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Enter_chroot: Mount chrome browser source inside chroot.

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If one passes --chrome_root=.../path/to/chrome_root/outside/chroot to
enter_chroot.sh once, enter_chroot will make a note inside the croot
and mount it on all subsequent calls to enter_chroot, even if the
argument is not passed again. If ever enter_chroot can't find the
proper dir, it deletes any stored note.

chrome_root must contain a "src" subdirectory.

Review URL: http://codereview.chromium.org/596102
This commit is contained in:
Andrew de los Reyes 2010-02-12 14:36:08 -08:00
parent 18ff72b913
commit 6d0ca16277
1 changed files with 25 additions and 0 deletions
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25
enter_chroot.sh
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@ -22,6 +22,8 @@ DEFINE_string trunk "$GCLIENT_ROOT" \
"The source trunk to bind mount within the chroot." "s"
DEFINE_string build_number "" \
"The build-bot build number (when called by buildbot only)." "b"
DEFINE_string chrome_root "" \
"The root of your chrome browser source. Should contain a 'src' subdir."
DEFINE_boolean official_build $FLAGS_FALSE "Set CHROMEOS_OFFICIAL=1 for release builds."
DEFINE_boolean mount $FLAGS_FALSE "Only set up mounts."
@ -59,6 +61,9 @@ fi
# TODO: replace shflags with something less error-prone, or contribute a fix.
set -e
INNER_CHROME_ROOT="/home/$USER/chrome_root" # inside chroot
CHROME_ROOT_CONFIG="/var/cache/chrome_root" # inside chroot
sudo chmod 0777 "$FLAGS_chroot/var/lock"
LOCKFILE="$FLAGS_chroot/var/lock/enter_chroot"
@ -88,6 +93,26 @@ function setup_env {
then
sudo mount --bind "$FLAGS_trunk" "$MOUNTED_PATH"
fi
MOUNTED_PATH="$(readlink -f "${FLAGS_chroot}${INNER_CHROME_ROOT}")"
if [ -z "$(mount | grep -F "on $MOUNTED_PATH")" ]
then
CHROME_ROOT="$FLAGS_chrome_root"
if [ -z "$CHROME_ROOT" ]; then
! CHROME_ROOT="$(cat "${FLAGS_chroot}${CHROME_ROOT_CONFIG}" \
2>/dev/null)"
fi
if [[ ( -z "$CHROME_ROOT" ) || ( ! -d "${CHROME_ROOT}/src" ) ]]; then
echo "Not mounting chrome source"
sudo rm -f "${FLAGS_chroot}${CHROME_ROOT_CONFIG}"
else
echo "Mounting chrome source at: $INNER_CHROME_ROOT"
echo "$CHROME_ROOT" | \
sudo dd of="${FLAGS_chroot}${CHROME_ROOT_CONFIG}"
mkdir -p "$MOUNTED_PATH"
sudo mount --bind "$CHROME_ROOT" "$MOUNTED_PATH"
fi
fi
) 200>>"$LOCKFILE"
}