docs/.github/workflows/knative-style.yaml

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# Copyright 2020 The Knative Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# This file is automagically synced here from github.com/knative-sandbox/.github
# repo by knobots: https://github.com/knative-sandbox/knobots and will be overwritten.
name: Code Style
on:
pull_request:
branches: [ 'master', 'release-*' ]
jobs:
autoformat:
name: Auto-format and Check
runs-on: ubuntu-latest
strategy:
fail-fast: false # Keep running if one leg fails.
matrix:
tool:
- goimports
- gofmt
include:
- tool: gofmt
options: -s
- tool: goimports
importpath: golang.org/x/tools/cmd/goimports
steps:
- name: Set up Go 1.15.x
uses: actions/setup-go@v2
with:
go-version: 1.15.x
id: go
- name: Check out code
uses: actions/checkout@v2
- name: Install Dependencies
if: ${{ matrix.importpath != '' }}
run: |
cd $(mktemp -d)
GO111MODULE=on go get ${{ matrix.importpath }}
- name: ${{ matrix.tool }} ${{ matrix.options }}
shell: bash
run: |
${{ matrix.tool }} ${{ matrix.options }} -w $(find . -path './vendor' -prune -o -path './third_party' -prune -o -name '*.pb.go' -prune -o -type f -name '*.go' -print)
- name: Verify ${{ matrix.tool }}
shell: bash
run: |
# From: https://backreference.org/2009/12/23/how-to-match-newlines-in-sed/
# This is to leverage this workaround:
# https://github.com/actions/toolkit/issues/193#issuecomment-605394935
function urlencode() {
sed ':begin;$!N;s/\n/%0A/;tbegin'
}
if [[ $(git diff-index --name-only HEAD --) ]]; then
for x in $(git diff-index --name-only HEAD --); do
echo "::error file=$x::Please run ${{ matrix.tool }} ${{ matrix.options }}.%0A$(git diff $x | urlencode)"
done
echo "${{ github.repository }} is out of style. Please run ${{ matrix.tool }} ${{ matrix.options }}."
exit 1
fi
echo "${{ github.repository }} is formatted correctly."
lint:
name: Lint
runs-on: ubuntu-latest
steps:
- name: Set up Go 1.15.x
uses: actions/setup-go@v2
with:
go-version: 1.15.x
id: go
- name: Check out code
uses: actions/checkout@v2
- name: Install Tools
env:
WOKE_VERSION: v0.1.15
run: |
TEMP_PATH="$(mktemp -d)"
cd $TEMP_PATH
echo '::group::🐶 Installing reviewdog ... https://github.com/reviewdog/reviewdog'
curl -sfL https://raw.githubusercontent.com/reviewdog/reviewdog/master/install.sh | sh -s -- -b "${TEMP_PATH}" 2>&1
echo '::endgroup::'
echo '::group:: Installing misspell ... https://github.com/client9/misspell'
go get github.com/client9/misspell/cmd/misspell
echo '::endgroup::'
echo '::group:: Installing woke ... https://github.com/get-woke/woke'
curl -sfL https://raw.githubusercontent.com/get-woke/woke/main/install.sh | sh -s -- -b "${TEMP_PATH}" "${WOKE_VERSION}" 2>&1
echo '::endgroup::'
echo "${TEMP_PATH}" >> $GITHUB_PATH
- id: golangci_configuration
uses: andstor/file-existence-action@v1
with:
files: .golangci.yaml
- name: Go Lint
if: steps.golangci_configuration.outputs.files_exists == 'true'
uses: golangci/golangci-lint-action@v2
with:
version: v1.30
- name: misspell
shell: bash
if: ${{ always() }}
env:
REVIEWDOG_GITHUB_API_TOKEN: ${{ github.token }}
run: |
set -e
cd "${GITHUB_WORKSPACE}" || exit 1
echo '::group:: Running github.com/client9/misspell with reviewdog 🐶 ...'
# Don't fail because of misspell
set +o pipefail
find . -type f -not -path './vendor/*' -not -path './third_party/*' -not -path './.git/*' |
xargs misspell -error |
reviewdog -efm="%f:%l:%c: %m" \
-name="github.com/client9/misspell" \
-reporter="github-pr-check" \
-filter-mode="added" \
-fail-on-error="true" \
-level="error"
echo '::endgroup::'
- name: trailing whitespace
shell: bash
if: ${{ always() }}
env:
REVIEWDOG_GITHUB_API_TOKEN: ${{ github.token }}
run: |
set -e
cd "${GITHUB_WORKSPACE}" || exit 1
echo '::group:: Flagging trailing whitespace with reviewdog 🐶 ...'
# Don't fail because of grep
set +o pipefail
find . -type f -not -path './vendor/*' -not -path './third_party/*' -not -path './.git/*' |
xargs grep -nE " +$" |
reviewdog -efm="%f:%l:%m" \
-name="trailing whitespace" \
-reporter="github-pr-check" \
-filter-mode="added" \
-fail-on-error="true" \
-level="error"
echo '::endgroup::'
- name: EOF newline
shell: bash
if: ${{ always() }}
env:
REVIEWDOG_GITHUB_API_TOKEN: ${{ github.token }}
run: |
set -e
cd "${GITHUB_WORKSPACE}" || exit 1
echo '::group:: Flagging missing EOF newlines with reviewdog 🐶 ...'
