crates/radicle-cli/examples/rad-cob-multiset — heartwood

rad:z3gqcJUoA1n9HaHKufZs5FCSGazv5

Radicle Heartwood Protocol & Stack

.. framework git workflow jj-config.md jj-init-bare.md jj-init-colocate.md rad-auth-errors.md rad-auth.md rad-block.md rad-checkout-repo-config-linux.md rad-checkout-repo-config-macos.md rad-checkout.md rad-clean.md rad-clone-all.md rad-clone-bare.md rad-clone-connect.md rad-clone-directory.md rad-clone-partial-fail.md rad-clone-scope.md rad-clone-unknown.md rad-clone.md rad-cob-log.md rad-cob-migrate.md rad-cob-multiset rad-cob-multiset.md rad-cob-operations.md rad-cob-show.md rad-cob-update-identity.md rad-cob-update.md rad-config.md rad-diff.md rad-fetch.md rad-fork.md rad-help.md rad-id-collaboration.md rad-id-conflict.md rad-id-multi-delegate.md rad-id-private.md rad-id-threshold-soft-fork.md rad-id-threshold.md rad-id-unauthorized-delegate.md rad-id-unknown-field.md rad-id-update-delete-field.md rad-id.md rad-inbox.md rad-init-detached-head.md rad-init-existing-bare.md rad-init-existing.md rad-init-no-git.md rad-init-no-seed.md rad-init-private-clone-seed.md rad-init-private-clone.md rad-init-private-no-seed.md rad-init-private-seed.md rad-init-private.md rad-init-sync-not-connected.md rad-init-sync-preferred.md rad-init-sync-timeout.md rad-init-sync.md rad-init-with-existing-remote.md rad-init.md rad-inspect-noauth.md rad-inspect.md rad-issue-list.md rad-issue.md rad-key-mismatch.md rad-merge-after-update.md rad-merge-no-ff.md rad-merge-via-push.md rad-node.md rad-patch-ahead-behind.md rad-patch-change-base.md rad-patch-checkout-force.md rad-patch-checkout-revision.md rad-patch-checkout.md rad-patch-delete.md rad-patch-detached-head.md rad-patch-diff.md rad-patch-draft.md rad-patch-edit.md rad-patch-fetch-1.md rad-patch-fetch-2.md rad-patch-jj.md rad-patch-merge-draft.md rad-patch-open-explore.md rad-patch-pull-update.md rad-patch-revert-merge.md rad-patch-update.md rad-patch-via-push.md rad-patch.md rad-publish.md rad-push-and-pull-patches.md rad-remote.md rad-review-by-hunk.md rad-seed-and-follow.md rad-seed-many.md rad-seed-policy-allow-no-scope.md rad-seed-scope.md rad-self.md rad-sync-without-node.md rad-sync.md rad-unseed-many.md rad-unseed.md rad-warn-old-nodes.md rad-watch.md

#! /usr/bin/env -S jq --from-file --sort-keys --compact-output
#
# Models a multiset as a JSON object.
#
# Takes an operation which contains actions, each in one of two shapes:
#
# Add x:
#
#   { "+": $x }
#
# Remove x:
#
#   { "-": $x }
#
# (where `$x` is a string).
#
# These actions are reduced to a multiset represented by an
# object. The key being the item to count (corresponding to `$x` above),
# and the value being the count itself (corresponding to how many times
# `$x` was added, minus how many times `$x` was removed).
#
# Errors if any unrecognizable action is encountered.
#
# For an example, see `rad-cob-multiset.md`.
reduce
    .op.actions[]
as {"+": $p, "-": $m} (
    .value;
    .[$p // $m // ("invalid" | halt_error)] |= (
        [. + (if $p then 1 else -1 end), 0] | max
    )
)