_broken=false
|
||
;;
|
||
'')
|
||
break
|
||
;;
|
||
*)
|
||
check_ifs_backshlash_broken=:
|
||
break
|
||
;;
|
||
esac
|
||
done
|
||
IFS=$_G_save_IFS
|
||
require_check_ifs_backslash=:
|
||
}
|
||
|
||
|
||
## ----------------- ##
|
||
## Global variables. ##
|
||
## ----------------- ##
|
||
|
||
# Except for the global variables explicitly listed below, the following
|
||
# functions in the '^func_' namespace, and the '^require_' namespace
|
||
# variables initialised in the 'Resource management' section, sourcing
|
||
# this file will not pollute your global namespace with anything
|
||
# else. There's no portable way to scope variables in Bourne shell
|
||
# though, so actually running these functions will sometimes place
|
||
# results into a variable named after the function, and often use
|
||
# temporary variables in the '^_G_' namespace. If you are careful to
|
||
# avoid using those namespaces casually in your sourcing script, things
|
||
# should continue to work as you expect. And, of course, you can freely
|
||
# overwrite any of the functions or variables defined here before
|
||
# calling anything to customize them.
|
||
|
||
EXIT_SUCCESS=0
|
||
EXIT_FAILURE=1
|
||
EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
|
||
EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
|
||
|
||
# Allow overriding, eg assuming that you follow the convention of
|
||
# putting '$debug_cmd' at the start of all your functions, you can get
|
||
# bash to show function call trace with:
|
||
#
|
||
# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
|
||
debug_cmd=${debug_cmd-":"}
|
||
exit_cmd=:
|
||
|
||
# By convention, finish your script with:
|
||
#
|
||
# exit $exit_status
|
||
#
|
||
# so that you can set exit_status to non-zero if you want to indicate
|
||
# something went wrong during execution without actually bailing out at
|
||
# the point of failure.
|
||
exit_status=$EXIT_SUCCESS
|
||
|
||
# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
|
||
# is ksh but when the shell is invoked as "sh" and the current value of
|
||
# the _XPG environment variable is not equal to 1 (one), the special
|
||
# positional parameter $0, within a function call, is the name of the
|
||
# function.
|
||
progpath=$0
|
||
|
||
# The name of this program.
|
||
progname=`$ECHO "$progpath" |$SED "$sed_basename"`
|
||
|
||
# Make sure we have an absolute progpath for reexecution:
|
||
case $progpath in
|
||
[\\/]*|[A-Za-z]:\\*) ;;
|
||
*[\\/]*)
|
||
progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
|
||
progdir=`cd "$progdir" && pwd`
|
||
progpath=$progdir/$progname
|
||
;;
|
||
*)
|
||
_G_IFS=$IFS
|
||
IFS=${PATH_SEPARATOR-:}
|
||
for progdir in $PATH; do
|
||
IFS=$_G_IFS
|
||
test -x "$progdir/$progname" && break
|
||
done
|
||
IFS=$_G_IFS
|
||
test -n "$progdir" || progdir=`pwd`
|
||
progpath=$progdir/$progname
|
||
;;
