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• How to add a variable into a grep command

  - by twigg

  I'm running the following grep command var=`grep -n "keyword" /var/www/test/testfile.txt` This work just as expected but I need to insert the file name dynamically from a loop like so: var=`grep -n "keyword" /var/www/test/`basename ${hd[$i]}`.txt` But obviously the use of ` brakes this with a unexpected EOF while looking for matching ``' and unexpected end of file Any ideas of away around this?

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• Bash & 'su' script giving an error "standard in must be a tty".

  - by sHz

  Folks, I'm having an issue with a bash script which runs a particular command as a different user. The background: Running on a Linux box (CentOS), the script is quite simple, its starting the hudson-ci application. declare -r HOME=/home/hudson declare -r RUNAS=hudson declare -r HOME=/home/hudson declare -r LOG=hudson.log declare -r PID=hudson.pid declare -r BINARY=hudson.war su - ${RUNAS} -c "nohup java -jar ${HOME}/${BINARY} >> ${HOME}/${LOG} 2>&1; echo $! > ${HOME}/${PID}" & This is the bridged version of the script, when run, the script exists with "standard in must be a tty". Any ideas on what I could be doing wrong? I've tried Dr Google and all the advise hasn't helped thus far.

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• How do I delete a folder named "-p" from bash?

  - by fmark

  How do I delete a file named -p in bash? Trying rm "-p" complains that -p is not a valid argument.

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• Given a html file, how to find the first 4 numbers?

  - by user38053

  Given a html file, how to find the first 4 numbers?

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• The plugin of munin is always timed out

  - by haoX

  I want to use munin to make a graph of ttyACM0 in Linux, but munin can not create the graph. I found some information in "munin-node.log". it shows that "Service 'temperature' timed out". So I changed timeout to 60 or 120 in /munin/plugin-conf.d/munin-node, but it does not work. It's also timed out. Here is part of my code: if [ "$1" = "config" ]; then echo 'graph_title Temperature of board' echo 'graph_args --base 1000 -l 0' echo 'graph_vlabel temperature(°C)' echo 'graph_category temperature' echo 'graph_scale no' echo 'graph_info This graph shows the temperature of board' for i in 1 2 3 4 5; do case $i in 1) TYPE="Under PCB" ;; 2) TYPE="HDD" ;; 3) TYPE="PHY" ;; 4) TYPE="CPU" ;; 5) TYPE="Ambience" ;; esac name=$(clean_name $TYPE) if [ "$TYPE" != "NA" ]; then echo "temp_$name.label $TYPE"; fi done exit 0 fi for i in 1 2 3 4 5; do case $i in 1) TYPE="Under PCB" VALUE=$(head -1 /dev/ttyACM0 | awk '{print $1}') ;; 2) TYPE="HDD" VALUE=$(head -1 /dev/ttyACM0 | awk '{print $2}') ;; 3) TYPE="PHY" VALUE=$(head -1 /dev/ttyACM0 | awk '{print $3}') ;; 4) TYPE="CPU" VALUE=$(head -1 /dev/ttyACM0 | awk '{print $4}') ;; 5) TYPE="Ambience" VALUE=$(head -1 /dev/ttyACM0 | awk '{print $5}') ;; esac name=$(clean_name $TYPE) if [ "$TYPE" != "NA" ]; then echo "temp_$name.value $VALUE" fi

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• How to print new line character with echo?

  - by Summer_More_More_Tea

  I dump a string with hexdump like this 2031 3334 2e30 0a32 2032 3331 302e 000a. It is clear that 0x0a is new line character, however, when I try to echo this string out, I always got 1 430.2 2 13.0 -- the new line is replaced with a space, even I use the -e flag. What may be the problem? Does the tailing \0 ruin the output? Is there any alternatives to print 0x0a a new line? Thanks and Best regards.

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• Creating a link to name changing directory

  - by groove1534

  I have an Ubuntu 12.04 installed using wubi + Win7. I'm trying to create a link to "my documents" directory which located in my C drive: C:\Users\Myuser\My Documents\ Since the Ubuntu is installed in D:\, which is the "host", my C drive is accessible via /media/some_changing_hex. This hex get changed each time I restart my machine. So I need, somehow, to create a link that uses regex OR a link that somehow gets the the first (in this case - only) subdirectory in /media (something like all_subdirectories[0]). So how do I do that?

