Sleeyax sleeyax

As Gecko is moving toward more Rust code, the cases where Rust and C code interoperate will become more common.

This document is an attempt to ease the learning curve for engineers facing it for the first time. It assumes no prior experience with cross-language C interfaces (called FFI).

It also assumes that Rust code is already built into Gecko. If you need help with that, read Introducing Rust code in Firefox.

What can you transfer across the fence

Backup android app, data included, no root needed, with adb

Note: This gist may be outdated, thanks to all contributors in comments.

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

You need spice-vdagent

Debian or Kali Linux installed to as KVM (libvirtd) guests do not automatically have qemu-guest-agent or spice-vdagent installed. This will prevent seamless movement of the mouse cursor between the guest and host desktop in Virtual Machine Manager (requiring the use of a Ctrl-Alt to release the cursor from the guest window).

To cure this, install both qemu-guest-agent and spice-vdagent on each guest and reboot (the guests).

$ sudo apt install qemu-guest-agent
$ sudo apt install spice-vdagent

How to build an old chromium revision by MSVC 2013

Visual Studio Express 2013 is not supported

Valid for branches before March 11, 2016 (chromium revision 49.0.2623.87)

Setup enviroment variables
- DEPOT_TOOLS_UPDATE=0
- DEPOT_TOOLS_WIN_TOOLCHAIN=0
- GYP_MSVS_VERSION=2013
GYP_GENERATORS=msvs-ninja,ninja

Conventional Commit Messages

See how a minor change to your commit message style can make a difference.

git commit -m"<type>(<optional scope>): <description>" \
  -m"<optional body>" \
  -m"<optional footer>"

How to use `<details>` `<summary>` expandable content on GitHub with Markdown

Firstly, what is <details> <summary>?

The HTML Details Element (<details>) creates a disclosure widget in which information is visible only when the widget is toggled into an "open" state. A summary or label can be provided using the <summary> element. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details.

Example

Set KUBE_EDITOR to Visual Studio Code, assumes 'code' is in PATH

export KUBE_EDITOR='code --wait'

Running k edit ... will open up the yaml using Visual Studio Code.

How to add a collapsible section in markdown

1. Example

Click me

Heading

Foo
Bar
- Baz

Qux

	sudo vim /etc/fstab

	# Comment out lines that have the word swap on them

	sudo reboot