|
||
esac
|
||
|
||
|
||
## ----------------- ##
|
||
## Standard options. ##
|
||
## ----------------- ##
|
||
|
||
# The following options affect the operation of the functions defined
|
||
# below, and should be set appropriately depending on run-time para-
|
||
# meters passed on the command line.
|
||
|
||
opt_dry_run=false
|
||
opt_quiet=false
|
||
opt_verbose=false
|
||
|
||
# Categories 'all' and 'none' are always available. Append any others
|
||
# you will pass as the first argument to func_warning from your own
|
||
# code.
|
||
warning_categories=
|
||
|
||
# By default, display warnings according to 'opt_warning_types'. Set
|
||
# 'warning_func' to ':' to elide all warnings, or func_fatal_error to
|
||
# treat the next displayed warning as a fatal error.
|
||
warning_func=func_warn_and_continue
|
||
|
||
# Set to 'all' to display all warnings, 'none' to suppress all
|
||
# warnings, or a space delimited list of some subset of
|
||
# 'warning_categories' to display only the listed warnings.
|
||
opt_warning_types=all
|
||
|
||
|
||
## -------------------- ##
|
||
## Resource management. ##
|
||
## -------------------- ##
|
||
|
||
# This section contains definitions for functions that each ensure a
|
||
# particular resource (a file, or a non-empty configuration variable for
|
||
# example) is available, and if appropriate to extract default values
|
||
# from pertinent package files. Call them using their associated
|
||
# 'require_*' variable to ensure that they are executed, at most, once.
|
||
#
|
||
# It's entirely deliberate that calling these functions can set
|
||
# variables that don't obey the namespace limitations obeyed by the rest
|
||
# of this file, in order that that they be as useful as possible to
|
||
# callers.
|
||
|
||
|
||
# require_term_colors
|
||
# -------------------
|
||
# Allow display of bold text on terminals that support it.
|
||
require_term_colors=func_require_term_colors
|
||
func_require_term_colors ()
|
||
{
|
||
$debug_cmd
|
||
|
||
test -t 1 && {
|
||
# COLORTERM and USE_ANSI_COLORS environment variables take
|
||
# precedence, because most terminfo databases neglect to describe
|
||
# whether color sequences are supported.
|
||
test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
|
||
|
||
if test 1 = "$USE_ANSI_COLORS"; then
|
||
# Standard ANSI escape sequences
|
||
tc_reset='[0m'
|
||
tc_bold='[1m'; tc_standout='[7m'
|
||
tc_red='[31m'; tc_green='[32m'
|
||
tc_blue='[34m'; tc_cyan='[36m'
|
||
else
|
||
# Otherwise trust the terminfo database after all.
|
||
test -n "`tput sgr0 2>/dev/null`" && {
|
||
tc_reset=`tput sgr0`
|
||
test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
|
||
tc_standout=$tc_bold
|
||
test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
|
||
test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
|
||
test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
|
||
test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
|
||
test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
|
||
}
|
||
fi
|
||
}
|
||
|
||
require_term_colors=:
|
||
}
|
||
|
||
|
||
## ----------------- ##
|
||
## Function library. ##
|
||
## ----------------- ##
|
||
|
||
# This section contains a variety of useful functions to call in your
|
||
# scripts. Take note of the portable wrappers for features provided by
|
||
# some modern shells, which will fall back to slower equivalents on
|
||
# less featureful shells.
|
||
|
||
|
||
# func_append VAR VALUE
|
||
# ---------------------
|
||
# Append VALUE onto the existing contents of VAR.
|
||
|
||
# We should try to minimise forks, especially on Windows where they are
|
||
# unreasonably slow, so skip the feature probes when bash or zsh are
|
||
# being used:
|
||
if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
|
||
: ${_G_HAVE_ARITH_OP="yes"}
|
||
: ${_G_HAVE_XSI_OPS="yes"}
|
||
# The += operator was introduced in bash 3.1
|
||
case $BASH_VERSION in
|
||
[12].* | 3.0 | 3.0*) ;;
|
||
*)
|
||
: ${_G_HAVE_PLUSEQ_OP="yes"}
|
||
;;
|
||
esac
|
||
fi
|
||
|
||
# _G_HAVE_PLUSEQ_OP
|
||
# Can be empty, in which case the shell is probed, "yes" if += is
|
||
# useable or anything else if it does not work.
|
||
test -z "$_G_HAVE_PLUSEQ_OP" \
|
||
&& (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
|
||
&& _G_HAVE_PLUSEQ_OP=yes
|
||
|
||
if test yes = "$_G_HAVE_PLUSEQ_OP"
|
||
then
|
||
# This is an XSI compatible shell, allowing a faster implementation...
|
||
eval 'func_append ()
|
||
{
|
||
$debug_cmd
|
||
|
||
eval "$1+=\$2"
|
||
}'
|
||
else
|
||
# ...otherwise fall back to using expr, which is often a shell builtin.
|
||
func_append ()
|
||
{
|
||
$debug_cmd
|
||
|
||
eval "$1=\$$1\$2"
|
||
}
|
||
fi
|
||
|
||
|
||
# func_append_quoted VAR VALUE
|
||
# ----------------------------
|
||
# Quote VALUE and append to the end of shell variable VAR, separated
|
||
# by a space.
|
||
if test yes = "$_G_HAVE_PLUSEQ_OP"; then
|
||
eval 'func_append_quoted ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_quote_arg pretty "$2"
|
||
eval "$1+=\\ \$func_quote_arg_result"
|
||
}'
|
||
else
|
||
func_append_quoted ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_quote_arg pretty "$2"
|
||
eval "$1=\$$1\\ \$func_quote_arg_result"
|
||
}
|
||
fi
|
||
|
||
|
||
# func_append_uniq VAR VALUE
|
||
# --------------------------
|
||
# Append unique VALUE onto the existing contents of VAR, assuming
|
||
# entries are delimited by the first character of VALUE. For example:
|
||
#
|
||
# func_append_uniq options " --another-option option-argument"
|
||
#
|
||
# will only append to $options if " --another-option option-argument "
|
||
# is not already present somewhere in $options already (note spaces at
|
||
# each end implied by leading space in second argument).
|
||
func_append_uniq ()
|
||
{
|
||
$debug_cmd
|
||
|
||
eval _G_current_value='`$ECHO $'$1'`'
|
||
_G_delim=`expr "$2" : '\(.\)'`
|
||
|
||
case $_G_delim$_G_current_value$_G_delim in
|
||
*"$2$_G_delim"*) ;;
|
||
*) func_append "$@" ;;