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• Oracle VM Virtualbox 4.0 extension packs

  - by wim.coekaerts

  Some people have asked what this new extension pack is in Oracle VM Virtualbox 4.0 and how it's different from 3.2 and earlier releases. The extension pack is a restructuring of how Oracle VM VirtualBox is installed. Please take a look at http://virtualbox.org and read up on what the product install looked like prior to 4.0, you'll see the following : There were 2 versions to download : - Oracle VM VirtualBox (open source edition) OSE - download of the source tarball with a GPL license + compile needed to run. - Oracle VM VirtualBox PUEL (personal use/eval license) - download of an installable binary with a number of additional non-gpl license drivers, usb2, sata, pxe boot for e1000, vrdp server etc., all built in to the install. This contained the OSE edition + additional drivers with the installer. Customers could purchase an enterprise software license for the latter version. To make it easier to build and release additional drivers, they have been separated out and are now installed through an "extension pack" starting with Oracle VirtualBox version 4. This extension pack is still licensed the same way as in every prior version, via a PUEL license or with the ability to purchase a commercial license. It is now also possible for other companies or users that want to add extensions to do so by creating a similar extension pack -- and there's no need to do a new release of the entire product to do so. So it's a more flexible structure for installing VirtualBox and drivers and allows for more modular additions. The source code of Oracle VM Virtualbox is, of course, still available just like in 3.x, for 4.0. Like 3.x, not for the additional drivers which are now in the extension pack.

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• C# ambiguity in Func + extension methods + lambdas

  - by Hobbes

  I've been trying to make my way through this article: http://blogs.msdn.com/wesdyer/archive/2008/01/11/the-marvels-of-monads.aspx ... And something on page 1 made me uncomfortable. In particular, I was trying to wrap my head around the Compose<() function, and I wrote an example for myself. Consider the following two Func's: Func<double, double> addTenth = x => x + 0.10; Func<double, string> toPercentString = x => (x * 100.0).ToString() + "%"; No problem! It's easy to understand what these two do. Now, following the example from the article, you can write a generic extension method to compose these functions, like so: public static class ExtensionMethods { public static Func<TInput, TLastOutput> Compose<TInput, TFirstOutput, TLastOutput>( this Func<TFirstOutput, TLastOutput> toPercentString, Func<TInput, TFirstOutput> addTenth) { return input => toPercentString(addTenth(input)); } } Fine. So now you can say: string x = toPercentString.Compose<double, double, string>(addTenth)(0.4); And you get the string "50%" So far, so good. But there's something ambiguous here. Let's say you write another extension method, so now you have two functions: public static class ExtensionMethods { public static Func<TInput, TLastOutput> Compose<TInput, TFirstOutput, TLastOutput>( this Func<TFirstOutput, TLastOutput> toPercentString, Func<TInput, TFirstOutput> addTenth) { return input => toPercentString(addTenth(input)); } public static Func<double, string> Compose<TInput, TFirstOutput, TLastOutput>(this Func<double, string> toPercentString, Func<double, double> addTenth) { return input => toPercentString(addTenth(input + 99999)); } } Herein is the ambiguity. Don't these two function have overlapping signatures? Yes. Does this even compile? Yes. Which one get's called? The second one (which clearly gives you the "wrong" result) gets called. If you comment out either function, it still compiles, but you get different results. It seems like nitpicking, but there's something that deeply offends my sensibilities here, and I can't put my finger on it. Does it have to do with extension methods? Does it have to do with lambdas? Or does it have to do with how Func< allows you to parameterize the return type? I'm not sure. I'm guessing that this is all addressed somewhere in the spec, but I don't even know what to Google to find this. Help!

