It probably is a good idea.<br><br>Perhaps the changes can be done in the Package.swift file but allow nesting of dependencies.<br><br>Suppose your dependency is like this where P is your current project<br><br>P --&gt; A --&gt; B<br><br>Normally P we would describe its dependency on A while B would be abstracted away.  In A, there would be another Package.swift file describing its dependency on B.<br><br>However if we add the ability to NEST the dependency graph in P&#39;s Package.swift it could serve as an override to the default behavior.<br><br>import PackageDescription<br><br>let package = Package(<br>    name: &quot;P&quot;,<br>    targets: [],<br>    dependencies: [<br>        .Package(url: &quot;<a href="https://blah.com/A.git">https://blah.com/A.git</a>&quot;,<br>                 majorVersion: 1, depdencies: [<br>                        .Package(url: &quot;<a href="https://blahblah.com/B.git">https://blahblah.com/B.git</a>, branch: &quot;test&quot;)<br>                 ]),<br>     <br>    ]<br>)<br><br><br><div class="gmail_quote"><div dir="ltr">On Tue, Jan 24, 2017 at 3:28 PM Daniel Dunbar via swift-evolution &lt;<a href="mailto:swift-evolution@swift.org">swift-evolution@swift.org</a>&gt; wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word" class="gmail_msg">I am reposting this since the URLs were mangled in the original email.<div class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Hello Swift community,<br class="gmail_msg"><br class="gmail_msg">The review of SE-0149 “ Package Manager Support for Top of Tree development&quot; begins now and runs through January 31, 2017. The proposal is available here:<br class="gmail_msg">  <a href="https://github.com/apple/swift-evolution/blob/master/proposal" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/proposal</a>s/<a href="http://0149-package-manager-top-of-tree.md" class="gmail_msg" target="_blank">0149-package-manager-top-of-tree.md</a><br class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">Reviews are an important part of the Swift evolution process. All reviews should be sent to the swift-build-dev and swift-evolution mailing lists at<br class="gmail_msg">  <a href="https://lists.swift.org/mailman/listinfo/swift-build-dev" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-build-dev</a><br class="gmail_msg">  <a href="https://lists.swift.org/mailman/listinfo/swift-evolution" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-evolution</a><br class="gmail_msg">or, if you would like to keep your feedback private, directly to the review manager. When replying, please try to keep the proposal link at the top of the message:<br class="gmail_msg">  <a href="https://github.com/apple/swift-evolution/blob/master/proposals/0149-package-manager-top-of-tree.md" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/proposals/0149-package-manager-top-of-tree.md</a><br class="gmail_msg"><br class="gmail_msg"></div><div class="gmail_msg">What goes into a review?</div><div class="gmail_msg"><br class="gmail_msg">The goal of the review process is to improve the proposal under review through constructive criticism and, eventually, determine the direction of Swift. When writing your review, here are some questions you might want to answer in your review:<br class="gmail_msg"><br class="gmail_msg"><div class="gmail_msg"><span class="m_2093087680778298787Apple-tab-span gmail_msg" style="white-space:pre-wrap">        </span>• What is your evaluation of the proposal?<br class="gmail_msg"></div><div class="gmail_msg"><span class="m_2093087680778298787Apple-tab-span gmail_msg" style="white-space:pre-wrap">        </span>• Is the problem being addressed significant enough to warrant a change to Swift?<br class="gmail_msg"></div><div class="gmail_msg"><span class="m_2093087680778298787Apple-tab-span gmail_msg" style="white-space:pre-wrap">        </span>• Does this proposal fit well with the feel and direction of Swift?<br class="gmail_msg"></div><div class="gmail_msg"><span class="m_2093087680778298787Apple-tab-span gmail_msg" style="white-space:pre-wrap">        </span>• If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?<br class="gmail_msg"></div><div class="gmail_msg"><span class="m_2093087680778298787Apple-tab-span gmail_msg" style="white-space:pre-wrap">        </span>• How much effort did you put into your review? A glance, a quick reading, or an in-depth study?