|
||
esac
|
||
}
|
||
|
||
|
||
# func_arith TERM...
|
||
# ------------------
|
||
# Set func_arith_result to the result of evaluating TERMs.
|
||
test -z "$_G_HAVE_ARITH_OP" \
|
||
&& (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
|
||
&& _G_HAVE_ARITH_OP=yes
|
||
|
||
if test yes = "$_G_HAVE_ARITH_OP"; then
|
||
eval 'func_arith ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_arith_result=$(( $* ))
|
||
}'
|
||
else
|
||
func_arith ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_arith_result=`expr "$@"`
|
||
}
|
||
fi
|
||
|
||
|
||
# func_basename FILE
|
||
# ------------------
|
||
# Set func_basename_result to FILE with everything up to and including
|
||
# the last / stripped.
|
||
if test yes = "$_G_HAVE_XSI_OPS"; then
|
||
# If this shell supports suffix pattern removal, then use it to avoid
|
||
# forking. Hide the definitions single quotes in case the shell chokes
|
||
# on unsupported syntax...
|
||
_b='func_basename_result=${1##*/}'
|
||
_d='case $1 in
|
||
*/*) func_dirname_result=${1%/*}$2 ;;
|
||
* ) func_dirname_result=$3 ;;
|
||
esac'
|
||
|
||
else
|
||
# ...otherwise fall back to using sed.
|
||
_b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
|
||
_d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
|
||
if test "X$func_dirname_result" = "X$1"; then
|
||
func_dirname_result=$3
|
||
else
|
||
func_append func_dirname_result "$2"
|
||
fi'
|
||
fi
|
||
|
||
eval 'func_basename ()
|
||
{
|
||
$debug_cmd
|
||
|
||
'"$_b"'
|
||
}'
|
||
|
||
|
||
# func_dirname FILE APPEND NONDIR_REPLACEMENT
|
||
# -------------------------------------------
|
||
# Compute the dirname of FILE. If nonempty, add APPEND to the result,
|
||
# otherwise set result to NONDIR_REPLACEMENT.
|
||
eval 'func_dirname ()
|
||
{
|
||
$debug_cmd
|
||
|
||
'"$_d"'
|
||
}'
|
||
|
||
|
||
# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
|
||
# --------------------------------------------------------
|
||
# Perform func_basename and func_dirname in a single function
|
||
# call:
|
||
# dirname: Compute the dirname of FILE. If nonempty,
|
||
# add APPEND to the result, otherwise set result
|
||
# to NONDIR_REPLACEMENT.
|
||
# value returned in "$func_dirname_result"
|
||
# basename: Compute filename of FILE.
|
||
# value retuned in "$func_basename_result"
|
||
# For efficiency, we do not delegate to the functions above but instead
|
||
# duplicate the functionality here.
|
||
eval 'func_dirname_and_basename ()
|
||
{
|
||
$debug_cmd
|
||
|
||
'"$_b"'
|
||
'"$_d"'
|
||
}'
|
||
|
||
|
||
# func_echo ARG...
|
||
# ----------------
|
||
# Echo program name prefixed message.
|
||
func_echo ()
|
||
{
|
||
$debug_cmd
|
||
|
||
_G_message=$*
|
||
|
||
func_echo_IFS=$IFS
|
||
IFS=$nl
|
||
for _G_line in $_G_message; do
|
||
IFS=$func_echo_IFS
|
||
$ECHO "$progname: $_G_line"
|
||
done
|
||
IFS=$func_echo_IFS
|
||
}
|
||
|
||
|
||
# func_echo_all ARG...
|
||
# --------------------
|
||
# Invoke $ECHO with all args, space-separated.
|
||
func_echo_all ()
|
||
{
|
||
$ECHO "$*"
|
||
}
|
||
|
||
|
||
# func_echo_infix_1 INFIX ARG...
|
||
# ------------------------------
|
||
# Echo program name, followed by INFIX on the first line, with any
|
||
# additional lines not showing INFIX.
|
||
func_echo_infix_1 ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$require_term_colors
|
||
|
||
_G_infix=$1; shift
|
||
_G_indent=$_G_infix
|
||
_G_prefix="$progname: $_G_infix: "