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• Unwanted Shell expansion when assigning the output of a shell command to a variable

  - by Rob Goodwin

  I am exporting a portion of a local prototypte svn repository to import into a different repo. We have a number of svn properties set throughout the repo so I figured I would write a script to list the file elements and their corresponding properties. How hard can that be right. So I write started writing a bash script that would assign the output of the svn proplist -v to a variable so I could check if the specified file had any properties. #!/bin/bash svn proplist -v $1 o=$(svn proplist -v "$1") echo $o now this works fine and echos the output of the svn proplist command. But if the proplist command returns something like svn:ignore : * build it performs a shell expansion on the * and inserts the entire directory listing prior to the build property value. So if the directory had a.txt, b.txt and build files/dirs in it, the output would look like. svn:ignore a.txt b.txt build I figure I need to somehow escape the output or something to keep the expansion from happening, but have yet to find something that works. There are other ways to do this, but I hate when I cannot figure something out. and I have to admin, I think this one beat me ( well given the time I can spend on it )

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• Writing PHP extension - Unable to load dynamic library

  - by Luke

  I'm writing a PHP extension similar to V8JS. The goal, like V8JS, is to embed the V8 engine into PHP so I can execute sandboxed JavaScript code in PHP. (The implementation is different.) The extension compiles fine, but when I attempt to run it I get: PHP Warning: PHP Startup: Unable to load dynamic library '/phpdev/lib/php/extensions/debug-zts-20090626/v8php.so' - dlopen(/phpdev/lib/php/extensions/debug-zts-20090626/v8php.so, 9): Symbol not found: __ZN2v88internal8Snapshot13context_size_E Referenced from: /phpdev/lib/php/extensions/debug-zts-20090626/v8php.so Expected in: flat namespace PHP is compiled with the prefix /phpdev (with debug and maintainer flags). v8 is compiled in /v8/ with gyp with the commands make dependencies and make x64 which produced /v8/out/x64.release and /v8/out/x64.debug. I soft-linked the header files from /v8/include to /phpdev/include and libv8_base.a from /v8/out/x64.release/libv8_base.a to /phpdev/lib/libv8.a. This is my config.m4 file: PHP_ARG_ENABLE(v8php, [V8PHP], [--enable-v8php Include V8 JavaScript Engine]) if test $PHP_V8PHP != "no"; then SEARCH_PATH="$prefix /usr/local /usr" SEARCH_FOR="/include/v8.h" if test -r $PHP_V8PHP/$SEARCH_FOR; then V8_DIR=$PHP_V8PHP else AC_MSG_CHECKING([for V8 files in default path]) for i in $SEARCH_PATH ; do if test -r $i/$SEARCH_FOR; then V8_DIR=$i AC_MSG_RESULT(found in $i) fi done fi if test -z "$V8_DIR"; then AC_MSG_RESULT([not found]) AC_MSG_ERROR([Unable to locate V8]) fi PHP_ADD_INCLUDE($V8_DIR/include) PHP_SUBST(V8PHP_SHARED_LIBADD) PHP_ADD_LIBRARY_WITH_PATH(v8, $V8_DIR/$PHP_LIBDIR, V8PHP_SHARED_LIBADD) PHP_REQUIRE_CXX() PHP_NEW_EXTENSION(v8php, v8php.cc v8_class.cc, $ext_shared) fi What am I doing wrong?

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• Updating a Safari Extension?

  - by Ricky Romero

  Hi there, I'm writing a simple Safari Extension, and I'm trying to figure out how to get the update mechanism working. Apple's documentation here is delightfully vague: http://developer.apple.com/safari/library/documentation/Tools/Conceptual/SafariExtensionGuide/UpdatingExtensions/UpdatingExtensions.html And here's my manifest, based on that documentation: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>Extension Updates</key> <array> <dict> <key>CFBundleIdentifier</key> <string>net.rickyromero.safari.shutup</string> <key>Team Identifier</key> <string>TMM5P68287</string> <key>CFBundleVersion</key> <string>1</string> <key>CFBundleShortVersionString</key> <string>1.0</string> <key>URL</key> <string>http://rickyromero.net/misc/SafariExtensions/ShutUp.safariextz</string> </dict> </array> </dict> </plist> I don't know where to get "YourCertifcateID," for example. And when I increment the values for CFBundleVersion and CFBundleShortVersionString, it doesn't trigger an update. I know Safari is hitting my manifest though, because I'm watching HTTP traffic. Thoroughly stumped. Any ideas, guys?

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• Pydev and Django: Shell not finding certain modules?

