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<h1 id="sync-bridge">Sync Bridge<a class="headerlink" href="#sync-bridge" title="Permanent link">&para;</a></h1>
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<p>The sync bridge mirrors Fossil repositories to GitHub and GitLab as downstream read-only copies.</p>
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<h2 id="how-it-works">How It Works<a class="headerlink" href="#how-it-works" title="Permanent link">&para;</a></h2>
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<pre class="mermaid"><code>flowchart LR
913
Fossil["Fossil Repo&lt;br/&gt;(source of truth)"] --&gt; Bridge["Sync Bridge&lt;br/&gt;(Celery task)"]
914
Bridge --&gt; Git["Git Export"]
915
Git --&gt; GitHub["GitHub Mirror"]
916
Git --&gt; GitLab["GitLab Mirror"]</code></pre>
917
<p>The bridge:</p>
918
<ol>
919
<li>Exports Fossil commits as Git commits</li>
920
<li>Pushes to configured Git remotes</li>
921
<li>Optionally syncs tickets to GitHub/GitLab Issues</li>
922
<li>Optionally syncs wiki pages to repo docs</li>
923
</ol>
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<h2 id="what-gets-synced">What Gets Synced<a class="headerlink" href="#what-gets-synced" title="Permanent link">&para;</a></h2>
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<table>
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<thead>
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<tr>
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<th>Fossil Artifact</th>
929
<th>Git Target</th>
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<th>Configurable</th>
931
</tr>
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</thead>
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<tbody>
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<tr>
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<td>Commits</td>
936
<td>Git commits</td>
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<td>Always</td>
938
</tr>
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<tr>
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<td>Tags</td>
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<td>Git tags</td>
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<td>Always</td>
943
</tr>
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<tr>
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<td>Branches</td>
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<td>Git branches</td>
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<td>Always</td>
948
</tr>
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<tr>
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<td>Tickets</td>
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<td>GitHub/GitLab Issues</td>
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<td>Optional</td>
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</tr>
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<tr>
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<td>Wiki</td>
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<td>Repository docs</td>
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<td>Optional</td>
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</tr>
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</tbody>
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</table>
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<h2 id="configuration">Configuration<a class="headerlink" href="#configuration" title="Permanent link">&para;</a></h2>
962
<p>Set up mirroring through the Django management UI or environment variables:</p>
963
<div class="highlight"><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="c1"># GitHub mirror</span>
964
<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="nv">GITHUB_TOKEN</span><span class="o">=</span>ghp_xxxxxxxxxxxx
965
<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a>
966
<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="c1"># GitLab mirror</span>
967
<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="nv">GITLAB_TOKEN</span><span class="o">=</span>glpat-xxxxxxxxxxxx
968
</code></pre></div>
969
<p>Per-repository mirror configuration is managed in the dashboard under <strong>Repository Settings &gt; Sync</strong>.</p>
970
<h2 id="sync-modes">Sync Modes<a class="headerlink" href="#sync-modes" title="Permanent link">&para;</a></h2>
971
<h3 id="on-demand">On-Demand<a class="headerlink" href="#on-demand" title="Permanent link">&para;</a></h3>
972
<p>Trigger a sync manually from the dashboard or CLI:</p>
973
<div class="highlight"><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>django<span class="w"> </span>python<span class="w"> </span>manage.py<span class="w"> </span>fossil_sync<span class="w"> </span>my-project
974
</code></pre></div>
975
<h3 id="scheduled">Scheduled<a class="headerlink" href="#scheduled" title="Permanent link">&para;</a></h3>
976
<p>Configure a Celery Beat schedule to sync at regular intervals:</p>
977
<div class="highlight"><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="c1"># Runs every 15 minutes</span>
978
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="n">CELERY_BEAT_SCHEDULE</span> <span class="o">=</span> <span class="p">{</span>
979
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a> <span class="s1">&#39;sync-all-repos&#39;</span><span class="p">:</span> <span class="p">{</span>
980
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a> <span class="s1">&#39;task&#39;</span><span class="p">:</span> <span class="s1">&#39;fossil.tasks.sync_all&#39;</span><span class="p">,</span>
981
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a> <span class="s1">&#39;schedule&#39;</span><span class="p">:</span> <span class="mf">900.0</span><span class="p">,</span>
982
<a id="__codelineno-2-6" name="__codelineno-2-6" href="#__codelineno-2-6"></a> <span class="p">},</span>
983
<a id="__codelineno-2-7" name="__codelineno-2-7" href="#__codelineno-2-7"></a><span class="p">}</span>
984
</code></pre></div>
985
<h3 id="upstream-pull">Upstream Pull<a class="headerlink" href="#upstream-pull" title="Permanent link">&para;</a></h3>
986
<p>Pull updates from a remote Fossil server into your local instance:</p>
987
<div class="highlight"><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a>docker<span class="w"> </span>compose<span class="w"> </span><span class="nb">exec</span><span class="w"> </span>django<span class="w"> </span>python<span class="w"> </span>manage.py<span class="w"> </span>fossil_pull<span class="w"> </span>my-project
988
</code></pre></div>
989
<div class="admonition warning">
990
<p class="admonition-title">Direction matters</p>
991
<p>The sync bridge is <strong>one-way</strong>: Fossil to Git. Changes pushed directly to a Git mirror will be overwritten on the next sync. Always push to the Fossil repo.</p>
992
</div>
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