|
||
_G_message=$*
|
||
|
||
# Strip color escape sequences before counting printable length
|
||
for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
|
||
do
|
||
test -n "$_G_tc" && {
|
||
_G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
|
||
_G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
|
||
}
|
||
done
|
||
_G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
|
||
|
||
func_echo_infix_1_IFS=$IFS
|
||
IFS=$nl
|
||
for _G_line in $_G_message; do
|
||
IFS=$func_echo_infix_1_IFS
|
||
$ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
|
||
_G_prefix=$_G_indent
|
||
done
|
||
IFS=$func_echo_infix_1_IFS
|
||
}
|
||
|
||
|
||
# func_error ARG...
|
||
# -----------------
|
||
# Echo program name prefixed message to standard error.
|
||
func_error ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$require_term_colors
|
||
|
||
func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
|
||
}
|
||
|
||
|
||
# func_fatal_error ARG...
|
||
# -----------------------
|
||
# Echo program name prefixed message to standard error, and exit.
|
||
func_fatal_error ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_error "$*"
|
||
exit $EXIT_FAILURE
|
||
}
|
||
|
||
|
||
# func_grep EXPRESSION FILENAME
|
||
# -----------------------------
|
||
# Check whether EXPRESSION matches any line of FILENAME, without output.
|
||
func_grep ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$GREP "$1" "$2" >/dev/null 2>&1
|
||
}
|
||
|
||
|
||
# func_len STRING
|
||
# ---------------
|
||
# Set func_len_result to the length of STRING. STRING may not
|
||
# start with a hyphen.
|
||
test -z "$_G_HAVE_XSI_OPS" \
|
||
&& (eval 'x=a/b/c;
|
||
test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
|
||
&& _G_HAVE_XSI_OPS=yes
|
||
|
||
if test yes = "$_G_HAVE_XSI_OPS"; then
|
||
eval 'func_len ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_len_result=${#1}
|
||
}'
|
||
else
|
||
func_len ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
|
||
}
|
||
fi
|
||
|
||
|
||
# func_mkdir_p DIRECTORY-PATH
|
||
# ---------------------------
|
||
# Make sure the entire path to DIRECTORY-PATH is available.
|
||
func_mkdir_p ()
|
||
{
|
||
$debug_cmd
|
||
|
||
_G_directory_path=$1
|
||
_G_dir_list=
|
||
|
||
if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
|
||
|
||
# Protect directory names starting with '-'
|
||
case $_G_directory_path in
|
||
-*) _G_directory_path=./$_G_directory_path ;;
|
||
esac
|
||
|
||
# While some portion of DIR does not yet exist...
|
||
while test ! -d "$_G_directory_path"; do
|
||
# ...make a list in topmost first order. Use a colon delimited
|
||
# list incase some portion of path contains whitespace.
|
||
_G_dir_list=$_G_directory_path:$_G_dir_list
|
||
|
||
# If the last portion added has no slash in it, the list is done
|
||
case $_G_directory_path in */*) ;; *) break ;; esac
|
||
|
||
# ...otherwise throw away the child directory and loop
|
||
_G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
|
||
done
|
||
_G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
|
||
|
||
func_mkdir_p_IFS=$IFS; IFS=:
|
||
for _G_dir in $_G_dir_list; do
|
||
IFS=$func_mkdir_p_IFS
|
||
# mkdir can fail with a 'File exist' error if two processes
|
||
# try to create one of the directories concurrently. Don't
|
||
# stop in that case!
|
||
$MKDIR "$_G_dir" 2>/dev/null || :
|
||
done
|
||
IFS=$func_mkdir_p_IFS
|
||
|
||
# Bail out if we (or some other process) failed to create a directory.
|
||
test -d "$_G_directory_path" || \
|
||
func_fatal_error "Failed to create '$1'"
|
||
fi
|
||
}
|
||
|
||
|
||
# func_mktempdir [BASENAME]
|
||
# -------------------------
|
||
# Make a temporary directory that won't clash with other running
|
||
# libtool processes, and avoids race conditions if possible. If
|
||
# given, BASENAME is the basename for that directory.
|
||
func_mktempdir ()
|
||
{
|
||
$debug_cmd
|
||
|
||
_G_template=${TMPDIR-/tmp}/${1-$progname}
|
||
|
||
if test : = "$opt_dry_run"; then
|
||
# Return a directory name, but don't create it in dry-run mode
|
||
_G_tmpdir=$_G_template-$$
|
||
else
|
||
|
||
# If mktemp works, use that first and foremost
|
||
_G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
|
||
|
||
if test ! -d "$_G_tmpdir"; then
|
||
# Failing that, at least try and use $RANDOM to avoid a race
|
||
_G_tmpdir=$_G_template-${RANDOM-0}$$
|
||
|
||
func_mktempdir_umask=`umask`
|
||
umask 0077
|
||
$MKDIR "$_G_tmpdir"
|
||
umask $func_mktempdir_umask
|
||
fi
|
||
|
||
# If we're not in dry-run mode, bomb out on failure
|
||
test -d "$_G_tmpdir" || \
|
||
func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
|
||
fi
|
||
|
||
$ECHO "$_G_tmpdir"
|
||
}
|
||
|
||
|
||
# func_normal_abspath PATH
|
||
# ------------------------
|
||
# Remove doubled-up and trailing slashes, "." path components,
|
||
# and cancel out any ".." path components in PATH after making
|
||
# it an absolute path.
|
||
func_normal_abspath ()
