Hi I have created an aplication myprogram.app file. Now I want to create Drag and drop DMG file for that application. Skype and other software does the same thing.
How to create Drag and Drop DMG file foe my application.
Thanks
Sunil Kumar Sahoo
It's actually pretty easy. You just need to compose some hidden files. Easy way to do this is to just copy someone elses and change to suit your app.
For example, if I mount the MonoDevelop DMG, then I see:
atom:MonoDevelop fak$ ls -al
total 40
drwxr-xr-x 8 fak staff 340 Nov 4 14:03 .
drwxrwxrwt# 10 root admin 340 Nov 10 21:33 ..
-rw-r--r--# 1 fak staff 12292 Nov 4 14:03 .DS_Store
d-wx-wx-wt 2 fak staff 68 Nov 4 14:03 .Trashes
drwxr-xr-x 3 fak staff 102 Nov 4 14:03 .background
drwx------ 4 fak staff 136 Nov 4 14:03 .fseventsd
lrwxr-xr-x 1 fak staff 13 Nov 4 14:03 Applications -> /Applications
drwxr-xr-x 3 fak staff 102 Nov 4 14:02 MonoDevelop.app
Here we see .background that is a directory with a PNG file (the background). The app itself (MonoDevelop.app) and a link to /Applications.
The .DS_Store contains the window size, icon positions, etc. Just setup a directory and use the .DS_Store from it.
There's really not any magic to this. You can create a disk image with Disk Utility. Put the stuff on it that you need, and then convert it to a compressed read-only image (again, with Disk Utility).
For some tips on prettying up the appearance of the window, check out this question. If you need to automate this process, check out this other question for some ways to do that.
Related
As a reluctant Mac user, I am routinely frustrated by things that should be very simple. Finder is one of those. When trying to open an XML file from Firefox, I am asked what application I whish to open it with. Obviously MacVim. To do that, I need to navigate to /usr/local/bin/gvim which is a symlink to /Cellar, since it was installed with HomeBrew. However, when I select "Open with" and click "Choose", the Finder comes up and defaults to Applications. It's not in there, I just want to navigate directly to the symlink. Switching to "Macintosh HD" (also known as "/" to a more refined audience) only displays Application, Library, System, and Users. Where is everything else? Where is /usr, /bin, /etc? As a user, this seems disingenuous. It's not an accurate representation of my location in the filesystem. Sorry, this is a bit of a rant, but also a legitimate question. How do I display these all the time?
The UNIX (lowercase) directories are hidden from view, intentionally, through a special "hidden" flag. You can see those in ls -lO:
Chimera:~ morpheus$ ls -lO /
total 14
drwxrwxr-x+ 59 root admin sunlnk 1888 Sep 23 16:46 Applications
drwxr-xr-x+ 65 root wheel sunlnk 2080 Mar 20 2020 Library
drwxr-xr-x 2 root wheel hidden 64 Sep 30 2018 Network
drwxr-xr-x# 5 root wheel restricted 160 Sep 21 2018 System
drwxr-xr-x 7 root admin - 224 Mar 20 2020 Users
drwxr-xr-x# 8 root wheel hidden 256 Sep 23 21:17 Volumes
drwxr-xr-x# 37 root wheel restricted,hidden 1184 Mar 27 2019 bin
drwxrwxr-t# 2 root admin hidden 64 Feb 8 2019 cores
dr-xr-xr-x 3 root wheel hidden 4821 Aug 30 19:38 dev
lrwxr-xr-x# 1 root wheel restricted,hidden 11 Sep 30 2018 etc -> private/etc
dr-xr-xr-x 2 root wheel hidden 1 Sep 24 07:59 home
-rw-r--r-- 1 root wheel hidden,compressed 313 Aug 17 2018 installer.failurerequests
drwxr-xr-x 2 root wheel - 64 Oct 3 2018 mnt
drwxr-xr-x 2 root wheel - 64 Jan 21 2018 mnt1
dr-xr-xr-x 2 root wheel hidden 1 Sep 24 07:59 net
drwxr-xr-x 6 root wheel sunlnk,hidden 192 Sep 30 2018 private
drwxr-xr-x# 64 root wheel restricted,hidden 2048 Mar 27 2019 sbin
lrwxr-xr-x# 1 root wheel restricted,hidden 11 Sep 30 2018 tmp -> private/tmp
drwxr-xr-x# 9 root wheel restricted,hidden 288 Sep 21 2018 usr
lrwxr-xr-x# 1 root wheel restricted,hidden 11 Sep 30 2018 var -> private/var
Additionally, Finder will not display hidden "." files, the same way ls -l needs to be "persuaded" using -a (try "ls -lOa /", omitted here for brevity).
