#!/bin/bash
#
# Shared functions for shell scripts
#

# Make sure custom grep options don't get in the way
unset GREP_OPTIONS


function lp_project_to_repo {
    typeset proj="$1"

    if [[ $proj == python-*client* ]]; then
        echo $proj
    elif [[ $proj == glance-store ]]; then
        echo glance_store
    elif [[ $proj == django-openstack-auth ]]; then
        echo django_openstack_auth
    else
        # Some of the repository names don't match the launchpad names, e.g.
        # python-stevedore and python-cliff.
        echo $proj | sed -e 's|^python-||'
    fi
}

function title {
    echo
    if [ -t 1 ]; then
        echo "$(tput bold)$(tput setaf 1)[ $1 ]$(tput sgr0)"
    else
        echo "[ $1 ]"
    fi
}


function _cleanup_tmp {
    rm -rf $MYTMPDIR
    return 0
}


function setup_temp_space {
    MYTMPDIR=`mktemp -d _tmp-${1}-XXX`
    mkdir -p "$MYTMPDIR"
    trap _cleanup_tmp EXIT
    cd "$MYTMPDIR"
    # NOTE(dhellmann): On some platforms mktemp returns a short name
    # instead of a full path, so expand the full path by looking at
    # where we ended up after the cd operation.
    MYTMPDIR="$(pwd)"
}



function get_last_tag {
    # Print the most recent tag for a ref. If no ref is specified, the
    # currently checked out branch is examined.
    local ref="$1"
    if ! git describe --abbrev=0 --first-parent ${ref} >/dev/null 2>&1; then
        echo ""
    else
        git describe --abbrev=0 --first-parent ${ref}
    fi
}


function update_gitreview {
    typeset branch="$1"

    title "Updating .gitreview"
    git checkout $branch
    # Remove a trailing newline, if present, to ensure consistent
    # formatting when we add the defaultbranch line next.
    typeset grcontents="$(echo -n "$(cat .gitreview | grep -v defaultbranch)")
defaultbranch=$branch"
    echo "$grcontents" > .gitreview
    git add .gitreview
    git commit -m "Update .gitreview for $branch"
    git show
    local shortbranch=$(basename $branch)
    git review -t "create-${shortbranch}"
}


function update_upper_constraints {
    typeset branch="$1"
    typeset uc_server='git.openstack.org'
    typeset uc_path='cgit/openstack/requirements/plain/upper-constraints.txt'
    typeset uc_url="https://${uc_server}/${uc_path}?h=${branch}"

    title "Updating tox.ini for upper-constraints"
    git checkout $branch
    sed -i~ -e "s,-c.*{\(env:UPPER_CONSTRAINTS_FILE\)[^ ]*},-c{\1:$uc_url}," tox.ini
    if ! git diff --exit-code >/dev/null 2>&1 ; then
        git add tox.ini
        git commit -m "Update UPPER_CONSTRAINTS_FILE for $branch"
        git show
        local shortbranch=$(basename $branch)
        git review -t "create-${shortbranch}"
    fi
}


function clone_repo {
    typeset repo="$1"
    typeset branch="$2"
    if [ -z "$branch" ]; then
        branch="master"
    fi
    output=$({ zuul-cloner --branch "$branch" git://git.openstack.org $repo \
               && (cd $repo && git review -s && git remote -v update \
                   && git fetch -v --tags); } 2>&1)
    _retval=$?
    if [ $_retval -ne 0 ] ; then
        echo "$output"
    fi

    return $_retval
}