https://wiki.event-b.org/index.php?title=Proof_Purger_Design&feed=atom&action=history
Proof Purger Design - Revision history
2024-03-28T18:42:11Z
Revision history for this page on the wiki
MediaWiki 1.33.3
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6576&oldid=prev
imported>Mathieu: Category:Proof
2009-08-12T12:54:14Z
<p><a href="/index.php/Category:Proof" title="Category:Proof">Category:Proof</a></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 12:54, 12 August 2009</td>
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imported>Mathieu
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6575&oldid=prev
imported>Laurent: /* Unused Proofs and Files */
2009-01-29T13:43:50Z
<p><span dir="auto"><span class="autocomment">Unused Proofs and Files</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:43, 29 January 2009</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Unused Proofs and Files===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Unused Proofs and Files===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">User </del>selection must first be filtered to <del class="diffchange diffchange-inline">get </del>the files to search in. <del class="diffchange diffchange-inline">Selection </del>may contain Event-B files or projects. All files of selected <del class="diffchange diffchange-inline">projects </del>are considered selected <del class="diffchange diffchange-inline">as well</del>. In case a file and its parent project are both selected, the file plus all other project files are processed, just as if only the project was selected.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The user </ins>selection must first be filtered to <ins class="diffchange diffchange-inline">compute </ins>the <ins class="diffchange diffchange-inline">list of </ins>files to search in. <ins class="diffchange diffchange-inline">A selection </ins>may contain Event-B files or projects. All files of <ins class="diffchange diffchange-inline">a </ins>selected <ins class="diffchange diffchange-inline">project </ins>are considered <ins class="diffchange diffchange-inline">as implicitly </ins>selected. In case a file and its parent project are both selected, the file plus all other project files are processed, just as if only the project was selected.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Computing unused proofs consists in scanning all proofs and listing those having no PO sequent in the associated PO file.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Computing unused proofs consists in scanning all proofs and listing those having no <ins class="diffchange diffchange-inline">corresponding </ins>PO sequent in the associated PO file.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unused proof files are empty proof files for which no associated PS file exists. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Unused proof files are empty proof files for which no associated PS file exists. </div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, <ins class="diffchange diffchange-inline">the latter </ins>being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td colspan="2"> </td></tr>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If none are found, a message is shown and the action is complete.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If none are found, a message is shown and the action is complete.</div></td></tr>
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imported>Laurent
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6574&oldid=prev
imported>Laurent: /* Purpose */
2009-01-29T13:40:25Z
<p><span dir="auto"><span class="autocomment">Purpose</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 13:40, 29 January 2009</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Purpose==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Purpose==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">Proofs </del>are stored in <del class="diffchange diffchange-inline">proof files</del>. <del class="diffchange diffchange-inline">But it can happen quite often that proof obligations disappear, leaving unnecessary </del>proofs <del class="diffchange diffchange-inline">in files. The purpose </del>of <del class="diffchange diffchange-inline">the proof purger is </del>to <del class="diffchange diffchange-inline">allow </del>the <del class="diffchange diffchange-inline">user to get rid of these proofs by selecting projects and/or files </del>to <del class="diffchange diffchange-inline">purge. In addition, empty proof files are also proposed for purging</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Both automated and interactive proofs </ins>are stored in <ins class="diffchange diffchange-inline">the Rodin database</ins>. <ins class="diffchange diffchange-inline">As </ins>proofs <ins class="diffchange diffchange-inline">might have needed a lot </ins>of <ins class="diffchange diffchange-inline">user effort </ins>to <ins class="diffchange diffchange-inline">create, </ins>the <ins class="diffchange diffchange-inline">Rodin platform takes care </ins>to <ins class="diffchange diffchange-inline">''never'' erase them</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del class="diffchange diffchange-inline">While </del>this <del class="diffchange diffchange-inline">purging could be done automatically</del>, <del class="diffchange diffchange-inline">proof files are considered </del>to <del class="diffchange diffchange-inline">be owned by the </del>user<del class="diffchange diffchange-inline">, so he alone </del>can <del class="diffchange diffchange-inline">decide which </del>proofs to <del class="diffchange diffchange-inline">delete </del>or <del class="diffchange diffchange-inline">keep (he may need some of them in the future)</del>.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">As a consequence of </ins>this <ins class="diffchange diffchange-inline">shyness</ins>, <ins class="diffchange diffchange-inline">proofs have a strong tendency </ins>to <ins class="diffchange diffchange-inline">accumulate in </ins>user <ins class="diffchange diffchange-inline">projects and </ins>can <ins class="diffchange diffchange-inline">take a lot of space in the hard disk. A quick survey of existing projects showed that a lot of </ins>proofs <ins class="diffchange diffchange-inline">were just lying around without user even being aware of their existence.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">The purpose of the proof purger is </ins>to <ins class="diffchange diffchange-inline">allow users to explicitly request the deletion of unused proofs by selecting projects and/</ins>or <ins class="diffchange diffchange-inline">files to purge. In addition, empty proof files are also proposed for purging</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Popup menu extension==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Popup menu extension==</div></td></tr>
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imported>Laurent
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6573&oldid=prev
imported>Nicolas: Proof Purger moved to Proof Purger Design: Clarify the intended aim of the document.
