#!/bin/bash -e

cd `dirname $0`

top_srcdir=`pwd`

script_name=./`basename $0`

#

# Script to check versions of dependencies

# To check the version for all dependencies, just run the script with no arguments.

# To check the version for a specific dependency, run the script with "check <dependency>"

# To reset a dependency to the needed version, run the script with "reset <dependency>"

# It is also possible to pass "reset all" to reset all dependencies

#

# md-addins

DEP[0]=md-addins

DEP_NAME[0]=MDADDINS

DEP_PATH[0]=${top_srcdir}/../md-addins

DEP_MODULE[0]=git@github.com:xamarin/md-addins.git

DEP_NEEDED_VERSION[0]=ab7a684a2d1d700a5abee5a92b6c548d7ab45d0c

DEP_BRANCH_AND_REMOTE[0]="master origin/master"

# heap-shot

DEP[1]=heap-shot

DEP_NAME[1]=HEAPSHOT

DEP_PATH[1]=${top_srcdir}/../heap-shot

DEP_MODULE[1]=git://github.com/mono/heap-shot.git

DEP_NEEDED_VERSION[1]=d726360d50d3a294ce6bdfcb2a82f9593e61c78c

DEP_BRANCH_AND_REMOTE[1]="master origin/master"

# other dependencies

# DEP[2]=...

# ...

function fetch_variables

{

IGNORE_VERSION=`eval echo \\\$IGNORE_${DEP_NAME[$1]}_VERSION`

THE_PATH=${DEP_PATH[$1]}

NAME=${DEP[$1]}

CUSTOM_VERSION=`eval echo \\\$DEP_NEEDED_VERSION_${DEP_NAME[$1]}`

if [[ "x$CUSTOM_VERSION" == "x" ]]; then

NEEDED_VERSION=${DEP_NEEDED_VERSION[$1]}

else

NEEDED_VERSION=$CUSTOM_VERSION

fi

if test -d "$THE_PATH"; then

cd "$THE_PATH"

VERSION=`git log | head -1 | awk '{print $2}' 2>/dev/null`

BRANCH=`git rev-parse --abbrev-ref HEAD 2>/dev/null`

cd "$top_srcdir"

else

VERSION=

BRANCH=

fi

CUSTOM_BRANCH=`eval echo \\\$DEP_BRANCH_${DEP_NAME[$1]}`

if [[ "x$CUSTOM_BRANCH" == "x" ]]; then

BRANCH_AND_REMOTE=${DEP_BRANCH_AND_REMOTE[$1]}

NEEDED_BRANCH=`echo "$BRANCH_AND_REMOTE" | sed -e 's, .*,,'`

else

BRANCH_AND_REMOTE="$CUSTOM_BRANCH origin/$CUSTOM_BRANCH"

NEEDED_BRANCH=$CUSTOM_BRANCH

fi

MODULE=${DEP_MODULE[$1]}

}

function reset_version

{

fetch_variables $1

if test -d "$THE_PATH"; then

cd "$THE_PATH"

if [[ ! git show "$NEEDED_VERSION" >/dev/null 2>&1 || "x$NEEDED_VERSION" == "xHEAD"]]; then

echo "*** [$NAME] git fetch $NAME"

git fetch

fi

else

echo "*** [$NAME] git clone $MODULE"

cd "`dirname $THE_PATH`"

git clone $MODULE

fi

if [[ "x$NEEDED_VERSION" == "xHEAD" ]]; then

NEEDED_VERSION=origin/$NEEDED_BRANCH

fi

cd "$THE_PATH"

echo "*** [$NAME] git checkout $NEEDED_BRANCH"

git checkout $NEEDED_BRANCH || git checkout -b $BRANCH_AND_REMOTE

echo "*** [$NAME] git reset --hard $NEEDED_VERSION"

(git reset --hard $NEEDED_VERSION && git submodule update --init --recursive) || exit 1;

cd "$top_srcdir"

}

function check_version

{

fetch_variables $1

if [[ "x$IGNORE_VERSION" == "x" ]]; then

if test ! -d "$THE_PATH"; then

echo "Your $NAME checkout is missing, please run '$script_name --reset $NAME'"

FAILURE=1

else

if [[ "x$NEEDED_VERSION" == "xHEAD" ]]; then

NEEDED_VERSION=`cd $THE_PATH && git log -1 --format=format:%H origin/$NEEDED_BRANCH`

fi

if [[ "x$VERSION" != "x$NEEDED_VERSION" || "x$BRANCH" != "x$NEEDED_BRANCH" ]]; then

echo "Your $NAME version is out of date, please run '$script_name --reset $NAME'"

FAILURE=1

fi

fi

fi

}

function reset_all

{

I=0

while [[ "x${#DEP[@]}" != "x$I" ]]; do

reset_version $I

let I=$I+1

done

}

function check_all

{

I=0

while [[ "x${#DEP[@]}" != "x$I" ]]; do

check_version $I

let I=$I+1

done

}

function find_dep

{

I=0

DEP_IDX=

while [[ "x${#DEP[@]}" != "x$I" ]]; do

if [[ "x${DEP[$I]}" == "x" ]]; then

echo "There is no dependency named $1"

exit 1

elif [[ "x${DEP[$I]}" == "x$1" ]]; then

DEP_IDX=$I

break;

fi

let I=$I+1

done

if [[ "x$DEP_IDX" == "x" ]]; then

echo "There is no dependency named $1"

exit 1

fi

}

FAILURE=0

if [[ "x$1" == "x" ]]; then

check_all

elif [[ "x$1" == "x--check-all" ]]; then

check_all

elif [[ "x$1" == "x--check" && "x$2" == "xall" ]]; then

check_all

elif [[ "x$1" == "x--check" && "x$2" == "x" ]]; then

check_all

elif [[ "x$1" == "x--check" ]]; then

shift

while [[ "x$1" != "x" ]]; do

find_dep $1

check_version $DEP_IDX

shift

done

elif [[ "x$1" == "x--reset-all" ]]; then

reset_all

elif [[ "x$1" == "x--reset" && "x$2" == "xall" ]]; then

reset_all

elif [[ "x$1" == "x--reset" && "x$2" == "x" ]]; then

reset_all

elif [[ "x$1" == "x--reset" ]]; then

shift

while [[ "x$1" != "x" ]]; do

find_dep $1

reset_version $DEP_IDX

shift

done

else

echo Unknown arguments: $@

echo 'Expected --reset|--check <list of dependencies>'

exit 1

fi

if [[ "x$FAILURE" == "x1" ]]; then

echo "One or more modules needs update"

exit 1

else

echo "All dependent modules up to date"

fi