[Notes] [Git][BuildStream/buildstream][chandan/bst-docker-import] Add contrib script to generate Docker images from bst checkout



Title: GitLab

Chandan Singh pushed to branch chandan/bst-docker-import at BuildStream / buildstream

Commits:

1 changed file:

Changes:

  • contrib/bst-docker-import
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    +#!/bin/bash
    
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    +#
    
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    +#  Copyright 2018 Bloomberg Finance LP
    
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    +#
    
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    +#  This program is free software; you can redistribute it and/or
    
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    +#  modify it under the terms of the GNU Lesser General Public
    
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    +#  License as published by the Free Software Foundation; either
    
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    +#  version 2 of the License, or (at your option) any later version.
    
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    +#
    
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    +#  This library 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 GNU
    
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    +#  Lesser General Public License for more details.
    
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    +#
    
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    +#  You should have received a copy of the GNU Lesser General Public
    
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    +#  License along with this library. If not, see <http://www.gnu.org/licenses/>.
    
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    +#
    
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    +#  Authors:
    
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    +#        Chadnan Singh <csingh43 bloomberg net>
    
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    +
    
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    +# This is a helper script to generate Docker images using checkouts of
    
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    +# BuildStream elements.
    
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    +
    
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    +usage() {
    
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    +    cat <<EOF
    
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    +
    
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    +USAGE: $(basename "$0") [-c BST_CMD] [-m MESSAGE] [-t TAG] [-h] ELEMENT
    
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    +
    
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    +Create a Docker image from bst checkout of an element.
    
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    +
    
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    +OPTIONS:
    
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    +    -c BST_CMD    Path to BuildStream command (default: bst).
    
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    +    -m MESSAGE    Commit message for the imported image.
    
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    +    -t TAG        Tag of the imported image.
    
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    +    -h            Print this help text and exit.
    
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    +
    
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    +EXAMPLES:
    
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    +
    
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    +    # Import hello.bst as a Docker image with tag "bst-hello" and message "hello"
    
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    +    $(basename "$0") -m hello -t bst-hello hello.bst
    
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    +
    
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    +    # Import hello.bst as a Docker image with tag "bst-hello" using bst-here
    
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    +    $(basename "$0") -c bst-here -t bst-hello hello.bst
    
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    +
    
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    +EOF
    
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    +    exit "$1"
    
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    +}
    
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    +
    
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    +die() {
    
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    +    echo "FATAL: $1" >&2
    
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    +    exit 1
    
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    +}
    
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    +
    
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    +bst_cmd=bst
    
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    +docker_import_cmd=(docker import)
    
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    +docker_image_tag=
    
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    +
    
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    +while getopts c:m:t:h arg
    
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    +do
    
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    +    case $arg in
    
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    +    c)
    
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    +        bst_cmd="$OPTARG"
    
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    +        ;;
    
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    +    m)
    
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    +        docker_import_cmd+=('-m' "$OPTARG")
    
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    +        ;;
    
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    +    t)
    
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    +        docker_image_tag="$OPTARG"
    
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    +        ;;
    
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    +    h)
    
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    +        usage 0
    
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    +        ;;
    
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    +    \?)
    
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    +        usage 1
    
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    +    esac
    
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    +done
    
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    +
    
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    +shift $((OPTIND-1))
    
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    +if [[ "$#" != 1 ]]; then
    
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    +    echo "$0: No element specified" >&2
    
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    +    usage 1
    
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    +fi
    
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    +element="$1"
    
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    +
    
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    +# Dump to a temporary file in the current directory.
    
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    +# NOTE: We use current directory to try to ensure compatibility with scripts
    
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    +# like bst-here, assuming that the current working directory is mounted
    
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    +# inside the container.
    
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    +
    
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    +checkout_tar="bst-checkout-$(basename "$element")-$RANDOM.tar"
    
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    +
    
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    +echo "INFO: Checking out $element ..." >&2
    
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    +$bst_cmd checkout --tar "$element" "$checkout_tar" || die "Failed to checkout $element"
    
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    +echo "INFO: Successfully checked out $element" >&2
    
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    +
    
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    +echo "INFO: Importing Docker image ..."
    
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    +"${docker_import_cmd[@]}" "$checkout_tar" "$docker_image_tag" || die "Failed to import Docker image from tarball"
    
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    +echo "INFO: Successfully import Docker image $docker_image_tag"
    
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    +
    
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    +echo "INFO: Cleaning up ..."
    
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    +rm "$checkout_tar" || die "Failed to remove $checkout_tar"
    
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    +echo "INFO: Clean up finished"



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