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<html><head><meta content="chrome=1" http-equiv="X-UA-Compatible" /><meta charset="utf-8" /><meta content="width=device-width, initial-scale=1, user-scalable=no" name="viewport" /><title>hooks API</title><style>body {
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</style></head><body><header><div class="heading"><h1>hooks API</h1><h3>An introduction to pull hooks.</h3><hr /><div class="info"><h5>Author: christian weilbach<b> <a href="mailto:ch_weil topiq es">(ch_weil topiq es)</a></b></h5><h5>Library: v0.1.0-SNAPSHOT</h5><h5>Date: 19 Januar 2016</h5><h5>Website: <a href="http://github.com/replikativ/replikativ">http://github.com/replikativ/replikativ</a></h5><h5>Generated By: <a href="http://www.github.com/zcaudate/lein-midje-doc">MidjeDoc</a></h5></div><br /><hr /></div><h4><a href="#hooks">1 Pull hook middleware of replikativ</a></h4><h5> <i><a href="#tests-for-pulling-cdvcs">1.1 Tests for pulling CDVCS</a></i></h5><br /></header><section><div class="heading"><h1>hooks API</h1><h3>An introduction to pull hooks.</h3><hr /><div class="info"><h5>Author: christian weilbach<b> <a href="mailto:ch_weil topiq es">(ch_weil topiq es)</a></b></h5><h5>Library: v0.1.0-SNAPSHOT</h5><h5>Date: 19 Januar 2016</h5><h5>Website: <a href="http://github.com/replikativ/replikativ">http://github.com/replikativ/replikativ</a></h5><h5>Generated By: <a href="http://www.github.com/zcaudate/lein-midje-doc">MidjeDoc</a></h5></div><br /><hr /></div><div><a name="hooks"></a><h2><b>1 Pull hook middleware of replikativ</b></h2></div><div><p>This chapter describes the hooking middleware of replikativ. You can use these hooks to automatically pull or merge from other CDVCS on peer level, e.g. to pull new user data on server side or to pull server updates to a central CDVCS into a user CDVCS on client-side.</p></div><div><p>You can use regular expression wildcards on usernames to pull from, see example:</p></div><div><div class="highlight"><pre><span class="p">(</span><span class="k">def </span><span class="nv">hooks</span> <span class="p">(</span><span class="nf">atom</span> <span class="p">{[</span><span class="o">#</span><span class="s">".*"</span>
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="p">[[</span><span class="s">"mail:[email protected]"</span>
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]]}))</span> <span class="c1">;; setup two peers with stores and a single commit in mail:[email protected] and mail:[email protected]</span>
<span class="p">(</span><span class="k">def </span><span class="nv">store-a</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span> <span class="p">(</span><span class="nf">atom</span> <span class="p">{[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="p">{</span><span class="ss">:description</span> <span class="s">"some CDVCS."</span>,
<span class="ss">:public</span> <span class="nv">false</span>,
<span class="ss">:crdt</span> <span class="ss">:cdvcs</span>
<span class="ss">:state</span> <span class="o">#</span><span class="nv">replikativ.crdt.CDVCS</span><span class="p">{</span><span class="ss">:commit-graph</span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span> <span class="p">[]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span><span class="p">}</span>,<span class="p">}}</span>,
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="p">{</span><span class="ss">:description</span> <span class="s">"some CDVCS."</span>,
<span class="ss">:public</span> <span class="nv">false</span>,
<span class="ss">:crdt</span> <span class="ss">:cdvcs</span>
<span class="ss">:state</span> <span class="o">#</span><span class="nv">replikativ.crdt.CDVCS</span><span class="p">{</span><span class="ss">:commit-graph</span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span> <span class="p">[]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span><span class="p">}}}</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span>
<span class="p">{</span><span class="ss">:transactions</span> <span class="p">[]</span>,
<span class="ss">:parents</span> <span class="p">[]</span>,
<span class="ss">:ts</span> <span class="o">#</span><span class="nv">inst</span> <span class="s">"2015-01-06T16:21:40.741-00:00"</span>,
<span class="ss">:author</span> <span class="s">"mail:[email protected]"</span><span class="p">}}))))</span>
<span class="p">(</span><span class="k">def </span><span class="nv">store-b</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span> <span class="p">(</span><span class="nf">atom</span> <span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">store-a</span><span class="p">)))))</span>
<span class="p">(</span><span class="k">def </span><span class="nv">err-ch</span> <span class="p">(</span><span class="nf">chan</span><span class="p">))</span>
<span class="p">(</span><span class="nf">go-loop</span> <span class="p">[</span><span class="nv">e</span> <span class="p">(</span><span class="nf"><?</span> <span class="nv">err-ch</span><span class="p">)]</span>
<span class="p">(</span><span class="nb">when </span><span class="nv">e</span>
<span class="p">(</span><span class="nf">warn</span> <span class="s">"ERROR occured: "</span> <span class="nv">e</span><span class="p">)</span>
