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This is an automatically generated e-mail. To reply, visit:
<a href="http://git.reviewboard.kde.org/r/105563/">http://git.reviewboard.kde.org/r/105563/</a>
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<p style="margin-top: 0;">On July 17th, 2012, 10:23 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/105563/diff/2/?file=73175#file73175line282" style="color: black; font-weight: bold; text-decoration: underline;">kdm/backend/bootman.c</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">commitGrub(void)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">menus</span> <span class="o">=</span> <span class="n">addStrArr</span><span class="p">(</span><span class="n">menus</span><span class="p">,</span> <span class="n">linp</span><span class="p">,</span> <span class="n">size</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">as you are putting the submenus into the selection list anyway, "menus" needs to be only a stack of integers (and you can just allocate a fixed-size array for that - nobody is going to nest beyond 3 (does grub even support nesting? i didn't gather that impression).</pre>
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<p>On July 18th, 2012, 12:35 a.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Grub2 now supports nesting (dunno up to which level but I have tested with 3 levels and it worked). Distributions create only one nesting level to my knowledge but that doesn't mean a user can't have custom generation scripts.</pre>
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<p>On July 29th, 2012, 11:58 a.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Another reason we can't use integers is because the submenus' names are prepended to nested menuentries and this list will be shown to the user. We could use integers as internal representation but imho that would be unfair memory-to-code-clarity tradeoff.</pre>
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<p>On July 29th, 2012, 12:38 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">huh? the "menus" array is internal, so any replacement for it should be too by definition.</pre>
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<p>On July 29th, 2012, 12:53 p.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">The contents of the "menus" array appear in the opts array which in turn is public. If you have
submenu 'foo' {
menuentry 'bar' {
}
}
This will be sent as 'foo>bar' to ksmserver. Providing '0>bar' to ksmserver would be quite a hassle (it is valid Grub2 notation but of little use to the user).</pre>
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<p>On July 29th, 2012, 1:06 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">and who exactly said that you are supposed to put stringified integers into opts?</pre>
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<p>On July 29th, 2012, 1:29 p.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">So you suggest that we maintain a stack of integers pointing to the corresponding titles in the "opts" array? Will this be fixed size? If so, what size? If not, should I implement a dynamic stack?</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">all the answers are in the very first comment</pre>
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<p style="margin-top: 0;">On July 17th, 2012, 10:23 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<a href="http://git.reviewboard.kde.org/r/105563/diff/2/?file=73177#file73177line477" style="color: black; font-weight: bold; text-decoration: underline;">ksmserver/shutdowndlg.cpp</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">KSMShutdownDlg::KSMShutdownDlg( QWidget* parent,</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "> <span class="n">QString</span> <span class="n">bootManager</span> <span class="o">=</span> <span class="n">KConfig</span><span class="p">(</span><span class="n">KDE_CONFDIR</span> <span class="s">"/kdm/kdmrc"</span><span class="p">,</span> <span class="n">KConfig</span><span class="o">::</span><span class="n">SimpleConfig</span><span class="p">).</span><span class="n">group</span><span class="p">(</span><span class="s">"Shutdown"</span><span class="p">).</span><span class="n">readEntry</span><span class="p">(</span><span class="s">"BootManager"</span><span class="p">,</span> <span class="s">"None"</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">no way. the backend should directly communicate the hierarchy separator. also to ksmserver (this is just the start):
--- a/kdm/backend/ctrl.c
+++ b/kdm/backend/ctrl.c
@@ -769,9 +769,10 @@ processCtrl(const char *string, int len, int fd, struct display *d)
} else if (!strcmp(ar[0], "listbootoptions")) {
char **opts;
+ const char *sep;
int def, cur, i, j;
if (ar[1])
goto exce;
- switch (getBootOptions(&opts, &def, &cur)) {
+ switch (getBootOptions(&opts, &def, &cur, &sep)) {
case BO_NOMAN:
fLog(d, fd, "notsup", "boot options unavailable");
@@ -796,5 +797,5 @@ processCtrl(const char *string, int len, int fd, struct display *d)
}
freeStrArr(opts);
- writer(fd, cbuf, sprintf(cbuf, "\t%d\t%d\n", def, cur));
+ writer(fd, cbuf, sprintf(cbuf, "\t%d\t%d\t%s\n", def, cur, sep));
goto bust;
} else if (d) {
ossi</pre>
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<p>On July 18th, 2012, 12:35 a.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I didn't quite get you here.</pre>
