Is there an elegant way of converting ZIP files to DMG?
I would avoid to expand the (many) files manually and then to repack'em to a DMG.
Could that be done via terminal, maybe in a single step?
There is an app called DropDMG that lets you convert between file types. The description on the website claims you go from .zip to a dmg file. The app is not free but they have a free trail available that may work for you.
A terminal command that might work is hdiutil.
hdiutil create -format UDZO -srcfolder folder_to_compress archive_name.dmg
I just tried this on a .zip file and it worked. But note that when I launch the .dmg file I just get the .zip file back.
You could also write a two line script. First line is to unzip the zip file and then use the hdiutil command to make a dmg from the expanded files.
Related
I am zipping the .xctest file from Plugins folder inside the .app target generated by building my app. I have a build phase script that runs last in my test target to copy this file over. I use the following script to do the zipping:
XCTEST_FILE=${TARGET_BUILD_DIR}/${TARGET_NAME}.xctest
XCTEST_ZIP=${TARGET_BUILD_DIR}/../../${TARGET_NAME}.xctest.zip
zip -jr ${XCTEST_ZIP} ${XCTEST_FILE}
This gives me TestTarget.xctest.zip file. But it unzips differently based on these 2 methods,
unzip TestTarget.xctest.zip
-TestTarget
-CodeResources
-Info.plist
Double clicking TestTarget.xctest.zip in finder
-TestTarget.xctest
--TestTarget
--CodeResources
--Info.plist
Why is unzip going to the innermost node and extracting all the files? I want the unzip command to give me the .xctest directory. I tried renaming the zip file to TestTarget.zip and it still behaves similarly.
I was initially zipping using zip -r ${XCTEST_ZIP} ${XCTEST_FILE}, but the problem with this was it would retain the entire folder structure from root (\) when I double clicked to unzip the file. A post recommend using the -j flag instead of -r. But just -j led to no zip file being generated. Another comment recommend -jr which created a zip that generated output I expected when double clicking it. But I guess the unzip command does stuff differently.
Similar Question: MacOs zip file - different result when double click and running unzip command
The cause for error here was very different,
The problem was when the file was created. It was not related to MacOs issue but with certain path length known issue in windows
Based on How to zip folder without full path, I had to update my script to first cd into the TARGET_BUILD_DIR before generating the zip. I also had to remove the -j flag so the local folder structure was retained on running unzip.
cd ${TARGET_BUILD_DIR}
XCTEST_FILE=./${TARGET_NAME}.xctest
XCTEST_ZIP=../../${TARGET_NAME}.xctest.zip
zip -r ${XCTEST_ZIP} ${XCTEST_FILE}
I got a .zip file from my friend and it was compressed under windows, which contains three subfolders inside of it, and when I check the contents of it on my Mac terminal it looks like this:
Now I unzip this file and then zip it through terminal, and when I check the contents of that zip file it becomes like this:
I have googled how to zip on mac without creating a subfolder with same name but none of them solves the problem, my question is how to do the zip on Mac which makes the zip file looks exactly same with the initial one I got.
Thanks very very much
New edit:
I think I might did not do very well to summarize my problem, so the initial folder contains three sub-folders and all of them were created in windows environment and compressed on windows, when I tried to unzip it on my MacOS machine, the unzipped folder looks still good but when I do the compression on Mac and then view the .zip file through unzip -l xxxx.zip, it is giving me 6 files in which the three sub-folders are also treated as files. Based on my knowledge this is because in BSD systems all the folders are treated as files but in windows they are not, what I'm currently doing is to delete all these files that represent folders through "zip -d", which I know is very silly. I would be more than happy to talk about this from an operating system view with anybody who is interested in it. Thanks in advance.
For me this command works fine:
zip -j zippedFolder.zip myFolder/*
To unzip I used
unzip zippedFolder.zip
and I've got only the data from the folder.
Example: The folder I want to zip is on the desktop and he's called testFolder.
Open Terminal
cd /Users/yourUser/Desktop
zip -f myZip.zip testFolder/*
I can do the command:
unzip some-zip.zip
and it will produce a some-zip folder.
I don't want a default folder name, but to create my own. Nor do I want to do a mv after.
I don't see a command line option to handle this. Can I accomplish this easily with redirection (if indeed no command line option)? If so, will that work efficiently for a fairly large zip file (52 MB)?
Thanks
unzip file.zip -d destination_folder
Compressing a folder into a .zip file is a common way to treat a folder as file, for example, uploading a folder. Is there a faster way to "pack" the contents of a folder into a file (without taking the time to compress)?
You should use a tarfile. In unix or mac, its the tar command. On Windows there is a tool called 7-zip.
You can see more details here.
How to extract content of DMG without mounting it?
I want add autoupdate system to my application. It downloads DMG from website, then extract new version of application from it.
Some .dmg files can be extracted by using 7-zip.
$ 7z x your.dmg
$ ls
your.dmg
0.MBR
1.Primary GPT Header
2.Primary GPT Table
3.free
4.hfs
5.free
6.Backup GPT Table
7.Backup GPT Header
...and after extracted the 4.hfs file:
$ 7z x 4.hfs
...you'll get the content of the .dmg file.
You could also mount the .dmg in Mac OS X using hdiutil command (which is also used by Homebrew Cask).
Please refer to this Ask Ubuntu question for more use cases on Linux.
Dmg is just a format used for MacOS. It's a not compressed file format like zip or tar.gz
You have several choices to mount it. Here are some options.
Double click on it to mount it.
Use hdiutil attach your.dmg to mount the dmg file. After mounting on it,
operating your command line to extract the files you want out.
Doing that is working counter to the design of DMGs, so it's very painful. DMGs are designed to be mounted, that is their whole raison d'être. You would need to rely on experimental code if you wanted to do something like that. You are probably better served by using a non-DMG archive such as a zip file, or by making your automatic updating process download, mount, and unmount the DMG file you provide.