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• Cygwin vim doesn't load files in runtimepath

  - by durron597

  I created a custom syntax file, and but none of the files in $VIMRUNTIME seem to load. I followed these pieces of the documentation: http://vimdoc.sourceforge.net/htmldoc/filetype.html#new-filetype http://vimdoc.sourceforge.net/htmldoc/syntax.html#mysyntaxfile When I do :echo &runtimepath I get: /home/durron597/.vim,/usr/share/vim/vimfiles,/usr/share/vim/vim73,/usr/share/vim/vimfiles/after,/home/durron597/.vim/after However, if I open a file with vim -D, here's the listed files as I type f: /etc/vimrc /home/durron597/.vimrc /usr/share/vim/vim73/plugin/getscriptPlugin.vim /usr/share/vim/vim73/plugin/gzip.vim /usr/share/vim/vim73/plugin/matchparen.vim /usr/share/vim/vim73/plugin/netrwPlugin.vim /usr/share/vim/vim73/plugin/rrhelper.vim /usr/share/vim/vim73/plugin/spellfile.vim /usr/share/vim/vim73/plugin/tarPlugin.vim /usr/share/vim/vim73/plugin/tohtml.vim /usr/share/vim/vim73/plugin/vimballPlugin.vim /usr/share/vim/vim73/plugin/zipPlugin.vim Here's the output of ls -lR durron597@Durron597 ~/.vim $ ls -lR .: total 0 drwxr-xr-x+ 1 durron597 None 0 Jun 3 11:06 ftdetect drwxr-xr-x+ 1 durron597 None 0 Jun 3 11:06 syntax ./ftdetect: total 1.0K -rw-r--r-- 1 durron597 None 45 Jun 3 11:06 mytype.vim ./syntax: total 4.0K -rw-r--r-- 1 durron597 None 740 Jun 3 11:06 mytype.vim The exact exact paths are: /home/durron597/.vim/ftdetect/mytype.vim /home/durron597/.vim/syntax/mytype.vim Note: the problem is that these files don't seem to be loaded at all, not that these files have internal mistakes Output of :filetype filetype detection:ON plugin:ON indent:OFF Edit 3: No, really, the files are in the right place: $ find /home -name '*.vim' /home/durron597/.vim /home/durron597/.vim/ftdetect/fix.vim /home/durron597/.vim/syntax/fix.vim

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• Enabling SSL on apache2 causes address already in use error

  - by durron597

  My server works just fine on a normal apache2 install. Now, I'm trying to install subversion on this server using this guide: http://alephzarro.com/blog/2007/01/07/installation-of-subversion-on-ubuntu-with-apache-ssl-and-basicauth/ I get the following error: (98)Address already in use: make_sock: could not bind to address 0.0.0.0:443 When I do grep -rH 443 /etc/apache2/, I get results in two files: ports.conf and sites-enabled/default-ssl I tried it both with and without that last Listen 443 commented out, here's ports.conf: NameVirtualHost *:80 Listen 80 <IfModule mod_ssl.c> NameVirtualHost *:443 Listen 443 </IfModule> <IfModule mod_gnutls.c> Listen 443 </IfModule> #Listen 443 And the first few lines of default-ssl <IfModule mod_ssl.c> <VirtualHost *:443> ServerAdmin webmaster@localhost SSLEngine on SSLCertificateFile /this/isnt/relevant/probably.pem SSLProtocol all SSLCipherSuite HIGH:MEDIUM And netstat -an --inet | grep 443 returns nothing. Any ideas?

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• Two 12.04 machines have the same display settings but different results

  - by durron597

  I have one machine that has a relatively fresh install of 12.04 and one that I inherited. The terminal window in the inherited machine has a really weird font, and the regular one is what I would expect. Especially the behavior of the "m" character is messed up. Note: both of these machines are on the same KVM switch. Here is what I've tried: MyUnity on both machines seem the same .bashrc on both machines seem similar in all the ways that would matter for this issue The terminal profiles on both machines are the default Here are the xrandr outputs: Good xrandr: Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096 VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm 1280x1024 60.0 + 76.0 75.0* 72.0 70.0 1152x864 75.0 1024x768 75.1 70.1 60.0 832x624 74.6 800x600 72.2 75.0 60.3 640x480 72.8 75.0 66.7 60.0 720x400 70.1 Bad xrandr: Screen 0: minimum 8 x 8, current 1280 x 1024, maximum 8192 x 8192 DP-0 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) DP-3 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 376mm x 301mm 1280x1024 60.0*+ 76.0 75.0 72.0 70.0 1152x864 75.0 1024x768 75.0 70.1 60.0 800x600 75.0 72.2 60.3 640x480 75.0 72.8 59.9 Finally here are screenshots of both machines, it seems to really only be Terminal, I have askubuntu behind the terminal window for comparison: Good screenshot: Bad Screenshot: Any thoughts as to what this might be?

