Using a chroot

If you want to run web tests and you‘re not running Lucid, you’ll get errors due to version differences in libfreetype. To work around this, you can use a chroot.

Basic Instructions

• Runbuild/install-chroot.sh. On the prompts, choose to install a 64-bit Lucid chroot and activate all your secondary mount points.
• sudo edit/etc/schroot/mount-lucid64bit and uncomment/run and/run/shm. Verify that your mount points are correct and uncommented: for example, if you have a second hard drive at/src, you should have an entry like/src /src none rw,bind 0 0.
• Enter your chroot as root withsudo schroot -c lucid64. Runbuild /install-build-deps.sh, then exit the rooted chroot.
• Delete your out/ directory if you had a previous non-chrooted build.
• To enter your chroot as normal user, runschroot -c lucid64.
• Now compile and run DumpRenderTree within chroot.

Tips and Tricks

NFS home directories

The chroot install will be installed by default in /home/$USER/chroot. If your home directory is inaccessible by root (typically because it is mounted on NFS), then move this directory onto your local disk and change the corresponding entry in/etc/schroot/mount-lucid64bit.

Reclient builds

If you get mysterious compile errors (glibconfig.h or dbus header error), don't use reclient for builds inside the chroot.

Different color prompt

I use the following code in my .zshrc file to change the color of my prompt in the chroot.

# load colorsautoload colors zsh/terminfoif[["$terminfo[colors]"-ge8]];then  colorsfifor colorin RED GREEN YELLOW BLUE MAGENTA CYAN WHITE;doeval PR_$color='%{$terminfo[bold]$fg[${(L)color}]%}'eval PR_LIGHT_$color='%{$fg[${(L)color}]%}'donePR_NO_COLOR="%{$terminfo[sgr0]%}"# set variable identifying the chroot you work in (used in the prompt below)if[-z"$debian_chroot"]&&[-r/etc/debian_chroot];then  debian_chroot=$(cat/etc/debian_chroot)fiif["xlucid64"="x$debian_chroot"];then    PS1="%n@$PR_GREEN% lucid64$PR_NO_COLOR %~ %#"else    PS1="%n@$PR_RED%m$PR_NO_COLOR %~ %#"fi

Running X apps

I also haveDISPLAY=:0 in my$debian_chroot section so I can run test_shell or web tests without manually setting my display every time. Your display number may vary (echo $DISPLAY outside the chroot to see what your display number is).

You can also useXvfb if you only want torun tests headless.

Having web test results open in a browser

After running web tests, you should get a new browser tab or window that opens results.html. If you get an error "Failed to openfile:///path/to/results.html, check the following conditions.

1. Make sureDISPLAY is set. See theRunning X apps section above.
2. Installxdg-utils, which includesxdg-open, a utility for finding the right application to open a file or URL with.
3. InstallChrome.