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• Open Source Highlight: namebench

  - by eddraper

  DNS is a big deal.  Even small incremental changes to improve its performance can yield significant value due to the vast quantity of look-ups required when using the internet.  Until now, It’s always been one of those things I had to kinda take on faith… was my ISP doing a good job?  Are those public DNS server really that much faster?  What about security and privacy concerns? Let me introduce you to namebench.  This is the kinda tool I really love – one that immediately delivers value and is almost over-the-top OCD in its attention to detail. Trust me, this tool is utterly ruthless in it’s quest for getting it right – you’re not left with a big question mark after it presents its data.  The results are conclusive and actionable.  Here’s what is does: It hunts down the fastest DNS servers from your desktop that it can find using thousands of requests.  No, it doesn’t pop up this little dialog in 10 seconds to give you some “off the cuff” answer from a handful of providers.  It takes the better part of 10-15 minutes to run.  When it finishes, it presents you with a veritable horn-o-plenty of data.  Mean response duration, response distribution, bad data,  no stone is left un-turned. Check it out.  You’ll dig it.

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• Ubuntu: What gcc to use when crosscompiling for the STM32 (Cortex-M3)?

  - by Johan

  Hi I'm trying to get started with the STM32 (Cortex-M3) and my plan is get this working from Ubuntu (9.04 / AMD64). To start with I got the Olimex stm32-h103 header board and the Olimex ARM-USB-OCD jtag, and on to of that I will probably use OpenOCD, gcc and Eclipse. But right now I'm looking into what version of gcc to use and how to setup that to be able to crosscompile the code. There seem to be some arm projects out there but I don't know what to start with, can somebody push me in the right direction? Thanks Johan Update: There seems almost to be what I want from codesourcery, but they seem to focus on IA32 and not AMD64. However in the supported devices I find the Cortex-M3 ARM EABI, ARM M-profile Simulator -mcpu=cortex-m3 -mthumb Update: There is a possibility to install IA32 on AMD64, so maybe the marked answer is obsolete already. Update: Found this link about crosscompile for the Cortex-M3. http://www.eluaproject.net/en_tc_cortex.html http://fanplastic.org/gcc-for-arm-eabi/

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• git: how to squash the first two commits?

  - by kch

  With git rebase --interactive <commit> you can squash any number of commits together into a single one. It's an OCD heaven. And that's all great unless you want to squash commits into the initial commit. That seems impossible to do. Any way to achieve it? Moderately related: In a related question, I managed to come up with a different approach to the need of squashing against the first commit, which is, well, to make it the second one. If you're interested: git: how to insert a commit as the first, shifting all the others?

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• .NET Database Apps: Your Preferred Setup

  - by mdvaldosta

  I'm struggling to settle into a pattern for developing typical database driven apps in C# and Visual Studio. There are so many ways to set them up, using drag/drop datasets and adapters or writing the queries manually in ADO.NET or Linq to SQL, Linq to Entities, to bind or not to data bind etc etc. Where to store the connection string, in app.config or in a method or both etc etc. So many tutorials and all of them are different. Everytime I write something I start hating the way it looks and works, so I scrap it and start over. It's getting a bit tedious. Maybe it's alittle of the OCD in me. Would any of you professional developers out there share your method of setting up and structuring your database logic and maybe some sample code? It's really how to go about organizing the code and the method(s) of interacting with SQL that I'm trying to get into a routine with, one that works and won't get me laughed at by someone reviewing it.

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• Windows command line compression/extraction tool?

  - by Will Marcouiller

  I need to write a batch file to unzip files to their current folder from a given root folder. Folder 0 |----- Folder 1 | |----- File1.zip | |----- File2.zip | |----- File3.zip | |----- Folder 2 | |----- File4.zip | |----- Folder 3 |----- File5.zip |----- FileN.zip So, I wish that my batch file is launched like so: ocd.bat /d="Folder 0" Then, make it iterate from within the batch file through all of the subfolders to unzip the files exactly where the .zip files are located. So here's my question: Does the Windows (from XP at least) have a command line for its embedded zip tool? Otherwise, shall I stick to another third-party util?

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• How do I get Xcode and TextMate to calibrate syntax highlighting colours the same way?

  - by Grant Heaslip

  This is a mostly insignificant problem, but it's been bugging me for a while and I figured someone on here might be as ridiculously OCD as I am (this is a programmer community after all). Basically, the problem is that TextMate doesn't seem to calibrate syntax highlighting colours, while Xcode does. What this means in practice is that, while I've faithfully recreated my TextMate theme in Xcode, the syntax highlighting in Xcode seems noticeably less vivid that it does in TextMate. If I use DigitalColor Meter to check the actual colours in Xcode, they don't match the values I entered, while in TextMate they do. Any ideas what's going on here? Thanks!

