The same duplicate build avoidance as in Doit.

[git.git] / DoKernelOrg

diff --git a/DoKernelOrg b/DoKernelOrg
index 0a4d98d..16a3468 100755 (executable)
--- a/DoKernelOrg
+++ b/DoKernelOrg
@@ -14,9 +14,30 @@ make clean >/dev/null 2>&1 &&
 case "$1" in
 '')
        echo "* Building all"
+       branches='naster master maint'
+
+       # Make sure naster is between master and pu if exists
+       if naster=`git rev-parse --verify refs/heads/naster 2>/dev/null`
+       then
+               master=`git rev-parse --verify refs/heads/master` &&
+               pu=`git rev-parse --verify refs/heads/pu` &&
+               MBM=`git merge-base --all $naster $master` &&
+               MBN=`git merge-base --all $naster $pu` &&
+               case ",$MBM,$MBN," in
+               ",$master,$naster,") ;;
+               *)      echo >&2 "naster is not between master and pu"
+                       exit 1 ;;
+               esac
+               # If naster is the same as pu, no point rebuilding pu.
+               case ",$naster,$pu," in
+               ",$pu,$naster,") ;;
+               *) branches="$branches pu" ;;
+               esac
+       fi
+
        {
                nstalled=install
-               for branch in naster master maint pu
+               for branch in $branches
                do
                        if git-rev-parse --verify refs/heads/$branch 2>/dev/null
                        then