|
||
{
|
||
$debug_cmd
|
||
|
||
# These SED scripts presuppose an absolute path with a trailing slash.
|
||
_G_pathcar='s|^/\([^/]*\).*$|\1|'
|
||
_G_pathcdr='s|^/[^/]*||'
|
||
_G_removedotparts=':dotsl
|
||
s|/\./|/|g
|
||
t dotsl
|
||
s|/\.$|/|'
|
||
_G_collapseslashes='s|/\{1,\}|/|g'
|
||
_G_finalslash='s|/*$|/|'
|
||
|
||
# Start from root dir and reassemble the path.
|
||
func_normal_abspath_result=
|
||
func_normal_abspath_tpath=$1
|
||
func_normal_abspath_altnamespace=
|
||
case $func_normal_abspath_tpath in
|
||
"")
|
||
# Empty path, that just means $cwd.
|
||
func_stripname '' '/' "`pwd`"
|
||
func_normal_abspath_result=$func_stripname_result
|
||
return
|
||
;;
|
||
# The next three entries are used to spot a run of precisely
|
||
# two leading slashes without using negated character classes;
|
||
# we take advantage of case's first-match behaviour.
|
||
///*)
|
||
# Unusual form of absolute path, do nothing.
|
||
;;
|
||
//*)
|
||
# Not necessarily an ordinary path; POSIX reserves leading '//'
|
||
# and for example Cygwin uses it to access remote file shares
|
||
# over CIFS/SMB, so we conserve a leading double slash if found.
|
||
func_normal_abspath_altnamespace=/
|
||
;;
|
||
/*)
|
||
# Absolute path, do nothing.
|
||
;;
|
||
*)
|
||
# Relative path, prepend $cwd.
|
||
func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
|
||
;;
|
||
esac
|
||
|
||
# Cancel out all the simple stuff to save iterations. We also want
|
||
# the path to end with a slash for ease of parsing, so make sure
|
||
# there is one (and only one) here.
|
||
func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
|
||
-e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
|
||
while :; do
|
||
# Processed it all yet?
|
||
if test / = "$func_normal_abspath_tpath"; then
|
||
# If we ascended to the root using ".." the result may be empty now.
|
||
if test -z "$func_normal_abspath_result"; then
|
||
func_normal_abspath_result=/
|
||
fi
|
||
break
|
||
fi
|
||
func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
|
||
-e "$_G_pathcar"`
|
||
func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
|
||
-e "$_G_pathcdr"`
|
||
# Figure out what to do with it
|
||
case $func_normal_abspath_tcomponent in
|
||
"")
|
||
# Trailing empty path component, ignore it.
|
||
;;
|
||
..)
|
||
# Parent dir; strip last assembled component from result.
|
||
func_dirname "$func_normal_abspath_result"
|
||
func_normal_abspath_result=$func_dirname_result
|
||
;;
|
||
*)
|
||
# Actual path component, append it.
|
||
func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
|
||
;;
|
||
esac
|
||
done
|
||
# Restore leading double-slash if one was found on entry.
|
||
func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
|
||
}
|
||
|
||
|
||
# func_notquiet ARG...
|
||
# --------------------
|
||
# Echo program name prefixed message only when not in quiet mode.
|
||
func_notquiet ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$opt_quiet || func_echo ${1+"$@"}
|
||
|
||
# A bug in bash halts the script if the last line of a function
|
||
# fails when set -e is in force, so we need another command to
|
||
# work around that:
|
||
:
|
||
}
|
||
|
||
|
||
# func_relative_path SRCDIR DSTDIR
|
||
# --------------------------------
|
||
# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
|
||
func_relative_path ()
|
||
{
|
||
$debug_cmd
|
||
|
||
func_relative_path_result=
|
||
func_normal_abspath "$1"
|
||
func_relative_path_tlibdir=$func_normal_abspath_result
|
||
func_normal_abspath "$2"
|
||
func_relative_path_tbindir=$func_normal_abspath_result
|
||
|
||
# Ascend the tree starting from libdir
|
||
while :; do
|
||
# check if we have found a prefix of bindir
|
||
case $func_relative_path_tbindir in
|
||
$func_relative_path_tlibdir)
|
||
# found an exact match
|
||
func_relative_path_tcancelled=
|
||
break
|
||
;;
|
||
$func_relative_path_tlibdir*)
|
||
# found a matching prefix
|
||
func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
|
||
func_relative_path_tcancelled=$func_stripname_result
|
||
if test -z "$func_relative_path_result"; then
|
||
func_relative_path_result=.
