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• Rolling back a git tree, fully or partially (single file) how to?

  - by Tzury Bar Yochay

  On a given server, I have a set of daemons each of which has its own configuration file. I would like to use git to manage the configuration files editing during time and always have the option to rollback to the "factory defaults" in regards to all files or a specific one. For instance, given the following structure: $ ls -l total 0 -rw-r--r-- 1 tzury tzury 0 2011-01-05 06:36 bar.conf -rw-r--r-- 1 tzury tzury 0 2011-01-05 06:36 baz.conf -rw-r--r-- 1 tzury tzury 0 2011-01-05 06:36 foo.conf Assuming all those .conf files are stored in a git repository, I want to be able to restore all files into their original shape (that would be the first git commit). Yet, I would also like to be able to rollback a specific file to the factory defaults, while others remain up to date.

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• Take advantage of multiple cores executing SQL statements

  - by willvv

  I have a small application that reads XML files and inserts the information on a SQL DB. There are ~ 300 000 files to import, each one with ~ 1000 records. I started the application on 20% of the files and it has been running for 18 hours now, I hope I can improve this time for the rest of the files. I'm not using a multi-thread approach, but since the computer I'm running the process on has 4 cores I was thinking on doing it to get some improvement on the performance (although I guess the main problem is the I/O and not only the processing). I was thinking on using the BeginExecutingNonQuery() method on the SqlCommand object I create for each insertion, but I don't know if I should limit the max amount of simultaneous threads (nor I know how to do it). What's your advice to get the best CPU utilization? Thanks

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• Are there any FTP programs which can automatically send the contents of a folder to a remote server?

  - by Nick G

  Are there any FTP programs which can automatically copy (or rather 'move') the contents of a folder to a remote server? I have of course googled this but only really found one or two ancient products which look really clunky and unmaintained. I was wondering if there's a way to do this from the command line or any better solution to the base problem. In more detail, new files get written to a folder every few hours. These new files need to be FTP'd elsewhere and then deleted. Mirroring or synchonisation systems are probably out of the picture as we need to delete the source files once they've been successfully transferred. If it's easier, the 'solution' could pull the files off the server (rather than the server pushing them to the client). The computers will both be Windows OS.

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• auto-import of packages across project in eclipse

  - by Reddy

  I have used file search functionality in eclipse to replace a specific occurrence of text with a replace text which contains a java method name in all files across the workspace. But now in all those files I have to add the import statement (for the method name to resolve). Is there an automatic way of doing this instead of manually searching and importing the package myself in all files?

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• How do I add dependencies to this header file

  - by Phenom

  Here is a simple header file for six different programs that used to work right, but then my files also include other files. This needs to get changed so that if the dependencies change the files that include those dependencies get updated. all: load list show add delete btree %: %.cpp g++ $< -g -o $@

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• Distributing an executable zip file with __main__.py, how to access extra data?

  - by pygabriel

  I'm doing a little program and I want to distribute using this recipe: single directory with _main_.py in it zip this directory and echo #!/usr/bin/env python\n file.zip making it executable The problem is that in this package I have also extra files (I'm using pygtk toolkit and I need images and ui xml files). When I try to access these files I have the error that the resource is unavailable (the path that I'm trying to open is something like file.zip/gui/gui.ui ). How can I handle this situation?

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• CSS Compressor with @include support

  - by Michael

  Is there any CSS compressor that supports the @include directive? I have a bunch of css files that have one main file and are linked via those @include directives. Now that I want to compress the CSS files I'm looking for a compression tool that supports that. I cannot change the original files not to use includes because those are centrally developed ones.

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• Utility to indexing a directory?

  - by achacha

  Here is what I am trying to do: I have a directory (with sub-directories) with source files, I need to index them so I can find files fast (find as I type) so I can open them for compare/analysis. I don't want it to scan the content, just filename index for quick lookup. I do this when trying to determine if a class exists in a given tree (we maintain directory trees for each release which has a lot of files) and sometimes I want to quickly check files to see how something was implemented, etc. Most of these directories are on remote servers (sometimes on the other side of the world) or on a VM (which is on a server far away), so I only want to read the directory trees once, which is why running find every time is way too slow and doing 'find . foo.txt' and then searching that is a bit tedious. It's kind of like how "Find Resource" works in eclipse after it indexes all files, but it's a bit of a chore to import/remove directories into eclipse every time. Eclipse is also very slow when dealing with remote volumes. Any suggestions are appreciated :)

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• Background loading javascript into iframe with using jQuery/Ajax?

