For Rails, we can install Ruby and Node.js for our frontend Javascript. Then we can install ASDF plugins for each language we want to use. "$HOME/.asdf/completions/asdf.bash"' > ~/.bashrcĮcho 'legacy_version_file = yes' > ~/.asdfrcĮcho 'export EDITOR="code -wait"' > ~/.bashrc First you install asdf, and then add it to your shell:Įcho '. Installing asdf is a simple two step process. The reason we use ASDF over rbenv, rvm or others is that ASDF can manage other languages like Node.js too. Next we're going to be installing Ruby using a version manager called ASDF. Sudo apt-get install git-core zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev software-properties-common libffi-dev Open your Terminal and run the following commands to install them. Let's download the same image using Down.The first step is to install dependencies for compiling Ruby. It allows you to avoid these issues to safely and efficiently download files. To solve all of this, Janko created the Down gem. doesn't let you limit redirects or file size.
sometimes returns a Tempfile other times StringIO.
Janko Marohnić discovered a bunch of these issues while working on Shrine. It also turns out that open-uri has some other quirks. First up, the above code is not very memory efficient, it loads the entire image into memory and then writes to disk. The thing is, using open-uri like this is not ideal. Plus, there's a bunch of other potential issues with using open-uri. In practice you would want to handle potential errors, such as a 404 error for a missing image. This is a success, but this was a straightforward example. In the directory in which you opened IRB you will now find the image you downloaded.
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