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      1 #! /bin/bash
      2 
      3 #set -ex
      4 
      5 # Update an SVN tree for a particular date.
      6 
      7 if [ $# != 1 ]; then
      8   echo Usage: $0 id
      9   exit 1
     10 fi
     11 
     12 if [ "x${REG_DO_CLEANUPS}" != "x" ]; then
     13   reg_cleanup
     14 fi
     15 
     16 ID=$1
     17 BRANCH=""
     18 
     19 ########################################################################
     20 # Get sources.
     21 ########################################################################
     22 
     23 svn_get() {
     24   # In case there are problems with updates (there were with CVS),
     25   # creating a file called REMOVE in the REG_SRCDIR directory causes us
     26   # to start with a clean tree each time.
     27 
     28   unset LC_ALL
     29   unset LANG
     30 
     31   cd ${REG_SRCDIR}
     32   if [ -d gcc ]; then
     33     # There's already a tree; do an update with the new revision.
     34     cd gcc
     35     echo "`date`  svn update begun for id ${ID}, rev ${REV} (fix)"
     36     echo svn update --non-interactive --revision ${REV} >> $LOG
     37     svn update --non-interactive --revision ${REV} >> $LOG
     38     if [ $? -eq 0 ]; then
     39       echo "`date`  svn update done"
     40     else
     41       echo "`date`  svn update failed"
     42       exit 1
     43     fi
     44   else
     45     echo "`date`  svn checkout begun for id ${ID}, rev ${REV}"
     46     echo svn checkout --non-interactive --revision ${REV} \
     47       ${REG_SVN_REPO}/${BRANCHPATH} gcc >> $LOG
     48     svn checkout --non-interactive --revision ${REV} \
     49       ${REG_SVN_REPO}/${BRANCHPATH} gcc >> $LOG
     50     if [ $? -eq 0 ]; then
     51       echo "`date`  svn checkout done"
     52     else
     53       echo "`date`  svn checkout failed"
     54       exit 1
     55     fi
     56     cd gcc
     57   fi
     58 
     59   # Touch generated files.
     60   contrib/gcc_update --touch >> $LOG
     61 }
     62 
     63 ########################################################################
     64 # Main program
     65 ########################################################################
     66 
     67 cd ${REG_SRCDIR}
     68 
     69 # This is a simple way to stop a long regression search fairly cleanly;
     70 # just touch a file called STOP.
     71 
     72 if [ -f STOP ]; then
     73   echo "`date`  $0 detected STOP file"
     74   rm -f STOP
     75   exit 1
     76 fi
     77 
     78 # Set up the log file.
     79 REV=`${REG_IDS} -f index -t rev ${ID}`
     80 LOG=${REG_SRCDIR}/logs/${BUGID}/${REV}.log
     81 mkdir -p ${REG_SRCDIR}/logs/${BUGID}
     82 rm -f $LOG
     83 touch $LOG
     84 
     85 # Get the branch for this patch.
     86 BRANCH=`${REG_IDS} -f index -t branch ${ID}`
     87 if [ "${BRANCH}" = "error" ]; then
     88   echo "`date`  $0: cannot determine the SVN branch for id ${ID}"
     89   exit 1
     90 fi
     91 
     92 if [ "${BRANCH}" = "trunk" ]; then
     93   BRANCHPATH=trunk
     94 else
     95   BRANCHPATH=branches/${BRANCH}
     96 fi
     97 
     98 svn_get
     99 
    100 # Look for a patch that's needed for this revision to build.
    101 FIX=${REG_PATCHES}/${REV}.fix
    102 echo "`date`  looking for $FIX"
    103 if [ -f $FIX ]; then
    104   echo "`date`  fix needed; checking whether it is already applied"
    105   cd ${REG_SRCDIR}/gcc
    106   patch --dry-run -s -p0 -i $FIX < /dev/null > /dev/null 2>&1
    107   if [ $? -eq 0 ]; then
    108     echo "`date`  applying fix"
    109     patch -s -p0 -i $FIX
    110   fi
    111 fi
    112 
    113 exit 0
    114