  - by Rosarch

  I am developing a Django project with PyDev in Eclipse. For a while, PyDev's Django Shell worked great. Now, it doesn't: >>> import sys; print('%s %s' % (sys.executable or sys.platform, sys.version)) C:\Python26\python.exe 2.6.4 (r264:75708, Oct 26 2009, 08:23:19) [MSC v.1500 32 bit (Intel)] >>> >>> from django.core import management;import mysite.settings as settings;management.setup_environ(settings) Traceback (most recent call last): File "<console>", line 1, in <module> ImportError: No module named mysite.settings >>> The dev server runs just fine. What could I be doing wrong? The models module is also conspicuously absent: >>> import mysite.myapp.models Traceback (most recent call last): File "<console>", line 1, in <module> ImportError: No module named mysite.myapp.models On the normal command line, outside of PyDev, the shell works fine. Why could this be happening?

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• Trying to build the basic python extension example fails (windows)

  - by Alexandros

  Hello, I have Python 2.6 and Visual Studio 2008 running on a Win7 x64 machine. When I try to build the basic python extension example in c "example_nt" as found in the python 2.6 sources distribution, it fails: python setup.py build And this results in: running build running build_ext building 'aspell' extension Traceback (most recent call last): File "setup.py", line 7, in <module> ext_modules = [module1]) File "C:\Python26\lib\distutils\core.py", line 152, in setup dist.run_commands() File "C:\Python26\lib\distutils\dist.py", line 975, in run_commands self.run_command(cmd) File "C:\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "C:\Python26\lib\distutils\command\build.py", line 134, in run self.run_command(cmd_name) File "C:\Python26\lib\distutils\cmd.py", line 333, in run_command self.distribution.run_command(command) File "C:\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "C:\Python26\lib\distutils\command\build_ext.py", line 343, in run self.build_extensions() File "C:\Python26\lib\distutils\command\build_ext.py", line 469, in build_extensions self.build_extension(ext) File "C:\Python26\lib\distutils\command\build_ext.py", line 534, in build_extension depends=ext.depends) File "C:\Python26\lib\distutils\msvc9compiler.py", line 448, in compile self.initialize() File "C:\Python26\lib\distutils\msvc9compiler.py", line 358, in initialize vc_env = query_vcvarsall(VERSION, plat_spec) File "C:\Python26\lib\distutils\msvc9compiler.py", line 274, in query_vcvarsall raise ValueError(str(list(result.keys()))) ValueError: [u'path'] What can I do to fix this? Any help will be appreciated

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• write to fifo/pipe from shell, with timeout

  - by Tim

  I have a pair of shell programs that talk over a named pipe. The reader creates the pipe when it starts, and removes it when it exits. Sometimes, the writer will attempt to write to the pipe between the time that the reader stops reading and the time that it removes the pipe. reader: while condition; do read data <$PIPE; do_stuff; done writer: echo $data >>$PIPE reader: rm $PIPE when this happens, the writer will hang forever trying to open the pipe for writing. Is there a clean way to give it a timeout, so that it won't stay hung until killed manually? I know I can do #!/bin/sh # timed_write <timeout> <file> <args> # like "echo <args> >> <file>" with a timeout TIMEOUT=$1 shift; FILENAME=$1 shift; PID=$$ (X=0; # don't do "sleep $TIMEOUT", the "kill %1" doesn't kill the sleep while [ "$X" -lt "$TIMEOUT" ]; do sleep 1; X=$(expr $X + 1); done; kill $PID) & echo "$@" >>$FILENAME kill %1 but this is kind of icky. Is there a shell builtin or command to do this more cleanly (without breaking out the C compiler)?

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• Loading Jscript files into Firefox extension

  - by colon3l

  Hi ! Let's get directly to the problem : I'm actually doing a firefox extension in which i would like to implement the jWebsocket API in order to build a small chat. I got my main script file, named test.js, and the jWebsocket lib into a js folder. Just for you to know, this is my first firefox extension ever. So in my XUL file I got this (for the script part only of course, the interface code is not shown) : <overlay id="test-overlay" xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"> <script type="application/x-javascript" src="chrome://test/content/test.js" /> <script type="application/x-javascript" src="chrome://test/content/js/jwebsocket.js" /> jwebsocket.js being the file I need to call according to jWebsocket website. In my main script file test.js I start with : if (jws.browserSupportsWebSockets()) { jWebSocketClient = new jws.jWebSocketJSONClient(); } else { var lMsg = jws.MSG_WS_NOT_SUPPORTED; alert(lMsg); } jws being the namespace created into the jwebsocket.js file. Of course I've got the required stand-alone server running in background, and working. So from what I understood looking on various websites, is that if a js file is loaded into the javascript allocated memory space (with the tag), all namespace/function should be available between each file. But this was mostly for HTML-oriented issues, so I'm not sure if it applies to XUL/Firefox environment. But the script keep failing at the first jws call. Any ideas on what goes wrong here ? I'm stuck for 2 days now :/

