All of the emacs users on our development server are unable to do a bazaar commit to our development branch on launchpad. They receive this message:
bzr: ERROR: Cannot lock /.. /.bzr/checkout/dirstate: [Errno 13] Permission denied: u'/../.bzr/checkout/dirstate'
I've double-checked all of the permissions and everyone has their keys set up correctly. I'm using vim and have no problems.
Any other ideas?
Thanks, Jen
This error does not look like it has anything to do with Launchpad's server side.
The error means bzr is failing to acquire a filesystem lock for the "checkout" part of the tree. The "checkout" in bzr represents the checked-out source files and associated metadata. It's what makes it possible to run "bzr st", "bzr add" and similar commands.
Since you describe the problem as emacs-specific, it might be something wrong with the emacs mode you are using for driving bzr. Is that VC, or DVC?
Generally, VC does not do what you would expect, because it's designed for centralized version control systems such as RCS, SCCS, CVS and Subversion. Make sure to investigate the use DVC instead.
The way you phrase it, you suggest that all developers are working on the same branch on a shared development server. That's a pretty unusual way to use a distributed version control, you should check that the .bzr/checkout directory has the appropriate permissions. For you that would be something like rwxrwtr-x. Note the setgid bit on directory.
The best place to get such problems resolved is the #bazaar channel on irc.freenode.net. Diagnosing and solving such problems often requires a number of roundtrips, and IRC is a more appropriate medium than stackoverflow.
Look for a .lock file of some kind. Sometimes they don't get cleaned up after a crash and the resource stays locked. Maybe the Emacs plugin for bazaar created it and thats why vim doesn't care.
I'm with ddaa on this. It is almost certianly an issue with the emacs mode they are using to do their checkouts. Presumably they have no problem using the command-line interface to bzr, right?
The source code for the modes in usually found under the Emacs installation directory in either the lisp or site-lisp subdirectories. However, it is written in a special elisp language, so it is tough reading if you don't know elisp (or at least lisp in general). But if you post exactly what mode they are using, what version, and perhaps what version of emacs, there may be some folks reading who can enlighten you about known problems and whatnot.
Related
I'm using W7 64 bi , and just got an error from the github client app. It says:
failed to sync branch. you might need to open a shell and debug the state of this repo.
What do I do now ?
I know this will sound crazy, but try restarting your computer.
This happend to me yesterday; I was getting this error, and upon checking: \AppData\Local\GitHub\TheLog.txt
I found messages like:
AppData\Local\GitHub\PortableGit_ca477551eeb4aea0e4ae9fcd3358bd96720bb5c8\bin\sh.exe:
*** Couldn't reserve space for cygwin's heap, Win32 error 0
The problem comes around to GitHub for Windows updating itself (in particular the cygwin-ized PortableGit) in the background while I was using it. Ultimately, some cygwin dlls from the previous PortableGit dlls were still loaded in memory causing errors when trying to execute the new (updated) PortableGit commands.
Restarting cleared out all the previously loaded cygwin dlls.
You might have a more complex problem than my answer can solve, but -- for anyone else who comes across this question -- some basic solutions can be found in this video. In short, status.github.com, git status, and gitstatus are your friends. See what they tell you and then continue your sleuthing with that new information in mind. You can use these tools using Git Shell that comes with the Github Windows client.
I'll note that my own problem stemmed from trying to sync a file that was too large: I only found this by using the Git Shell, which gave me the error when I tried git sync. I'm currently looking for ways to remove the file in question in previous commits so I can sync my repo appropriately. The guide I am currently following can be found here, and if it seems to be taking me in the right direction (it was actually recommended in the Git Shell error message!)
I had this error before, and I fixed it by reinserting the credentials for my github account. Turns out that github logged me out for some reason
We have files that should be executable, and are happily executable in git, but then editing and committing the file from Eclipse on Windows results in the file mode being changed to remove executability.
This happens regardless of whether core.filemode is set to true or false.
Basically egit seems to be too naive for our purposes (breaking file permissions is the problem, but it also doesn't seem to support git-svn) so we're using msysgit instead - we have to manually refresh in Eclipse after switching branches etc, but that's a small enough sacrifice compared to it breaking our code.
There are recent fixes for the filemode problems post 1.2, e.g. use the nightly build.
Firstly, I'm not sure if this belongs here or programmers. Please move if it needs to be there.
I am mostly a hobbiest web developer, with a bit of freelance sidework. I program anywhere I can, from a laptop on the go to my home PC. I've pretty well settled on Net Beans as my IDE, and xampp for my test environment. My question is how do I best synchronize changes between my different PCs?