Pressing the apple key along with shift and '.' will display everything. To make this the default behavior:
defaults write com.apple.finder AppleShowAllFiles YES
In case you're interested in the rationale - it dates back to NeXTSTEP (the progenitor to MacOS X and later as we know it now), which wanted to provide a user interface to its own (Uppercase first letter) directories, while hiding those of the underlying UNIX (BSD layer), seeing as non-root users have nothing to look for there, anyway (and most users have no knowledge of terminal/shell).
I'm a Python programmer that is trying to make a system of sorts that creates save data for a game I'm making, and I want it to be in different places in something like Ubuntu than I do macOS. As I don't have a macOS, and it's impossible to just up and get an ISO to get a macOS VM, I can't look through the files and folders and see what it has (or doesn't) that Linux does or doesn't.
I've tried looking all over to the point of attempting to get a hold of an ISO to build a VM in VirtualBox, but haven't been successful at all.
What files or folders does macOS have that Linux does, or vice versa?
To complete the (excellent) answer from #Michael, here is the listing of the home and root directory after a fresh install on the latest stable release of MacOS System (10.14.2)
MacBook-Pro:~ max$ ls -al /
total 37
drwxr-xr-x 26 root wheel 832 Jan 6 19:00 .
drwxr-xr-x 26 root wheel 832 Jan 6 19:00 ..
-rw-rw-r-- 1 root admin 8196 Jan 13 07:11 .DS_Store
drwx------ 5 root admin 160 Jan 6 11:47 .Spotlight-V100
d-wx-wx-wt 2 root wheel 64 Jan 14 06:39 .Trashes
---------- 1 root admin 0 Aug 18 06:53 .file
drwx------ 11 root admin 352 Jan 14 06:39 .fseventsd
drwxr-xr-x 2 root wheel 64 Aug 18 06:53 .vol
drwxrwxr-x+ 39 root admin 1248 Nov 30 12:49 Applications
drwxr-xr-x+ 60 root wheel 1920 Nov 30 12:50 Library
drwxr-xr-x 2 root wheel 64 Aug 18 06:53 Network
drwxr-xr-x# 5 root wheel 160 Nov 30 12:46 System
drwxr-xr-x 5 root admin 160 Jan 6 18:59 Users
drwxr-xr-x+ 4 root wheel 128 Jan 14 06:39 Volumes
drwxr-xr-x# 37 root wheel 1184 Nov 30 12:55 bin
drwxrwxr-t 2 root admin 64 Aug 18 06:53 cores
dr-xr-xr-x 3 root wheel 4301 Jan 14 06:39 dev
lrwxr-xr-x# 1 root wheel 11 Jan 6 18:49 etc -> private/etc
dr-xr-xr-x 2 root wheel 1 Jan 14 06:40 home
-rw-r--r-- 1 root wheel 313 Aug 18 10:03 installer.failurerequests
dr-xr-xr-x 2 root wheel 1 Jan 14 06:40 net
drwxr-xr-x 6 root wheel 192 Nov 30 12:50 private
drwxr-xr-x# 64 root wheel 2048 Jan 6 18:49 sbin
lrwxr-xr-x# 1 root wheel 11 Jan 6 18:49 tmp -> private/tmp
drwxr-xr-x# 9 root wheel 288 Nov 30 12:38 usr
lrwxr-xr-x# 1 root wheel 11 Jan 6 18:49 var -> private/var
And the home dir:
MacBook-Pro:~ max$ ls -al ~
total 16
drwxr-xr-x+ 15 max staff 480 Jan 14 06:43 .
drwxr-xr-x 5 root admin 160 Jan 6 18:59 ..
-r-------- 1 max staff 7 Jan 6 18:59 .CFUserTextEncoding
drwx------ 2 max staff 64 Jan 14 06:40 .Trash
-rw------- 1 max staff 0 Jan 13 07:11 .bash_history
drwx------ 10 max staff 320 Jan 14 06:40 .bash_sessions
-rw------- 1 max staff 908 Jan 14 06:43 .viminfo
drwx------+ 3 max staff 96 Jan 6 18:59 Desktop
drwx------+ 3 max staff 96 Jan 6 18:59 Documents
drwx------+ 3 max staff 96 Jan 6 18:59 Downloads
drwx------# 51 max staff 1632 Jan 13 07:11 Library
drwx------+ 3 max staff 96 Jan 6 18:59 Movies
drwx------+ 3 max staff 96 Jan 6 18:59 Music
drwx------+ 3 max staff 96 Jan 6 18:59 Pictures
drwxr-xr-x+ 4 max staff 128 Jan 6 18:59 Public
Application settings on macOS are ususally saved somewhere in ~/Library: Common places are ~/Library/Preferences/com.example.mycoolgame.plist for preferences (should be in plist format and "com.example.mycoolgame" should be a valid bundle ID that you own (you should own the domain)). The advantage/disadvantage of this path is that power users know about this directory and can edit the files there as they wish.
