bootstrap

   1 #! /bin/sh
   2
   3 # bootstrap (GNU M4) version 2009-06-15
   4 # Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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='getopt version-etc-fsf version-etc xstrtol'
  73
  74 dirname="s,/[^/]*$,,"
  75 basename="s,^.*/,,g"
  76
  77 # Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
  78 # is ksh but when the shell is invoked as "sh" and the current value of
  79 # the _XPG environment variable is not equal to 1 (one), the special
  80 # positional parameter $0, within a function call, is the name of the
  81 # function.
  82 progpath="$0"
  83
  84 # The name of this program:
  85 progname=`echo "$progpath" | $SED "$basename"`
  86 PROGRAM=bootstrap
  87
  88 # Detect whether this is a version control system checkout or a tarball
  89 vcs_only_file=HACKING
  90
  91 # func_echo arg...
  92 # Echo program name prefixed message.
  93 func_echo ()
  94 {
  95     echo $progname: ${1+"$@"}
  96 }
  97
  98 # func_error arg...
  99 # Echo program name prefixed message to standard error.
 100 func_error ()
 101 {
 102     echo $progname: ${1+"$@"} >&2
 103 }
 104
 105 # func_fatal_error arg...
 106 # Echo program name prefixed message to standard error, and exit.
 107 func_fatal_error ()
 108 {
 109     func_error ${1+"$@"}
 110     exit $EXIT_FAILURE
 111 }
 112
 113 # func_verbose arg...
 114 # Echo program name prefixed message in verbose mode only.
 115 func_verbose ()
 116 {
 117     $opt_verbose && func_error ${1+"$@"}
 118 }
 119
 120 # func_missing_arg argname
 121 # Echo program name prefixed message to standard error and set global
 122 # exit_cmd.
 123 func_missing_arg ()
 124 {
 125    func_error "missing argument for $1"
 126    exit_cmd=exit
 127 }
 128
 129 # func_fatal_help arg...
 130 # Echo program name prefixed message to standard error, followed by
 131 # a help hint, and exit.
 132 func_fatal_help ()
 133 {
 134     func_error ${1+"$@"}
 135     func_fatal_error "Try \`$progname --help' for more information."
 136 }
 137
 138 # func_missing_arg argname
 139 # Echo program name prefixed message to standard error and set global
 140 # exit_cmd.
 141 func_missing_arg ()
 142 {
 143    func_error "missing argument for $1"
 144    exit_cmd=exit
 145 }
 146
 147 # func_usage
 148 # Echo short help message to standard output and exit.
 149 func_usage ()
 150 {
 151     $SED '/^# Usage:/,/# -h/ {
 152         s/^# //; s/^# *$//;
 153         s/\$progname/'$progname'/;
 154         p;
 155     }; d' < "$progpath"
 156     echo
 157     echo "run \`$progname --help | more' for full usage"
 158     exit $EXIT_SUCCESS
 159 }
 160
 161 # func_help
 162 # Echo long help message to standard output and exit.
 163 func_help ()
 164 {
 165     $SED '/^# Usage:/,/# Report bugs to/ {
 166         s/^# //; s/^# *$//;
 167         s/\$progname/'$progname'/;
 168         p;
 169      }; d' < "$progpath"
 170     exit $EXIT_SUCCESS
 171 }
 172
 173 # func_version
 174 # Echo version message to standard output and exit.
 175 func_version ()
 176 {
 177     $SED '/^# '$PROGRAM' (GNU /,/# Written by / {
 178         s/^# //;
 179         s/\((C)\)[ 0-9,-]*\( [1-9][0-9]*\)/\1\2/;
 180         p;
 181      }; d' < "$progpath"
 182      exit $EXIT_SUCCESS
 183 }
 184
 185 # func_update
 186 # Copy $1 to $2 if it is newer.
 187 func_update ()
 188 {
 189   if test -f "$2" && cmp -s "$1" "$2" ; then
 190     func_verbose "$2 is up-to-date"
 191   else
 192     func_echo "copying $1 -> $2"
 193     cp "$1" "$2"
 194   fi
 195 }
 196
 197 # Parse options once, thoroughly.  This comes as soon as possible in
 198 # the script to make things like `bootstrap --version' happen quickly.
