3 files changed, 108 insertions, 0 deletions
diff --git a/testing/docker/desktop-build/bin/build.sh b/testing/docker/desktop-build/bin/build.sh
new file mode 100644
index 000000000..b7e1502a9
--- /dev/null
+++ b/testing/docker/desktop-build/bin/build.sh
@@ -0,0 +1,36 @@
+#! /bin/bash -vex
+
+set -x -e -v
+
+# Relative path to in-tree script
+: JOB_SCRIPT                ${JOB_SCRIPT:=taskcluster/scripts/builder/build-linux.sh}
+
+script_args="${@}"
+
+# TODO: when bug 1093833 is solved and tasks can run as non-root, reduce this
+# to a simple fail-if-root check
+if [ $(id -u) = 0 ]; then
+    # each of the caches we have mounted are owned by root, so update that ownership
+    # to 'worker'
+    for cache in /home/worker/.tc-vcs /home/worker/workspace /home/worker/tooltool-cache; do
+        if [ -d $cache ]; then
+            # -R probably isn't necessary forever, but it fixes some poisoned
+            # caches for now
+            chown -R worker:worker $cache
+        fi
+    done
+
+    # ..then drop privileges by re-running this script
+    exec su worker -c "/home/worker/bin/build.sh $script_args"
+fi
+
+####
+# The default build works for any fx_desktop_build based mozharness job:
+# via build-linux.sh
+####
+
+. $HOME/bin/checkout-sources.sh
+
+script=$WORKSPACE/build/src/$JOB_SCRIPT
+chmod +x $script
+exec $script $script_args
diff --git a/testing/docker/desktop-build/bin/checkout-script.sh b/testing/docker/desktop-build/bin/checkout-script.sh
new file mode 100644
index 000000000..2bacf3f01
--- /dev/null
+++ b/testing/docker/desktop-build/bin/checkout-script.sh
@@ -0,0 +1,17 @@
+#! /bin/bash -vex
+
+set -x -e
+
+# Inputs, with defaults
+
+: GECKO_HEAD_REPOSITORY              ${GECKO_HEAD_REPOSITORY:=https://hg.mozilla.org/mozilla-central}
+: GECKO_HEAD_REV                ${GECKO_HEAD_REV:=default}
+
+: SCRIPT_DOWNLOAD_PATH          ${SCRIPT_DOWNLOAD_PATH:=$PWD}
+: SCRIPT_PATH                   ${SCRIPT_PATH:?"script path must be set"}
+set -v
+
+# download script from the gecko repository
+url=${GECKO_HEAD_REPOSITORY}/raw-file/${GECKO_HEAD_REV}/${SCRIPT_PATH}
+wget --directory-prefix=${SCRIPT_DOWNLOAD_PATH} $url
+chmod +x `basename ${SCRIPT_PATH}`
diff --git a/testing/docker/desktop-build/bin/checkout-sources.sh b/testing/docker/desktop-build/bin/checkout-sources.sh
new file mode 100644
index 000000000..9080472bc
--- /dev/null
+++ b/testing/docker/desktop-build/bin/checkout-sources.sh
@@ -0,0 +1,55 @@
+#! /bin/bash -vex
+
+set -x -e
+
+# Inputs, with defaults
+
+# mozharness builds use two repositories: gecko (source)
+# and build-tools (miscellaneous) for each, specify *_REPOSITORY.  If the
+# revision is not in the standard repo for the codebase, specify *_BASE_REPO as
+# the canonical repo to clone and *_HEAD_REPO as the repo containing the
+# desired revision.  For Mercurial clones, only *_HEAD_REV is required; for Git
+# clones, specify the branch name to fetch as *_HEAD_REF and the desired sha1
+# as *_HEAD_REV.
+
+: GECKO_REPOSITORY              ${GECKO_REPOSITORY:=https://hg.mozilla.org/mozilla-central}
+: GECKO_BASE_REPOSITORY         ${GECKO_BASE_REPOSITORY:=${GECKO_REPOSITORY}}
+: GECKO_HEAD_REPOSITORY         ${GECKO_HEAD_REPOSITORY:=${GECKO_REPOSITORY}}
+: GECKO_HEAD_REV                ${GECKO_HEAD_REV:=default}
+: GECKO_HEAD_REF                ${GECKO_HEAD_REF:=${GECKO_HEAD_REV}}
+
+: TOOLS_REPOSITORY              ${TOOLS_REPOSITORY:=https://hg.mozilla.org/build/tools}
+: TOOLS_BASE_REPOSITORY         ${TOOLS_BASE_REPOSITORY:=${TOOLS_REPOSITORY}}
+: TOOLS_HEAD_REPOSITORY         ${TOOLS_HEAD_REPOSITORY:=${TOOLS_REPOSITORY}}
+: TOOLS_HEAD_REV                ${TOOLS_HEAD_REV:=default}
+: TOOLS_HEAD_REF                ${TOOLS_HEAD_REF:=${TOOLS_HEAD_REV}}
+: TOOLS_DISABLE                 ${TOOLS_DISABLE:=false}
+
+: WORKSPACE                     ${WORKSPACE:=/home/worker/workspace}
+
+set -v
+
+# check out tools where mozharness expects it to be ($PWD/build/tools and $WORKSPACE/build/tools)
+if [ ! "$TOOLS_DISABLE" = true ]
+then
+    tc-vcs checkout $WORKSPACE/build/tools $TOOLS_BASE_REPOSITORY $TOOLS_HEAD_REPOSITORY $TOOLS_HEAD_REV $TOOLS_HEAD_REF
+
+    if [ ! -d build ]; then
+        mkdir -p build
+        ln -s $WORKSPACE/build/tools build/tools
+    fi
+fi
+
+# TODO - include tools repository in EXTRA_CHECKOUT_REPOSITORIES list
+for extra_repo in $EXTRA_CHECKOUT_REPOSITORIES; do
+    BASE_REPO="${extra_repo}_BASE_REPOSITORY"
+    HEAD_REPO="${extra_repo}_HEAD_REPOSITORY"
+    HEAD_REV="${extra_repo}_HEAD_REV"
+    HEAD_REF="${extra_repo}_HEAD_REF"
+    DEST_DIR="${extra_repo}_DEST_DIR"
+
+    tc-vcs checkout ${!DEST_DIR} ${!BASE_REPO} ${!HEAD_REPO} ${!HEAD_REV} ${!HEAD_REF}
+done
+
+export GECKO_DIR=$WORKSPACE/build/src
+tc-vcs checkout $GECKO_DIR $GECKO_BASE_REPOSITORY $GECKO_HEAD_REPOSITORY $GECKO_HEAD_REV $GECKO_HEAD_REF