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• Outlook 2007 - Right Click Email > Move To {Folder Name}

  - by HK1

  I know it seems like an elementary question. What's the simplest and fastest way to move a read/completed email to a different folder in Outlook 2007 (connected to Exchange 2007)? I have a particular user that is challenged by technology. Using keyboard shortcuts is not an option. Dragging and dropping things - forget it. And too many clicks is frustrating to him. He keeps his email inbox completely clean (OCD=True) but he does that by deleting every single email as quickly as he's done with it. If an email can't be resolved in a day or two it almost drives him to insanity. As far as he's concerned, there's only one right thing to do with an email - reply to it and then delete it. He's being asked to save emails unless they are clearly trash. I'm trying to figure out what the simplest method is to move an email to a "Saved Emails" or "Archived" folder (don't confuse "folder" with .PST file, that's irrelevant for this discussion). I envisioned that I could possibly hi-jack every delete and put the email in his Saved folder. But I don't like this option because some emails are truly trash and I don't want him saving those. What I'd really like to do is something like this: Right Click Email in List > Move To {Folder Name} Is there a simple way to do this? Maybe someone has another suggestion on how to handle this situation.

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• Slowdown upon router/modem setup change

  - by Ollie Saunders

  I’ve been using a Belkin FSD7632-4 modem router to connect to my TalkTalk provided ADSL internet connection for some time and been pretty happy with it. Recently, however, the connection has been failing and I decided to get a ASUS RT-N16 instead, which is also a much more capable router generally. The ASUS RT-N16 doesn’t come with a modem built-in so I purchased as Zoom modem as well. I’ve set them both up and am using them to post this message. But I’m a bit miffed to find that I get a significantly and consistently slower downstream rate from the new configuration than with the old Belkin. Belkin modem router: downstream: 3.45 mbps upstream: 0.73 mbps ASUS router + Zoom modem: downstream: 2.71 mbps upstream: 0.66 mbps Any ideas why this is? The really weird thing about this is that the Zoom supports ADSL2 and ADSL2+ but I don’t think the old Belkin does. At first I thought it might be due to the Zoom modem being limited to PPPoE instead of PPPoA, which my ISP supports, but then I tried using PPPoE with the Belkin and that still gave a high speed. I’m using VC-Mux encapsulation with both. VPI of 0 and VCI of 38. I pulled this data off the Zoom: Mode: ADSL2 Line Coding: Trellis On Status: No Defect Link Power State: L0 Downstream Upstream SNR Margin (dB): 12.3 11.8 Attenuation (dB): 43.0 24.9 Output Power (dBm): 12.9 0.0 Attainable Rate (Kbps): 3936 844 Rate (Kbps): 3194 840 MSGc (number of bytes in overhead channel message): 59 10 B (number of bytes in Mux Data Frame): 99 14 M (number of Mux Data Frames in FEC Data Frame): 2 16 T (Mux Data Frames over sync bytes): 1 8 R (number of check bytes in FEC Data Frame): 8 8 S (ratio of FEC over PMD Data Frame length): 1.9833 9.0594 L (number of bits in PMD Data Frame): 839 219 D (interleaver depth): 32 2 Delay (msec): 15 4 Super Frames: 15808 14078 Super Frame Errors: 0 4294967232 RS Words: 513778 111753 RS Correctable Errors: 126 4294967238 RS Uncorrectable Errors: 0 N/A HEC Errors: 0 4294967279 OCD Errors: 0 0 LCD Errors: 0 0 Total Cells: 1920175 237597 Data Cells: 205993 392 Bit Errors: 0 0 Total ES: 0 0 Total SES: 0 0 Total UAS: 34 0

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• Folders in SQL Server Data Tools