<span class="p">(</span><span class="nf">recur</span> <span class="p">(</span><span class="nf"><?</span> <span class="nv">err-ch</span><span class="p">))))</span>
<span class="p">(</span><span class="k">def </span><span class="nv">peer-a</span> <span class="p">(</span><span class="nf">server-peer</span> <span class="p">(</span><span class="nf">create-http-kit-handler!</span> <span class="s">"ws://127.0.0.1:9090"</span> <span class="nv">err-ch</span><span class="p">)</span> <span class="s">"PEER A"</span>
<span class="nv">store-a</span> <span class="nv">err-ch</span>
<span class="c1">;; include hooking middleware in peer-a</span>
<span class="ss">:middleware</span> <span class="p">(</span><span class="nb">comp </span><span class="p">(</span><span class="nb">partial </span><span class="nv">hook</span> <span class="nv">hooks</span> <span class="nv">store-a</span><span class="p">)</span>
<span class="p">(</span><span class="nb">partial </span><span class="nv">fetch</span> <span class="nv">store-a</span> <span class="p">(</span><span class="nf">atom</span> <span class="p">{})</span> <span class="nv">err-ch</span><span class="p">)</span>
<span class="nv">ensure-hash</span><span class="p">)))</span>
<span class="p">(</span><span class="k">def </span><span class="nv">peer-b</span> <span class="p">(</span><span class="nf">server-peer</span> <span class="p">(</span><span class="nf">create-http-kit-handler!</span> <span class="s">"ws://127.0.0.1:9091"</span> <span class="nv">err-ch</span><span class="p">)</span> <span class="s">"PEER B"</span>
<span class="nv">store-b</span> <span class="nv">err-ch</span>
<span class="ss">:middleware</span> <span class="p">(</span><span class="nb">partial </span><span class="nv">fetch</span> <span class="nv">store-b</span> <span class="p">(</span><span class="nf">atom</span> <span class="p">{})</span> <span class="nv">err-ch</span><span class="p">)))</span>
<span class="p">(</span><span class="nf">start</span> <span class="nv">peer-a</span><span class="p">)</span>
<span class="p">(</span><span class="nf">start</span> <span class="nv">peer-b</span><span class="p">)</span>
<span class="p">(</span><span class="k">def </span><span class="nv">stage-a</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">create-stage!</span> <span class="s">"mail:[email protected]"</span> <span class="nv">peer-a</span> <span class="nv">err-ch</span><span class="p">)))</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">subscribe-crdts!</span> <span class="nv">stage-a</span> <span class="p">{</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">}</span>
<span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">}}))</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">connect!</span> <span class="nv">stage-a</span> <span class="s">"ws://127.0.0.1:9091"</span><span class="p">))</span>
<span class="p">(</span><span class="k">def </span><span class="nv">stage-b</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">create-stage!</span> <span class="s">"mail:[email protected]"</span> <span class="nv">peer-b</span> <span class="nv">err-ch</span><span class="p">)))</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">subscribe-crdts!</span> <span class="nv">stage-b</span> <span class="p">{</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">}</span>
<span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">}}))</span><span class="c1">;; prepare commit to mail:[email protected] on peer-b through stage-b</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">s/transact</span> <span class="nv">stage-b</span>
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="ss">'+</span>
<span class="mi">5</span><span class="p">))</span><span class="c1">;; ensure we can carry binary blobs</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">s/transact-binary</span> <span class="nv">stage-b</span>
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="p">(</span><span class="nf">byte-array</span> <span class="mi">5</span> <span class="p">(</span><span class="nb">byte </span><span class="mi">42</span><span class="p">))))</span><span class="c1">;; commit atomically now</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">s/commit!</span> <span class="nv">stage-b</span> <span class="p">{</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">}}))</span>
<span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">timeout</span> <span class="mi">500</span><span class="p">))</span> <span class="c1">;; let network settle</span>
<span class="p">(</span><span class="nb">-> </span><span class="nv">store-a</span> <span class="ss">:state</span> <span class="nb">deref </span><span class="p">(</span><span class="nf">get-in</span> <span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="ss">:state</span> <span class="ss">:commit-graph</span><span class="p">]))</span>
<span class="nv">=></span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span> <span class="p">[]</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"108d6e8e-8547-58f9-bb31-a0705800bda8"</span> <span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span><span class="p">]}</span>