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• Controlling shell command line wildcard expansion in C or C++

  - by Adrian McCarthy

  I'm writing a program, foo, in C++. It's typically invoked on the command line like this: foo *.txt My main() receives the arguments in the normal way. On many systems, argv[1] is literally *.txt, and I have to call system routines to do the wildcard expansion. On Unix systems, however, the shell expands the wildcard before invoking my program, and all of the matching filenames will be in argv. Suppose I wanted to add a switch to foo that causes it to recurse into subdirectories. foo -a *.txt would process all text files in the current directory and all of its subdirectories. I don't see how this is done, since, by the time my program gets a chance to see the -a, then shell has already done the expansion and the user's *.txt input is lost. Yet there are common Unix programs that work this way. How do they do it? In Unix land, how can I control the wildcard expansion? (Recursing through subdirectories is just one example. Ideally, I'm trying to understand the general solution to controlling the wildcard expansion.)

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• FF extension: saving a value in preferences and retrieving in the js file

  - by encryptor

  I am making an extension which should take a link as the user input only once. Then the entire extension keeps using that link on various functions in the JS file. When the user changes it, the value accessed by the js file also changes accordingly. I am using the following but it does not work for me var pref_manager = Components.classes["@mozilla.org/preferencesservice;1"].getService(Components.interfaces.nsIPrefService) function setInstance(){ if (pref_manager.prefHasUserValue("myvar")) { instance = pref_manager.getString("myvar"); alert(instance); } if(instance == null){ instance = prompt("Please enter webcenter host and port"); // Setting the value pref_manager.setString("myvar", instance); } } instance is the global variable in which i take the user input. The alert (instance) does not show up, which means there is some problem by the way i am saving the pref or extracting it. Can someone please help me with this. I have never worked with preferences before. so even if there are minor problems i might not be able to figure out.

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• Sourcing a shell script, while running with sudo

  - by WishCow

  I would like to write a shell script that sets up a mercurial repository, and allow all users in the group "developers" to execute this script. The script is owned by the user "hg", and works fine when ran. The problem comes when I try to run it with another user, using sudo, the execution halts with a "permission denied" error, when it tries to source another file. The script file in question: create_repo.sh #!/bin/bash source colors.sh REPOROOT="/srv/repository/mercurial/" ... rest of the script .... Permissions of create_repo.sh, and colors.sh: -rwxr--r-- 1 hg hg 551 2011-01-07 10:20 colors.sh -rwxr--r-- 1 hg hg 1137 2011-01-07 11:08 create_repo.sh Sudoers setup: %developer ALL = (hg) NOPASSWD: /home/hg/scripts/create_repo.sh What I'm trying to run: user@nebu:~$ id uid=1000(user) gid=1000(user) groups=4(adm),20(dialout),24(cdrom),46(plugdev),105(lpadmin),113(sambashare),116(admin),1000(user),1001(developer) user@nebu:~$ sudo -l Matching Defaults entries for user on this host: env_reset User user may run the following commands on this host: (ALL) ALL (hg) NOPASSWD: /home/hg/scripts/create_repo.sh user@nebu:~$ sudo -u hg /home/hg/scripts/create_repo.sh /home/hg/scripts/create_repo.sh: line 3: colors.sh: Permission denied So the script is executed, but halts when it tries to include the other script. I have also tried using: user@nebu:~$ sudo -u hg /bin/bash /home/hg/scripts/create_repo.sh Which gives the same result. What is the correct way to include another shell script, if the script may be ran with a different user, through sudo?

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• Chrome extension sendRequest from async callback not working?