  - by jamiet

  Recently I have begun a new project in which I am using SQL Server Data Tools (SSDT) and SQL Server Integration Services (SSIS) 2012. Although I have been using SSDT & SSIS fairly extensively while SQL Server 2012 was in the beta phase I usually find that you don’t learn about the capabilities and quirks of new products until you use them on a real project, hence I am hoping I’m going to have a lot of experiences to share on my blog over the coming few weeks. In this first such blog post I want to talk about file and folder organisation in SSDT. The predecessor to SSDT is Visual Studio Database Projects. When one created a new Visual Studio Database Project a folder structure was provided with “Schema Objects” and “Scripts” in the root and a series of subfolders for each schema: Apparently a few customers were not too happy with the tool arbitrarily creating lots of folders in Solution Explorer and hence SSDT has gone in completely the opposite direction; now no folders are created and new objects will get created in the root – it is at your discretion where they get moved to: After using SSDT for a few weeks I can safely say that I preferred the older way because I never used Solution Explorer to navigate my schema objects anyway so it didn’t bother me how many folders it created. Having said that the thought of a single long list of files in Solution Explorer without any folders makes me shudder so on this project I have been manually creating folders in which to organise files and I have tried to mimic the old way as much as possible by creating two folders in the root, one for all schema objects and another for Pre/Post deployment scripts: This works fine until different developers start to build their own different subfolder structures; if you are OCD-inclined like me this is going to grate on you eventually and hence you are going to want to move stuff around so that you have consistent folder structures for each schema and (if you have multiple databases) each project. Moreover new files get created with a filename of the object name + “.sql” and often people like to have an extra identifier in the filename to indicate the object type: The overall point is this – files and folders in your solution are going to change. Some version control systems (VCSs) don’t take kindly to files being moved around or renamed because they recognise the renamed/moved file simply as a new file and when they do that you lose the revision history which, to my mind, is one of the key benefits of using a VCS in the first place. On this project we have been using Team Foundation Server (TFS) and while it pains me to say it (as I am no great fan of TFS’s version control system) it has proved invaluable when dealing with the SSDT problems that I outlined above because it is integrated right into the Visual Studio IDE. Thus the advice from this blog post is: If you are using SSDT consider using an Visual-Studio-integrated VCS that can easily handle file renames and file moves I suspect that fans of other VCSs will counter by saying that their VCS weapon of choice can handle renames/file moves quite satisfactorily and if that’s the case…great…let me know about them in the comments. This blog post is not an attempt to make people use one particular VCS, only to make people aware of this issue that might rise when using SSDT. More to come in the coming few weeks! @jamiet

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• Which of these is pythonic? and Pythonic vs. Speed

  - by Kashyap Nadig

  Hi! I'm new to python and just wrote this module level function: def _interval(patt): """ Converts a string pattern of the form '1y 42d 14h56m' to a timedelta object. y - years (365 days), M - months (30 days), w - weeks, d - days, h - hours, m - minutes, s - seconds""" m = _re.findall(r'([+-]?\d*(?:\.\d+)?)([yMwdhms])', patt) args = {'weeks': 0.0, 'days': 0.0, 'hours': 0.0, 'minutes': 0.0, 'seconds': 0.0} for (n,q) in m: if q=='y': args['days'] += float(n)*365 elif q=='M': args['days'] += float(n)*30 elif q=='w': args['weeks'] += float(n) elif q=='d': args['days'] += float(n) elif q=='h': args['hours'] += float(n) elif q=='m': args['minutes'] += float(n) elif q=='s': args['seconds'] += float(n) return _dt.timedelta(**args) My issue is with the for loop here i.e the long if elif block, and was wondering if there is a more pythonic way of doing it. So I re-wrote the function as: def _interval2(patt): m = _re.findall(r'([+-]?\d*(?:\.\d+)?)([yMwdhms])', patt) args = {'weeks': 0.0, 'days': 0.0, 'hours': 0.0, 'minutes': 0.0, 'seconds': 0.0} argsmap = {'y': ('days', lambda x: float(x)*365), 'M': ('days', lambda x: float(x)*30), 'w': ('weeks', lambda x: float(x)), 'd': ('days', lambda x: float(x)), 'h': ('hours', lambda x: float(x)), 'm': ('minutes', lambda x: float(x)), 's': ('seconds', lambda x: float(x))} for (n,q) in m: args[argsmap[q][0]] += argsmap[q][1](n) return _dt.timedelta(**args) I tested the execution times of both the codes using timeit module and found that the second one took about 5-6 seconds longer (for the default number of repeats). So my question is: 1. Which code is considered more pythonic? 2. Is there still a more pythonic was of writing this function? 3. What about the trade-offs between pythonicity and other aspects (like speed in this case) of programming? p.s. I kinda have an OCD for elegant code. EDITED _interval2 after seeing this answer: argsmap = {'y': ('days', 365), 'M': ('days', 30), 'w': ('weeks', 1), 'd': ('days', 1), 'h': ('hours', 1), 'm': ('minutes', 1), 's': ('seconds', 1)} for (n,q) in m: args[argsmap[q][0]] += float(n)*argsmap[q][1]

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• Aren't Information Expert / Tell Don't Ask at odds with Single Responsibility Principle?