|
||
fi
|
||
break
|
||
;;
|
||
*)
|
||
func_dirname $func_relative_path_tlibdir
|
||
func_relative_path_tlibdir=$func_dirname_result
|
||
if test -z "$func_relative_path_tlibdir"; then
|
||
# Have to descend all the way to the root!
|
||
func_relative_path_result=../$func_relative_path_result
|
||
func_relative_path_tcancelled=$func_relative_path_tbindir
|
||
break
|
||
fi
|
||
func_relative_path_result=../$func_relative_path_result
|
||
;;
|
||
esac
|
||
done
|
||
|
||
# Now calculate path; take care to avoid doubling-up slashes.
|
||
func_stripname '' '/' "$func_relative_path_result"
|
||
func_relative_path_result=$func_stripname_result
|
||
func_stripname '/' '/' "$func_relative_path_tcancelled"
|
||
if test -n "$func_stripname_result"; then
|
||
func_append func_relative_path_result "/$func_stripname_result"
|
||
fi
|
||
|
||
# Normalisation. If bindir is libdir, return '.' else relative path.
|
||
if test -n "$func_relative_path_result"; then
|
||
func_stripname './' '' "$func_relative_path_result"
|
||
func_relative_path_result=$func_stripname_result
|
||
fi
|
||
|
||
test -n "$func_relative_path_result" || func_relative_path_result=.
|
||
|
||
:
|
||
}
|
||
|
||
|
||
# func_quote_portable EVAL ARG
|
||
# ----------------------------
|
||
# Internal function to portably implement func_quote_arg. Note that we still
|
||
# keep attention to performance here so we as much as possible try to avoid
|
||
# calling sed binary (so far O(N) complexity as long as func_append is O(1)).
|
||
func_quote_portable ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$require_check_ifs_backslash
|
||
|
||
func_quote_portable_result=$2
|
||
|
||
# one-time-loop (easy break)
|
||
while true
|
||
do
|
||
if $1; then
|
||
func_quote_portable_result=`$ECHO "$2" | $SED \
|
||
-e "$sed_double_quote_subst" -e "$sed_double_backslash"`
|
||
break
|
||
fi
|
||
|
||
# Quote for eval.
|
||
case $func_quote_portable_result in
|
||
*[\\\`\"\$]*)
|
||
# Fallback to sed for $func_check_bs_ifs_broken=:, or when the string
|
||
# contains the shell wildcard characters.
|
||
case $check_ifs_backshlash_broken$func_quote_portable_result in
|
||
:*|*[\[\*\?]*)
|
||
func_quote_portable_result=`$ECHO "$func_quote_portable_result" \
|
||
| $SED "$sed_quote_subst"`
|
||
break
|
||
;;
|
||
esac
|
||
|
||
func_quote_portable_old_IFS=$IFS
|
||
for _G_char in '\' '`' '"' '$'
|
||
do
|
||
# STATE($1) PREV($2) SEPARATOR($3)
|
||
set start "" ""
|
||
func_quote_portable_result=dummy"$_G_char$func_quote_portable_result$_G_char"dummy
|
||
IFS=$_G_char
|
||
for _G_part in $func_quote_portable_result
|
||
do
|
||
case $1 in
|
||
quote)
|
||
func_append func_quote_portable_result "$3$2"
|
||
set quote "$_G_part" "\\$_G_char"
|
||
;;
|
||
start)
|
||
set first "" ""
|
||
func_quote_portable_result=
|
||
;;
|
||
first)
|
||
set quote "$_G_part" ""
|
||
;;
|
||
esac
|
||
done
|
||
done
|
||
IFS=$func_quote_portable_old_IFS
|
||
;;
|
||
*) ;;
|
||
esac
|
||
break
|
||
done
|
||
|
||
func_quote_portable_unquoted_result=$func_quote_portable_result
|
||
case $func_quote_portable_result in
|
||
# double-quote args containing shell metacharacters to delay
|
||
# word splitting, command substitution and variable expansion
|
||
# for a subsequent eval.
|
||
# many bourne shells cannot handle close brackets correctly
|
||
# in scan sets, so we specify it separately.
|
||
*[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
|
||
func_quote_portable_result=\"$func_quote_portable_result\"
|
||
;;
|
||
esac
|
||
}
|
||
|
||
|
||
# func_quotefast_eval ARG
|
||
# -----------------------
|
||
# Quote one ARG (internal). This is equivalent to 'func_quote_arg eval ARG',
|
||
# but optimized for speed. Result is stored in $func_quotefast_eval.
|
||
if test xyes = `(x=; printf -v x %q yes; echo x"$x") 2>/dev/null`; then
|
||
printf -v _GL_test_printf_tilde %q '~'
|
||
if test '\~' = "$_GL_test_printf_tilde"; then
|
||
func_quotefast_eval ()
|
||
{
|
||
printf -v func_quotefast_eval_result %q "$1"