  - by Eugene

  Can't figure out what's wrong. onRequest not triggered on call from async callback method, the same request from content script works. The sample code below. background.js ============= ... makeAsyncRequest(); ... chrome.extension.onRequest.addListener(function(request, sender, sendResponse) { switch (request.id) { case "from_content_script": // This works console.log("from_content_script"); sendResponse({}); // clean up break; case "from_async": // Not working! console.log("from_async"); sendResponse({}); // clean up break; } }); methods.js ========== makeAsyncRequest = function() { ... var xhr = new XMLHttpRequest(); xhr.onreadystatechange = function() { if (xhr.readyState == 4) { ... // It works console.log("makeAsyncRequest callback"); chrome.extension.sendRequest({id: "from_async"}, function(response) { }); } } ... }; UPDATE: manifest configuration file. Don't no what's wrong here. { "name": "TestExt", "version": "0.0.1", "icons": { "48": "img/icon-48-green.gif" }, "description": "write it later", "background_page": "background.html", "options_page": "options.html", "browser_action": { "default_title": "TestExt", "default_icon": "img/icon-48-green.gif" }, "permissions": [ "tabs", "http://*/*", "https://*/*", "file://*/*", "webNavigation" ] }

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• Shell Script Variable Quoting Problem

  - by apinstein

  I have an sh script that contains the line $PHP_COMMAND -r 'echo get_include_path();' I can not edit this script, but I need the eventual command line to be (equivalent to) php -d include_path='/path/with spaces/dir' -r 'echo get_include_path();' How can I achieve this? Below is a script that demonstrates the problem. #!/bin/sh # shell script quoting problem demonstration # I need to be able to set a shell variable with a command with # some options, like so PHP_COMMAND="php -d 'include_path=/path/with spaces/dir'" # then use PHP_COMMAND to run something in another script, like this: $PHP_COMMAND -r 'echo get_include_path();' # the above fails when executed. However, if you copy/paste the output # from this line and run it in the CLI, it works! echo "$PHP_COMMAND -r 'echo get_include_path();'" php -d include_path='/path/with spaces/dir' -r 'echo get_include_path();' # what's going on? # this is also interesting echo "\n--------------------" # this works great, but only works if include_path doesn't need quoting PHP_COMMAND="php -d include_path=/path/to/dir" echo "$PHP_COMMAND -r 'echo get_include_path();'" $PHP_COMMAND -r 'echo get_include_path();' echo "\n--------------------" # this one doesn't when run in the sh script, but again if you copy/paste # the output it does work as expected. PHP_COMMAND="php -d 'include_path=/path/to/dir'" echo "$PHP_COMMAND -r 'echo get_include_path();'" $PHP_COMMAND -r 'echo get_include_path();' Script also available online: http://gist.github.com/276500

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• Why do I see the weird backspace behaviour on my shell sometimes?

  - by Lazer

  I use bash shell and sometimes all of a sudded, my Backspace key stops working (when this happens Ctrl + Backspace still works fine) I am not sure why this happens, but it also carries over to any vim sessions that I use from the shell. To my surprise, getting a fresh shell does not help, and the problem seems to go away as abruptly as it started. This is what the typed characters look like, each Backspace keypress is shown by a ^? on the shell $ cat filem^?namr^?e Does anybody have a clue what might be happening? How can I restore the normal behaviour?

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• Using Private Extension Galleries in Visual Studio 2012

