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@ -23,8 +23,8 @@ srcdir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck disable=SC2034,SC2154
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usage_description="
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Runs package installs on all the major versions of a given docker image to check given packages
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are available before adding them and breaking builds across distro versions
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Runs package installs on the last 8 major versions of a given docker image to check given packages are available
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before adding them and breaking builds across distro versions
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Uses adjacent scripts:
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@ -34,6 +34,8 @@ Uses adjacent scripts:
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to install the packages using whatever local package manager is detected
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Set environment variable MAX_VERSIONS to change the number of distro versions to run against (default: 8)
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Currently only supports DockerHub images
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"
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@ -48,6 +50,12 @@ min_args 2 "$@"
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image="$1"
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shift || :
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max_versions="${MAX_VERSIONS:-8}"
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if ! is_int "$max_versions"; then
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die "MAX_VERSIONS may only be set to an integer, not: $max_versions"
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fi
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check_bin docker
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if [[ "$image" =~ alpine ]]; then
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@ -74,6 +82,8 @@ if grep -Eq '^[[:digit:]]+$' <<< "$major_versions"; then
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major_versions="$(grep -EO -e '^[[:digit:]]+$' -e 'latest' <<< "$major_versions" | sort -Vr)"
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fi
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major_versions="$(head -n "$max_versions" <<< "$major_versions")"
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echo
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timestamp "Running for major versions:"
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echo
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