Keep unpinned blocks for a while before announcing (#83)

* Initial commit

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* Change substrate and polkadot branch to cecton-cumulus-branch

* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* update .editorconfig

* should probably be --dev

* formatting

* Change substrate & polkadot branch to cecton-keep-unpinned-para-blocks

* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* Update polkadot & substrate branches

* WIP

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* Some fixes

* Updated polkadot

* WIP

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* WIP

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* Cargo.lock

* WIP

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* WIP

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* Update substrate & polkadot branches

* Clean-up

* WIP

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* WIP

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* WIP

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* WIP

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* WIP

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* Use JustifiedBlockAnnounceValidator

* debug

* Revert "debug"

This reverts commit 2404121b840984d6ffc1012ccec1e6a784fa236c.

* Revert "Use JustifiedBlockAnnounceValidator"

This reverts commit 33e2efef21a1553c294b2bc23fca8b08bf77be2b.

* Revert branch to cumulus-branch

* clean-up

* clean-up

* cleanup

* cleanup

* Update branches

* debug

* Cancel previous task when new one is created

* Remove stream-cancel

* Clean-up

* cleanup

* cleanup

* Fix merge issue

* Update polkadot_chainspec.json

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Update network/src/lib.rs

Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

* Use closure instead of NetworkService to announce_block

* doc

* WIP

Forked at: e81bbaaefa
Parent branch: origin/master

* Move disable announcement to its own function with doc

* Change substrate and polkadot branch to cumulus-master

Co-authored-by: Bastian Köcher <git@kchr.de>
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>

cumulus/network/Cargo.toml

@@ -13,6 +13,7 @@ sp-runtime = { git = "https://github.com/paritytech/substrate", branch = "cumulu
 sp-api = { git = "https://github.com/paritytech/substrate", branch = "cumulus-branch" }
 
 # polkadot deps
+polkadot-collator = { git = "https://github.com/paritytech/polkadot", branch = "cumulus-branch" }
 polkadot-primitives = { git = "https://github.com/paritytech/polkadot", branch = "cumulus-branch" }
 polkadot-statement-table = { git = "https://github.com/paritytech/polkadot", branch = "cumulus-branch" }
 polkadot-validation = { git = "https://github.com/paritytech/polkadot", branch = "cumulus-branch" }
@@ -20,3 +21,5 @@ polkadot-network = { git = "https://github.com/paritytech/polkadot", branch = "c
 
 # other deps
 codec = { package = "parity-scale-codec", version = "1.3.0", features = [ "derive" ] }
+futures = { version = "0.3.1", features = ["compat"] }
+log = "0.4.8"