  - by Jakob Ehn

  Note: The installer and the complete source code is available over at CodePlex at the following location: http://inmetavsgallery.codeplex.com   Extensions and addins are everywhere in the Visual Studio ALM ecosystem! Microsoft releases new cool features in the form of extensions and the list of 3rd party extensions that plug into Visual Studio just keeps growing. One of the nice things about the VSIX extensions is how they are deployed. Microsoft hosts a public Visual Studio Gallery where you can upload extensions and make them available to the rest of the community. Visual Studio checks for updates to the installed extensions when you start Visual Studio, and installing/updating the extensions is fast since it is only a matter of extracting the files within the VSIX package to the local extension folder. But for custom, enterprise-specific extensions, you don’t want to publish them online to the whole world, but you still want an easy way to distribute them to your developers and partners. This is where Private Extension Galleries come into play. In Visual Studio 2012, it is now possible to add custom extensions galleries that can point to any URL, as long as that URL returns the expected content of course (see below).Registering a new gallery in Visual Studio is easy, but there is very little documentation on how to actually host the gallery. Visual Studio galleries uses Atom Feed XML as the protocol for delivering new and updated versions of the extensions. This MSDN page describes how to create a static XML file that returns the information about your extensions. This approach works, but require manual updates of that file every time you want to deploy an update of the extension. Wouldn’t it be nice with a web service that takes care of this for you, that just lets you drop a new version of your VSIX file and have it automatically detect the new version and produce the correct Atom Feed XML? Well search no more, this is exactly what the Inmeta Visual Studio Gallery Service does for you :-) Here you can see that in addition to the standard Online galleries there is an Inmeta Gallery that contains two extensions (our WIX templates and our custom TFS Checkin Policies). These can be installed/updated i the same way as extensions from the public Visual Studio Gallery. Installing the Service Download the installler (Inmeta.VSGalleryService.Install.msi) for the service and run it. The installation is straight forward, just select web site, application pool and (optional) a virtual directory where you want to install the service.   Note: If you want to run it in the web site root, just leave the application name blank Press Next and finish the installer. Open web.config in a text editor and locate the the <applicationSettings> element Edit the following setting values: FeedTitle This is the name that is shown if you browse to the service using a browser. Not used by Visual Studio BaseURI When Visual Studio downloads the extension, it will be given this URI + the name of the extension that you selected. This value should be on the following format: http://SERVER/[VDIR]/gallery/extension/ VSIXAbsolutePath This is the path where you will deploy your extensions. This can be a local folder or a remote share. You just need to make sure that the application pool identity account has read permissions in this folder Save web.config to finish the installation Open a browser and enter the URL to the service. It should show an empty Feed page:   Adding the Private Gallery in Visual Studio 2012 Now you need to add the gallery in Visual Studio. This is very easy and is done as follows: Go to Tools –> Options and select Environment –> Extensions and Updates Press Add to add a new gallery Enter a descriptive name, and add the URL that points to the web site/virtual directory where you installed the service in the previous step   Press OK to save the settings. Deploying an Extension This one is easy: Just drop the file in the designated folder! :-)  If it is a new version of an existing extension, the developers will be notified in the same way as for extensions from the public Visual Studio gallery: I hope that you will find this sever useful, please contact me if you have questions or suggestions for improvements!

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• Debugging XSLT with extension objects in Visual Studio 2010

  - by Alex Ciminian

  I'm currently working on a project that involves a lot of XSLT transformations and I really need a debugger (I have XSLTs that are 1000+ lines long and I didn't write them :-). The project is written in C# and makes use of extension objects: xslArg.AddExtensionObject("urn:<obj>", new <Obj>()); From my knowledge, in this situation Visual Studio is the only tool that can help me debug the transformations step-by-step. The static debugger is no use because of the extension objects (it throws an error when it reaches elements that reference their namespace). Fortunately, I've found this thread which gave me a starting point (at least I know it can be done). After searching MSDN, I found the criteria that makes stepping into the transform possible. They are listed here. In short: the XML and the XSLT must be loaded via a class that has the IXmlLineInfo interface (XmlReader & co.) the XML resolver used in the XSLTCompiledTransform constructor is file-based (XmlUriResolver should work). the stylesheet should be on the local machine or on the intranet (?) From what I can tell, I fit all these criteria, but it still doesn't work. The relevant code samples are posted below: // [...] xslTransform = new XslCompiledTransform(true); xslTransform.Load(XmlReader.Create(new StringReader(contents)), null, new BaseUriXmlResolver(xslLocalPath)); // [...] // I already had the xml loaded in an xmlDocument // so I have to convert to an XmlReader XmlTextReader r = new XmlTextReader(new StringReader(xmlDoc.OuterXml)); XsltArgumentList xslArg = new XsltArgumentList(); xslArg.AddExtensionObject("urn:[...]", new [...]()); xslTransform.Transform(r, xslArg, context.Response.Output); I really don't get what I'm doing wrong. I've checked the interfaces on both XmlReader objects and they implement the required one. Also, BaseUriXmlResolver inherits from XmlUriResolver and the stylesheet is stored locally. The screenshot below is what I get when stepping into the Transform function. First I can see the stylesheet code after stepping through the parameters (on template-match), I get this: If anyone has any idea why it doesn't work or has an alternative way of getting it to work I'd be much obliged :). Thanks, Alex

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• VS2010 Extension like Smart Paster?

  - by Eric J.

  Alex Papadimoulis' Smart Paster is a great little tool that can paste text in programmer-friendly ways (e.g. as a StringBuilder, as a language-specific string literal, etc.). However, it doesn't seem to be available for VS2010. Anyone know of a similar extension or of plans to port Smart Paster?

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