#!/bin/bash
set -o errexit

# Uncomment to have verbose debug output
debug=1

print_usage()
{
    echo "$(basename $0) -- Update HG subrepositories to latest version"
    echo "Usage: $(basename $0) [OPTIONS...]"
}

if [ "x${1}" = "x--help" ]; then
    print_usage
    exit 1
fi

if [ ! -f .hgsub ]; then
    echo "No Mercurial subrepositories found"
    exit 1
fi

# Arg 1: repository path
update_repos()
{
    local repo="${1}"

    pushd "${repo}"
    hg pull
    hg update
    popd
}

# Tabarnacle d'espaces à marde!!!
OIFS="$IFS"
IFS=$'\n'
for d in $(find . -maxdepth 1 -type d \( \
    -name . -o \
    -name S\* -o \
    -name _S\* \
    \) ); do
    update_repos "${d}"
done
IFS="$OIFS"