admin/quick-install-emacs

   1 #!/bin/sh
   2 ### quick-install-emacs --- do a halfway-decent job of installing emacs quickly
   3
   4 ## Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
   5 ##   Free Software Foundation, Inc.
   6
   7 ## Author: Miles Bader <miles@gnu.org>
   8
   9 ## This file is part of GNU Emacs.
  10
  11 ## GNU Emacs is free software; you can redistribute it and/or modify
  12 ## it under the terms of the GNU General Public License as published by
  13 ## the Free Software Foundation; either version 3, or (at your option)
  14 ## any later version.
  15
  16 ## GNU Emacs is distributed in the hope that it will be useful,
  17 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ## GNU General Public License for more details.
  20
  21 ## You should have received a copy of the GNU General Public License
  22 ## along with GNU Emacs; see the file COPYING.  If not, write to the
  23 ## Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24 ## Boston, MA 02110-1301, USA.
  25
  26 ### Commentary:
  27
  28 ## This script is mainly intended for emacs maintainer or pretesters who
  29 ## install emacs very often.  See the --help output for more details.
  30
  31
  32 PUBLIC_LIBSRC_BINARIES='b2m emacsclient etags ctags ebrowse'
  33 PUBLIC_LIBSRC_SCRIPTS='grep-changelog rcs-checkin'
  34
  35 AVOID="CVS -DIC README COPYING ChangeLog ~ [.]orig$ [.]rej$ Makefile makefile stamp-subdir [.]cvsignore [.]arch-ids [{]arch[}] [.][cho]$ make-docfile testfile test-distrib"
  36
  37 # Prune old binaries lying around in the source tree
  38 PRUNE=no
  39 # Re-install files even if they already exist
  40 FORCE=no
  41 # Command verbose flag
  42 VERBOSE=''
  43
  44 me="`basename $0`"
  45
  46 # Install commands (if the user specifies the `--verbose' option, it is
  47 # passed to these commands, so that feature only works if these commands
  48 # implement it too)
  49 LINK='cp -lf'
  50 COPY='cp -f'
  51 REMOVE='rm -r'
  52 MKDIR='mkdir -p'
  53
  54 # Used to execute commands once once we create them
  55 EXEC='sh'
  56
  57 NAWK=/usr/bin/nawk
  58
  59 # avoid non-standard command output from non-C locales
  60 unset LANG LC_ALL LC_MESSAGES
  61
  62 # Some messages
  63 USAGE="Usage: $me [OPTION...] BUILD_TREE [PREFIX]"
  64 TRY="Try "\`"$me --help' for more information."
  65
  66 # Parse command-line options
  67 while :; do
  68   case "$1" in
  69     -n|--dry-run)
  70       EXEC=cat; shift;;
  71     -p|--prune)
  72       PRUNE=yes; shift;;
  73     -P|--no-prune)
  74       PRUNE=no; shift;;
  75     --prune-only)
  76       PRUNE=only; shift;;
  77     -f|--force)
  78       FORCE=yes; shift;;
  79     -v|--verbose)
  80       VERBOSE="-v"; shift;;
  81     --help)
  82       cat <<EOF
  83 $USAGE
  84 Install emacs quickly
  85
  86   -n, --dry-run              print installation commands instead of
  87                              executing them
  88
  89   -f, --force                install even files that haven't changed
  90   -v, --verbose              print messages describing what is done
  91
  92   -p, --prune                prune old generated files
  93   -P, --no-prune             don't prune old generated files (default)
  94       --prune-only           prune old generated files, but don't install
  95
  96       --help                 display this help and exit
  97       --version              output version information and exit
  98
  99 $me install emacs \`incrementally,' that is, it will
 100 install only those files that have changed since the last time it was
 101 invoked, and remove any obsolete files from the installation
 102 directories.  It also uses hard-links into the source and build trees to
 103 do the install, so it uses much less space than the default Makefile
 104 install target; however, this also means that $me can
 105 not install onto a disk partition other than the one on which the source
 106 and build directories reside.
 107
 108 Optionally, $me can also remove old versions of
 109 automatically generated files that are version-specific (such as the
 110 versioned emacs executables in the \`src' directory, and the DOC-* files
 111 in the \`etc' directory).  The latter action is called \`pruning,' and
 112 can be enabled using the \`-p' or \`--prune' options.
