bootstrap

   1 #! /bin/sh
   2
   3 # bootstrap (GNU M4) version 2010-01-05
   4 # Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
   5 # Foundation, Inc.
   6 # License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
   7 # This is free software: you are free to change and redistribute it.
   8 # There is NO WARRANTY, to the extent permitted by law.
   9
  10 # Written by Gary V. Vaughan  <gary@gnu.org>
  11
  12 # This file is part of GNU M4.
  13 #
  14 # GNU M4 is free software: you can redistribute it and/or modify
  15 # it under the terms of the GNU General Public License as published by
  16 # the Free Software Foundation, either version 3 of the License, or
  17 # (at your option) any later version.
  18 #
  19 # GNU M4 is distributed in the hope that it will be useful,
  20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 # GNU General Public License for more details.
  23 #
  24 # You should have received a copy of the GNU General Public License
  25 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  26
  27 # Usage: $progname [options]
  28
  29 # -f      --force            bootstrap even when sources are not from git
  30 #         --skip-po          skip downloading pofiles
  31 # -v      --version          print version information
  32 # -h,-?   --help             print short or long help message
  33
  34 # You can also set the following variables to help $progname
  35 # locate the right tools:
  36 #   AUTOPOINT, AUTORECONF, AWK, CONFIG_SHELL, GNULIB_SRCDIR, LIBTOOLIZE,
  37 #   M4, RM, SED
  38
  39 # This script bootstraps a git or CVS checkout of GNU M4 by correctly calling
  40 # out to parts of the GNU Build Platform.  Currently this requires GNU
  41 # Gettext 0.16 or better, the latest git Autoconf 2.63b-41 or better,
  42 # GNU M4 1.4.5 or better, Automake 1.10b or better, Libtool 2.2 or better,
  43 # and the latest git or CVS checkout of Gnulib.
  44 # Libtool must be installed; either with the same --prefix as
  45 # automake, or made accessible to aclocal's search path via
  46 # $AUTOMAKE_prefix/share/aclocal/dirlist.
  47
  48 # Report bugs to <bug-m4@gnu.org>
  49
  50 : ${AUTOPOINT=autopoint}
  51 : ${AUTORECONF=autoreconf}
  52 : ${AWK=awk}
  53 : ${CONFIG_SHELL=/bin/sh}
  54 : ${LIBTOOLIZE=libtoolize}
  55 : ${M4=m4}
  56 : ${RM='rm -f'}
  57 : ${SED=sed}
  58
  59 # Ensure file names are sorted consistently across platforms.
  60 # Also, ensure diagnostics are in English.
  61 LC_ALL=C
  62 export LC_ALL
  63
  64 package=m4
  65 ltdldir=ltdl
  66 config_aux_dir=build-aux
  67 config_macro_dir=$ltdldir/m4
  68 bailout_cb=:
  69
  70 # List dependencies here too; we don't extract them, otherwise dependent
  71 # modules could end up being imported to src/ *and* gnu/!
  72 src_modules='
  73 getopt-gnu
  74 getopt-posix
  75 version-etc-fsf
  76 version-etc
  77 xstrtol
  78 '
  79
  80 dirname="s,/[^/]*$,,"
  81 basename="s,^.*/,,g"
  82
  83 # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
  84 # is ksh but when the shell is invoked as "sh" and the current value of
  85 # the _XPG environment variable is not equal to 1 (one), the special
  86 # positional parameter $0, within a function call, is the name of the
  87 # function.
  88 progpath="$0"
  89
  90 # The name of this program:
  91 progname=`echo "$progpath" | $SED "$basename"`
  92 PROGRAM=bootstrap
  93
  94 # Detect whether this is a version control system checkout or a tarball
  95 vcs_only_file=HACKING
  96
  97 # func_echo arg...
  98 # Echo program name prefixed message.
  99 func_echo ()
 100 {
 101     echo $progname: ${1+"$@"}
 102 }
 103
 104 # func_error arg...
 105 # Echo program name prefixed message to standard error.