<br class="gmail_msg"></div>More information about the Swift evolution process is available at<br class="gmail_msg">  <a href="https://github.com/apple/swift-evolution/blob/master/process.md" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/process.md</a></div><div class="gmail_msg"><br class="gmail_msg">Thank you,<br class="gmail_msg">- Daniel<br class="gmail_msg"><br class="gmail_msg">Review Manager<br class="gmail_msg"><div class="gmail_msg"><br class="gmail_msg"><div class="gmail_msg"><blockquote type="cite" class="gmail_msg"><div class="gmail_msg">On Jan 24, 2017, at 8:56 AM, Daniel Dunbar via swift-build-dev &lt;<a href="mailto:swift-build-dev@swift.org" class="gmail_msg" target="_blank">swift-build-dev@swift.org</a>&gt; wrote:</div><br class="m_2093087680778298787Apple-interchange-newline gmail_msg"><div class="gmail_msg"><div style="word-wrap:break-word" class="gmail_msg"><div dir="auto" style="word-wrap:break-word" class="gmail_msg"><div style="word-wrap:break-word" class="gmail_msg"><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">Hello Swift community,</p><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">The review of SE-0149 “ Package Manager Support for Top of Tree development&quot; begins now and runs through January 31, 2017. The proposal is available here:</p><blockquote style="box-sizing:border-box;margin:0px 0px 16px;padding:0px 1em;border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221);background-color:rgb(255,255,255)" class="gmail_msg"><div style="color:rgb(119,119,119);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg"><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0149-package-manager-top-of-tree.md" class="gmail_msg" target="_blank"><font color="#4078c0" class="gmail_msg"><span style="box-sizing:border-box" class="gmail_msg"></span></font></a><font color="#4078c0" class="gmail_msg"><a href="https://github.com/apple/swift-evolution/blob/master/proposals/XXX-xxxxxxxx" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/proposal</a>s/</font><u style="color:rgb(64,120,192)" class="gmail_msg"><a href="http://0149-package-manager-top-of-tree.md" class="gmail_msg" target="_blank">0149-package-manager-top-of-tree.md</a></u></div></blockquote><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">Reviews are an important part of the Swift evolution process. All reviews should be sent to the swift-build-dev and swift-evolution mailing lists at</p><blockquote style="box-sizing:border-box;margin:0px 0px 16px;padding:0px 1em;color:rgb(119,119,119);border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg"><div style="box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg"><font color="#4078c0" class="gmail_msg"><span style="box-sizing:border-box" class="gmail_msg"><a href="https://lists.swift.org/mailman/listinfo/swift-build-dev" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-build-dev</a></span></font></div><div style="box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg"><a href="https://lists.swift.org/mailman/listinfo/swift-evolution" style="box-sizing:border-box;background-color:transparent;color:rgb(64,120,192);text-decoration:none" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-evolution</a></div></blockquote><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">or, if you would like to keep your feedback private, directly to the review manager. When replying, please try to keep the proposal link at the top of the message:</p><blockquote style="box-sizing:border-box;margin:0px 0px 16px;padding:0px 1em;color:rgb(119,119,119);border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg"><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px" class="gmail_msg">Proposal link:</p><blockquote style="box-sizing:border-box;margin:0px 0px 16px;padding:0px 1em;border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221)" class="gmail_msg"><div style="box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg"><a href="https://github.com/apple/swift-evolution/blob/master/proposals/0149-package-manager-top-of-tree.md" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/proposals/0149-package-manager-top-of-tree.md</a></div></blockquote><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px" class="gmail_msg">Reply text</p><blockquote