 113 EOF
 114       exit 0
 115       ;;
 116     --version)
 117       cat <<EOF
 118 $me 1.6
 119
 120 Written by Miles Bader <miles@gnu.org>
 121 EOF
 122       exit 0
 123       ;;
 124     -[^-]?*)
 125       # split concatenated single-letter options apart
 126       FIRST="$1"; shift
 127       set -- `echo $FIRST | sed 's/-\(.\)\(.*\)/-\1 -\2/'` "$@"
 128       ;;
 129     -*)
 130       echo 1>&2 "$me: unrecognized option "\`"$1'"
 131       echo 1>&2 "$TRY"
 132       exit 1
 133       ;;
 134     *)
 135       break;
 136   esac
 137 done
 138
 139 LINK_CMD="$LINK $VERBOSE"
 140 REMOVE_CMD="$REMOVE $VERBOSE"
 141
 142 case $# in
 143   1) BUILD="$1";;
 144   2) BUILD="$1"; prefix="$2";;
 145   *)
 146     echo 1>&2 "$USAGE"
 147     echo 1>&2 "$TRY"
 148     exit 1
 149     ;;
 150 esac
 151
 152 if test ! -d "$BUILD"; then
 153   echo 1>&2 "$me: $BUILD: Build tree not found"
 154   exit 2
 155 elif test ! -r "$BUILD/config.status"; then
 156   echo 1>&2 "$me: $BUILD: Not a proper build tree, config.status not found"
 157   exit 2
 158 fi
 159
 160 CONFIG_STATUS="$BUILD/config.status"
 161 get_config_var ()
 162 {
 163   if ! sed -n "s/^s\(.\)@$1@\1\(|#_!!_#|\)*\(.*\)\1.*$/\3/p" $CONFIG_STATUS | sed q | grep ''
 164   then
 165     echo 1>&2 "$me: $1: Configuration variable not found in $CONFIG_STATUS"
 166     exit 4
 167   fi
 168 }
 169
 170 test x"$SRC" = x && { SRC="`get_config_var srcdir`" || exit 4 ; }
 171 test x"$prefix" = x && { prefix="`get_config_var prefix`" || exit 4 ; }
 172 test x"$ARCH" = x && { ARCH="`get_config_var host`" || exit 4 ; }
 173
 174 VERSION=`grep 'defconst[         ]*emacs-version' $SRC/lisp/version.el \
 175          | sed -e 's/^[^"]*"\([^"]*\)".*$/\1/'`
 176
 177 DST_SHARE="$prefix/share/emacs/$VERSION"
 178 DST_BIN="$prefix/bin"
 179 DST_LIBEXEC="$prefix/libexec/emacs/$VERSION/$ARCH"
 180 DST_INFO="$prefix/info"
 181
 182 maybe_mkdir ()
 183 {
 184   if ! test -d "$1"; then
 185     $MKDIR $VERBOSE "$1" 2>&1 | sed "s/^mkdir:/$me:/" 1>&2
 186   fi
 187 }
 188
 189 maybe_mkdir "$DST_BIN"
 190 maybe_mkdir "$DST_SHARE"
 191 maybe_mkdir "$DST_SHARE/site-lisp"
 192 maybe_mkdir "$DST_LIBEXEC"
 193 maybe_mkdir "$DST_INFO"
 194
 195 (  # start of command-generating sub-shell
 196
 197 PRUNED=""
 198 if test x"$PRUNE" != xno; then
 199   for D in `ls -1t $BUILD/etc/DOC-* | sed 1d`; do
 200     echo $REMOVE_CMD $D
 201     PRUNED="$PRUNED $D"
 202   done
 203   for D in `ls -1t $BUILD/src/emacs-$VERSION.* | sed 1d`; do
 204     echo $REMOVE_CMD $D
 205     PRUNED="$PRUNED $D"
 206   done
 207 fi
 208
 209 test x"$PRUNE" = xonly && exit 0
 210
 211 maybe_emit_copy ()
 212 {
 213   if test "$FORCE" = yes || ! cmp -s $1 $2; then
 214     echo $LINK_CMD $1 $2
 215   fi
 216 }
 217
 218 maybe_emit_copy $BUILD/src/emacs $DST_BIN/emacs
 219 maybe_emit_copy $BUILD/src/emacs $DST_BIN/emacs-$VERSION
 220
 221 for F in $PUBLIC_LIBSRC_BINARIES; do
 222   maybe_emit_copy $BUILD/lib-src/$F $DST_BIN/$F
 223 done
 224 for F in $PUBLIC_LIBSRC_SCRIPTS; do
 225   maybe_emit_copy $SRC/lib-src/$F $DST_BIN/$F
 226 done
 227
 228 if test x"$SRC" = x"$BUILD"; then
 229   PFXS="$BUILD"
 230 else
 231   PFXS="$SRC $BUILD"
 232 fi
 233
 234 for SUBDIR in lisp leim etc lib-src info; do
 235   # defaults
 236   SHARED=no
 237   FORCED=''
 238   AVOID_PAT="`echo "($AVOID)" | tr ' ' '|'`"
 239
 240   # Set subdir-specific values
 241   case $SUBDIR in
 242     lisp|leim)
 243       DST="$DST_SHARE/$SUBDIR"
 244       ;;
 245     etc)
 246       DST="$DST_SHARE/$SUBDIR"
 247       # COPYING is in the avoid list, but there should be a copy of it in
 248       # the install etc dir, so make that here.
