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{
coreutils,
flatten-references-graph,
lib,
jq,
runCommand,
}:
{
closureRoots,
excludePaths ? [ ],
# This could be a path to (or a derivation producing a path to)
# a json file containing the pipeline
pipeline ? [ ],
debug ? false,
}:
if closureRoots == [ ] then
builtins.toFile "docker-layers-empty" "[]"
else
runCommand "docker-layers"
{
__structuredAttrs = true;
# graph, exclude_paths and pipeline are expected by the
# flatten_references_graph executable.
exportReferencesGraph.graph = closureRoots;
exclude_paths = excludePaths;
inherit pipeline;
nativeBuildInputs = [
coreutils
flatten-references-graph
jq
];
}
''
. .attrs.sh
flatten_references_graph_arg=.attrs.json
echo "pipeline: $pipeline"
if jq -e '.pipeline | type == "string"' .attrs.json; then
jq '. + { "pipeline": $pipeline[0] }' \
--slurpfile pipeline "$pipeline" \
.attrs.json > flatten_references_graph_arg.json
flatten_references_graph_arg=flatten_references_graph_arg.json
fi
${lib.optionalString debug "export DEBUG=True"}
flatten_references_graph "$flatten_references_graph_arg" > ''${outputs[out]}
''
|