Then you have ~/Library/Caches for cached data. All cached data should be put somewhere under this directory. (Never use it for content that cannot be regenerated or redownloaded though.)
~/Library/ApplicationSupport/YourApplicationName/...: here you can basically do anything you like. It would be good if "YourApplicationName" would be globally unique in this case.. So better make it long. Users usually don't see the filesystem contents of anything below "~/Library", so there is no need for short names.
Of course, you can also put your savegames in ~/Documents/MyCoolGame/savegames and tell the user that you save the games there.
A gotcha (maybe): I'm not sure if system APIs expand "~" properly. I think probably not: Calling fopen with a path that starts with "~" would most likely not do the right thing. The users directory is located at something like "/Users/max", so "~" expands to "/Users/max" in the command line if the username is "max".
I can't answer your original question "What directories does Linux have that macOS doesn't?" because I don't have a Linux box at hand at the moment, and I don't think that it would be helpful for your use case.
For global data, there is also the "/Library" hierarchy.. But normal users don't have access to this place, so your game would need to ask for admin rights, which will make everything much more complicated, and this will feel user-unfriendly to macOS users. The macOS way is to have a self-contained application bundle and put all user-specific or temporary data into the appropriate place within the users home folder.
I am trying to give myself root access to all the file in this folder and not have to sudo everything I want to run a command.
The file I am concerned with is pro
When I enter ls -l I get :
drwxr-xr-x+ 12 Guest _guest 384 13 Jan 14:56 Guest
drwxrwxrwt 9 root wheel 288 13 Jan 14:30 Shared
drwxr-xr-x+ 148 Santi staff 4736 1 Apr 17:13 pro
then I enter chmod 775 pro/
It doesnt seem to change the permssions. What can I do to fix this or why is the folder restricting permission even though I appear to be root?
drwxr-xr-x+ ...
the final + means that the file is governed by acl
see
apropos acl : give you the mans to consult
wikipedia
Access Control Lists on Arch wiki
I am attempting to write a script that changes my desktop wallpaper to the next picture in my ~\Picture\Wallpapers directory. I have already created a script, change_wallpaper, which can change my desktop background to any given picture.
My plan was to list all the pictures in ~\Picture\Wallpapers as an array, find the index i of the current wallpaper, and apply change_wallpaper to the i+1 element of the array of pictures. My only issue is finding a way to story the index of the current wallpaper. I could create a file which contains this value, but it seems really inelegant to just have a text file with the number 12, for example, saved somewhere in my home directory.
Is there a better way?
I agree with the general consensus of using a file to store the index of the current wallpaper. A slightly more elegant way would be to put a "." (dot) in front of the file name to keep it hidden in the directory where your script is located. Something like:
admin#myHost:/home/admin$ ls -la
total 6200
drwxrwxr-x 4 admin admin 4096 Jul 02 15:41 .
drwxr-xr-x 71 bin bin 4096 Jun 29 12:43 ..
-rw------- 1 admin admin 3939 Jun 29 16:02 .bash_history
-rw-r--r-- 1 admin admin 21 Nov 04 2014 .bashrc
-rwxr-x--x 1 admin admin 259 Oct 13 2014 .profile
-rw------- 1 admin admin 3939 Jun 29 16:02 .wallpaper_index
-rw------- 1 admin admin 3939 Jun 29 16:02 change_wallpaper
There are countless linux and unix applications that do this.
I want to back up all the hidden files and directories in my homedir using rsync, but not the non-hidden files and directories.
For example, given this directory listing:
drwxr-xr-x 7 sophie sophie 238 31 Mar 08:45 .
drwxr-xr-x 15 sophie sophie 510 31 Mar 08:14 ..
-rw-r--r-- 1 sophie sophie 4 31 Mar 08:12 .foo
drwxr-xr-x 3 sophie sophie 102 31 Mar 08:45 .hiddendir
drwxr-xr-x 4 sophie sophie 136 31 Mar 08:13 VisibleDirectory
-rw-r--r-- 1 sophie sophie 9 31 Mar 08:13 VisibleFile
I want to back up .foo, .hiddendir, and all the contents of .hiddendir whether they are hidden or not. I don't want to back up VisibleDirectory or VisibleFile.
All the incantations I have come up with back up ".", and therefore all its contents including VisibleFile and VisibleDirectory, and I can't figure out how to exclude it. Please help!
I'm using Mac OS X 10.5.6 (Leopard) and rsync version 2.6.9 protocol version 29.
A common pattern to match the hidden items is .[^.]*
rsync -a ~/.[^.]* /path/to/backup
This copies all files starting with a single dot. Note that it doesn't include files starting with more than one dot.
It's usually ".??*" to make sure you don't copy "." and ".."
(What if you had a file that was just ".a" ?)
Have you tried incarnations like ./.*?
Could you copy the hidden files to a temp directory, back up the temp directory, then remove it?