254 lines
5.2 KiB
Bash
254 lines
5.2 KiB
Bash
#!/bin/sh
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verbose="${VERBOSE:-0}"
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# Set verbosity.
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if [ "$verbose" -gt '0' ]
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then
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set -x
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fi
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# Set $EXIT_ON_ERROR to zero to see all errors.
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if [ "${EXIT_ON_ERROR:-1}" -eq '0' ]
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then
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set +e
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else
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set -e
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fi
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# We don't need glob expansions and we want to see errors about unset variables.
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set -f -u
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# Deferred Helpers
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not_found_msg='
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looks like a binary not found error.
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make sure you have installed the linter binaries using:
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$ make go-tools
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'
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readonly not_found_msg
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# TODO(a.garipov): Put it into a separate script and source it both here and in
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# txt-lint.sh?
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not_found() {
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if [ "$?" -eq '127' ]
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then
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# Code 127 is the exit status a shell uses when a command or
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# a file is not found, according to the Bash Hackers wiki.
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#
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# See https://wiki.bash-hackers.org/dict/terms/exit_status.
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echo "$not_found_msg" 1>&2
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fi
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}
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trap not_found EXIT
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# Warnings
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go_version="$( "${GO:-go}" version )"
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readonly go_version
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go_min_version='go1.19'
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go_version_msg="
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warning: your go version (${go_version}) is different from the recommended minimal one (${go_min_version}).
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if you have the version installed, please set the GO environment variable.
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for example:
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export GO='${go_min_version}'
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"
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readonly go_min_version go_version_msg
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case "$go_version"
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in
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('go version'*"$go_min_version"*)
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# Go on.
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;;
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(*)
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echo "$go_version_msg" 1>&2
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;;
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esac
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# Simple Analyzers
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# blocklist_imports is a simple check against unwanted packages. The following
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# packages are banned:
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#
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# * Packages errors and log are replaced by our own packages in the
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# github.com/AdguardTeam/golibs module.
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#
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# * Package io/ioutil is soft-deprecated.
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#
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# * Package reflect is often an overkill, and for deep comparisons there are
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# much better functions in module github.com/google/go-cmp. Which is
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# already our indirect dependency and which may or may not enter the stdlib
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# at some point.
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#
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# See https://github.com/golang/go/issues/45200.
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#
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# * Package unsafe is… unsafe.
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#
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# * Package golang.org/x/net/context has been moved into stdlib.
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#
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blocklist_imports() {
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git grep\
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-e '[[:space:]]"errors"$'\
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-e '[[:space:]]"io/ioutil"$'\
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-e '[[:space:]]"log"$'\
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-e '[[:space:]]"reflect"$'\
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-e '[[:space:]]"unsafe"$'\
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-e '[[:space:]]"golang.org/x/net/context"$'\
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-n\
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-- '*.go'\
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| sed -e 's/^\([^[:space:]]\+\)\(.*\)$/\1 blocked import:\2/'\
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|| exit 0
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}
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# method_const is a simple check against the usage of some raw strings and
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# numbers where one should use named constants.
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method_const() {
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git grep -F\
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-e '"DELETE"'\
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-e '"GET"'\
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-e '"POST"'\
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-e '"PUT"'\
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-n\
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-- '*.go'\
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| sed -e 's/^\([^[:space:]]\+\)\(.*\)$/\1 http method literal:\2/'\
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|| exit 0
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}
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# underscores is a simple check against Go filenames with underscores. Add new
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# build tags and OS as you go. The main goal of this check is to discourage the
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# use of filenames like client_manager.go.
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underscores() {
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underscore_files="$(
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git ls-files '*_*.go'\
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| grep -F\
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-e '_big.go'\
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-e '_bsd.go'\
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-e '_darwin.go'\
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-e '_freebsd.go'\
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-e '_linux.go'\
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-e '_little.go'\
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-e '_next.go'\
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-e '_openbsd.go'\
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-e '_others.go'\
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-e '_test.go'\
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-e '_unix.go'\
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-e '_windows.go' \
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-v\
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| sed -e 's/./\t\0/'
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)"
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readonly underscore_files
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if [ "$underscore_files" != '' ]
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then
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echo 'found file names with underscores:'
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echo "$underscore_files"
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fi
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}
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# TODO(a.garipov): Add an analyzer to look for `fallthrough`, `goto`, and `new`?
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# Helpers
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# exit_on_output exits with a nonzero exit code if there is anything in the
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# command's combined output.
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exit_on_output() (
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set +e
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if [ "$VERBOSE" -lt '2' ]
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then
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set +x
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fi
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cmd="$1"
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shift
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output="$( "$cmd" "$@" 2>&1 )"
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exitcode="$?"
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if [ "$exitcode" -ne '0' ]
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then
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echo "'$cmd' failed with code $exitcode"
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fi
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if [ "$output" != '' ]
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then
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if [ "$*" != '' ]
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then
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echo "combined output of linter '$cmd $*':"
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else
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echo "combined output of linter '$cmd':"
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fi
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echo "$output"
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if [ "$exitcode" -eq '0' ]
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then
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exitcode='1'
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fi
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fi
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return "$exitcode"
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)
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# Checks
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exit_on_output blocklist_imports
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exit_on_output method_const
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exit_on_output underscores
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exit_on_output gofumpt --extra -e -l .
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# TODO(a.garipov): golint is deprecated, and seems to cause more and more
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# issues with each release. Find a suitable replacement.
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#
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# golint --set_exit_status ./...
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"$GO" vet ./...
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govulncheck ./...
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# Apply more lax standards to the code we haven't properly refactored yet.
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gocyclo --over 17 ./internal/querylog/
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gocyclo --over 13 ./internal/dhcpd ./internal/filtering/ ./internal/home/
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# Apply stricter standards to new or somewhat refactored code.
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gocyclo --over 10 ./internal/aghio/ ./internal/aghnet/ ./internal/aghos/\
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./internal/aghtest/ ./internal/dnsforward/ ./internal/filtering/rewrite/\
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./internal/stats/ ./internal/tools/ ./internal/updater/ ./internal/next/\
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./internal/version/ ./scripts/blocked-services/ ./scripts/vetted-filters/\
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./main.go
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ineffassign ./...
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unparam ./...
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git ls-files -- '*.go' '*.mod' '*.sh' 'Makefile' | xargs misspell --error
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looppointer ./...
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nilness ./...
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exit_on_output shadow --strict ./...
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# TODO(a.garipov): Enable in v0.108.0.
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# gosec --quiet ./...
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# TODO(a.garipov): Enable --blank?
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errcheck --asserts ./...
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staticcheck ./...
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