 106 func_error ()
 107 {
 108     echo $progname: ${1+"$@"} >&2
 109 }
 110
 111 # func_fatal_error arg...
 112 # Echo program name prefixed message to standard error, and exit.
 113 func_fatal_error ()
 114 {
 115     func_error ${1+"$@"}
 116     exit $EXIT_FAILURE
 117 }
 118
 119 # func_verbose arg...
 120 # Echo program name prefixed message in verbose mode only.
 121 func_verbose ()
 122 {
 123     $opt_verbose && func_error ${1+"$@"}
 124 }
 125
 126 # func_missing_arg argname
 127 # Echo program name prefixed message to standard error and set global
 128 # exit_cmd.
 129 func_missing_arg ()
 130 {
 131    func_error "missing argument for $1"
 132    exit_cmd=exit
 133 }
 134
 135 # func_fatal_help arg...
 136 # Echo program name prefixed message to standard error, followed by
 137 # a help hint, and exit.
 138 func_fatal_help ()
 139 {
 140     func_error ${1+"$@"}
 141     func_fatal_error "Try \`$progname --help' for more information."
 142 }
 143
 144 # func_missing_arg argname
 145 # Echo program name prefixed message to standard error and set global
 146 # exit_cmd.
 147 func_missing_arg ()
 148 {
 149    func_error "missing argument for $1"
 150    exit_cmd=exit
 151 }
 152
 153 # func_usage
 154 # Echo short help message to standard output and exit.
 155 func_usage ()
 156 {
 157     $SED '/^# Usage:/,/# -h/ {
 158         s/^# //; s/^# *$//;
 159         s/\$progname/'$progname'/;
 160         p;
 161     }; d' < "$progpath"
 162     echo
 163     echo "run \`$progname --help | more' for full usage"
 164     exit $EXIT_SUCCESS
 165 }
 166
 167 # func_help
 168 # Echo long help message to standard output and exit.
 169 func_help ()
 170 {
 171     $SED '/^# Usage:/,/# Report bugs to/ {
 172         s/^# //; s/^# *$//;
 173         s/\$progname/'$progname'/;
 174         p;
 175      }; d' < "$progpath"
 176     exit $EXIT_SUCCESS
 177 }
 178
 179 # func_version
 180 # Echo version message to standard output and exit.
 181 func_version ()
 182 {
 183     $SED '/^# '$PROGRAM' (GNU /,/# Written by / {
 184         s/^# //;
 185         s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/;
 186         p;
 187      }; d' < "$progpath"
 188      exit $EXIT_SUCCESS
 189 }
 190
 191 # func_update
 192 # Copy $1 to $2 if it is newer.
 193 func_update ()
 194 {
 195   if test -f "$2" && cmp -s "$1" "$2" ; then
 196     func_verbose "$2 is up-to-date"
 197   else
 198     func_echo "copying $1 -> $2"
 199     cp "$1" "$2"
 200   fi
 201 }
 202
 203 # Parse options once, thoroughly.  This comes as soon as possible in
 204 # the script to make things like `bootstrap --version' happen quickly.
 205 {
 206   # sed scripts:
 207   my_sed_single_opt='1s/^\(..\).*$/\1/;q'
 208   my_sed_single_rest='1s/^..\(.*\)$/\1/;q'
 209   my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
 210   my_sed_long_arg='1s/^--[^=]*=//'
 211
 212   # this just eases exit handling
 213   while test $# -gt 0; do
 214     opt="$1"
 215     shift
 216     case $opt in
 217       -f|--force)       vcs_only_file=                                  ;;
 218       --skip-po)        SKIP_PO=t                                       ;;
 219       -\?|-h)           func_usage                                      ;;
 220       --help)           func_help                                       ;;
 221       --version)        func_version                                    ;;
 222       --)               break                                           ;;
 223       -*)               func_fatal_help "unrecognized option \`$opt'"   ;;
 224       *)                set -- "$opt" ${1+"$@"};        break           ;;
 225     esac
 226   done
 227
 228   # Bail if the options were screwed
 229   $exit_cmd $EXIT_FAILURE
 230
 231   if test -n "$vcs_only_file" && test ! -r "$vcs_only_file"; then
 232     func_fatal_error \
 233       "Bootstrapping from a non-version-control distribution is risky."