</pre></div>
</div><div><div class="highlight"><pre><span class="p">(</span><span class="nb">map byte </span><span class="p">(</span><span class="nf">get-in</span> <span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">store-a</span><span class="p">)</span> <span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"11f72278-9b93-51b0-a646-3425554e0c51"</span> <span class="ss">:input-stream</span><span class="p">]))</span>
<span class="nv">=></span> <span class="o">'</span><span class="p">(</span><span class="mi">42</span> <span class="mi">42</span> <span class="mi">42</span> <span class="mi">42</span> <span class="mi">42</span><span class="p">)</span>
</pre></div>
</div><div><div class="highlight"><pre><span class="p">(</span><span class="nb">-> </span><span class="nv">store-b</span> <span class="ss">:state</span> <span class="nb">deref </span><span class="p">(</span><span class="nf">get-in</span> <span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="ss">:state</span> <span class="ss">:commit-graph</span><span class="p">]))</span>
<span class="nv">=></span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span> <span class="p">[]</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"108d6e8e-8547-58f9-bb31-a0705800bda8"</span> <span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"06118e59-303f-51ed-8595-64a2119bf30d"</span><span class="p">]}</span>
</pre></div>
</div><div><div class="highlight"><pre><span class="p">(</span><span class="nf">stop</span> <span class="nv">peer-a</span><span class="p">)</span>
<span class="p">(</span><span class="nf">stop</span> <span class="nv">peer-b</span><span class="p">)</span>
</pre></div>
</div><div><a name="tests-for-pulling-cdvcs"></a><h3>1.1 Tests for pulling CDVCS</h3></div><div><div class="highlight"><pre><span class="p">(</span><span class="kd">defn </span><span class="nv">zero-date-fn</span> <span class="p">[]</span> <span class="p">(</span><span class="nf">java.util.Date.</span> <span class="mi">0</span><span class="p">))</span>
<span class="p">(</span><span class="kd">defn </span><span class="nv">test-env</span> <span class="p">[</span><span class="nv">f</span><span class="p">]</span>
<span class="p">(</span><span class="nb">binding </span><span class="p">[</span><span class="nv">*date-fn*</span> <span class="nv">zero-date-fn</span><span class="p">]</span>
<span class="p">(</span><span class="nf">f</span><span class="p">)))</span>
<span class="p">(</span><span class="k">let </span><span class="p">[</span><span class="nv">store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))</span>
<span class="nv">atomic-pull-store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))]</span>
<span class="p">(</span><span class="nf">test-env</span>
<span class="o">#</span><span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">pull-cdvcs!</span> <span class="nv">store</span> <span class="nv">atomic-pull-store</span>
<span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span>
<span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span><span class="p">}})]</span>
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">}})]</span>
<span class="p">(</span><span class="k">fn </span><span class="nv">check</span> <span class="p">[</span><span class="nv">store</span> <span class="nv">new-commit-ids</span><span class="p">]</span>
<span class="p">(</span><span class="nf">go-try</span> <span class="p">(</span><span class="nf">fact</span> <span class="nv">new-commit-ids</span> <span class="nv">=></span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span><span class="p">})</span>
<span class="nv">true</span><span class="p">))])))</span>
<span class="nv">=></span> <span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span>
<span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span>,
<span class="ss">:op</span> <span class="p">{</span><span class="ss">:method</span> <span class="ss">:pull</span>,
<span class="ss">:version</span> <span class="mi">1</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span><span class="p">}</span>,
<span class="ss">:commit-graph</span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span>
<span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">]}}}]</span>
<span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">store</span><span class="p">)</span> <span class="nv">=></span> <span class="p">{}</span>
<span class="p">(</span><span class="nb">-> </span><span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">atomic-pull-store</span><span class="p">)</span>
<span class="p">(</span><span class="nf">get-in</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]))</span> <span class="nv">=></span>
<span class="o">#</span><span class="nv">replikativ.crdt.CDVCS</span><span class="p">{</span><span class="ss">:commit-graph</span> <span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">}</span>,
<span class="ss">:version</span> <span class="mi">1</span><span class="p">})</span>
</pre></div>
</div><div><p>A test checking that automatic pulls happen atomically never inducing a conflict.</p></div><div><div class="highlight"><pre><span class="p">(</span><span class="k">let </span><span class="p">[</span><span class="nv">store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))</span>