I started out FTPing changes to a "dev" area on my webserver, then FTPing them down to my other PC, but that's sort of a pain. Lately I have started using dropbox, which takes a lot of the pain out, but still isn't quite as seemless as I'd like.
Has anyone come up with a bulletproof way to easily ensure you're always opening up the latest version of your files across multiple PCs which aren't necessarily always (but sometimes are) on your home network?
Free is a necessity.
I personally use Subversion.
It integrates easily with Netbeans or Eclipse, and you say you've got a webserver, which I presume is Linux based? It's easy to set up in any Linux environment, though I think it can also be set up in a Windows environment.
Then you just run an update on your code when you want to get the latest version, do checkins when you like it, and you can always go back to earlier code (like if you tried a two day experiment that didn't work out and now want to delete it all and go back to what you had that was working).
Use some version control system. If you are new to this stuff Subversion would be probably the easiest to start with and it is very well intergrated with Netbeans.
You may set up repository on your own server or use some external service - there are a lot of them and almost everyone offers some free plan to start with. I'd be glad to give you some pointers if you like.
Learn to use a version control system.
www.github.com is free for open source projects, but must pay for private source repositories and also closed source projects, hurray.
http://unfuddle.com uses subversion, and is free for 200Mb of private source.
You may find some of the links in this thread useful.
A very simple and efficient way is to open an account on dropbox.com.
I disagree with a lot of the answers here (A lot are pretty old). Git/SVN is not a synchronization solution (nor a backup). It is just a version control system. (But if done correctly you can use git and a sync tool at the same time.)
By using git for synchronization you get the following side effects:
polluted git log: e.g. git commit -am 'synced files'... 'synced files again', 'synced from laptop', 'synced from desktop'
a substandard workflow: every time you leave your workstation or laptop you have to remember to git commit and push. This takes time and mental energy
Instead, I would recommend a solution that offers a continuous sync of your files to a central server. You can close your laptop within five seconds (maybe less) and your changes are propagated to a central server awaiting to sync to other devices when they come online. One priviso: you need to make sure you are not syncing folders like .git so a sync from your laptop .git for your project doesn't corrupt your .git on your desktop. Some options are:
Synology Cloudstation Drive - I can speak personally to this one. It excludes all "." files by default, and syncs at every file change. As soon as you save the file it is synced
NextCloud/OwnCloud - I now use Nextcloud, sync all computers, and make sure to exclude .git so that each git repo will track independent changes against origin BUT still be synced between devices.
Google Drive
Dropbox
You can set up a web-based source repository on something like http://www.github.com, and be able to access it from any computer.
Have been trying out Web2Py for a couple of days now and I decided it to be a keeper. But there is one thing that concerns me a lot and that might be a showstopper in the end. I need a nice development environment & setup I can trust and be productive with. Coming from the MS Visual Studio world I'm looking for something with good autocomplete / intellisense + functions for versioning and deployment.
I did some attempts to edit my code in Eclipse but it needs additional setup to run with autocomplete, and for debugging I dont know if it's possible. (Noticed there was a Django project template in Eclipse which is a bit tempting I must say.)
Wing Ide has a instruction on how to get web2py up and running and I am up to testing that one. Not free, but very cheap compared to much in the Windows world.
I also want a good versioning (hg) setup, and preferably a semi-automatic FTP-deployment-method.
What IDE do Web2Py developers use, and how do your setup look like?
A complete setup script for a project in a good IDE would be awesome! (Just like the installation is, one click to get it running 100%).
Pycharm looks good, perhaps that one can add web2py support http://youtrack.jetbrains.net/issue/PY-1648
Thanks a lot!
OS: Windows 7/Windows XP
IDE: NetBeans
Version control: TortoiseHg/NetBeans
Debugger: winpdb
Shell: IPython
Publish: WinSCP/PuTTY/TortoiseHg
Scripts
Once I create a new project in web2py I add a few scripts to my main app folder:
web2py\applications\myapp\DebugWinpdb.bat:
C:\Python25\Scripts\winpdb.bat ..\..\web2py.py -i 127.0.0.1 -p8000 -mypassword
web2py\applications\myapp\DebugShell.bat:
C:\Python25\Scripts\winpdb.bat ..\..\web2py.py -S myapp -M
web2py\applications\myapp\Shell.bat:
python ..\..\web2py.py -S myapp -M
IDE
As others have stated you need to do some extra stuff to get autocomplete/intellisense for web2py no matter what IDE you use.
