blob: d126a3cb080005e33bcfe3d7ea2bc33981019c7b [file] [log] [blame]
#!/usr/bin/env bash
# Copyright 2019 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.
source devtools/lib.sh || { echo "Are you at repo root?"; exit 1; }
warnout() {
while read line; do
warn "$line"
done
}
# codedirs lists directories that contain discovery code. If they include
# directories containing external code, those directories must be excluded in
# findcode below.
codedirs=(
"cmd"
"content"
"internal"
"migrations"
)
# verify_header checks that all given files contain the standard header for Go
# projects.
verify_header() {
if [[ "$@" != "" ]]; then
for FILE in $@
do
# Allow for the copyright header to start on either of the first two
# lines, to accomodate conventions for CSS and HTML.
line="$(head -3 $FILE)"
if [[ ! $line == *"The Go Authors. All rights reserved."* ]] &&
[[ ! $line == "// DO NOT EDIT. This file was copied from" ]]; then
err "missing license header: $FILE"
fi
done
fi
}
# findcode finds source files in the repo, skipping third-party source.
findcode() {
find ${codedirs[@]} \
-not -path '*/third_party/*' \
\( -name *.go -o -name *.sql -o -name *.tmpl -o -name *.css -o -name *.js \)
}
# ensure_go_binary verifies that a binary exists in $PATH corresponding to the
# given go-gettable URI. If no such binary exists, it is fetched via `go get`.
ensure_go_binary() {
local binary=$(basename $1)
if ! [ -x "$(command -v $binary)" ]; then
info "Installing: $1"
# Run in a subshell for convenience, so that we don't have to worry about
# our PWD.
(set -x; cd && env GO111MODULE=on go get -u $1)
fi
}
# check_headers checks that all source files that have been staged in this
# commit, and all other non-third-party files in the repo, have a license
# header.
check_headers() {
info "Checking staged files for license header"
# Check code files that have been modified or added.
verify_header $(git diff --cached --name-status | grep -vE "^D" | cut -f 2- | grep -E ".go$|.sql$|.sh$")
info "Checking internal files for license header"
verify_header $(findcode)
}
# bad_migrations outputs migrations with bad sequence numbers.
bad_migrations() {
ls migrations | cut -d _ -f 1 | sort | uniq -c | grep -vE '^\s+2 '
}
# check_bad_migrations looks for sql migration files with bad sequence numbers,
# possibly resulting from a bad merge.
check_bad_migrations() {
info "Checking for bad migrations"
bad_migrations | while read line
do
err "unexpected number of migrations: $line"
done
}
# check_unparam runs unparam on source files.
check_unparam() {
ensure_go_binary mvdan.cc/unparam
runcmd unparam ./...
}
# check_staticcheck runs staticcheck on source files.
check_staticcheck() {
ensure_go_binary honnef.co/go/tools/cmd/staticcheck
runcmd staticcheck $(go list ./... | grep -v third_party | grep -v internal/doc | grep -v internal/render) | warnout
}
# check_misspell runs misspell on source files.
check_misspell() {
ensure_go_binary github.com/client9/misspell/cmd/misspell
runcmd misspell cmd/**/*.{go,sh} internal/**/* README.md | warnout
}
# check_templates runs go-template-lint on template files. Unfortunately it
# doesn't handler the /helpers/ fileglob correctly, so it is too noisy to be
# included in standard checks.
check_templates() {
ensure_go_binary sourcegraph.com/sourcegraph/go-template-lint
runcmd go-template-lint \
-f=internal/frontend/server.go \
-t=internal/frontend/server.go \
-td=content/static/html/pages | warnout
}
run_prettier() {
if ! [ -x "$(command -v prettier)" ]; then
err "prettier must be installed"
fi
runcmd prettier --write content/static/css/*.css
runcmd prettier --write content/static/js/*.js
runcmd prettier --write **/*.md
}
standard_linters() {
check_headers
check_bad_migrations
check_staticcheck
check_misspell
check_unparam
}
usage() {
cat <<EOUSAGE
Usage: $0 [subcommand]
Available subcommands:
help - display this help message
(empty) - run all standard checks and tests
ci - run checks and tests suitable for continuous integration
lint - run all standard linters below:
headers - (lint) check source files for the license disclaimer
migrations - (lint) check migration sequence numbers
misspell - (lint) run misspell on source files
staticcheck - (lint) run staticcheck on source files
unparam - (lint) run unparam on source files
prettier - (lint, nonstandard) run prettier on .js and .css files.
templates - (lint, nonstandard) run go-template-lint on templates
EOUSAGE
}
main() {
case "$1" in
"-h" | "--help" | "help")
usage
exit 0
;;
"")
standard_linters
runcmd go mod tidy
runcmd go test ./...
# To test internal/secrets, set GO_DISCOVERY_SECRETS_BUCKET and GO_DISCOVERY_KMS_KEY_NAME
# to appropriate test values.
runcmd go test ./internal/secrets
;;
ci)
# Similar to the no-arg mode, but omit actions that require GCP
# permissions or that don't test the code.
standard_linters
runcmd go test -race -count=1 ./...
;;
lint) standard_linters ;;
headers) check_headers ;;
migrations) check_migrations ;;
misspell) check_misspell ;;
staticcheck) check_staticcheck ;;
prettier) run_prettier ;;
templates) check_templates ;;
unparam) check_unparam ;;
*)
usage
exit 1
esac
if [[ $EXIT_CODE != 0 ]]; then
err "FAILED; see errors above"
fi
exit $EXIT_CODE
}
main $@