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<p>On July 18th, 2012, 1:49 a.m., <b>Lamarque Vieira Souza</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">He wants that kdm passes the separator char to ksmserver instead of hardcoding it to '>'. The code above sends the boot options to ksmserver I guess, now including the separator char as parameter. In your patch both grub2 and burg support submenus, do both use '>' as separator? If not then we will need to pass the separator char to ksmserver.</pre>
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<p>On July 18th, 2012, 7:58 a.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Ah, I got it now. Yeah, Grub2 uses '>' without whitespaces around it (Burg follows suit most of the times).</pre>
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<p>On July 29th, 2012, 12:38 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">it's irrelevant what grub or burg use. the interface is supposed to be boot manager agnostic, and should be even re-implementable by another login manger. the mere fact that you have ksmserver read kdm's config file should ring all alarm bells.</pre>
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<p>On July 29th, 2012, 12:53 p.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">And what would be the separator? It has to be a sequence of characters that will never be found in a menu entry title in any boot manager configuration.</pre>
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<p>On July 29th, 2012, 1:06 p.m., <b>Oswald Buddenhagen</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">the point of the above code snippet is precisely to demonstrate how kdm would publish the separator</pre>
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<p>On July 29th, 2012, 1:29 p.m., <b>Konstantinos Smanis</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I got that, but what separator will kdm choose? It has to be something unique amongst all boot managers.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">as the boot manager support is hard-coded in kdm, you can just continue to use ">" for simplicity. but the ksmserver side needs to be able to deal with arbitrary strings (including multiple chars).</pre>
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<p>- Oswald</p>
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<p>On July 29th, 2012, 11:58 a.m., Konstantinos Smanis wrote:</p>
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<div>Review request for KDE Runtime and Oswald Buddenhagen.</div>
<div>By Konstantinos Smanis.</div>
<p style="color: grey;"><i>Updated July 29, 2012, 11:58 a.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Recent versions of GRUB2 introduce submenus which allow for nesting levels to appear (instead of the flat list in the past).
This patch consists of two parts: the parsing part in KDM (bootman.c) and creating a menu structure from the parsed list in ksmserver (shutdowndlg.*)
The parsing part produces a list like this:
Gentoo GNU/Linux
Advanced options for Gentoo GNU/Linux
Advanced options for Gentoo GNU/Linux>Gentoo GNU/Linux, with Linux 3.4.4
Advanced options for Gentoo GNU/Linux>Gentoo GNU/Linux, with Linux 3.4.4 (recovery mode)
Windows 7 (loader) (on /dev/sda2)
???? ?????????
which is then converted into the menu structure. These full identifiers can be properly used with `grub2-reboot`.
More info about submenus: http://ubuntuforums.org/showthread.php?p=10720316
Also check the related bug.
The parsing part of the patch can be applied in the KDE/4.9 and master branches as well (tested and working in KDE 4.8.95 and 4.9.x). ksmserver has migrated to QML since then however, and the menu structure has to wait. Currently it looks like this: http://i50.tinypic.com/96bw35.png
Related ML-discussion: http://lists.kde.org/?l=kde-core-devel&m=134160279511422&w=2
Update: There is a proper fix now for KDE/4.9 and master: https://git.reviewboard.kde.org/r/105568/</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Works with the menu file produced in my system with `grub2-mkconfig`.
Also works with a custom menu file I made (as shown in the second screenshot).</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="http://bugs.kde.org/show_bug.cgi?id=297209">297209</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>kdm/backend/bootman.c <span style="color: grey">(8b834d2)</span></li>
<li>ksmserver/shutdowndlg.h <span style="color: grey">(e5f0942)</span></li>
<li>ksmserver/shutdowndlg.cpp <span style="color: grey">(a09a1a7)</span></li>
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<p><a href="http://git.reviewboard.kde.org/r/105563/diff/" style="margin-left: 3em;">View Diff</a></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Screenshots </h1>
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<a href="http://git.reviewboard.kde.org/r/105563/s/633/"><img src="http://git.reviewboard.kde.org/media/uploaded/images/2012/07/13/snapshot5_400x100.png" style="border: 1px black solid;" alt="Distribution's stock menu file" /></a>
<a href="http://git.reviewboard.kde.org/r/105563/s/634/"><img src="http://git.reviewboard.kde.org/media/uploaded/images/2012/07/13/snapshot6_400x100.png" style="border: 1px black solid;" alt="A custom menu file for testing" /></a>
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