1#!/bin/sh
2
3set -xe
4
5test "$TASK_ID"
6test "$SIGNING_CERT"
7
8ARTIFACTS_DIR="/home/worker/artifacts"
9mkdir -p "$ARTIFACTS_DIR"
10
11# Strip trailing / if present
12TASKCLUSTER_ROOT_URL="${TASKCLUSTER_ROOT_URL%/}"
13export TASKCLUSTER_ROOT_URL
14
15# duplicate the functionality of taskcluster-lib-urls, but in bash..
16queue_base="${TASKCLUSTER_ROOT_URL%/}/api/queue/v1"
17
18curl --location --retry 10 --retry-delay 10 -o /home/worker/task.json "$queue_base/task/$TASK_ID"
19
20# auth:aws-s3:read-write:tc-gp-private-1d-us-east-1/releng/mbsdiff-cache/
21# -> bucket of tc-gp-private-1d-us-east-1, path of releng/mbsdiff-cache/
22# Trailing slash is important, due to prefix permissions in S3.
23S3_BUCKET_AND_PATH=$(jq -r '.scopes[] | select(contains ("auth:aws-s3"))' /home/worker/task.json | awk -F: '{print $4}')
24
25# Will be empty if there's no scope for AWS S3.
26if [ -n "${S3_BUCKET_AND_PATH}" ] && getent hosts taskcluster
27then
28  # Does this parse as we expect?
29  S3_PATH=${S3_BUCKET_AND_PATH#*/}
30  AWS_BUCKET_NAME=${S3_BUCKET_AND_PATH%/${S3_PATH}*}
31  test "${S3_PATH}"
32  test "${AWS_BUCKET_NAME}"
33
34  set +x  # Don't echo these.
35  secret_url="${TASKCLUSTER_PROXY_URL}/api/auth/v1/aws/s3/read-write/${AWS_BUCKET_NAME}/${S3_PATH}"
36  AUTH=$(curl "${secret_url}")
37  AWS_ACCESS_KEY_ID=$(echo "${AUTH}" | jq -r '.credentials.accessKeyId')
38  AWS_SECRET_ACCESS_KEY=$(echo "${AUTH}" | jq -r '.credentials.secretAccessKey')
39  AWS_SESSION_TOKEN=$(echo "${AUTH}" | jq -r '.credentials.sessionToken')
40  export AWS_ACCESS_KEY_ID
41  export AWS_SECRET_ACCESS_KEY
42  export AWS_SESSION_TOKEN
43  AUTH=
44
45  if [ -n "$AWS_ACCESS_KEY_ID" ] && [ -n "$AWS_SECRET_ACCESS_KEY" ]; then
46    # Pass the full bucket/path prefix, as the script just appends local files.
47    export MBSDIFF_HOOK="/home/worker/bin/mbsdiff_hook.sh -S ${S3_BUCKET_AND_PATH}"
48  fi
49  set -x
50else
51  # disable caching
52  export MBSDIFF_HOOK=
53fi
54
55# EXTRA_PARAMS is optional
56# shellcheck disable=SC2086
57python3.8 /home/worker/bin/funsize.py \
58    --artifacts-dir "$ARTIFACTS_DIR" \
59    --task-definition /home/worker/task.json \
60    --signing-cert "/home/worker/keys/${SIGNING_CERT}.pubkey" \
61    $EXTRA_PARAMS
62