 199 {
 200   # sed scripts:
 201   my_sed_single_opt='1s/^\(..\).*$/\1/;q'
 202   my_sed_single_rest='1s/^..\(.*\)$/\1/;q'
 203   my_sed_long_opt='1s/^\(--[^=]*\)=.*/\1/;q'
 204   my_sed_long_arg='1s/^--[^=]*=//'
 205
 206   # this just eases exit handling
 207   while test $# -gt 0; do
 208     opt="$1"
 209     shift
 210     case $opt in
 211       -f|--force)       vcs_only_file=                                  ;;
 212       --skip-po)        SKIP_PO=t                                       ;;
 213       -\?|-h)           func_usage                                      ;;
 214       --help)           func_help                                       ;;
 215       --version)        func_version                                    ;;
 216       --)               break                                           ;;
 217       -*)               func_fatal_help "unrecognized option \`$opt'"   ;;
 218       *)                set -- "$opt" ${1+"$@"};        break           ;;
 219     esac
 220   done
 221
 222   # Bail if the options were screwed
 223   $exit_cmd $EXIT_FAILURE
 224
 225   if test -n "$vcs_only_file" && test ! -r "$vcs_only_file"; then
 226     func_fatal_error \
 227       "Bootstrapping from a non-version-control distribution is risky."
 228   fi
 229 }
 230
 231 ## --------------------------------------- ##
 232 ## Fetch translations.                     ##
 233 ## (taken from gnulib build-aux/bootstrap) ##
 234 ## --------------------------------------- ##
 235
 236 # The command to download all .po files for a specified domain into
 237 # a specified directory.  Fill in the first %s with the domain name,
 238 # the second with the destination directory.  Use rsync's -L and -r
 239 # options because the latest/%s directory and the .po files within
 240 # are all symlinks.
 241 po_download_command_format=\
 242 "rsync -Lrtvz 'translationproject.org::tp/latest/%s/' '%s'"
 243
 244 func_get_translations()
 245 {
 246   subdir=$1
 247   domain=$2
 248
 249   func_echo "getting translations into $subdir for $domain..."
 250   cmd=`printf "$po_download_command_format" "$domain" "$subdir"`
 251   eval "$cmd"
 252 }
 253
 254 ## --------------------------------------- ##
 255 ## Update translations.                    ##
 256 ## (taken from gnulib build-aux/bootstrap) ##
 257 ## --------------------------------------- ##
 258
 259 func_update_po ()
 260 {
 261   # Directory containing primary .po files.
 262   # Overwrite them only when we're sure a .po file is new.
 263   po_dir=po
 264   domain=$package
 265
 266   # Download *.po files into this dir.
 267   # Usually contains *.s1 checksum files.
 268   ref_po_dir="$po_dir/.reference"
 269
 270   test -d $ref_po_dir || mkdir $ref_po_dir || return
 271
 272   func_get_translations $ref_po_dir $domain \
 273     && ls "$ref_po_dir"/*.po 2>/dev/null \
 274        | sed 's|.*/||; s|\.po$||' > "$po_dir/LINGUAS"
 275   langs=`cd $ref_po_dir && echo *.po | sed 's/\.po//g'`
 276
 277   test "$langs" = '*' && langs=x
 278   for po in $langs; do
 279     case $po in x) continue;; esac
 280     new_po="$ref_po_dir/$po.po"
 281     cksum_file="$ref_po_dir/$po.s1"
 282     if ! test -f "$cksum_file" ||
 283         ! test -f "$po_dir/$po.po" ||
 284         ! sha1sum -c --status "$cksum_file" < "$new_po" > /dev/null; then
 285       echo "updated $po_dir/$po.po..."
 286       cp "$new_po" "$po_dir/$po.po" && sha1sum < "$new_po" > "$cksum_file"
 287     fi
 288   done
 289 }
 290
 291 case $SKIP_PO in
 292   '')  func_update_po ;;
 293 esac
 294
 295 ## ---------------- ##
 296 ## Version control. ##
 297 ## ---------------- ##
 298
 299 # See if we can use gnulib's git-merge-changelog merge driver.
 300 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 301   if git config merge.merge-changelog.driver >/dev/null ; then
 302     :
 303   elif (git-merge-changelog --version) >/dev/null 2>/dev/null ; then
 304     func_echo "initializing git-merge-changelog driver"
 305     git config merge.merge-changelog.name 'GNU-style ChangeLog merge driver'
 306     git config merge.merge-changelog.driver 'git-merge-changelog %O %A %B'
 307   else
 308     func_echo "consider installing git-merge-changelog from gnulib"
 309   fi
 310   if git config diff.texinfo.funcname >/dev/null ; then
 311     :
 312   else
 313     func_echo "initializing git texinfo diff driver"
 314     git config diff.texinfo.funcname '^@node[    ][      ]*\\([^,][^,]*\\)'
 315   fi
 316 fi
 317
 318 ## ------------------------------ ##
 319 ## Update the gnulib module tree. ##
 320 ## ------------------------------ ##
 321
 322 if test -d .git && (git --version) >/dev/null 2>/dev/null ; then
 323   if test -f gnulib/gnulib-tool ; then
 324     func_echo "updating gnulib submodule"
 325     git submodule update \
 326       || func_fatal_error "Unable to update gnulib"
 327   else
 328     # A fresh checkout creates an empty subdirectory gnulib.  However,
 329     # older git didn't know how to clone into an empty subdir.  If the
 330     # user provided GNULIB_SRCDIR, then make the initial clone refer
 331     # to the existing checkout, to save network traffic.
