Programming
30 articles
How to create symbolic links via FTP
Spoiler: you cannot!
In order to use Laravel File Storage utility, I had to create a symlink in the public folder pointing to a subfolder located in the... storage folder. That is nice and easy when you can ssh to your production server. However, it is a whole other story if you only have FTP access!
So the solution was to let PHP do the work for me, by using the handy symlink function:
if (!file_exists('./storage')) {
symlink("../storage/app/public", "./storage");
}
Insert a line in the middle of an existing configuration file
Playing with Testing a new piece of software using a Vagrant box, I created a vagrant-install.sh in which I had to insert the line sql-mode=NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
inside an existing MySQL config file. I had to put it inside a specific section, so I targeted a line starting with datadir
.
The following sed command will add the new line above it. It will update the config file by using a temporary intermediate file.
sed -n 'H;${x;s/^\n//;s/datadir.*$/sql-mode=NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION\n&/;p;}' /your/file.cnf > tmp && mv tmp /your/file.cnf
Accessing your application database from Android Studio
Open the Terminal window (Alt + F12) or:
Then list your devices with the adb
command. This will display both running emulators and connected devices:
$ adb devices
List of devices attached
emulator-5554 device
Use the device name to open a connection:
$ adb -s emulator-5554 shell
generic_x86:/ $
To avoid a Permission denied error while trying to access your application files, use the run-as
command:
generic_x86:/ $ run-as com.your.package.example sqlite3 databases/yourdatabase.db
Accessing your application files from Android Studio
While learning to play with SQLite databases in Android, I wanted to check the .db
file generated by my code in the emulator. I was unable to find it directly with the built-in Files application because it doesn't let us see system folders.
Fortunately, Android Studio 3+ comes with the Device File Explorer, which allows us to browse system files and access the root data folder. To open it, go to View > Tool Windows > Device File Explorer. My application data was stored in /data/data/
.
How to see the data stored in sqlite in android studio using genymotion as emulator
[Git] List the files which have been modified between two commits/tags
I needed to know the exact list of files that had been modified between my last two tags:
git diff --name-only v2.0.0 v2.0.1
You can replace the tags by commits:
git diff --name-only SHA1 SHA2
git diff --name-only HEAD~10 HEAD~5