 234   fi
 235 }
 236
 237 ## --------------------------------------- ##
 238 ## Fetch translations.                     ##
 239 ## (taken from gnulib build-aux/bootstrap) ##
 240 ## --------------------------------------- ##
 241
 242 # The command to download all .po files for a specified domain into
 243 # a specified directory.  Fill in the first %s with the domain name,
 244 # the second with the destination directory.  Use rsync's -L and -r
 245 # options because the latest/%s directory and the .po files within
 246 # are all symlinks.
 247 po_download_command_format=\
 248 "rsync -Lrtvz 'translationproject.org::tp/latest/%s/' '%s'"
 249
 250 func_get_translations()
 251 {
 252   subdir=$1
 253   domain=$2
 254
 255   func_echo "getting translations into $subdir for $domain..."
 256   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 257   eval "$cmd"
 258 }
 259
 260 ## --------------------------------------- ##
 261 ## Update translations.                    ##
 262 ## (taken from gnulib build-aux/bootstrap) ##
 263 ## --------------------------------------- ##
 264
 265 func_update_po ()
 266 {
 267   # Directory containing primary .po files.
 268   # Overwrite them only when we're sure a .po file is new.
 269   po_dir=po
 270   domain=$package
 271
 272   # Download *.po files into this dir.
 273   # Usually contains *.s1 checksum files.
 274   ref_po_dir="$po_dir/.reference"
 275
 276   test -d $ref_po_dir || mkdir $ref_po_dir || return
 277
 278   func_get_translations $ref_po_dir $domain \
 279     && ls "$ref_po_dir"/*.po 2>/dev/null \
 280        | sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS"
 281   langs=`cd $ref_po_dir && echo *.po | sed 's/\.po//g'`
 282
 283   test "$langs" = '*' && langs=x
 284   for po in $langs; do
 285     case $po in x) continue;; esac
 286     new_po="$ref_po_dir/$po.po"
 287     cksum_file="$ref_po_dir/$po.s1"
 288     if ! test -f "$cksum_file" ||
 289         ! test -f "$po_dir/$po.po" ||
 290         ! sha1sum -c --status "$cksum_file" < "$new_po" > /dev/null; then
 291       echo "updated $po_dir/$po.po..."
 292       cp "$new_po" "$po_dir/$po.po" && sha1sum < "$new_po" > "$cksum_file"
 293     fi
 294   done
 295 }
 296
 297 case $SKIP_PO in
 298   '')  func_update_po ;;
 299 esac
 300
 301 ## ---------------- ##
 302 ## Version control. ##
 303 ## ---------------- ##
 304
 305 # See if we can use gnulib's git-merge-changelog merge driver.
 306 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 307   if git config merge.merge-changelog.driver >/dev/null ; then
 308     :
 309   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 310     func_echo "initializing git-merge-changelog driver"
 311     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 312     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 313   else
 314     func_echo "consider installing git-merge-changelog from gnulib"
 315   fi
 316   if git config diff.texinfo.funcname >/dev/null ; then
 317     :
 318   else
 319     func_echo "initializing git texinfo diff driver"
 320     git config diff.texinfo.funcname '^@node[    ][      ]*\\([^,][^,]*\\)'
 321   fi
 322 fi
 323
 324 ## ------------------------------ ##
 325 ## Update the gnulib module tree. ##
 326 ## ------------------------------ ##
 327
 328 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 329   if test -f gnulib/gnulib-tool ; then
 330     func_echo "updating gnulib submodule"
 331     git submodule update \
 332       || func_fatal_error "Unable to update gnulib"
 333   else
 334     # A fresh checkout creates an empty subdirectory gnulib.  However,
 335     # older git didn't know how to clone into an empty subdir.  If the
 336     # user provided GNULIB_SRCDIR, then make the initial clone refer
 337     # to the existing checkout, to save network traffic.
