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dockerTools.streamLayeredImage: comments

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Utku Demir 2020-06-18 14:34:27 +12:00
parent 4ab7baf6f6
commit 307804d97d
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pkgs/build-support/docker/default.nix
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@ -729,7 +729,7 @@ rec {
# NOTE: the `closures` parameter is a list of closures to include. # NOTE: the `closures` parameter is a list of closures to include.
# The TOP LEVEL store paths themselves will never be present in the # The TOP LEVEL store paths themselves will never be present in the
# resulting image. At this time (2019-12-16) none of these layers # resulting image. At this time (2020-06-18) none of these layers
# are appropriate to include, as they are all created as # are appropriate to include, as they are all created as
# implementation details of dockerTools. # implementation details of dockerTools.
closures = [ baseJson contentsEnv ]; closures = [ baseJson contentsEnv ];
@ -761,6 +761,12 @@ rec {
# unless there are more paths than $maxLayers. In that case, create # unless there are more paths than $maxLayers. In that case, create
# $maxLayers-1 for the most popular layers, and smush the remainaing # $maxLayers-1 for the most popular layers, and smush the remainaing
# store paths in to one final layer. # store paths in to one final layer.
#
# The following code is fiddly w.r.t. ensuring every layer is
# created, and that no paths are missed. If you change the
# following lines, double-check that your code behaves properly
# when the number of layers equals:
# maxLayers-1, maxLayers, and maxLayers+1, 0
store_layers="$( store_layers="$(
paths | paths |
jq -sR ' jq -sR '