a few basic xcode questions - xcode

what is copy items into destination group's folder (if needed)
is this a good option? If I dont choose it will it just make a reference to my files?
Also if I have two images with the same name like /images/home.gif, /public/home.gif
but they are in different groups how does the compile know which image to use? is this even possible?

I'll have a crack at this :-)
1 & 2 - Used when adding files to a project. If selected, the file you are adding is copied into the projects directory from wherever it originally was. Note it is copied. If not selected, the project can still use it, it just has a reference to the original source file. Which means that if something happens to the original file, the project will not longer have a copy it can use. Personally for files such as images I copy them into the project so they stay with the project. For other things such as external apis, I don't because I don't want multiple copies everywhere.
3 - If you have two images with the same name you won't be able to copy them in without renaming one. XCode may do this for you, I've never tried. I'd suggest renaming one so you control it's name.
4 - Don't get confused by groups. They are logical groupings of files within XCode and do not refer to the underlying file system. Having said that you can actually assign a directory to a group so if you really wanted to you can match the two. I tend to do it a little. In my projects I generally have a src and test directory. I setup two groups and assign them to refer to these directories. Then when I create a new source code file I can create it in the src or test group and it will be created in the sub-directory instead of the project root directory. Often below src and test I will use other groups, but they do not map to any sub directories. The result is that the root directory of the project is free of source code files and the source code also has source and test code separated.

Related

Is there any way to filter folders/directories by name in windows?

Is there any way to filter folders by Name in Windows?
Let's suppose I have 100 or 200 folders with different names in the directory.
Now I have a list of specific folder names that are in the folders and I want to filter/move those listed name folders to another directory.
In an easy word I want to copy/move listed folder names to another folder/directory.
How can I do that with any software in bulk? I am searching for it but I can't find any software to do this task for me. I can manually move the folder one by one but it's so time-consuming when I have hundreds of folders.
I am currently using XCOPY GUI software but in this software, I have to first filter the path exception folder before I get my final result.
Example:
Main Dir contains
1st folder
2nd folder
3rd folder
4th folder
and so on ...
I have a list of names in my notepad which folders I want to copy or move.
3rd folder,
4th folder
Final Dir:
3rd folder
4th folder
How can I do that in bilk using any software or any way?
Thanks
If you're using Java, you can use methods in the Files class, or instances of File.
For example, Files.move() might help. If you're using an IDE, type stuff that might be right, like Files.move(), and suggestions will pop up that might lead you down the right path. Also, you can look at the documentation. I am currently scraping the web and creating and filing files, so I know about this somewhat, although not specifically about moving folders rather than files. I'm using Java on a MacBook, so that might influence how relevant my suggestions are to you depending on what you're using.
Basically, look at the documentation for your language. You hopefully won't need any external libraries since moving folders should be a basic task.

Moving files within codeblocks project

So this might be outright stupid question, but I found no answer looking on the internet or fiddling with different buttons.
Say you have a project with several physical folders which contain different source files. Now you've decided that you'll create a new folder and move parts of three old ones in there.
In order to do so, I had to do the following:
Go into my project folder via explorer and create a new folder
Manually move all the desired files into that folder
Return to code blocks and remove all the moved files from the project
Re-add all the removed files by selecting the whole new folder when adding existing files
Manually going through code and modifying all affected include directives to point to the proper path
It would be much simpler if you could right-click a folder, create a new nested folder and just drag-and-drop files to where you want them while code blocks would move them on disk and correct the includes for me.
It's the way that Eclipse does it for Java. Is there similar functionality for code blocks, maybe a plugin?

Difference between folder and group in Xcode?

In Xcode, what is the difference between a folder and a group? Are these interchangeable terms or is there a subtle difference?
Groups
With groups, Xcode stores in the project a reference to each individual file.
Folders
Folder references are simpler. You can spot a folder reference because it shows up in blue instead of yellow.
There are two types of folders in Xcode: groups and folder references.
You can use groups to organize files in your project without affecting
their structure on the actual file system. This is great for code,
because you’re only going to be working with your code in Xcode. On
the other hand, groups aren’t very good for resource files.
On any reasonably complicated project, you’ll usually be dealing with
dozens – if not hundreds – of asset files, and those assets will need
to be modified and manipulated from outside of Xcode, either by you or
a designer. Putting all of your resource files in one flat folder is a
recipe for disaster. This is where folder references come in. They
allow you to organize your files into folders on your file system and
keep that same folder structure in Xcode.
Reference
A folder in Xcode represents a folder in the file system.
A group in Xcode is a "fake" folder which does NOT represent a folder in the file system.
It is common to use a combination of groups and folders for a given Xcode project.
Xcode behavior (starting with v9) has changed and groups are now actual folders on-disk.
I found that Xcode 9.2 has two versions of group when you create a group. One is group the other is group without folder. The first one also creates folder in your file system, the second one doesn't.
I was following a tutorial and it had me drag a nested folder with a number of autogenerated Swift files with public classes and structs. I missed that I was supposed to click the "Create groups" and not "Create folder references". When I added the folders/paths using the incorrect 'folder ref', my other scripts did not see these public objects. When I did it the right way, added them using 'groups', then they were recognized in other scripts. I think this is in keeping with TheNitram's comment, that 'group' adds to the root ...