For me NetBeans was a good compromise between does-everything-if-only-you-can-figure-out-how (Eclipse/PyDev) and does-the-basics-but-few-extras (PyScripter).
NetBeans Setup (Project Properties):
Python Category
Python Platform: Python 2.x (default is Jython)
Run Category
Main Module: web2py.py
Application Arguments: -i 127.0.0.1 -p 8000 -a mypassword
NetBeans Pros:
Tight Mercurial integration
Highlights which lines have been added, changed, or deleted in your source file as you edit it
Selective rollback of individual changes you've made since your last commit
One of the nicest visual diff viewers I have used
Python PEP8 style hints (fully customizable)
Name "foo" is not a valid class name according to your code style (CapitalizedWords)
Name "Bar" is not a valid function name according to your code style (lowercase_with_underscores)
Auto-format hotkey (corrects spacing around operators, etc)
Navigation within source file
semantically indexes current source file
organizes alphabetically by type (Class, method, attribute, etc)
makes even enormous style sheets manageable
NetBeans Cons:
Integrated Debugger doesn't work with web2py (that one really hurts)
Long startup time (but acceptably snappy for me once up and running)
Version Control
I use and highly recommend Mercurial for source control. As mentioned earlier, NetBeans has great support for Mercurial but there are some things I'd just rather do in TortoiseHg.
TortoiseHg Pros:
Shell overlay icons
Repository Explorer
view repos history with graphical display of branching/merging
one stop shop for Incoming, Outgoing, Push, Pull, Update, etc with button for Commit tool
Commit tool
Hunk Selection: cherry pick changes from within a file for more focused Commits
Add, Remove, Diff, Revert, Move, Remove, Forget
TortoiseHg Cons:
No easy way to drop directly into a command line
Bug that regularly prevents files from being removed during commit (waits indef for a lock to be released; running hg addremove from command line is a reliable workaround)
Publishing
I use a combination of WinSCP (for browsing), PuTTY (for terminal commands), and TortoiseHg (for push/pull of my repos) to work with my shared hosting account on Webfaction.
The first thing I do is set up public/private key encryption. If you are having trouble getting this set up between Windows and Linux, try these instructions from Andre Molnar. Short story is you need to generate your private key using ssh-keygen on Linux, copy it down to your Windows machine using WinSCP, then convert it for use with WinSCP and PuTTY.
Then add the following lines to your global mercurial.ini file:
[ui]
ssh = "C:\Program Files\TortoiseHg\TortoisePlink.exe" -ssh -2 -i "c:\path\to\your\privatekey.ppk"
Even if you have to connect to multiple servers, you need only copy your public key to each of the different servers. You'll also want to let WinSCP and PuTTY know where your private key is located, but those are fairly easy to figure out.
Try the new web2py admin interface in trunk. It has a web based mercurial interface and a google deploy interface.
In web2py you can edit applications/admin/models/0.py and set
TEXT_EDITOR = 'amy'
And you will get the web based Amy editor with autocompletion. It is not default because because it does not work with some browsers and because autocompletion is not as good as eclipse. It may work for you.
You can use web2py with Eclipse but you need a minor workaround to let Eclipse know about the web2py environment. It is explained here.
I know other users have used other IDEs with web2py, for example WinIDE and pyCharm. I suggest you ask on the web2py mailing list where people are very helpful.
I'm pretty sure that the 'one-click setup script' to do all that you are looking for does not exist (at the moment). But don't be put off - you can achieve a nice development environment to suit your needs and there are lots of choices.
Although I develop on Windows, I like the setup I have as it's more of a 'Unixy' way of thinking whereby I have a number of tools each doing a specific task. Once you get a workflow setup you can be very productive - although I realise it may look a bit confusing initially coming from a Visual Studio world.
Below I outline what I've settled on. I'm sure others will have their own recommendations. Pick the options you like best.
(There should be hyperlinks to useful software below but I don't have enough reputation to include more than 1 link...)
For developing on Windows I'm enjoying using Pyscripter. It's free, fast (compared to Aptana / Eclipse / Netbeans etc) and has some nice features (dark theme, integrated python console and code explorer to name a few).
To get code completion / intellisense to work for web2py you need to add some code to your model / controller files because of the way web2py works. There are some instructions in this discussion topic on the web2py group.
web2py has a great error ticketing system built in (see the web2py book chapter 3). For more comprehensive debugging, pydb seems to be the way to go. Just put the code below as a breakpoint:
import pydb
pydb.debugger()
and it'll take you to the debugger.
