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#!/bin/bash
# Set the SKIP_JOB environment variable if this job is supposed to only run
# when submodules are updated and they were not. The following time consuming
# tasks will be skipped when the environment variable is present.
set -euo pipefail
IFS=$'\n\t'
source "$(cd "$(dirname "$0")" && pwd)/../shared.sh"
if [[ -n "${CI_ONLY_WHEN_SUBMODULES_CHANGED-}" ]]; then
git fetch "https://github.com/$GITHUB_REPOSITORY" "$GITHUB_BASE_REF"
BASE_COMMIT="$(git merge-base FETCH_HEAD HEAD)"
echo "Searching for toolstate changes between $BASE_COMMIT and $(git rev-parse HEAD)"
if git diff "$BASE_COMMIT" | grep --quiet "^index .* 160000"; then
# Submodules pseudo-files inside git have the 160000 permissions, so when
# those files are present in the diff a submodule was updated.
echo "Submodules were updated"
elif ! (git diff --quiet "$BASE_COMMIT" -- \
src/tools/clippy src/tools/rustfmt src/tools/miri \
library/std/src/sys); then
# There is not an easy blanket search for subtrees. For now, manually list
# the subtrees.
# Also run this when the platform-specific parts of std change, in case
# that breaks Miri.
echo "Tool subtrees were updated"
elif ! (git diff --quiet "$BASE_COMMIT" -- \
src/test/rustdoc-gui \
src/librustdoc \
src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile \
src/ci/docker/host-x86_64/x86_64-gnu-tools/browser-ui-test.version \
src/tools/rustdoc-gui); then
# There was a change in either rustdoc or in its GUI tests.
echo "Rustdoc was updated"
else
echo "Not executing this job since no submodules nor subtrees were updated"
ciCommandSetEnv SKIP_JOB 1
exit 0
fi
fi
if [[ -n "${CI_ONLY_WHEN_CHANNEL-}" ]]; then
if [[ "${CI_ONLY_WHEN_CHANNEL}" = "$(cat src/ci/channel)" ]]; then
echo "The channel is the expected one"
else
echo "Not executing this job as the channel is not the expected one"
ciCommandSetEnv SKIP_JOB 1
exit 0
fi
fi
echo "Executing the job since there is no skip rule preventing the execution"
exit 0
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