|
||
}
|
||
else
|
||
# Broken older Bash implementations. Make those faster too if possible.
|
||
func_quotefast_eval ()
|
||
{
|
||
case $1 in
|
||
'~'*)
|
||
func_quote_portable false "$1"
|
||
func_quotefast_eval_result=$func_quote_portable_result
|
||
;;
|
||
*)
|
||
printf -v func_quotefast_eval_result %q "$1"
|
||
;;
|
||
esac
|
||
}
|
||
fi
|
||
else
|
||
func_quotefast_eval ()
|
||
{
|
||
func_quote_portable false "$1"
|
||
func_quotefast_eval_result=$func_quote_portable_result
|
||
}
|
||
fi
|
||
|
||
|
||
# func_quote_arg MODEs ARG
|
||
# ------------------------
|
||
# Quote one ARG to be evaled later. MODEs argument may contain zero or more
|
||
# specifiers listed below separated by ',' character. This function returns two
|
||
# values:
|
||
# i) func_quote_arg_result
|
||
# double-quoted (when needed), suitable for a subsequent eval
|
||
# ii) func_quote_arg_unquoted_result
|
||
# has all characters that are still active within double
|
||
# quotes backslashified. Available only if 'unquoted' is specified.
|
||
#
|
||
# Available modes:
|
||
# ----------------
|
||
# 'eval' (default)
|
||
# - escape shell special characters
|
||
# 'expand'
|
||
# - the same as 'eval'; but do not quote variable references
|
||
# 'pretty'
|
||
# - request aesthetic output, i.e. '"a b"' instead of 'a\ b'. This might
|
||
# be used later in func_quote to get output like: 'echo "a b"' instead
|
||
# of 'echo a\ b'. This is slower than default on some shells.
|
||
# 'unquoted'
|
||
# - produce also $func_quote_arg_unquoted_result which does not contain
|
||
# wrapping double-quotes.
|
||
#
|
||
# Examples for 'func_quote_arg pretty,unquoted string':
|
||
#
|
||
# string | *_result | *_unquoted_result
|
||
# ------------+-----------------------+-------------------
|
||
# " | \" | \"
|
||
# a b | "a b" | a b
|
||
# "a b" | "\"a b\"" | \"a b\"
|
||
# * | "*" | *
|
||
# z="${x-$y}" | "z=\"\${x-\$y}\"" | z=\"\${x-\$y}\"
|
||
#
|
||
# Examples for 'func_quote_arg pretty,unquoted,expand string':
|
||
#
|
||
# string | *_result | *_unquoted_result
|
||
# --------------+---------------------+--------------------
|
||
# z="${x-$y}" | "z=\"${x-$y}\"" | z=\"${x-$y}\"
|
||
func_quote_arg ()
|
||
{
|
||
_G_quote_expand=false
|
||
case ,$1, in
|
||
*,expand,*)
|
||
_G_quote_expand=:
|
||
;;
|
||
esac
|
||
|
||
case ,$1, in
|
||
*,pretty,*|*,expand,*|*,unquoted,*)
|
||
func_quote_portable $_G_quote_expand "$2"
|
||
func_quote_arg_result=$func_quote_portable_result
|
||
func_quote_arg_unquoted_result=$func_quote_portable_unquoted_result
|
||
;;
|
||
*)
|
||
# Faster quote-for-eval for some shells.
|
||
func_quotefast_eval "$2"
|
||
func_quote_arg_result=$func_quotefast_eval_result
|
||
;;
|
||
esac
|
||
}
|
||
|
||
|
||
# func_quote MODEs ARGs...
|
||
# ------------------------
|
||
# Quote all ARGs to be evaled later and join them into single command. See
|
||
# func_quote_arg's description for more info.
|
||
func_quote ()
|
||
{
|
||
$debug_cmd
|
||
_G_func_quote_mode=$1 ; shift
|
||
func_quote_result=
|
||
while test 0 -lt $#; do
|
||
func_quote_arg "$_G_func_quote_mode" "$1"
|
||
if test -n "$func_quote_result"; then
|
||
func_append func_quote_result " $func_quote_arg_result"
|
||
else
|
||
func_append func_quote_result "$func_quote_arg_result"
|
||
fi
|
||
shift
|
||
done
|
||
}
|
||
|
||
|
||
# func_stripname PREFIX SUFFIX NAME
|
||
# ---------------------------------
|
||
# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
|
||
# PREFIX and SUFFIX must not contain globbing or regex special
|
||
# characters, hashes, percent signs, but SUFFIX may contain a leading
|
||
# dot (in which case that matches only a dot).
|
||
if test yes = "$_G_HAVE_XSI_OPS"; then
|
||
eval 'func_stripname ()
|
||
{
|
||
$debug_cmd
|
||
|
||
# pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
|
||
# positional parameters, so assign one to ordinary variable first.
|
||
func_stripname_result=$3
|
||
func_stripname_result=${func_stripname_result#"$1"}
|
||
func_stripname_result=${func_stripname_result%"$2"}
|
||
}'
|
||
else
|
||
func_stripname ()
|
||
{
|
||
$debug_cmd
|
||
|
||
case $2 in
|
||
.*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
|
||
*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
|
||
esac
|
||
}
|
||
fi
|
||
|
||
|
||
# func_show_eval CMD [FAIL_EXP]
|
||
# -----------------------------
|
||
# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
|
||
# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
|
||
# is given, then evaluate it.
|
||
func_show_eval ()
|
||
{
|
||
$debug_cmd
|
||
|
||
_G_cmd=$1
|
||
_G_fail_exp=${2-':'}
|
||
|
||
func_quote_arg pretty,expand "$_G_cmd"
|
||
eval "func_notquiet $func_quote_arg_result"
|
||
|
||
$opt_dry_run || {
|
||
eval "$_G_cmd"
|
||
_G_status=$?