I use TortoiseHg for Mercurial integration and it works wonderfully. Combine that with winscp and you can deploy easily.
Caveats: I work in OS X, and do most of my coding in BBEdit.
That said, I've used both Wing and Komodo IDE for web2py debugging, and they've both worked quite well for me. I haven't tried NetBeans in a while now; when I did the Python support seemed a little rough around the edges. And I've never had the time or patience to come up to speed with Eclipse; it's filed in my mental file cabinet with Emacs, no doubt unjustly to Eclipse and/or Emacs.
(And I'll echo mdipierro's recommendation to try the web2py mailing list; it's really indispensable--one of web2py's strongest points.)
Have you considered using fewer tools? Both Python and web2py don't require a whole lot of code to get a lot accomplished. web2py only adds 10 or 15 new function calls (besides the HTML helpers and validators). You might find that Eclipse and other IDEs actually get in the way. Setting up new apps in web2py is simple through the admin system. Since the new app scaffolding copies the welcome app, you can customize new app setup by editing the welcome app. With Mercurial (or Git, Subversion or Bazaar) you can set up a server on your machine or with one of the public sites and either push or pull updates to your production server. Keep it simple, I say.
we are using web2py framework for all our web application needs and this is our setup :
OS - Ubuntu up-to-date
IDE - Aptana Studio 3.0 with pyDev
Version Control - git
Python 2.7
Browser for developing phase : Chrome
I've found the Wing IDE debugger to be very useful. It's a powerful debugger across the board, and also can be configured to do remote debugging, which is really important when you are running web2py on a no-GUI remote machine (e.g. at Amazon Web Services).
I am setting up a project that will be shared among several programmers at my organization. We are using git--to which I am a newcomer. The project directory includes symbolic links to documentation directories that should not be under version control. I want to maintain the symlinks under version control as symlinks, rather than having them dereferenced and all of the content of the symlinked directory placed under version control.
I find that the git command line tool behave the way I want: git add -A. However if I try to use the Eclipse version of git, eGit, to add all the currently unversioned files, using Team->Track on the project context menu, eGit wants to add every file in the symlinked directories. Is there a way to tell eGit that, no, these are really symlinks, and should not be dereferenced?
Our problem was discussed in this: Eclipse Community Forums Thread
It looks like currently the Linux native lstat support is not too easy to make portable. The Least Common Denominator paradigm that they have for programming Eclipse in Java make it harder to do Linux or Mac native stuff. (read: *cough* Windows doesn't support symlinks *cough*).
The good news is:
It seems possible, but they'd need to code it in a way that complies to their 'Write Once Test Everywhere' programming standards. I feel that it's important to have some native stat and lstat support on Linux when using EGit because of this problem, as well as Eclipse bug #346079.
Simply having EGit installed causes slowdowns & IDE freezes when doing a Git Refresh :-(
The bad news is:
These two bugs are stopping me from using EGit for the majority of my git commands. The user experience makes EGit unusable for me. It would be really nice to be able to use EGit within Eclipse so that Mylyn User Stories & Tasks could be tied to feature branches automatically. It would also be great to have the automatic commit message template features. This would make putting the current task & status in the commit message a breeze.
This is bugging me almost enough that I'm ready to see if it's possible to make some scripts to query Eclipse / Mylyn for the current commit message template output, and do the git commit from the commandline using this. I'm not sure how automatic per-user-story feature branch creation would work though.
Until these problems get fixed, I'm sure a lot of EGit users will not be happy :-(
We suffered from this problem cluttering up the commit screen no end, and occasionally causing someone to forget to include a file they had created.
The solution we came up with was to manually edit the .gitignore files to include the paths where the linked files would appear when the symlinks were dereferenced:
/ProjectHomeFolder/.gitignore
Since we were working in the Play Framework we also edited the following ignores:
/ProjectHomeFolder/conf/.gitignore
/ProjectHomeFolder/public/.gitignore
We simply added
/ModuleName for each of the modules that were symlinked and now egit ignores them properly, for completeness here is the full contents of my root .gitignore file, that sits in the root directory of the project:
/.project
/.classpath
/.gitignore
/eclipse
/tmp
/crud
/.git
/.settings
/modules
/conf
/betterlogs-1.0
/chronostamp-0.1
/logisimayml-1.5
/betterlogs-1.0
/sass-1.1
/deadbolt-1.4.2
/jquery-1.0
/log4play-0.5
/messages-1.1.1
/navigation-0.1
/jqueryui-1.0
/scaffold-0.1
/table-1.2
/tabularasa-0.2