When to tick "copy items into destination's group folder (if needed)"

Whenever I am adding some files to my project by dragging and dropping in Xcode, a popup message is shown "Copy items into destination's group folder (if needed)".
I noticed that when we are using most of the third party library's we DON'T tick the checkbox and instead specify the library path in "Header Search Path/Library search Path". But for smaller resource files like images, we tick the checkbox.
Which specific scenarios do I have to tick and what difference will it make?
It all depends on how you want to organize you project. It's far more common to store 3rd party frameworks somewhere on your machine that is independent of any project that may use that framework, thus allowing multiple projects to reference the same shared framework project from a standard directory. In that case, you don't want the 3rd party framework copied into your own project, and so you don't check that box.
Images and other resource files are typically owned on a project-by-project basis, so it makes the most sense to store those in the directory of the project itself. To pull that off, you check that box to make sure a copy is made in the project's directory if one doesn't already exist.
Neither of those rules are absolute, you could copy an entire framework into your project's directory if you want, and you could reference media assets from some standard location. It's all up to you to implement good project organization.
Typically, your project is saved to a project folder. If you drag stuff from outside the folder into your project without copying, only references to the added files are stored. You will have to be careful not to delete them, or your project will break.
Also, if you are using version control, such as the built-in git, files not in the main folder will not get added to your version tree.
I got into the habit of copying everything I need into the main folder and then drag-add without copying. This is working well for me and has so far avoided any errors.

Xcode file system

I am using Xcode as part of my build for OS X, but since it is not the only IDE used, files may be added from the file system directly.
As far as I can tell, there are two ways of adding folders:
Folder reference picks up all the changes on the file system but does not register any of the files as sources.
Recursive copy allows for the files to be built but I need to constantly maintain the file structure
I am wondering if there was a way to setup Xcode to build all of the files that are a part of the folder reference or failing that, if there is a quick script to automagically fix file system discrepancies.
I came up with proof-of-concept solution that works, but will require some work to use in production. Basically, I set up a new "External Target", which compiles all source files in a given directory into a static library. Then the static library is linked into the Main Application.
In detail:
Create a directory (lets call it 'Code') inside your project directory and put some source code in it.
Create a Makefile in the Code directory to compile the source into a static library. Mine looks like this.*****
Create an External Target (lets call it 'ExternalCode') and point it to the Code directory where your source and Makefile reside.
Build the ExternalCode and create a reference to the compiled static library (ExternalCode.a) in the Products area of your project. Get Info on the reference and change the Path Type to "Relative to Built Product".
Make sure ExternalCode.a is in the "Link With Binary Libraries" section of your main target.
Add the ExternalCode target as a dependency of your main target
Add the Code directory to your "User Header Search Paths" of your main target.
Now when you drop some source files into 'Code', Xcode should recompile everything. I created a demo project as a proof of concept. To see it work in, copy B.h/m from the 'tmp' directory into the 'Codes' directory.
*Caveats: The Makefile I provided is oversimplified. If you want to use it in a real project, you'll need to spend some time getting all the build flags correct. You'll have to decide whether it's worth it to manually manage the build process instead of letting Xcode handle most of the details for you. And watch out for paths with whitespace in them; Make does not handle them very well.
Xcode's AppleScript dictionary has the nouns and verbs required to do these tasks. Assuming your other IDE's build scripts know what files are added/deleted, you could write very simple AppleScripts to act as the glue. For example a script could take a parameter specifying a file to add to the current open project in Xcode. Another script could take a parameter to remove a file from the current project. Then your other IDE could just call these scripts like any other command line tool in your build script.
I'm not aware of any built-in functionality to accomplish this. If you need it to be automatic, your best option may be to write a Folder Action AppleScript and attach it to your project folder.
In all likelihood it would be a rather difficult (and probably fairly brittle) solution, though.
It's not pretty, and I think it only solves half your problem but... If you recursively copy, then quit xcode. Then you delete the folders, and replace them with simlinks to the original folders, you at least have files that are seen as code, and they are in the same files as the other IDE is looking at... You still will need to manually add and remove files.
I sort of doubt that there's a better way to do this without some form of scripting (like folder actions) because xcode allows you to have multiple targets in one project, so it's not going to know that you want to automatically include all of the files in any particular target. So, you're going to have to manually add each file to the current target each time anyway...
One way to import another file from add/existing file:
and set your customization for new file that added .
see this

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