 338     func_echo "importing gnulib submodule"
 339     if test -d "$GNULIB_SRCDIR" ; then
 340       rmdir gnulib 2>/dev/null
 341       git clone --reference "$GNULIB_SRCDIR" git://git.sv.gnu.org/gnulib.git \
 342         && git submodule init && git submodule update \
 343         || func_fatal_error "Unable to update gnulib"
 344     else
 345       git submodule update --init \
 346         || func_fatal_error "Unable to update gnulib"
 347     fi
 348   fi
 349 else
 350   func_echo "git not detected.  If needed, update gnulib subdirectory manually"
 351 fi
 352
 353 ## ---------- ##
 354 ## Autopoint. ##
 355 ## ---------- ##
 356
 357 # Released autopoint has the tendency to install macros that have been
 358 # obsoleted in current gnulib, so run this before gnulib-tool.
 359 func_echo "running: $AUTOPOINT --force"
 360 $AUTOPOINT --force
 361
 362 ## ----------- ##
 363 ## Libtoolize. ##
 364 ## ----------- ##
 365
 366 # Autoreconf runs aclocal before libtoolize, which causes spurious
 367 # warnings if the initial aclocal is confused by the libtoolized
 368 # (or worse out-of-date) macro directory.
 369 func_echo "running: $LIBTOOLIZE --copy --install"
 370 ${LIBTOOLIZE} --copy --install
 371 # Note that if libtoolize has newer auxiliary files than the current
 372 # gnulib submodule, then this will result in a typechange.  See
 373 # HACKING for details.
 374
 375 ## ---------------------- ##
 376 ## Import Gnulib modules. ##
 377 ## ---------------------- ##
 378
 379 func_echo "running: $CONFIG_SHELL gnulib/gnulib-tool --update"
 380 $CONFIG_SHELL gnulib/gnulib-tool --update \
 381   || func_fatal_error "gnulib-tool failed"
 382
 383 ## --------------------------------- ##
 384 ## Copy additional src only modules. ##
 385 ## --------------------------------- ##
 386
 387 func_echo "fetching modules for src directory"
 388
 389 for file in `$CONFIG_SHELL gnulib/gnulib-tool --extract-filelist $src_modules \
 390   | sort -u`
 391 do
 392
 393     dest=`echo $file | $SED "$basename"`
 394     case $file in
 395         lib/*) dest=src/$dest ;;
 396         m4/*)  dest=$config_macro_dir/$dest ;;
 397         *)     func_echo "Unknown file: $file"
 398                exit 1
 399                ;;
 400     esac
 401
 402     # Be sure to show all copying errors before bailing out
 403     if test -f gnulib/$file; then
 404         func_echo "copying file \`$dest'"
 405         cp gnulib/$file $dest
 406     else
 407         func_error "gnulib/$file does not exist"
 408         bailout_cb="exit 1"
 409     fi
 410 done
 411 $bailout_cb
 412
 413
 414 ## ----------- ##
 415 ## Autoreconf. ##
 416 ## ----------- ##
 417
 418 # Disable autopoint and libtoolize, since they were already done above.
 419 func_echo "running: AUTOPOINT=true LIBTOOLIZE=true " \
 420     "$AUTORECONF --verbose --install --no-recursive"
 421 AUTOPOINT=true LIBTOOLIZE=true \
 422     $AUTORECONF --verbose --install --no-recursive \
 423   || func_fatal_error "autoreconf failed"
 424
 425 ## ------- ##
 426 ## Wrapup. ##
 427 ## ------- ##
 428
 429 if test x"$SKIP_PO" = x; then
 430   func_echo "If your pofiles are up-to-date, you can rerun bootstrap"
 431   func_echo "as \`$progname --skip-po' to avoid redownloading."
 432 fi
 433
 434 exit 0
 435
 436 # Local variables:
 437 # eval: (add-hook 'write-file-hooks 'time-stamp)
 438 # time-stamp-start: "# bootstrap (GNU M4) version "
 439 # time-stamp-format: "%:y-%02m-%02d"
 440 # time-stamp-end: "$"
 441 # End: