6 files changed, 593 insertions, 0 deletions
diff --git a/taskcluster/scripts/builder/build-haz-linux.sh b/taskcluster/scripts/builder/build-haz-linux.sh
new file mode 100755
index 0000000000..b8253037bf
--- /dev/null
+++ b/taskcluster/scripts/builder/build-haz-linux.sh
@@ -0,0 +1,184 @@
+#!/bin/bash -ex
+
+function usage() {
+    echo "Usage: $0 [--project <js|browser>] <workspace-dir> flags..."
+    echo "flags are treated the same way as a commit message would be"
+    echo "(as in, they are scanned for directives just like a try: ... line)"
+}
+
+PROJECT=js
+WORKSPACE=
+while [[ $# -gt 0 ]]; do
+    if [[ "$1" == "-h" ]] || [[ "$1" == "--help" ]]; then
+        usage
+        exit 0
+    elif [[ "$1" == "--project" ]]; then
+        shift
+        PROJECT="$1"
+        shift
+    elif [[ "$1" == "--no-tooltool" ]]; then
+        shift
+    elif [[ -z "$WORKSPACE" ]]; then
+        WORKSPACE=$( cd "$1" && pwd )
+        shift
+        break
+    fi
+done
+
+function check_commit_msg () {
+    ( set +e;
+    if [[ -n "$AUTOMATION" ]]; then
+        hg --cwd "$GECKO_PATH" log -r. --template '{desc}\n' | grep -F -q -- "$1"
+    else
+        echo -- "$SCRIPT_FLAGS" | grep -F -q -- "$1"
+    fi
+    )
+}
+
+if check_commit_msg "--dep"; then
+    HAZ_DEP=1
+fi
+
+SCRIPT_FLAGS=$*
+
+ANALYSIS_DIR="$WORKSPACE/haz-$PROJECT"
+
+# Ensure all the scripts in this dir are on the path....
+DIRNAME=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+PATH=$DIRNAME:$PATH
+
+# Use GECKO_BASE_REPOSITORY as a signal for whether we are running in automation.
+export AUTOMATION=${GECKO_BASE_REPOSITORY:+1}
+
+: "${GECKO_PATH:="$DIRNAME"/../../..}"
+
+if ! [ -d "$GECKO_PATH" ]; then
+    echo "GECKO_PATH must be set to a directory containing a gecko source checkout" >&2
+    exit 1
+fi
+
+# Directory to hold the compiled JS shell that will run the analysis.
+HAZARD_SHELL_OBJDIR=$WORKSPACE/obj-haz-shell
+
+export NO_MERCURIAL_SETUP_CHECK=1
+
+if [[ "$PROJECT" = "browser" ]]; then (
+    cd "$WORKSPACE"
+    set "$WORKSPACE"
+    # Mozbuild config:
+    export MOZBUILD_STATE_PATH=$WORKSPACE/mozbuild/
+    # Create .mozbuild so mach doesn't complain about this
+    mkdir -p "$MOZBUILD_STATE_PATH"
+) fi
+
+# Build the shell
+export HAZARD_SHELL_OBJDIR # This will be picked up by mozconfig.haz_shell.
+$GECKO_PATH/mach hazards build-shell
+
+# Run a self-test
+$GECKO_PATH/mach hazards self-test --shell-objdir="$HAZARD_SHELL_OBJDIR"
+
+# Artifacts folder is outside of the cache.
+mkdir -p "$HOME"/artifacts/ || true
+
+function grab_artifacts () {
+    local artifacts
+    artifacts="$HOME/artifacts"
+
+    [ -d "$ANALYSIS_DIR" ] && (
+        cd "$ANALYSIS_DIR"
+        ls -lah
+
+        # Do not error out if no files found
+        shopt -s nullglob
+        set +e
+        local important
+        important=(refs.txt unnecessary.txt hazards.txt gcFunctions.txt allFunctions.txt heapWriteHazards.txt rootingHazards.json hazards.html)
+
+        # Bundle up the less important but still useful intermediate outputs,
+        # just to cut down on the clutter in treeherder's Job Details pane.
+        tar -acvf "${artifacts}/hazardIntermediates.tar.xz" --exclude-from <(IFS=$'\n'; echo "${important[*]}") *.txt *.lst build_xgill.log
+
+        # Upload the important outputs individually, so that they will be
+        # visible in Job Details and accessible to automated jobs.
+        for f in "${important[@]}"; do
+            gzip -9 -c "$f" > "${artifacts}/$f.gz"
+        done
+
+        # Check whether the user requested .xdb file upload in the top commit comment
+        if check_commit_msg "--upload-xdbs"; then
+            HAZ_UPLOAD_XDBS=1
+        fi
+
+        if [ -n "$HAZ_UPLOAD_XDBS" ]; then
+            for f in *.xdb; do
+                xz -c "$f" > "${artifacts}/$f.bz2"
+            done
+        fi
+    )
+}
+
+function check_hazards () {
+    (
+    set +e
+    NUM_HAZARDS=$(grep -c 'Function.*has unrooted.*live across GC call' "$1"/hazards.txt)
+    NUM_UNSAFE=$(grep -c '^Function.*takes unsafe address of unrooted' "$1"/refs.txt)
+    NUM_UNNECESSARY=$(grep -c '^Function.* has unnecessary root' "$1"/unnecessary.txt)
+    NUM_DROPPED=$(grep -c '^Dropped CFG' "$1"/build_xgill.log)
+    NUM_WRITE_HAZARDS=$(perl -lne 'print $1 if m!found (\d+)/\d+ allowed errors!' "$1"/heapWriteHazards.txt)
+    NUM_MISSING=$(grep -c '^Function.*expected hazard.*but none were found' "$1"/hazards.txt)
+
+    set +x
+    echo "TinderboxPrint: rooting hazards<br/>$NUM_HAZARDS"
+    echo "TinderboxPrint: (unsafe references to unrooted GC pointers)<br/>$NUM_UNSAFE"
+    echo "TinderboxPrint: (unnecessary roots)<br/>$NUM_UNNECESSARY"
+    echo "TinderboxPrint: missing expected hazards<br/>$NUM_MISSING"
+    echo "TinderboxPrint: heap write hazards<br/>$NUM_WRITE_HAZARDS"
+
+    # Display errors in a way that will get picked up by the taskcluster scraper.
+    perl -lne 'print "TEST-UNEXPECTED-FAIL | hazards | $1 $2" if /^Function.* has (unrooted .*live across GC call).* (at .*)$/' "$1"/hazards.txt
+
+    exit_status=0
+
+    if [ $NUM_HAZARDS -gt 0 ]; then
+        echo "TEST-UNEXPECTED-FAIL | hazards | $NUM_HAZARDS rooting hazards detected" >&2
+        echo "TinderboxPrint: documentation<br/><a href='https://wiki.mozilla.org/Javascript:Hazard_Builds#Diagnosing_a_rooting_hazards_failure'>static rooting hazard analysis failures</a>, visit \"Inspect Task\" link for hazard details"
+        exit_status=1
+    fi
+
+    if [ $NUM_MISSING -gt 0 ]; then
+        echo "TEST-UNEXPECTED-FAIL | hazards | $NUM_MISSING expected hazards went undetected" >&2
+        echo "TinderboxPrint: documentation<br/><a href='https://wiki.mozilla.org/Javascript:Hazard_Builds#Diagnosing_a_rooting_hazards_failure'>static rooting hazard analysis failures</a>, visit \"Inspect Task\" link for hazard details"
+        exit_status=1
+    fi
+
+    NUM_ALLOWED_WRITE_HAZARDS=0
+    if [ $NUM_WRITE_HAZARDS -gt $NUM_ALLOWED_WRITE_HAZARDS ]; then
+        echo "TEST-UNEXPECTED-FAIL | heap-write-hazards | $NUM_WRITE_HAZARDS heap write hazards detected out of $NUM_ALLOWED_WRITE_HAZARDS allowed" >&2
+        echo "TinderboxPrint: documentation<br/><a href='https://wiki.mozilla.org/Javascript:Hazard_Builds#Diagnosing_a_heap_write_hazard_failure'>heap write hazard analysis failures</a>, visit \"Inspect Task\" link for hazard details"
+        exit_status = 1
+    fi
+
+    if [ $NUM_DROPPED -gt 0 ]; then
+        echo "TEST-UNEXPECTED-FAIL | hazards | $NUM_DROPPED CFGs dropped" >&2
+        echo "TinderboxPrint: sixgill unable to handle constructs<br/>$NUM_DROPPED"
+        exit_status=1
+    fi
+
+    if [ $exit_status -ne 0 ]; then
+        exit $exit_status
+    fi
+    )
+}
+
+trap grab_artifacts EXIT
+
+# Gather the information from the source tree by compiling it.
+$GECKO_PATH/mach hazards gather --project=$PROJECT --work-dir="$ANALYSIS_DIR"
+
+# Analyze the collected information.
+$GECKO_PATH/mach hazards analyze --project=$PROJECT --shell-objdir="$HAZARD_SHELL_OBJDIR" --work-dir="$ANALYSIS_DIR"
+
+check_hazards "$ANALYSIS_DIR"
+
+################################### script end ###################################
diff --git a/taskcluster/scripts/builder/build-l10n.sh b/taskcluster/scripts/builder/build-l10n.sh
new file mode 100755
index 0000000000..0a324c7479
--- /dev/null
+++ b/taskcluster/scripts/builder/build-l10n.sh
@@ -0,0 +1,90 @@
+#! /bin/bash -vex
+
+set -x -e
+
+echo "running as" $(id)
+
+####
+# Taskcluster friendly wrapper for performing fx desktop l10n repacks via mozharness.
+# Based on ./build-linux.sh
+####
+
+# Inputs, with defaults
+
+: MOZHARNESS_SCRIPT             ${MOZHARNESS_SCRIPT}
+: MOZHARNESS_CONFIG             ${MOZHARNESS_CONFIG}
+: MOZHARNESS_CONFIG_PATHS       ${MOZHARNESS_CONFIG_PATHS}
+: MOZHARNESS_ACTIONS            ${MOZHARNESS_ACTIONS}
+: MOZHARNESS_OPTIONS            ${MOZHARNESS_OPTIONS}
+
+: TOOLTOOL_CACHE                ${TOOLTOOL_CACHE:=/builds/worker/tooltool-cache}
+
+: MOZ_SCM_LEVEL                 ${MOZ_SCM_LEVEL:=1}
+
+: MOZ_SCM_LEVEL                 ${MOZ_SCM_LEVEL:=1}
+
+: WORKSPACE                     ${WORKSPACE:=/builds/worker/workspace}
+: MOZ_OBJDIR                    ${MOZ_OBJDIR:=$WORKSPACE/obj-build}
+
+set -v
+
+fail() {
+    echo # make sure error message is on a new line
+    echo "[build-l10n.sh:error]" "${@}"
+    exit 1
+}
+
+export MOZ_CRASHREPORTER_NO_REPORT=1
+export TINDERBOX_OUTPUT=1
+
+# test required parameters are supplied
+if [[ -z ${MOZHARNESS_SCRIPT} ]]; then fail "MOZHARNESS_SCRIPT is not set"; fi
+if [[ -z "${MOZHARNESS_CONFIG}" && -z "${EXTRA_MOZHARNESS_CONFIG}" ]]; then fail "MOZHARNESS_CONFIG or EXTRA_MOZHARNESS_CONFIG is not set"; fi
+
+# set up mozharness configuration, via command line, env, etc.
+
+# $TOOLTOOL_CACHE bypasses mozharness completely and is read by tooltool_wrapper.sh to set the
+# cache.  However, only some mozharness scripts use tooltool_wrapper.sh, so this may not be
+# entirely effective.
+export TOOLTOOL_CACHE
+
+export MOZ_OBJDIR
+
+config_path_cmds=""
+for path in ${MOZHARNESS_CONFIG_PATHS}; do
+    config_path_cmds="${config_path_cmds} --extra-config-path ${GECKO_PATH}/${path}"
+done
+
+# support multiple, space delimited, config files
+config_cmds=""
+for cfg in $MOZHARNESS_CONFIG; do
+  config_cmds="${config_cmds} --config ${cfg}"
+done
+
+# if MOZHARNESS_ACTIONS is given, only run those actions (completely overriding default_actions
+# in the mozharness configuration)
+if [ -n "$MOZHARNESS_ACTIONS" ]; then
+    actions=""
+    for action in $MOZHARNESS_ACTIONS; do
+        actions="$actions --$action"
+    done
+fi
+
+# if MOZHARNESS_OPTIONS is given, append them to mozharness command line run
+if [ -n "$MOZHARNESS_OPTIONS" ]; then
+    options=""
+    for option in $MOZHARNESS_OPTIONS; do
+        options="$options --$option"
+    done
+fi
+
+cd /builds/worker
+
+$GECKO_PATH/mach python -- \
+  $GECKO_PATH/testing/${MOZHARNESS_SCRIPT} \
+  ${config_path_cmds} \
+  ${config_cmds} \
+  $actions \
+  $options \
+  --log-level=debug \
+  --work-dir=$WORKSPACE \
diff --git a/taskcluster/scripts/builder/build-linux.sh b/taskcluster/scripts/builder/build-linux.sh
new file mode 100755
index 0000000000..35c54788b4
--- /dev/null
+++ b/taskcluster/scripts/builder/build-linux.sh
@@ -0,0 +1,125 @@
+#! /bin/bash -vex
+
+set -x -e
+
+echo "running as" $(id)
+
+####
+# Taskcluster friendly wrapper for performing fx desktop builds via mozharness.
+####
+
+# Inputs, with defaults
+
+: MOZHARNESS_SCRIPT             ${MOZHARNESS_SCRIPT}
+: MOZHARNESS_CONFIG             ${MOZHARNESS_CONFIG}
+: MOZHARNESS_CONFIG_PATHS       ${MOZHARNESS_CONFIG_PATHS}
+: MOZHARNESS_ACTIONS            ${MOZHARNESS_ACTIONS}
+: MOZHARNESS_OPTIONS            ${MOZHARNESS_OPTIONS}
+
+: TOOLTOOL_CACHE                ${TOOLTOOL_CACHE:=/builds/worker/tooltool-cache}
+
+: MOZ_SCM_LEVEL                 ${MOZ_SCM_LEVEL:=1}
+
+: NEED_XVFB                     ${NEED_XVFB:=false}
+
+: MH_CUSTOM_BUILD_VARIANT_CFG   ${MH_CUSTOM_BUILD_VARIANT_CFG}
+: MH_BRANCH                     ${MH_BRANCH:=mozilla-central}
+: MH_BUILD_POOL                 ${MH_BUILD_POOL:=staging}
+
+: WORKSPACE                     ${WORKSPACE:=/builds/worker/workspace}
+: MOZ_OBJDIR                    ${MOZ_OBJDIR:=$WORKSPACE/obj-build}
+
+set -v
+
+fail() {
+    echo # make sure error message is on a new line
+    echo "[build-linux.sh:error]" "${@}"
+    exit 1
+}
+
+export MOZ_CRASHREPORTER_NO_REPORT=1
+export TINDERBOX_OUTPUT=1
+
+# use "simple" package names so that they can be hard-coded in the task's
+# extras.locations
+export MOZ_SIMPLE_PACKAGE_NAME=target
+
+# test required parameters are supplied
+if [[ -z ${MOZHARNESS_SCRIPT} ]]; then fail "MOZHARNESS_SCRIPT is not set"; fi
+if [[ -z "${MOZHARNESS_CONFIG}" && -z "${EXTRA_MOZHARNESS_CONFIG}" ]]; then fail "MOZHARNESS_CONFIG or EXTRA_MOZHARNESS_CONFIG is not set"; fi
+
+# run XVfb in the background, if necessary
+if $NEED_XVFB; then
+    . /builds/worker/scripts/xvfb.sh
+
+    cleanup() {
+        local rv=$?
+        cleanup_xvfb
+        exit $rv
+    }
+    trap cleanup EXIT INT
+
+    start_xvfb '1024x768x24' 2
+fi
+
+# set up mozharness configuration, via command line, env, etc.
+
+debug_flag=""
+if [ 0$DEBUG -ne 0 ]; then
+  debug_flag='--debug'
+fi
+
+custom_build_variant_cfg_flag=""
+if [ -n "${MH_CUSTOM_BUILD_VARIANT_CFG}" ]; then
+    custom_build_variant_cfg_flag="--custom-build-variant-cfg=${MH_CUSTOM_BUILD_VARIANT_CFG}"
+fi
+
+# $TOOLTOOL_CACHE bypasses mozharness completely and is read by tooltool_wrapper.sh to set the
+# cache.  However, only some mozharness scripts use tooltool_wrapper.sh, so this may not be
+# entirely effective.
+export TOOLTOOL_CACHE
+
+export MOZ_OBJDIR
+
+config_path_cmds=""
+for path in ${MOZHARNESS_CONFIG_PATHS}; do
+    config_path_cmds="${config_path_cmds} --extra-config-path ${GECKO_PATH}/${path}"
+done
+
+# support multiple, space delimited, config files
+config_cmds=""
+for cfg in $MOZHARNESS_CONFIG; do
+  config_cmds="${config_cmds} --config ${cfg}"
+done
+
+# if MOZHARNESS_ACTIONS is given, only run those actions (completely overriding default_actions
+# in the mozharness configuration)
+if [ -n "$MOZHARNESS_ACTIONS" ]; then
+    actions=""
+    for action in $MOZHARNESS_ACTIONS; do
+        actions="$actions --$action"
+    done
+fi
+
+# if MOZHARNESS_OPTIONS is given, append them to mozharness command line run
+if [ -n "$MOZHARNESS_OPTIONS" ]; then
+    options=""
+    for option in $MOZHARNESS_OPTIONS; do
+        options="$options --$option"
+    done
+fi
+
+cd /builds/worker
+
+$GECKO_PATH/mach python -- \
+  $GECKO_PATH/testing/${MOZHARNESS_SCRIPT} \
+  ${config_path_cmds} \
+  ${config_cmds} \
+  $debug_flag \
+  $custom_build_variant_cfg_flag \
+  $actions \
+  $options \
+  --log-level=debug \
+  --work-dir=$WORKSPACE \
+  --branch=${MH_BRANCH} \
+  --build-pool=${MH_BUILD_POOL}
diff --git a/taskcluster/scripts/builder/build-sm-package.sh b/taskcluster/scripts/builder/build-sm-package.sh
new file mode 100755
index 0000000000..816256ea9c
--- /dev/null
+++ b/taskcluster/scripts/builder/build-sm-package.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+set -xe
+
+# Default variables values.
+: ${WORK:=$HOME/workspace}
+
+mkdir -p $UPLOAD_DIR
+
+# Package up the sources into the release tarball.
+AUTOMATION=1 DIST=$UPLOAD_DIR $GECKO_PATH/js/src/make-source-package.py
+
+# Extract the tarball into a new directory in the workspace.
+
+PACKAGE_DIR=$WORK/sm-package
+
+# Do not use -p option because the package directory should not exist.
+mkdir $PACKAGE_DIR
+pushd $PACKAGE_DIR
+
+tar -xvf $UPLOAD_DIR/mozjs-*.tar.*z*
+
+: ${PYTHON3:=python3}
+
+status=0
+(
+    # Build the freshly extracted, packaged SpiderMonkey.
+    cd ./mozjs-*
+    AUTOMATION=1 $PYTHON3 js/src/devtools/automation/autospider.py --skip-tests=checks $SPIDERMONKEY_VARIANT
+) || status=$?
+
+# Copy artifacts for upload by TaskCluster
+cp -rL ./mozjs-*/obj-spider/dist/bin/{js,jsapi-tests,js-gdb.py,libmozjs*} $UPLOAD_DIR
+
+exit $status
diff --git a/taskcluster/scripts/builder/build-sm.sh b/taskcluster/scripts/builder/build-sm.sh
new file mode 100755
index 0000000000..7ee31bbcf4
--- /dev/null
+++ b/taskcluster/scripts/builder/build-sm.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+
+set -x
+
+# Default variables values.
+: ${SPIDERMONKEY_VARIANT:=plain}
+: ${WORK:=$HOME/workspace}
+: ${PYTHON3:=python3}
+
+# Ensure upload dir exists
+mkdir -p $UPLOAD_DIR
+
+# Run the script
+export MOZ_UPLOAD_DIR="$(cd "$UPLOAD_DIR"; pwd)"
+export OBJDIR=$WORK/obj-spider
+AUTOMATION=1 $PYTHON3 $GECKO_PATH/js/src/devtools/automation/autospider.py ${SPIDERMONKEY_PLATFORM:+--platform=$SPIDERMONKEY_PLATFORM} $SPIDERMONKEY_VARIANT
+BUILD_STATUS=$?
+
+# Copy artifacts for upload by TaskCluster.
+upload=${MOZ_JS_UPLOAD_BINARIES_DEFAULT-1}
+# User-provided override switch.
+if [ -n "$MOZ_JS_UPLOAD_BINARIES" ]; then
+    upload=1
+fi
+if [ "$upload" = "1" ]; then
+    (
+        cd "$OBJDIR/dist/bin"
+        zip "$UPLOAD_DIR/target.jsshell.zip" {js,jsapi-tests,js-gdb.py,libnspr4.so,libplds4.so,libplc4.so}
+    )
+    cp -L "$OBJDIR/mozinfo.json" "$UPLOAD_DIR/target.mozinfo.json"
+
+    # Fuzzing users want the correct version of llvm-symbolizer available in the
+    # same directory as the built output.
+    if [ -d "$MOZ_FETCHES_DIR/llvm-symbolizer" ]; then
+        for f in "$MOZ_FETCHES_DIR/llvm-symbolizer/bin/llvm-symbolizer"*; do
+            gzip -c "$f" > "$UPLOAD_DIR/llvm-symbolizer.gz" || echo "gzip $f failed" >&2
+            break
+        done
+    fi
+else # !upload
+# Provide a note for users on why we don't include artifacts for these builds
+# by default, and how they can get the artifacts if they really need them.
+    cat >"$UPLOAD_DIR"/README-artifacts.txt <<'EOF'
+Artifact upload has been disabled for this build due to infrequent usage of the
+generated artifacts.  If you find yourself in a position where you need the
+shell or similar artifacts from this build, please redo your push with the
+environment variable MOZ_JS_UPLOAD_BINARIES set to 1.  You can provide this as
+the option `--env MOZ_JS_UPLOAD_BINARIES=1` to `mach try fuzzy` or `mach try auto`.
+EOF
+fi
+
+# Fuzzing also uses a few fields in target.json file for automated downloads to
+# identify what was built.
+if [ -n "$MOZ_BUILD_DATE" ] && [ -n "$GECKO_HEAD_REV" ]; then
+    cat >"$UPLOAD_DIR"/target.json <<EOF
+{
+  "buildid": "$MOZ_BUILD_DATE",
+  "moz_source_stamp": "$GECKO_HEAD_REV"
+}
+EOF
+    cp "$GECKO_PATH"/mozconfig.autospider "$UPLOAD_DIR"
+fi
+
+exit $BUILD_STATUS
diff --git a/taskcluster/scripts/builder/repackage.sh b/taskcluster/scripts/builder/repackage.sh
new file mode 100755
index 0000000000..6ff67693af
--- /dev/null
+++ b/taskcluster/scripts/builder/repackage.sh
@@ -0,0 +1,95 @@
+#! /bin/bash -vex
+
+set -x -e
+
+echo "running as" $(id)
+
+####
+# Taskcluster friendly wrapper for performing fx desktop builds via mozharness.
+####
+
+# Inputs, with defaults
+
+: MOZHARNESS_SCRIPT             ${MOZHARNESS_SCRIPT}
+: MOZHARNESS_CONFIG             ${MOZHARNESS_CONFIG}
+: MOZHARNESS_CONFIG_PATHS       ${MOZHARNESS_CONFIG_PATHS}
+: MOZHARNESS_ACTIONS            ${MOZHARNESS_ACTIONS}
+: MOZHARNESS_OPTIONS            ${MOZHARNESS_OPTIONS}
+
+: TOOLTOOL_CACHE                ${TOOLTOOL_CACHE:=/builds/worker/tooltool-cache}
+
+: MOZ_SCM_LEVEL                 ${MOZ_SCM_LEVEL:=1}
+
+: WORKSPACE                     ${WORKSPACE:=/builds/worker/workspace}
+: MOZ_OBJDIR                    ${MOZ_OBJDIR:=$WORKSPACE/obj-build}
+
+set -v
+
+fail() {
+    echo # make sure error message is on a new line
+    echo "[build-linux.sh:error]" "${@}"
+    exit 1
+}
+
+export MOZ_CRASHREPORTER_NO_REPORT=1
+export TINDERBOX_OUTPUT=1
+
+# use "simple" package names so that they can be hard-coded in the task's
+# extras.locations
+export MOZ_SIMPLE_PACKAGE_NAME=target
+
+# test required parameters are supplied
+if [[ -z ${MOZHARNESS_SCRIPT} ]]; then fail "MOZHARNESS_SCRIPT is not set"; fi
+if [[ -z "${MOZHARNESS_CONFIG}" && -z "${EXTRA_MOZHARNESS_CONFIG}" ]]; then fail "MOZHARNESS_CONFIG or EXTRA_MOZHARNESS_CONFIG is not set"; fi
+
+# set up mozharness configuration, via command line, env, etc.
+
+debug_flag=""
+if [ 0$DEBUG -ne 0 ]; then
+  debug_flag='--debug'
+fi
+
+# $TOOLTOOL_CACHE bypasses mozharness completely and is read by tooltool_wrapper.sh to set the
+# cache.  However, only some mozharness scripts use tooltool_wrapper.sh, so this may not be
+# entirely effective.
+export TOOLTOOL_CACHE
+
+export MOZ_OBJDIR
+
+config_path_cmds=""
+for path in ${MOZHARNESS_CONFIG_PATHS}; do
+    config_path_cmds="${config_path_cmds} --extra-config-path ${GECKO_PATH}/${path}"
+done
+
+# support multiple, space delimited, config files
+config_cmds=""
+for cfg in $MOZHARNESS_CONFIG; do
+  config_cmds="${config_cmds} --config ${cfg}"
+done
+
+# if MOZHARNESS_ACTIONS is given, only run those actions (completely overriding default_actions
+# in the mozharness configuration)
+if [ -n "$MOZHARNESS_ACTIONS" ]; then
+    actions=""
+    for action in $MOZHARNESS_ACTIONS; do
+        actions="$actions --$action"
+    done
+fi
+
+# if MOZHARNESS_OPTIONS is given, append them to mozharness command line run
+if [ -n "$MOZHARNESS_OPTIONS" ]; then
+    options=""
+    for option in $MOZHARNESS_OPTIONS; do
+        options="$options --$option"
+    done
+fi
+
+cd /builds/worker
+
+$GECKO_PATH/mach python $GECKO_PATH/testing/${MOZHARNESS_SCRIPT} \
+  ${config_path_cmds} \
+  ${config_cmds} \
+  $actions \
+  $options \
+  --log-level=debug \
+  --work-dir=$WORKSPACE \