style="box-sizing:border-box;margin:0px;padding:0px 1em;border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221)" class="gmail_msg"><div style="box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg">Other replies</div></blockquote></blockquote><h5 style="box-sizing:border-box;margin-top:24px;margin-bottom:16px;line-height:1.25;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;background-color:rgb(255,255,255)" class="gmail_msg"><span style="font-size:0.875em" class="gmail_msg"><a id="m_2093087680778298787user-content-what-goes-into-a-review-1" class="m_2093087680778298787anchor gmail_msg" href="https://github.com/apple/swift-evolution#what-goes-into-a-review-1" style="box-sizing:border-box;background-color:transparent;color:rgb(64,120,192);text-decoration:none;float:left;padding-right:4px;line-height:1" target="_blank"><u class="gmail_msg"></u><u class="gmail_msg"></u><u class="gmail_msg"></u><u class="gmail_msg"></u></a></span><font size="3" class="gmail_msg">What goes into a review?</font></h5><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">The goal of the review process is to improve the proposal under review through constructive criticism and, eventually, determine the direction of Swift. When writing your review, here are some questions you might want to answer in your review:</p><ul style="box-sizing:border-box;padding-left:2em;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg"><li style="box-sizing:border-box" class="gmail_msg">What is your evaluation of the proposal?</li><li style="box-sizing:border-box;margin-top:0.25em" class="gmail_msg">Is the problem being addressed significant enough to warrant a change to Swift?</li><li style="box-sizing:border-box;margin-top:0.25em" class="gmail_msg">Does this proposal fit well with the feel and direction of Swift?</li><li style="box-sizing:border-box;margin-top:0.25em" class="gmail_msg">If you have used other languages or libraries with a similar feature, how do you feel that this proposal compares to those?</li><li style="box-sizing:border-box;margin-top:0.25em" class="gmail_msg">How much effort did you put into your review? A glance, a quick reading, or an in-depth study?</li></ul><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">More information about the Swift evolution process is available at</p><blockquote style="box-sizing:border-box;margin:0px 0px 16px;padding:0px 1em;color:rgb(119,119,119);border-left-width:0.25em;border-left-style:solid;border-left-color:rgb(221,221,221);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg"><div style="box-sizing:border-box;margin-top:0px;margin-bottom:0px" class="gmail_msg"><a href="https://github.com/apple/swift-evolution/blob/master/process.md" style="box-sizing:border-box;background-color:transparent;color:rgb(64,120,192);text-decoration:none" class="gmail_msg" target="_blank">https://github.com/apple/swift-evolution/blob/master/process.md</a></div></blockquote><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">Thank you,</p><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">- Daniel</p><p style="box-sizing:border-box;margin-top:0px;margin-bottom:16px;color:rgb(51,51,51);font-family:-apple-system,BlinkMacSystemFont,&#39;Segoe UI&#39;,Helvetica,Arial,sans-serif,&#39;Apple Color Emoji&#39;,&#39;Segoe UI Emoji&#39;,&#39;Segoe UI Symbol&#39;;font-size:16px;background-color:rgb(255,255,255)" class="gmail_msg">Review Manager</p></div></div></div>_______________________________________________<br class="gmail_msg">swift-build-dev mailing list<br class="gmail_msg"><a href="mailto:swift-build-dev@swift.org" class="gmail_msg" target="_blank">swift-build-dev@swift.org</a><br class="gmail_msg"><a href="https://lists.swift.org/mailman/listinfo/swift-build-dev" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-build-dev</a><br class="gmail_msg"></div></blockquote></div><br class="gmail_msg"></div></div></div>_______________________________________________<br class="gmail_msg">
swift-evolution mailing list<br class="gmail_msg">
<a href="mailto:swift-evolution@swift.org" class="gmail_msg" target="_blank">swift-evolution@swift.org</a><br class="gmail_msg">
<a href="https://lists.swift.org/mailman/listinfo/swift-evolution" rel="noreferrer" class="gmail_msg" target="_blank">https://lists.swift.org/mailman/listinfo/swift-evolution</a><br class="gmail_msg">
</blockquote></div>