ci: Be consistent about install path

Make both LAVA and bare-metal untar into $CI_PROJECT_DIR/install/, and
symlink /install/ to it during init.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Acked-by: Martin Peres <martin.peres@mupuf.org>
Acked-by: Emma Anholt <emma@anholt.net>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11337>

.gitlab-ci/bare-metal/rootfs-setup.sh

@@ -21,4 +21,3 @@ set -x
 # Add the Mesa drivers we built, and make a consistent symlink to them.
 mkdir -p $rootfs_dst/$CI_PROJECT_DIR
 rsync -aH --delete $CI_PROJECT_DIR/install/ $rootfs_dst/$CI_PROJECT_DIR/install/
-ln -sf $CI_PROJECT_DIR/install $rootfs_dst/install

.gitlab-ci/common/init.sh

@@ -21,6 +21,10 @@ for i in 1 2 3; do sntp -sS pool.ntp.org && break || sleep 2; done || true
 # Set up any devices required by the jobs
 [ -z "$HWCI_KERNEL_MODULES" ] || (echo -n $HWCI_KERNEL_MODULES | xargs -d, -n1 /usr/sbin/modprobe)
 
+# Fix prefix confusion: the build installs to $CI_PROJECT_DIR, but we expect
+# it in /install
+ln -sf $CI_PROJECT_DIR/install /install
+
 # Store Mesa's disk cache under /tmp, rather than sending it out over NFS.
 export XDG_CACHE_HOME=/tmp
 

.gitlab-ci/lava/lava.yml.jinja2

@@ -82,11 +82,11 @@ actions:
           - echo "$NFS_SERVER_IP caching-proxy" >> /etc/hosts
           - for i in 1 2 3; do sntp -sS pool.ntp.org && break || sleep 2; done
 
-          - wget -S --progress=dot:giga -O- {{ mesa_build_url }} | tar -xz
+          - mkdir -p $CI_PROJECT_DIR
+          - wget -S --progress=dot:giga -O- {{ mesa_build_url }} | tar -xz -C $CI_PROJECT_DIR
           - wget -S --progress=dot:giga -O- {{ job_rootfs_overlay_url }} | tar -xz -C /
           - . /set-job-env-vars.sh
-          - mkdir -p $CI_PROJECT_DIR
-          - ln -sf /install $CI_PROJECT_DIR/install
+          - ln -sf $CI_PROJECT_DIR/install /install
 
           # Set up our devices
           - '[ -z "$HWCI_KERNEL_MODULES" ] || (echo -n $HWCI_KERNEL_MODULES | xargs -d, -n1 /usr/sbin/modprobe)'