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#!/bin/sh
#
# check if a pr is compatible with polkadot companion pr or master if not
# available
#
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# to override one that was just mentioned mark companion pr in the body of the
# polkadot pr like
#
# polkadot companion: paritytech/polkadot#567
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#
github_api_substrate_pull_url="https://api.github.com/repos/paritytech/substrate/pulls"
# use github api v3 in order to access the data without authentication
github_header="Authorization: token ${GITHUB_PR_TOKEN}"
boldprint () { printf "|\n| \033[1m${@}\033[0m\n|\n" ; }
boldcat () { printf "|\n"; while read l; do printf "| \033[1m${l}\033[0m\n"; done; printf "|\n" ; }
boldcat <<-EOT
check_polkadot_companion_build
==============================
this job checks if there is a string in the description of the pr like
polkadot companion: paritytech/polkadot#567
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it will then run cargo check from this polkadot's branch with substrate code
from this pull request. in absence of that string it will check if a polkadot
pr is mentioned and will use the last one instead. if none of the above can be
found it will check if polkadot has a branch of the exact same name than the
substrate's branch. if it can't find anything, it will uses master instead
# Set the user name and email to make merging work
git config --global user.name 'CI system'
git config --global user.email '<>'
SUBSTRATE_PATH=$(pwd)
# Merge master into our branch before building Polkadot to make sure we don't miss
# any commits that are required by Polkadot.
git merge origin/master
# Clone the current Polkadot master branch into ./polkadot.
git clone --depth 1 https://github.com/paritytech/polkadot.git
cd polkadot
# either it's a pull request then check for a companion otherwise use
# polkadot:master
if expr match "${CI_COMMIT_REF_NAME}" '^[0-9]\+$' >/dev/null
then
boldprint "this is pull request no ${CI_COMMIT_REF_NAME}"
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# get the last reference to a pr in polkadot
curl -sSL -H "${github_header}" -o "${pr_data_file}" \
"${github_api_substrate_pull_url}/${CI_COMMIT_REF_NAME}"
pr_body="$(sed -n -r 's/^[[:space:]]+"body": (".*")[^"]+$/\1/p' "${pr_data_file}")"
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pr_companion="$(echo "${pr_body}" | sed -n -r \
-e 's;^.*polkadot companion: paritytech/polkadot#([0-9]+).*$;\1;p' \
-e 's;^.*polkadot companion: https://github.com/paritytech/polkadot/pull/([0-9]+).*$;\1;p' \
| tail -n 1)"
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if [ -z "${pr_companion}" ]
then
pr_companion="$(echo "${pr_body}" | sed -n -r \
-e 's;^.*paritytech/polkadot/#([0-9]+).*$;\1;p' \
-e 's;^.*https://github.com/paritytech/polkadot/pull/([0-9]+).*$;\1;p' \
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| tail -n 1)"
fi
if [ "${pr_companion}" ]
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boldprint "companion pr specified/detected: #${pr_companion}"
git fetch origin refs/pull/${pr_companion}/head:pr/${pr_companion}
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git checkout pr/${pr_companion}
git merge origin/master
pr_ref="$(grep -Po '"ref"\s*:\s*"\K(?!master)[^"]*' "${pr_data_file}")"
if git fetch origin "$pr_ref":branch/"$pr_ref" 2>/dev/null
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then
boldprint "companion branch detected: $pr_ref"
git checkout branch/"$pr_ref"
git merge origin/master
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else
boldprint "no companion branch found - building polkadot:master"
fi
else
boldprint "this is not a pull request - building polkadot:master"
fi
# Make sure we override the crates in native and wasm build
# patching the git path as described in the link below did not test correctly
# https://doc.rust-lang.org/cargo/reference/overriding-dependencies.html
mkdir .cargo
echo "paths = [ \"$SUBSTRATE_PATH\" ]" > .cargo/config
mkdir -p target/debug/wbuild/.cargo
cp .cargo/config target/debug/wbuild/.cargo/config
# Test Polkadot pr or master branch with this Substrate commit.
time cargo test --all --release --verbose