  - by user210099

  I'm working on an offline only help system which requires loading a large amount of search-related data into an iframe before the search functionality can be used. Due to the folder structure of the project, I am unable to use Ajax-related background load methods, since the files I need are loaded a few directories "up and over." I have written some code which delays the loading of the help data until the rest of the webpage is loaded. The help data consists of a bunch of javascript files which have information about the terms, ect that exist in the help books which are installed on the system. The webpage works fine, until I start to load this help data into a hidden iframe. While the javascript files are loading, I can not use any of the webpage. Links that require a small files be downloaded for hover over effects don't show up, javascript (switching tabs on the page) has no effect. I'm wondering if this is just a limitation of the way javascript works, or if there's something else going on here. Once all the files are loaded for the help system, the webpage works as expected. function test(){ var MGCFrame = eval("parent.parent"); if((ALLFRAMESLOADED == true)){ t2 = MGCFrame.setTimeout("this.IHHeader.frames[0].loadData()",1); } else{ t1 = MGCFrame.setTimeout("this.IHHeader.frames[0].test()",1000); } } Load data simply starts the data loading process. Thanks for any help you can provide.

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• I have some basic questions setting up a PHP daemon

  - by mike

  I will be writing my first daemon in php and I have a couple really basic questions that I need help with. 1) What packages need to be installed on my linux server and Does anything in PHP need to be enabled? So far I have gotten this - http://pear.php.net/package/System_Daemon/download 2) Where on server do I save my daemon files? 3) I have a number of files that need to be included within the daemon that contain classes and functions for gathering emails and attachments through IMAP. All of these files are currently in my web public directory, how do I include these files within my daemon? I think that is everything I need to get started. Thanks so much!

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• How to check if a file is a textfile?

  - by daniels

  I have a folder full of files and i want to search some string inside them. The issue is that some files may be zip,exe,ogg,etc. Can i check somehow what kind of file is it so i only open and search through txt, php, etc files. I can't rely on the file extension.

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• open text file in android emulator

  - by Karthick

  How to open a text file in android.I am using android 1.5 emulator and eclipse ide.I try to push files to the device emulator.In Eclipse ide android file explorer has the text file and image files in the sdcard.In the Emulator Image files are in the Gallery.How can i see the text file in the android emulator.

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• How to ignore an exception and continue processing a foreach loop?

  - by Barry Dysert

  I have a test program that is supposed to loop over all the files under C:. It dies when it hits the "Documents and Settings" folder. I'd like to ignore the error and keep looping over the remaining files. The problem is that the exception is thrown in the foreach, so putting a try/catch around the foreach will cause the loop to exit. And putting a try/catch after the foreach never fires (because the exception is thrown in the foreach). Is there any way to ignore the exception and continue processing the loop? Here's the code: static void Main(string[] args) { IEnumerable<string> files = Directory.EnumerateFiles(@"C:\", "*.*", SearchOption.AllDirectories); foreach (string file in files) // Exception occurs when evaluating "file" Console.WriteLine(file); }

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• Win32 C++ Import path based on OS?

  - by Zenox

  I'm working with some legacy code that has an import like so: #import "C:\Program Files\Common Files\System\ado\msado15.dll" rename("EOF", "EndOfFile") The problem is, on a x64 machine the path for this import is in the 'Program Files (x86)' directory. Is there a preprocessor macro I can wrap around this to make it work on either? Edit: I think I found it. _M_X64, but im not 100% sure if this is correct.