2009-01-06T15:59:57Z
<p><a href="/index.php/Proof_Purger" class="mw-redirect" title="Proof Purger">Proof Purger</a> moved to <a href="/index.php/Proof_Purger_Design" title="Proof Purger Design">Proof Purger Design</a>: Clarify the intended aim of the document.</p>
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<td colspan="1" style="background-color: #fff; color: #222; text-align: center;">Revision as of 15:59, 6 January 2009</td>
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imported>Nicolas
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6572&oldid=prev
imported>Mathieu: Category:Developer documentation is parent category of Design
2008-12-18T10:47:57Z
<p><a href="/index.php/Category:Developer_documentation" title="Category:Developer documentation">Category:Developer documentation</a> is parent category of Design</p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 10:47, 18 December 2008</td>
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imported>Mathieu
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6571&oldid=prev
imported>Nicolas at 16:28, 17 December 2008
2008-12-17T16:28:59Z
<p></p>
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<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 16:28, 17 December 2008</td>
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<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Purpose==</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Purpose==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Proofs are stored in proof files. But it can happen quite often that proof obligations disappear, leaving unnecessary proofs in files. The purpose of the proof purger is to allow the user to get rid of these proofs by selecting projects and/or files to purge.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Proofs are stored in proof files. But it can happen quite often that proof obligations disappear, leaving unnecessary proofs in files. The purpose of the proof purger is to allow the user to get rid of these proofs by selecting projects and/or files to purge<ins class="diffchange diffchange-inline">. In addition, empty proof files are also proposed for purging</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While this purging could be done automatically, proof files are considered to be owned by the user, so he alone can decide which proofs to delete or keep (he may need some of them in the future).</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>While this purging could be done automatically, proof files are considered to be owned by the user, so he alone can decide which proofs to delete or keep (he may need some of them in the future).</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l22" >Line 22:</td>
<td colspan="2" class="diff-lineno">Line 22:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>First and third steps are cancellable operations based on the '''ProofPurger''' facilities, whereas the second is a selection dialog.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>First and third steps are cancellable operations based on the '''ProofPurger''' facilities, whereas the second is a selection dialog.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>===Unused Proofs===</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>===Unused Proofs <ins class="diffchange diffchange-inline">and Files</ins>===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>User selection must first be filtered to get the files to search in. Selection may contain Event-B files or projects. All files of selected projects are considered selected as well. In case a file and its parent project are both selected, the file plus all other project files are processed, just as if only the project was selected.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>User selection must first be filtered to get the files to search in. Selection may contain Event-B files or projects. All files of selected projects are considered selected as well. In case a file and its parent project are both selected, the file plus all other project files are processed, just as if only the project was selected.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Computing unused proofs consists in scanning all proofs and listing those having no PO sequent in the associated PO file. </div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Computing unused proofs consists in scanning all proofs and listing those having no PO sequent in the associated PO file.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Unused proof files are empty proof files for which no associated PS file exists. </ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If none are found, a message is shown and the action is complete.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>If none are found, a message is shown and the action is complete.</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l38" >Line 38:</td>