|
||
if test 0 -ne "$_G_status"; then
|
||
eval "(exit $_G_status); $_G_fail_exp"
|
||
fi
|
||
}
|
||
}
|
||
|
||
|
||
# func_show_eval_locale CMD [FAIL_EXP]
|
||
# ------------------------------------
|
||
# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
|
||
# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
|
||
# is given, then evaluate it. Use the saved locale for evaluation.
|
||
func_show_eval_locale ()
|
||
{
|
||
$debug_cmd
|
||
|
||
_G_cmd=$1
|
||
_G_fail_exp=${2-':'}
|
||
|
||
$opt_quiet || {
|
||
func_quote_arg expand,pretty "$_G_cmd"
|
||
eval "func_echo $func_quote_arg_result"
|
||
}
|
||
|
||
$opt_dry_run || {
|
||
eval "$_G_user_locale
|
||
$_G_cmd"
|
||
_G_status=$?
|
||
eval "$_G_safe_locale"
|
||
if test 0 -ne "$_G_status"; then
|
||
eval "(exit $_G_status); $_G_fail_exp"
|
||
fi
|
||
}
|
||
}
|
||
|
||
|
||
# func_tr_sh
|
||
# ----------
|
||
# Turn $1 into a string suitable for a shell variable name.
|
||
# Result is stored in $func_tr_sh_result. All characters
|
||
# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
|
||
# if $1 begins with a digit, a '_' is prepended as well.
|
||
func_tr_sh ()
|
||
{
|
||
$debug_cmd
|
||
|
||
case $1 in
|
||
[0-9]* | *[!a-zA-Z0-9_]*)
|
||
func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
|
||
;;
|
||
* )
|
||
func_tr_sh_result=$1
|
||
;;
|
||
esac
|
||
}
|
||
|
||
|
||
# func_verbose ARG...
|
||
# -------------------
|
||
# Echo program name prefixed message in verbose mode only.
|
||
func_verbose ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$opt_verbose && func_echo "$*"
|
||
|
||
:
|
||
}
|
||
|
||
|
||
# func_warn_and_continue ARG...
|
||
# -----------------------------
|
||
# Echo program name prefixed warning message to standard error.
|
||
func_warn_and_continue ()
|
||
{
|
||
$debug_cmd
|
||
|
||
$require_term_colors
|
||
|
||
func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
|
||
}
|
||
|
||
|
||
# func_warning CATEGORY ARG...
|
||
# ----------------------------
|
||
# Echo program name prefixed warning message to standard error. Warning
|
||
# messages can be filtered according to CATEGORY, where this function
|
||
# elides messages where CATEGORY is not listed in the global variable
|
||
# 'opt_warning_types'.
|
||
func_warning ()
|
||
{
|
||
$debug_cmd
|
||
|
||
# CATEGORY must be in the warning_categories list!
|
||
case " $warning_categories " in
|
||
*" $1 "*) ;;
|
||
*) func_internal_error "invalid warning category '$1'" ;;
|
||
esac
|
||
|
||
_G_category=$1
|
||
shift
|
||
|
||
case " $opt_warning_types " in
|
||
*" $_G_category "*) $warning_func ${1+"$@"} ;;
|
||
esac
|
||
}
|
||
|
||
|
||
# func_sort_ver VER1 VER2
|
||
# -----------------------
|
||
# 'sort -V' is not generally available.
|
||
# Note this deviates from the version comparison in automake
|
||
# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
|
||
# but this should suffice as we won't be specifying old
|
||
# version formats or redundant trailing .0 in bootstrap.conf.
|
||
# If we did want full compatibility then we should probably
|
||
# use m4_version_compare from autoconf.
|
||
func_sort_ver ()
|
||
{
|
||
$debug_cmd
|
||
|
||
printf '%s\n%s\n' "$1" "$2" \
|
||
| sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
|
||
}
|
||
|
||
# func_lt_ver PREV CURR
|
||
# ---------------------
|
||
# Return true if PREV and CURR are in the correct order according to
|
||
# func_sort_ver, otherwise false. Use it like this:
|
||
#
|
||
# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
|
||
func_lt_ver ()
|
||
{
|
||
$debug_cmd
|
||
|
||
test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
|
||
}
|
||
|
||
|
||
# Local variables:
|
||
# mode: shell-script
|
||
# sh-indentation: 2
|
||
# eval: (add-hook 'before-save-hook 'time-stamp)
|
||
# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
|
||
# time-stamp-time-zone: "UTC"
|
||
# End:
|