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• Shuffle array variables in a pre-specified order, without using extra memory of "size of input array"

  - by Eternal Learner

  Input : A[4] = {0,4,-1,1000} - Actual Array P[4] = {1,0,3,2} - Order to be reshuffled Output: A[4] = {4,0,1000,-1} Condition : Don't use an additional array as memory. Can use an extra variable or two. Problem : I have the below program in C++, but this fails for certain inputs of array P. #include<iostream> using namespace std; void swap(int *a_r,int *r) { int temp = *r; *r = *a_r; *a_r = temp; } int main() { int A[4] = {0,4,-1,1000}; int P[4] = {3,0,1,2}; int value = A[0] , dest = P[0]; for(int i=0; i<4;i++) { swap(&A[dest],&value); dest = P[dest]; } for(int i=0;i<4;i++) cout<<A[i]<<" "; }

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• displaying a physical webpage with frames in iframe

  - by ksa

  i have iframe in my webpage, i have done the coding part for browsing the folders and viewing files in iframe.each folder has a index.html.now i need to display the index.html in iframe.index.html page contains frames divided into 2,each from different sources.i tried to display a sample webpage without frames and it was a success,page with frames spoils the party. my code for getting the html file <% String path=request.getParameter("name"); File directory = new File(path); FileFilter fileFilter=new FileFilter() { @Override public boolean accept(File file) { return file.getName().endsWith("html"); } }; File[] files = directory.listFiles(fileFilter); for (int index = 0; index < files.length; index++) { String s= files[index].getName(); String s1=files[index].getAbsolutePath(); %> <a href="fileview?name=<%=s1%>" target="sss"><%=s%></a> <% } %> mycode for displaying the page in iframe. public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException { res.setContentType("text/html"); PrintWriter out=res.getWriter(); String name=req.getParameter("name"); res.setHeader("Content-Disposition", "inline; filename=\""+name+"\""); java.io.FileInputStream fis=new java.io.FileInputStream(name); int i; while((i=fis.read())!=-1) { out.write(i); } fis.close(); out.close(); }

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• Mistake in dispaly and insert method (double - ended queue)

  - by MANAL

  1) My problem when i make remove from right or left program will be remove true but when i call diplay method the content wrong like this I insert 12 43 65 23 and when make remove from left program will remove 12 but when call display method show like this 12 43 65 and when make remove from right program will remove 23 but when call display method show like this 12 43 Why ?????? ); and when i try to make insert after remove write this Can not insert right because the queue is full . first remove right and then u can insert right where is the problem ?? Please Help me please 2) My code FIRST CLASS class dqueue { private int fullsize; //number of all cells private int item_num; // number of busy cells only private int front,rear; public int j; private double [] dqarr; //========================================== public dqueue(int s) //constructor { fullsize = s; front = 0; rear = -1; item_num = 0; dqarr = new double[fullsize]; } //========================================== public void insert(double data) { if (rear == fullsize-1) rear = -1; rear++; dqarr[rear] = data; item_num++; } public double removeLeft() // take item from front of queue { double temp = dqarr[front++]; // get value and incr front if(front == fullsize) front = 0; item_num --; // one less item return temp; } public double removeRight() // take item from rear of queue { double temp = dqarr[rear--]; // get value and decr rear if(rear == -1) // rear = item_num -1; item_num --; // one less item return temp; } //========================================= public void display () //display items { for (int j=0;j //========================================= public int size() //number of items in queue { return item_num; } //========================================== public boolean isEmpty() // true if queue is empty { return (item_num ==0); } } SECOND CLASS import java.util.Scanner; class dqueuetest { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.println(" Welcome here** "); System.out.println(" * Mind Of Programming Group*** "); System.out.println(" _________________________ "); System.out.println("enter size of your dqueue"); int size = input.nextInt(); dqueue mydq = new dqueue(size); System.out.println(""); System.out.println("enter your itemes"); //===================================== for(int i = 0;i<=size-1;i++) { System.out.printf("item %d:",i+1); double item = input.nextDouble(); mydq.insert(item); System.out.println(""); } //===================================== int queue =size ; int c = 0 ; while (c != 6) { System.out.println(""); System.out.println("**************************"); System.out.println(" MAIN MENUE"); System.out.println("1- INSERT RIGHT "); System.out.println("2- REMOVE LEFT"); System.out.println("3- REMOVE RIGHT"); System.out.println("4- DISPLAY"); System.out.println("5- SIZE"); System.out.println("6- EXIT"); System.out.println("**************************"); System.out.println("choose your operation by number(1-6)"); c = input.nextInt(); switch (c) { case 1: if (queue == size) System.out.print("Can not insert right because the queue is full . first remove right and then u can insert right "); else { System.out.print("enter your item: "); double item = input.nextDouble(); mydq.insert(item);} break; case 2: System.out.println("REMOVE FROM REAR :"); if( !mydq.isEmpty() ) { double item = mydq.removeLeft(); System.out.print(item + "\t"); } // end while System.out.println(""); mydq.display(); break; case 3: System.out.println("REMOVE FROM FRONT :"); if( !mydq.isEmpty() ) { double item = mydq.removeRight(); System.out.print(item + "\t"); } // end while System.out.println(""); mydq.display(); break; case 4: System.out.println("The items in Queue are :"); mydq.display(); break; case 5: System.out.println("The Size of the Queue is :"+mydq.size()); break; case 6: System.out.println("Good Bye"); break; default: System.out.println("wrong chiose enter again"); } //end switch } //end while } // end main }//end class