# Don't fail because of misspell
set +o pipefail
# Lint exclude rule:
# - nothing in vendor/
# - nothing in third_party
# - nothing in .git/
# - no *.ai (Adobe Illustrator) files.
for x in $(find . -type f -not -name '*.ai' -not -path './vendor/*' -not -path './third_party/*' -not -path './.git/*'); do
# Based on https://stackoverflow.com/questions/34943632/linux-check-if-there-is-an-empty-line-at-the-end-of-a-file
if [[ -f $x && ! ( -s "$x" && -z "$(tail -c 1 $x)" ) ]]; then
# We add 1 to `wc -l` here because of this limitation (from the man page):
# Characters beyond the final <newline> character will not be included in the line count.
echo $x:$((1 + $(wc -l $x | tr -s ' ' | cut -d' ' -f 1))): Missing newline
fi
done |
reviewdog -efm="%f:%l: %m" \
-name="EOF Newline" \
-reporter="github-pr-check" \
-filter-mode="added" \
-fail-on-error="true" \
-level="error"
echo '::endgroup::'
- name: Redundant Format
shell: bash
if: ${{ always() }}
env:
REVIEWDOG_GITHUB_API_TOKEN: ${{ github.token }}
run: |
set -e
cd "${GITHUB_WORKSPACE}" || exit 1
echo '::group:: Flagging possibly unnecessary format calls for trailing argument with reviewdog 🐶 ...'
# Don't fail because of misspell
set +o pipefail
# For all look for formatting calls and extract the ones that
# have only a single formatting argument and that argument is in the last position.
# But exclude the `fmt.Errorf` calls since there's no `fmt.Error` and `errors.New` is not
# as versatile.
# Also ignore `%T` — to print the type and `%q` to quote the final string.
fn=$(find . -path './vendor' -prune -o -path './third_party' -prune -o -name '*.pb.go' -prune -o -type f -name '*.go' -print)
grep -nE '[^.]+\.(Fatalf|Errorf|Warnf|Infof|Debugf|Logf|Sprintf|Fprintf|Printf)[^\%]+%[^Tqx]",[^,]+' $fn | grep -v "fmt.Errorf" |
while read -r ent ; do
file=$(echo $ent | cut -d':' -f 1);
line=$(echo $ent | cut -d':' -f 2);
ch=$(echo $ent | cut -d':' -f3-);
err="Unknown printer tool, please file an issue in knative-sandbox/.github and assign to @vagababov: $ch"
if echo $ch | grep --quiet -E "^t.(Errorf|Fatalf|Logf)" ; then
err=$(echo $ch | sed -E 's/([^.fm]+t\.)(Fatal|Error|Log)f([^\%]+)( %[^Tq]",)([^,]+)/\1\2\3",\5/')
# Not a test. Here we deal with various loggers and fmt helpers.
elif echo $ch | grep --quiet "log" ; then
# Capture (x)?log(er)?.
err=$(echo $ch | sed -E 's/(.*log.*\.)(Print|Fatal|Error|Info|Warn)f([^\%]+)(%[^Tq]",)([^,]+)/\1\2\3",\5/')
elif echo $ch | grep --quiet -E "fmt\.Sprintf" ; then
# Always space after sprintf
err=$(echo $ch | sed -E 's/(fmt\.)(Sprint)f([^%]+) (%s",)([^,]+)/\1\2\3 ",\5/')
elif echo $ch | grep --quiet -E "fmt\." ; then # all other fmt. printers.
err=$(echo $ch | sed -E 's/(fmt\.)(Print|Fprint)f([^%]+) (%[^sTxq]",)([^,]+)/\1\2\3",\5/')
fi
echo "$file:$line: Please consider avoiding tail format like this:%0A$err"
done |
reviewdog -efm="%f:%l: %m" \
-name="Redundant Format" \
-reporter="github-pr-check" \
-filter-mode="added" \
-fail-on-error="true" \
-level="error"
echo '::endgroup::'
# This is mostly copied from https://github.com/get-woke/woke-action-reviewdog/blob/main/entrypoint.sh
# since their action is not yet released under a stable version.
- name: Language
if: ${{ always() && github.event_name == 'pull_request' }}
shell: bash
env:
REVIEWDOG_GITHUB_API_TOKEN: ${{ github.token }}
run: |
set -e
cd "${GITHUB_WORKSPACE}" || exit 1
# Create a minimal .wokeignore if none already exist.
if [ ! -f .wokeignore ]; then
cat > .wokeignore <<EOF
vendor/*
third_party/*
EOF
fi
echo '::group:: Running woke with reviewdog 🐶 ...'
woke --output simple \
| reviewdog -efm="%f:%l:%c: %m" \
-name="woke" \
-reporter="github-pr-check" \
-filter-mode="added" \
-fail-on-error="true" \
-level="error"
echo '::endgroup::'