<td colspan="2" class="diff-lineno">Line 42:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Purging===</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Purging===</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Before deleting anything, selected proofs are verified, in case some of them would be used. This should not be possible as the dialog only offers to select among unused proofs; it is rather a safety check.</div></td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Before deleting anything, selected proofs <ins class="diffchange diffchange-inline">and files </ins>are verified, in case some of them would be used. This should not be possible as the dialog only offers to select among unused proofs; it is rather a safety check<ins class="diffchange diffchange-inline">.</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">Then proofs and files are deleted, and modified files are saved</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Then proofs are deleted and files are saved.</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Empty proof files are deleted, only if no associated PS file exists. </del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Design]]</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Design]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Developer documentation]]</ins></div></td></tr>
</table>
imported>Nicolas
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6570&oldid=prev
imported>Mathieu: Category:Design
2008-12-11T21:47:25Z
<p><a href="/index.php/Category:Design" title="Category:Design">Category:Design</a></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en-GB">
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 21:47, 11 December 2008</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l44" >Line 44:</td>
<td colspan="2" class="diff-lineno">Line 44:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Empty proof files are deleted, only if no associated PS file exists. </div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Empty proof files are deleted, only if no associated PS file exists. </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Design]]</ins></div></td></tr>
</table>
imported>Mathieu
https://wiki.event-b.org/index.php?title=Proof_Purger_Design&diff=6569&oldid=prev
imported>Nicolas: New page: ==Purpose== Proofs are stored in proof files. But it can happen quite often that proof obligations disappear, leaving unnecessary proofs in files. The purpose of the proof purger is to al...
2008-12-10T17:12:23Z
<p>New page: ==Purpose== Proofs are stored in proof files. But it can happen quite often that proof obligations disappear, leaving unnecessary proofs in files. The purpose of the proof purger is to al...</p>
<p><b>New page</b></p><div>==Purpose==<br />
<br />
Proofs are stored in proof files. But it can happen quite often that proof obligations disappear, leaving unnecessary proofs in files. The purpose of the proof purger is to allow the user to get rid of these proofs by selecting projects and/or files to purge.<br />
<br />
While this purging could be done automatically, proof files are considered to be owned by the user, so he alone can decide which proofs to delete or keep (he may need some of them in the future).<br />
<br />
==Popup menu extension==<br />
<br />
Integration of the proof purger as a popup menu is achieved in the manifest through the ''org.eclipse.ui.popupMenus'' extension point.<br />
As specified there, the proof purger action will be proposed when selected objects are of type '''IRodinElement'''.<br />
<br />
The action class is '''FilePurgeAction'''.<br />
<br />
==Action==<br />
<br />
Purging is a three-step action:<br />
<br />
* computing unused proofs inside the selection<br />
* showing the user the result and letting him select proofs to delete<br />
* actually deleting proofs<br />
<br />
First and third steps are cancellable operations based on the '''ProofPurger''' facilities, whereas the second is a selection dialog.<br />
<br />
===Unused Proofs===<br />
<br />
User selection must first be filtered to get the files to search in. Selection may contain Event-B files or projects. All files of selected projects are considered selected as well. In case a file and its parent project are both selected, the file plus all other project files are processed, just as if only the project was selected.<br />
<br />
Computing unused proofs consists in scanning all proofs and listing those having no PO sequent in the associated PO file. <br />
<br />
If none are found, a message is shown and the action is complete.<br />
<br />
===Selection dialog===<br />
<br />
Selection of proofs to delete is proposed in a simple checkbox tree viewer, following a "project > file > proof" hierarchy.<br />
<br />
Class architecture is composed of the '''SelectionDialog''' containing the viewer, which is filled with data from the '''ContentProvider''' (for tree structure) and the '''LabelProvider''' (for node names).<br />
<br />
===Purging===<br />
<br />
Before deleting anything, selected proofs are verified, in case some of them would be used. This should not be possible as the dialog only offers to select among unused proofs; it is rather a safety check.<br />
<br />
Then proofs are deleted and files are saved.<br />
<br />
Empty proof files are deleted, only if no associated PS file exists. <br />
This can be explained, as proof file might be empty on purpose (generated by the builder). An empty proof file becomes undesirable only after the component has been deleted. Component deletion does not affect the proof file, being considered a user file. So when the user requests purging, we must keep empty files of existing components and delete the others. The distinction is made by checking the existence of an associated PS file.</div>
imported>Nicolas