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• Ruby: Streaming large AWS S3 object freezes

  - by Peter

  Hi, I am using the ruby aws/s3 library to retrieve files from Amazon S3. I stream an object and write it to file as per the documentation (with debug every 100 chunks to confirm progress) This works for small files, but randomly freezes downloading large (150MB) files on VPS Ubuntu. Fetching the same files (150MB) from my mac on a much slower connection works just fine. When it hangs there is no error thrown and the last line of debug output is the 'Finished chunk'. I've seen it write between 100 and 10,000 chunks before freezing. Anyone come across this or have ideas on what the cause might be? Thanks The code that hangs: i=1 open(local_file, 'w') do |f| AWS::S3::S3Object.value(key, @s3_bucket) do |chunk| puts("Writing chunk #{i}") f.write chunk.read_body puts("Finished chunk #{i}") i=i+1 end end

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• Design ideas for

  - by ZeroVector

  I need to design and I'm looking in to using WCF to accomplish this. Basically here is how I have it: Server process: Generate list of files to transfer across multiple FTP/SFTP sites in to a queue. Client(s): Talk to server to get files to transfer. Transfer the files acquired. All the data necessary to transfer the files will be present. Once transferred successfully, notify the server to remove it from the queue. Also, make sure no other client is trying to perform the transfer. Are there are any good articles/design patterns to use? I think it sounds like a good candidate for WCF since ideally it would be load balanced against a few machines. Development will be in C#/.NET 3.5.

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• Store #VALUE! #NUM! #REF! in variable.

  - by Ommit

  So a simple version of what I'm trying to do. Say I know there is an error in cell(1,1), furthermore I know it is either #num!, #ref! or #value!, I want to be able to store the respective error message in a variable, so I can print it to a different sheet. This is what I tried and it clearly failed. Sub FindAndPrintErrors dim Store as string If IsError(Range("A1"))) = True Then Store = Range("A1").value 'it breaks here' end if range("B1") = Store end sub I know I can do this but I wonder if there is a better way. Sub FindAndPrintErrors2 dim Store If IsError(Range("A1"))) = True Then temp = Range("A1").value 'it breaks here' if temp = "error 2029" then store = "#num!" ' and so on' end if range("B1") = Store end sub

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• Have a workaround for the 1,000 file limit in a directory on windows mobile 5?

  - by nateday76

  I need to download more than 1,000 files into a windows mobile 5 directory located on the storage card. If i copy the files onto the storage card via my desktop there is no problem. But when i try to download the files from the handheld device I get a disk full error, even though there is plenty of room due to the 1,000 file limit. Has anyone run into this and found a workaround? I'm going to try zipping all of the files then decompressing on the device but not sure that this will work.

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• SQL Server 2005: When clicking "Add" database I keep getting 'verify that the path or file exists'

  - by Code Sherpa

  When I right click on "databases" in Sql Server 2005 Management Studio and then Attach... Add I get the following error: C:\Documents and Settings\Administrator\My Documents\SQL Server Management Studio\ Projects\Path\To\MDF\And\LDF\Files\ cannot access the specified path or file on the server. Verify that you have the necessary security privileges and that the path or file exists. The answer is easy - the MDF and LDF files where removed when Nant (by way of my dev machine) issued a drop command. But, after replacing the MDF and LDF files, I want to reattach the database but the above error keeps coming up when I select "Add". Also, I have already "unattached" the database in question and it no longer appears on the left under "databases". I have tried to replace a copy of the MDF and LDF files in the folder being referenced and that didn't work. Any ideas as to how to gracefully get rid of this error?

