topic: suggest to clear a topic that becomes empty We add a hint suggesting "hg topic --clear" when a topic becomes empty. This usually happens when all its changesets get public, that is when the user does a 'phase -p' or when they pull from a server. To discriminate relevant cases for which we should display the hint (and typically exclude explicit 'hg topic --clear' operation), we look for the transaction "type" to only consider 'phase' or 'push' transaction. In the latter case, the transaction name is not simply 'push-response' but it also included the remote URL so we need to match on string content.

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#!/bin/bash

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set -euox pipefail

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unset GREP_OPTIONS

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NOTOPIC="--config experimental.topic-mode=ignore"

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compatbranches=`hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse`

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prev='stable'

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for branch in $compatbranches; do

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    hg up $branch

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    hg merge $prev

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    hg commit -m "test-compat: merge $prev into $branch"

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    prev=$branch

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done

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