 332     func_echo "importing gnulib submodule"
 333     if test -d "$GNULIB_SRCDIR" ; then
 334       rmdir gnulib 2>/dev/null
 335       git clone --reference "$GNULIB_SRCDIR" git://git.sv.gnu.org/gnulib.git \
 336  && git submodule init && git submodule update \
 337  || func_fatal_error "Unable to update gnulib"
 338     else
 339       git submodule update --init \
 340  || func_fatal_error "Unable to update gnulib"
 341     fi
 342   fi
 343 else
 344   func_echo "git not detected.  If needed, update gnulib subdirectory manually"
 345 fi
 346
 347 ## ---------- ##
 348 ## Autopoint. ##
 349 ## ---------- ##
 350
 351 # Released autopoint has the tendency to install macros that have been
 352 # obsoleted in current gnulib, so run this before gnulib-tool.
 353 func_echo "running: $AUTOPOINT --force"
 354 $AUTOPOINT --force
 355
 356 ## ----------- ##
 357 ## Libtoolize. ##
 358 ## ----------- ##
 359
 360 # Autoreconf runs aclocal before libtoolize, which causes spurious
 361 # warnings if the initial aclocal is confused by the libtoolized
 362 # (or worse out-of-date) macro directory.
 363 func_echo "running: $LIBTOOLIZE --copy --install"
 364 ${LIBTOOLIZE} --copy --install
 365
 366 ## ---------------------- ##
 367 ## Import Gnulib modules. ##
 368 ## ---------------------- ##
 369
 370 func_echo "running: $CONFIG_SHELL gnulib/gnulib-tool --update"
 371 $CONFIG_SHELL gnulib/gnulib-tool --update \
 372   || func_fatal_error "gnulib-tool failed"
 373
 374 ## --------------------------------- ##
 375 ## Copy additional src only modules. ##
 376 ## --------------------------------- ##
 377
 378 func_echo "fetching modules for src directory"
 379
 380 for file in `$CONFIG_SHELL gnulib/gnulib-tool --extract-filelist $src_modules`
 381 do
 382
 383     dest=`echo $file | $SED "$basename"`
 384     case $file in
 385         lib/*) dest=src/$dest ;;
 386         m4/*)  dest=$config_macro_dir/$dest ;;
 387         *)     func_echo "Unknown file: $file"
 388                exit 1
 389                ;;
 390     esac
 391
 392     # Be sure to show all copying errors before bailing out
 393     if test -f gnulib/$file; then
 394         func_echo "copying file \`$dest'"
 395         cp gnulib/$file $dest
 396     else
 397         func_error "gnulib/$file does not exist"
 398         bailout_cb="exit 1"
 399     fi
 400 done
 401 $bailout_cb
 402
 403
 404 ## ----------- ##
 405 ## Autoreconf. ##
 406 ## ----------- ##
 407
 408 # Disable autopoint and libtoolize, since they were already done above.
 409 func_echo "running: AUTOPOINT=true LIBTOOLIZE=true " \
 410     "$AUTORECONF --verbose --install --no-recursive"
 411 AUTOPOINT=true LIBTOOLIZE=true \
 412     $AUTORECONF --verbose --install --no-recursive \
 413   || func_fatal_error "autoreconf failed"
 414
 415 ## ------- ##
 416 ## Wrapup. ##
 417 ## ------- ##
 418
 419 if test x"$SKIP_PO" = x; then
 420   func_echo "If your pofiles are up-to-date, you can rerun bootstrap"
 421   func_echo "as \`$progname --skip-po' to avoid redownloading."
 422 fi
 423
 424 exit 0
 425
 426 # Local variables:
 427 # eval: (add-hook 'write-file-hooks 'time-stamp)
 428 # time-stamp-start: "# bootstrap (GNU M4) version "
 429 # time-stamp-format: "%:y-%02m-%02d"
 430 # time-stamp-end: "$"
 431 # End: