76 lines
2.7 KiB
Bash
Executable file
76 lines
2.7 KiB
Bash
Executable file
#!/bin/bash
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# Copyright (C) 2022 Giovanni Cascione <ing.cascione@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# Externally passed variables shall be:
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# $1 [REQ] repository URL
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# $2 [REQ] target commit
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# $3 [REQ] submodules folder
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# $4 [REQ] allow dirty submodules [0,1]
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# $5 [OPT] submodule folder (if not specified will be the same name of the repository)
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# Any error response will interrupt the script and will not reach the "0" output, to be used for success test upstream
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set -e
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TARGET_URL=$1
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TARGET_COMMIT=$2
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SUBMODULES_PATH=$3
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[ -z $4 ] && ALLOW_DIRTY=0 || ALLOW_DIRTY=$4
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[ -z $5 ] && SUBMODULE_FOLDER=$(echo $TARGET_URL | sed "s|.*/||") || SUBMODULE_FOLDER=$5
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clone=0
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reset=0
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# Exit if in parameters are not provided
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if [ -z $TARGET_URL ] || [ -z $TARGET_COMMIT ] || [ -z $SUBMODULES_PATH ] || [ -z $SUBMODULE_FOLDER ] ; then
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exit 1
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fi
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# Create submodules folder if does not exist and move into it
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[ ! -d $SUBMODULES_PATH ] && mkdir -p $SUBMODULES_PATH
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cd $SUBMODULES_PATH
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# Folder exists
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if [ -d $SUBMODULE_FOLDER ]; then
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# Folder is not our repo, not our commit or not git repo at all, remove and clone (no history) again
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if [ ! $(cd $SUBMODULE_FOLDER && git config --get remote.origin.url 2>/dev/null) = $TARGET_URL ] || [ ! $(cd $SUBMODULE_FOLDER && git rev-parse HEAD 2>/dev/null) = $TARGET_COMMIT ] ; then
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rm -rf ${SUBMODULE_FOLDER} && clone=1
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fi
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# Dirty repo in folder, reset hard
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[ $ALLOW_DIRTY -ne 1 ] && [ $clone -ne 1 ] && [ ! -z "$(cd $SUBMODULE_FOLDER && git diff --shortstat 2>/dev/null)" ] && reset=1
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# Folder does not exist
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else
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clone=1
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fi
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# Apply collected actions
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if [ $clone -eq 1 ] ; then
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mkdir -p $SUBMODULE_FOLDER
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git -C $SUBMODULE_FOLDER init > /dev/null 2>&1
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git -C $SUBMODULE_FOLDER remote add origin $TARGET_URL > /dev/null 2>&1
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git -C $SUBMODULE_FOLDER fetch --depth 1 origin $TARGET_COMMIT > /dev/null 2>&1
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git -C $SUBMODULE_FOLDER checkout FETCH_HEAD > /dev/null 2>&1
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git -C $SUBMODULE_FOLDER submodule update --init --recursive --depth 1 > /dev/null 2>&1
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fi
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cd $SUBMODULE_FOLDER
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[ $reset -eq 1 ] && git reset --hard > /dev/null 2>&1
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# Success
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echo 0
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