<span class="nv">atomic-pull-store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))]</span>
<span class="p">(</span><span class="nf">test-env</span>
<span class="o">#</span><span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">pull-cdvcs!</span> <span class="nv">store</span> <span class="nv">atomic-pull-store</span>
<span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="mi">1</span> <span class="p">[]</span>
<span class="mi">2</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="mi">3</span> <span class="p">[</span><span class="mi">2</span><span class="p">]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="mi">3</span><span class="p">}})]</span>
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="mi">1</span> <span class="p">[]</span>
<span class="mi">2</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="mi">4</span> <span class="p">[</span><span class="mi">2</span><span class="p">]}</span>,
<span class="ss">:heads</span> <span class="o">#</span><span class="p">{</span><span class="mi">4</span><span class="p">}})]</span>
<span class="p">(</span><span class="k">fn </span><span class="nv">check</span> <span class="p">[</span><span class="nv">store</span> <span class="nv">new-commit-ids</span><span class="p">]</span>
<span class="p">(</span><span class="nf">go-try</span> <span class="p">(</span><span class="nf">fact</span> <span class="nv">new-commit-ids</span> <span class="nv">=></span> <span class="o">#</span><span class="p">{})</span>
<span class="nv">true</span><span class="p">))])))</span>
<span class="nv">=></span> <span class="ss">:rejected</span>
<span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">store</span><span class="p">)</span> <span class="nv">=></span> <span class="p">{}</span>
<span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">atomic-pull-store</span><span class="p">)</span> <span class="nv">=></span> <span class="p">{})</span>
</pre></div>
</div><div><div class="highlight"><pre><span class="p">(</span><span class="k">let </span><span class="p">[</span><span class="nv">store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))</span>
<span class="nv">atomic-pull-store</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">new-mem-store</span><span class="p">))]</span>
<span class="p">(</span><span class="nf">test-env</span>
<span class="o">#</span><span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">pull-cdvcs!</span> <span class="nv">store</span> <span class="nv">atomic-pull-store</span>
<span class="p">[[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]</span>,
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span>
<span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">]</span>
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"24c41811-9f1a-55c6-9de7-0eea379838fb"</span>
<span class="p">[</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">]}</span>,
<span class="ss">:heads</span>
<span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"14c41811-9f1a-55c6-9de7-0eea379838fb"</span>
<span class="o">#</span><span class="nv">uuid</span> <span class="s">"24c41811-9f1a-55c6-9de7-0eea379838fb"</span><span class="p">}})]</span>
<span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span>
<span class="p">(</span><span class="nf">-downstream</span> <span class="p">(</span><span class="nf"><??</span> <span class="p">(</span><span class="nf">ensure-crdt</span> <span class="nv">store</span> <span class="p">[</span><span class="s">"mail:[email protected]"</span> <span class="o">#</span><span class="nv">uuid</span> <span class="s">"790f85e2-b48a-47be-b2df-6ad9ccbc73d6"</span><span class="p">]</span> <span class="p">{</span><span class="ss">:crdt</span> <span class="ss">:cdvcs</span><span class="p">}))</span>
<span class="p">{</span><span class="ss">:commit-graph</span>
<span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span> <span class="p">[]}</span>,
<span class="ss">:heads</span>
<span class="o">#</span><span class="p">{</span><span class="o">#</span><span class="nv">uuid</span> <span class="s">"05fa8703-0b72-52e8-b6da-e0b06d2f4161"</span><span class="p">}})]</span>
<span class="p">(</span><span class="k">fn </span><span class="nv">check</span> <span class="p">[</span><span class="nv">store</span> <span class="nv">new-commit-ids</span><span class="p">]</span>
<span class="p">(</span><span class="nf">go-try</span> <span class="p">(</span><span class="nf">fact</span> <span class="nv">new-commit-ids</span> <span class="nv">=></span> <span class="o">#</span><span class="p">{})</span>
<span class="nv">true</span><span class="p">))])))</span>
<span class="nv">=></span> <span class="ss">:rejected</span>
<span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">store</span><span class="p">)</span> <span class="nv">=></span> <span class="p">{}</span>
<span class="o">@</span><span class="p">(</span><span class="ss">:state</span> <span class="nv">atomic-pull-store</span><span class="p">)</span> <span class="nv">=></span> <span class="p">{})</span>
</pre></div>
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