sdcc-build/sdcc-build-bootstrap.sh

   1 #!/bin/sh
   2
   3 # Simple shell script that knows enough to download the sdcc build scripts
   4 # and start them running.
   5
   6 # Use gmake over make by default.
   7 if command -v gmake > /dev/null; then
   8     MAKE=gmake
   9   else
  10     MAKE=make
  11   fi
  12
  13 BUILDROOT=$HOME/build
  14 #test -z $BUILDROOT && \
  15 #  BUILDROOT=/var/tmp/`whoami`/build
  16
  17 # SVN sdcc-build repository
  18 SVNROOT=svn://svn.code.sf.net/p/sdcc/code/trunk
  19
  20 BUILDDATE=`date +%Y%m%d`
  21
  22 # The lockfile ensures that the new build doesn't start until the previous one s not done
  23
  24 # uniq id
  25 MYID=$HOSTNAME
  26 # time to sleep until next check of lockfile, in seconds
  27 SLEEP=60
  28 # maximum age of lockfile; after this the lock will be removed
  29 MAXMINUTES=1440 #one day
  30 # filename of lock
  31 LOCKFILE=$BUILDROOT/sdcc-build.lock
  32 # prefix for all messages, which is used to filter the messages out of the buildlogs
  33 MSGPREFIX="Buildlock: "
  34
  35 # Delete lockfile
  36 # but check first, if it's (still) our own lockfile.
  37 cleanup ()
  38 {
  39   echo $MSGPREFIX cleanup
  40   test -f $LOCKFILE && head -n 1 $LOCKFILE | grep $MYID > /dev/null && rm $LOCKFILE && echo $MSGPREFIX "Lock released on     " `date`
  41 }
  42
  43 # Execute supported version of ls -l --full-time
  44 ls_l_full_time ()
  45 {
  46   # test if ls -l --full-time is supported
  47   res=`ls -l --full-time $1 2>&1`
  48   if test $? = 0; then
  49     # ls -l --full-time supported: echo the result
  50     echo "$res"
  51   else
  52     # ls -l --full-time not supported: execute ls -l
  53     ls -l $1
  54   fi
  55 }
  56
  57 # Perform locking
  58 do_lock ()
  59 {
  60   echo $MSGPREFIX Try to obtain lock on `date`
  61   test -f $LOCKFILE && printf "%s %s\n" $MSGPREFIX "`ls_l_full_time $LOCKFILE`"
  62   while true
  63   do
  64     if test -f $LOCKFILE
  65     then
  66       sleep $SLEEP
  67       res=`find $LOCKFILE -mmin +$MAXMINUTES \
  68            -exec echo $MSGPREFIX lock from \`cat $LOCKFILE\` expired \; \
  69            -exec rm -f {} \; 2> /dev/null`
  70       if test $? = 0; then
  71         echo $res
  72       else
  73         echo $MSGPREFIX "Can't obtain the lock"
  74         return 1
  75       fi
  76     else
  77       echo $MYID > $LOCKFILE
  78       # check, if we're in the first line of lockfile;
  79       # if we're not in the first line, another host was faster
  80       # and we have to wait again.
  81       head -n 1 $LOCKFILE | grep $MYID > /dev/null || continue
  82       echo $MSGPREFIX "Obtained lock on     " `date`
  83       break
  84     fi
  85   done
  86
  87   return 0
  88 }
  89
  90 trap 'echo $MSGPREFIX caught signal ; cleanup ; exit 1' 1 2 3 13 15
  91
  92 mkdir -p $BUILDROOT
  93
  94 if do_lock
  95 then
  96   success=0
  97   # Include local apps.
  98   if test -d ~/local-$HOSTNAME/bin; then
  99     PATH=$PATH:$HOME/local-$HOSTNAME/bin
 100   elif test -d ~/local/bin; then
 101     PATH=$PATH:$HOME/local/bin
 102   fi
 103
 104   for i in 0 1 2
 105   do
 106     # Checkout the latest sdcc-build version to $BUILDROOT/sdcc-build
 107     # Quick & dirty temporary fix: don't remove the build if uploading
 108     test "$1" != "do-upload" && rm -rf $BUILDROOT/sdcc-build
 109     if svn checkout $SVNROOT/sdcc-build $BUILDROOT/sdcc-build
 110     then
 111       success=1
 112       break
 113     else
 114       sleep 300
 115     fi
 116   done
 117
 118   if test "$success" = 1
 119   then
 120     # Spawn onto the actual build
 121     # Don't use "make -C" to change directory since the "Entering directory" and
 122     # "Leaving directory" messages are displayed in the regression test results
 123     cd $BUILDROOT/sdcc-build
 124     $MAKE $*
 125   else
 126     echo $MSGPREFIX "can't checkout"
 127   fi
 128 fi
 129
 130 cleanup