  - by moffdub

  It is probably just me, which is why I'm asking the question. Information Expert, Tell Don't Ask, and SRP are often mentioned together as best practices. But I think they are at odds. Here is what I'm talking about: Code that favors SRP but violates Tell Don't Ask, Info Expert: Customer bob = ...; // TransferObjectFactory has to use Customer's accessors to do its work, // violates Tell Don't Ask CustomerDTO dto = TransferObjectFactory.createFrom(bob); Code that favors Tell Don't Ask / Info Expert but violates SRP: Customer bob = ...; // Now Customer is doing more than just representing the domain concept of Customer, // violates SRP CustomerDTO dto = bob.toDTO(); If they are indeed at odds, that's a vindication of my OCD. Otherwise, please fill me in on how these practices can co-exist peacefully. Thank you. Edit: someone wants a definition of the terms - Information Expert: objects that have the data needed for the operation should host the operation Tell Don't Ask: don't ask objects for data in order to do work; tell the objects to do the work Single Responsibility Principle: each object should have a narrowly defined responsibility

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• Can ScalaCheck/Specs warnings safely be ignored when using SBT with ScalaTest?

  - by pdbartlett

  I have a simple FunSuite-based ScalaTest: package pdbartlett.hello_sbt import org.scalatest.FunSuite class SanityTest extends FunSuite { test("a simple test") { assert(true) } test("a very slightly more complicated test - purposely fails") { assert(42 === (6 * 9)) } } Which I'm running with the following SBT project config: import sbt._ class HelloSbtProject(info: ProjectInfo) extends DefaultProject(info) { // Dummy action, just to show config working OK. lazy val solveQ = task { println("42"); None } // Managed dependencies val scalatest = "org.scalatest" % "scalatest" % "1.0" % "test" } However, when I runsbt test I get the following warnings: ... [info] == test-compile == [info] Source analysis: 0 new/modified, 0 indirectly invalidated, 0 removed. [info] Compiling test sources... [info] Nothing to compile. [warn] Could not load superclass 'org.scalacheck.Properties' : java.lang.ClassNotFoundException: org.scalacheck.Properties [warn] Could not load superclass 'org.specs.Specification' : java.lang.ClassNotFoundException: org.specs.Specification [warn] Could not load superclass 'org.specs.Specification' : java.lang.ClassNotFoundException: org.specs.Specification [info] Post-analysis: 3 classes. [info] == test-compile == For the moment I'm assuming these are just "noise" (caused by the unified test interface?) and that I can safely ignore them. But it is slightly annoying to some inner OCD part of me (though not so annoying that I'm prepared to add dependencies for the other frameworks). Is this a correct assumption, or are there subtle errors in my test/config code? If it is safe to ignore, is there any other way to suppress these errors, or do people routinely include all three frameworks so they can pick and choose the best approach for different tests? TIA, Paul. (ADDED: scala v2.7.7 and sbt v0.7.4)

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• Is Steam for Mac effectively running as superuser?

  - by godDLL

  When you download the client it does not weigh too much, and seems to do very little. Inside the app bundle there is a script that—upon inspecting the environment and deciding you're not running Linux—launches the client, which downloads the full support environment and resources. For this to happen (all of this is saved inside the bundle, the app bundle gets updated in this process) Steam wants Universal Access for Assistive Devices, and your password. Cacheable resources, preferences (like keyboard shortcuts), support files (like game hardware requirement lookup tables) live inside the bundle, not in ~/Library/{Application Support|Preferences|Cache}; games' data get dumped into ~/Documents/Steam Content. I'd describe myself as a bit OCD (which really says a lot), and I wouldn't care that much still. I'd go comb this hairy mess and find out where stuff is, when and if I need to, even if it's in an unfamiliar place; that does not actually tick me off. Well, a little bit. What makes me concerned is the way Steam needs both Access for Assistive Devices, and my password to run. The former gives it the ability to talk very intimately with running apps and the underlying system; while the latter (admin account) could very well give it and it's publishers unrestricted access to all my software, hardware and data. With publishers like Rockstar using scene NOCD cracks to publish their games on Steam, I'm not so sure I'm OK with this. I'd like more games made available for the MacOS X and all the pretty machines that run it, but this arrangement does not seem very Mac-like to me. It looks like Valve is going around system security measures and best practices, foregoing sandboxing, code signing, relatively sane structured organization; all the things that would appeal to someone who's no fun at parties at all, and will die alone, in his long dead mother's basement… wait. Right. Anyway. Can we get some input on Steam for Mac security at the end-user machine, from someone who understands how Accessibility API works, whether games distributed on Steam can read and write outside the user homefolder, collect data from other running apps, or similar?

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