bzr branch review script

review.sh

#!/bin/bash

function get_branch {
    echo $1 | cut -f 3 -d '/'
}

function die {
    echo "$@"
    exit 1
}

if [ "$MAAS_HOME" == "" ]; then
    MAAS_HOME=/opt/src/maas
fi

test -d $MAAS_HOME || die "Could not find MAAS_HOME (tried: $MAAS_HOME)"

if [ "$1" == "" ]; then
    echo "Usage: $0 <branch-to-review> [branch-to-merge-into]"
    echo ""
    echo "    branch-to-review: a string in the format: p:~user/project/branch"
    echo "    branch-to-merge-into: a branch sandbox in $MAAS_HOME (\$MAAS_HOME)"
    die
fi

cd "$MAAS_HOME" || die "Failed to change directory to $MAAS_HOME"

target_branch=trunk
if [ "$2" != "" ]; then
    target_branch="$2"
fi
source_branch=$(get_branch $1)
review_branch=$target_branch-$source_branch
if [ -x "$source_branch" ]; then
    echo "$source_branch: already exists: press <enter> to confirm (and delete); ^C to cancel"
    read
fi
rm -rf $source_branch
if [ -x "$review_branch" ]; then
    echo "$review_branch: already exists: press <enter> to confirm (and delete); ^C to cancel"
    read
fi
rm -rf $review_branch
bzr branch "$1" || die "Failed to find review branch"
bzr branch "$target_branch" "$review_branch" || die "Failed to branch merge target: $target_branch"
cd $review_branch || die "$review_branch: directory not found"
bzr merge ../$source_branch && merged=1 || merged=0
if [ $merged -eq 1 ]; then
    echo "Merged into: $review_branch"
    bzr qdiff > /dev/null 2>&1 &
else
    die "Merge failed: $review_branch"
fi