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• Bash prompt doesn't print until I interact with console again

  - by durron597

  I don't even know where to begin to diagnose this one. Usually, when a command finishes, the prompt prints itself for the next command. However, that is not happening. Hard to explain with words, I'll just use an example: User@Machine:~$ cp /mnt/mountname/directory/textfile.txt . After waiting several seconds (far too long for this operation on a small file) I press Enter, and see: User@Machine:~$ cp /mnt/mountname/directory/textfile.txt . User@Machine:~$ User@Machine:~$ So clearly the operation had finished, but the prompt didn't display... until I pressed enter, and then BOTH prompts instantly displayed. This error does not happen with commands like cd.

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• Which of these design patterns is superior?

  - by durron597

  I find I tend to design class structures where several subclasses have nearly identical functionality, but one piece of it is different. So I write nearly all the code in the abstract class, and then create several subclasses to do the one different thing. Does this pattern have a name? Is this the best way for this sort of scenario? Option 1: public interface TaxCalc { String calcTaxes(); } public abstract class AbstractTaxCalc implements TaxCalc { // most constructors and fields are here public double calcTaxes(UserFinancials data) { // code double diffNumber = getNumber(data); // more code } abstract protected double getNumber(UserFinancials data); protected double initialTaxes(double grossIncome) { // code return initialNumber; } } public class SimpleTaxCalc extends AbstractCalc { protected double getNumber(UserFinancials data) { double temp = intialCalc(data.getGrossIncome()); // do other stuff return temp; } } public class FancyTaxCalc extends AbstractTaxCalc { protected double getNumber(UserFinancials data) { int temp = initialCalc(data.getGrossIncome()); // Do fancier math return temp; } } Option 2: This version is more like the Strategy pattern, and should be able to do essentially the same sorts of tasks. public class TaxCalcImpl implements TaxCalc { private final TaxMath worker; public DummyImpl(TaxMath worker) { this.worker = worker; } public double calcTaxes(UserFinancials data) { // code double analyzedDouble = initialNumber; int diffNumber = worker.getNumber(data, initialNumber); // more code } protected int initialTaxes(double grossIncome) { // code return initialNumber; } } public interface TaxMath { double getNumber(UserFinancials data, double initial); } Then I could do: TaxCalc dum = new TaxCalcImpl(new TaxMath() { @Override public double getNumber(UserFinancials data, double initial) { double temp = data.getGrossIncome(); // do math return temp; }); And I could make specific implementations of TaxMath for things I use a lot, or I could make a stateless singleton for certain kinds of workers I use a lot. So the question I'm asking is: Which of these patterns is superior, when, and why? Or, alternately, is there an even better third option?

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• How to analyze a scenario where a bug didn't get caught and adjust development workflow to prevent similar errors

  - by durron597

  I had a bug that was really difficult to track down, because all the unit tests were green, but the production application didn't work properly. Here's what happened: I had a filter class that set my application to ignore data that was not in some specified time windows. The unit test, which seemed thorough to me, turned green. Additionally, my integration tests also produced results as expected. Production, however, did not work. As a result of the first two bullets, this problem was very difficult to find. It turned out the problem was that my test dates were using my time zone (America/Chicago) but the production data was providing dates in UTC, which I did not realize, and the logic for the filter wasn't correct for UTC dates. (I was using joda time DateTime objects). Where did my workflow break down? Did I fail to produce a spec that specified that the logic needed to handle dates in any time zone? Did I fail to thoroughly consider all cases at the unit test level? Did I fail to insure the integration test was sufficiently similar to production? Other? What changes can I make to my workflow to better prevent this sort of mistake in the future? How can I more effectively debug a problem when there is an issue in production but not in testing?

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