 249       FORCED="$DST/COPYING"
 250       ;;
 251     lib-src)
 252       DST="$DST_LIBEXEC"
 253       AVOID_PAT="`echo "($AVOID ($PUBLIC_LIBSRC_BINARIES $PUBLIC_LIBSRC_SCRIPTS)\$)" | tr ' ' '|'`"
 254       ;;
 255     info)
 256       DST="$DST_INFO"
 257       SHARED=yes
 258       ;;
 259   esac
 260
 261   for PFX in $PFXS; do
 262     if [ -d $PFX/$SUBDIR ]; then
 263       for DIR in `(cd $PFX/$SUBDIR; find . -type d -print | sed 's@^./@@')`; do
 264         if [ -d $DST/$DIR ]; then
 265           echo Directory $DST/$DIR exists
 266         else
 267           echo Directory $DST/$DIR non-existant
 268           if [ "`echo $DIR | egrep -v "$AVOID_PAT"`" ]; then
 269             maybe_mkdir $DST/$DIR
 270           fi
 271         fi
 272       done
 273       diff -sqr $PFX/$SUBDIR $DST
 274     fi
 275   done | $NAWK '
 276 BEGIN {
 277   src_pat = "^'"$SRC"'/'"$SUBDIR"'/"
 278   build_pat = "^'"$BUILD"'/'"$SUBDIR"'/"
 279   dst_pat = "^'"$DST"'/"
 280   dst_pfx = "'"$DST"'/"
 281   avoid_pat = "'"$AVOID_PAT"'"
 282   force = ("'"$FORCE"'" == "yes")
 283   shared = ("'"$SHARED"'" == "yes")
 284   init_bool_array(pruned, "'"$PRUNED"'")
 285   init_bool_array(forced, "'"$FORCED"'")
 286 }
 287 function init_bool_array(array, string,  a,k)
 288 {
 289   split (string, a)
 290   for (k in a)
 291     array[a[k]] = 1
 292 }
 293 function install(src, dst)
 294 {
 295   if (! (src in pruned)) {
 296     cp[src] = dst;
 297     from[dst] = src;
 298     delete rm[dst];
 299   }
 300 }
 301 function update(src, dst, copy)
 302 {
 303   if (src in pruned) {
 304     rm[dst] = 1;
 305     delete from[dst]
 306   } else {
 307     if (copy)
 308       cp[src] = dst;
 309     from[dst] = src;
 310     delete rm[dst];
 311   }
 312 }
 313 function uninstall(dst)
 314 {
 315   if (!(dst in from))
 316     rm[dst] = 1;
 317 }
 318 /^Directory / {
 319   if ($2 ~ avoid_pat) {
 320     if ($NF == "exists")
 321       uninstall($2)
 322   } else
 323     update(0, $2, 0)
 324   next
 325 }
 326 /^Files / {
 327   if ($4 ~ avoid_pat && !($4 in forced))
 328     uninstall($4)
 329   else if ($NF == "identical")
 330     update($2, $4, force)
 331   else
 332     update($2, $4, 1)
 333   next
 334 }
 335 /^Only /  {
 336   pfx = $3
 337   sub (/:$/, "/", pfx)
 338
 339   if (pfx ~ dst_pat) {
 340     if (! shared)
 341       uninstall(pfx $4)
 342   } else {
 343     subdir = pfx
 344     if (subdir ~ src_pat)
 345       sub (src_pat, "", subdir)
 346     else
 347       sub (build_pat, "", subdir)
 348
 349     dst = dst_pfx subdir $4
 350     if (! (dst ~ avoid_pat))
 351       install(pfx $4, dst)
 352   }
 353   next
 354 }
 355 END {
 356   for (f in rm)
 357     print "'"$REMOVE_CMD"' " f
 358   for (f in cp)
 359     print "'"$LINK_CMD"' " f " " cp[f]
 360 }
 361 '
 362 done
 363
 364 ) | eval $EXEC
 365
 366 # arch-tag: 9322b572-9755-4cf7-a67a-21e6505f1477