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• Using Git or Mercurial, how would you know when you do a clone or a pull, no one is checking in file

  - by Jian Lin

  Using Git or Mercurial, how would you know when you do a clone or a pull, no one is checking in files (pushing it)? It can be important that: 1) You never know it is in an inconsistent state, so you try for 2 hours trying to debug the code for what's wrong. 2) With all the framework code -- potentially hundreds of files -- if some files are inconsistent with the other, can't the rake db:migrate or script/generate controller cause some damage or inconsistencies to the code base?

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• float addition 2.5 + 2.5 = 4.0? RPN

  - by AJ Clou

  The code below is my subprogram to do reverse polish notation calculations... basically +, -, *, and /. Everything works in the program except when I try to add 2.5 and 2.5 the program gives me 4.0... I think I have an idea why, but I'm not sure how to fix it... Right now I am reading all the numbers and operators in from command line as required by this assignment, then taking that string and using sscanf to get the numbers out of it... I am thinking that somehow the array that contains the three characters '2', '.', and '5', is not being totally converted to a float... instead i think just the '2' is. Could someone please take a look at my code and either confirm or deny this, and possibly tell me how to fix it so that i get the proper answer? Thank you in advance for any help! float fsm (char mystring[]) { int i = -1, j, k = 0, state = 0; float num1, num2, ans; char temp[10]; c_stack top; c_init_stack (&top); while (1) { switch (state) { case 0: i++; if ((mystring[i]) == ' ') { state = 0; } else if ((isdigit (mystring[i])) || (mystring[i] == '.')) { state = 1; } else if ((mystring[i]) == '\0') { state = 3; } else { state = 4; } break; case 1: temp[k] = mystring[i]; k++; i++; if ((isdigit (mystring[i])) || (mystring[i] == '.')) { state = 1; } else { state = 2; } break; case 2: temp[k] = '\0'; sscanf (temp, "%f", &num1); c_push (&top, num1); i--; k = 0; state = 0; break; case 3: ans = c_pop (&top); if (c_is_empty (top)) return ans; else { printf ("There are still items on the stack\n"); exit (0); case 4: num2 = c_pop (&top); num1 = c_pop (&top); if (mystring[i] == '+'){ ans = num1 + num2; return ans; } else if (mystring[i] == '-'){ ans = num1 - num2; return ans; } else if (mystring[i] == '*'){ ans = num1 * num2; return ans; } else if (mystring[i] == '/'){ if (num2){ ans = num1 / num2; return ans; } else{ printf ("Error: cannot divide by 0\n"); exit (0); } } c_push (&top, ans); state = 0; break; } } } } Here is my main program: #include <stdio.h> #include <stdlib.h> #include "boolean.h" #include "c_stack.h" #include <string.h> int main(int argc, char *argv[]) { char mystring[100]; int i; sscanf("", "%s", mystring); for (i=1; i<argc; i++){ strcat(mystring, argv[i]); strcat(mystring, " "); } printf("%.2f\n", fsm(mystring)); } and here is the header file with prototypes and the definition for c_stack: #include "boolean.h" #ifndef CSTACK_H #define CSTACK_H typedef struct c_stacknode{ char data; struct c_stacknode *next; } *c_stack; #endif void c_init_stack(c_stack *); boolean c_is_full(void); boolean c_is_empty(c_stack); void c_push(c_stack *,char); char c_pop(c_stack *); void print_c_stack(c_stack); boolean is_open(char); boolean is_brother(char, char); float fsm(char[]);

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• How to plot the graph(line) from a file in java?

  - by kiran

  I have a directory containing list of files. Those files have some list of values as x and y ordered as line by line. And my question is just I would like to read those files one by one and to plot line graphs based on those values. Could you please help me for that?

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