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Move gocovmerge as vendor (#10947)

* Move gocovmerge as vendor

* Update Makefile

Co-Authored-By: guillep2k <18600385+guillep2k@users.noreply.github.com>

Co-authored-by: guillep2k <18600385+guillep2k@users.noreply.github.com>
mj
Lunny Xiao 3 years ago
committed by GitHub
parent
commit
b264c30394
No known key found for this signature in database GPG Key ID: 4AEE18F83AFDEB23
  1. 5
      Makefile
  2. 119
      build/gocovmerge.go
  3. 3
      build/vendor.go
  4. 1
      go.mod
  5. 256
      vendor/golang.org/x/tools/cover/profile.go
  6. 2
      vendor/modules.txt

5
Makefile

@ -293,10 +293,7 @@ test\#%:
.PHONY: coverage
coverage:
@hash gocovmerge > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
$(GO) get -u github.com/wadey/gocovmerge; \
fi
gocovmerge integration.coverage.out $(shell find . -type f -name "coverage.out") > coverage.all;\
GO111MODULE=on $(GO) run -mod=vendor build/gocovmerge.go integration.coverage.out $(shell find . -type f -name "coverage.out") > coverage.all
.PHONY: unit-test-coverage
unit-test-coverage:

119
build/gocovmerge.go

@ -0,0 +1,119 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// Copyright (c) 2015, Wade Simmons
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
// gocovmerge takes the results from multiple `go test -coverprofile` runs and
// merges them into one profile
// +build ignore
package main
import (
"flag"
"fmt"
"io"
"log"
"os"
"sort"
"golang.org/x/tools/cover"
)
func mergeProfiles(p *cover.Profile, merge *cover.Profile) {
if p.Mode != merge.Mode {
log.Fatalf("cannot merge profiles with different modes")
}
// Since the blocks are sorted, we can keep track of where the last block
// was inserted and only look at the blocks after that as targets for merge
startIndex := 0
for _, b := range merge.Blocks {
startIndex = mergeProfileBlock(p, b, startIndex)
}
}
func mergeProfileBlock(p *cover.Profile, pb cover.ProfileBlock, startIndex int) int {
sortFunc := func(i int) bool {
pi := p.Blocks[i+startIndex]
return pi.StartLine >= pb.StartLine && (pi.StartLine != pb.StartLine || pi.StartCol >= pb.StartCol)
}
i := 0
if sortFunc(i) != true {
i = sort.Search(len(p.Blocks)-startIndex, sortFunc)
}
i += startIndex
if i < len(p.Blocks) && p.Blocks[i].StartLine == pb.StartLine && p.Blocks[i].StartCol == pb.StartCol {
if p.Blocks[i].EndLine != pb.EndLine || p.Blocks[i].EndCol != pb.EndCol {
log.Fatalf("OVERLAP MERGE: %v %v %v", p.FileName, p.Blocks[i], pb)
}
switch p.Mode {
case "set":
p.Blocks[i].Count |= pb.Count
case "count", "atomic":
p.Blocks[i].Count += pb.Count
default:
log.Fatalf("unsupported covermode: '%s'", p.Mode)
}
} else {
if i > 0 {
pa := p.Blocks[i-1]
if pa.EndLine >= pb.EndLine && (pa.EndLine != pb.EndLine || pa.EndCol > pb.EndCol) {
log.Fatalf("OVERLAP BEFORE: %v %v %v", p.FileName, pa, pb)
}
}
if i < len(p.Blocks)-1 {
pa := p.Blocks[i+1]
if pa.StartLine <= pb.StartLine && (pa.StartLine != pb.StartLine || pa.StartCol < pb.StartCol) {
log.Fatalf("OVERLAP AFTER: %v %v %v", p.FileName, pa, pb)
}
}
p.Blocks = append(p.Blocks, cover.ProfileBlock{})
copy(p.Blocks[i+1:], p.Blocks[i:])
p.Blocks[i] = pb
}
return i + 1
}
func addProfile(profiles []*cover.Profile, p *cover.Profile) []*cover.Profile {
i := sort.Search(len(profiles), func(i int) bool { return profiles[i].FileName >= p.FileName })
if i < len(profiles) && profiles[i].FileName == p.FileName {
mergeProfiles(profiles[i], p)
} else {
profiles = append(profiles, nil)
copy(profiles[i+1:], profiles[i:])
profiles[i] = p
}
return profiles
}
func dumpProfiles(profiles []*cover.Profile, out io.Writer) {
if len(profiles) == 0 {
return
}
fmt.Fprintf(out, "mode: %s\n", profiles[0].Mode)
for _, p := range profiles {
for _, b := range p.Blocks {
fmt.Fprintf(out, "%s:%d.%d,%d.%d %d %d\n", p.FileName, b.StartLine, b.StartCol, b.EndLine, b.EndCol, b.NumStmt, b.Count)
}
}
}
func main() {
flag.Parse()
var merged []*cover.Profile
for _, file := range flag.Args() {
profiles, err := cover.ParseProfiles(file)
if err != nil {
log.Fatalf("failed to parse profiles: %v", err)
}
for _, p := range profiles {
merged = addProfile(merged, p)
}
}
dumpProfiles(merged, os.Stdout)
}

3
build/vendor.go

@ -15,4 +15,7 @@ import (
// for embed
_ "github.com/shurcooL/vfsgen"
// for cover merge
_ "golang.org/x/tools/cover"
)

1
go.mod

@ -111,6 +111,7 @@ require (
golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45
golang.org/x/sys v0.0.0-20200302150141-5c8b2ff67527
golang.org/x/text v0.3.2
golang.org/x/tools v0.0.0-20200225230052-807dcd883420
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect
gopkg.in/asn1-ber.v1 v1.0.0-20150924051756-4e86f4367175 // indirect
gopkg.in/gomail.v2 v2.0.0-20160411212932-81ebce5c23df

256
vendor/golang.org/x/tools/cover/profile.go

@ -0,0 +1,256 @@
// Copyright 2013 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.
// Package cover provides support for parsing coverage profiles
// generated by "go test -coverprofile=cover.out".
package cover // import "golang.org/x/tools/cover"
import (
"bufio"
"errors"
"fmt"
"math"
"os"
"sort"
"strconv"
"strings"
)
// Profile represents the profiling data for a specific file.
type Profile struct {
FileName string
Mode string
Blocks []ProfileBlock
}
// ProfileBlock represents a single block of profiling data.
type ProfileBlock struct {
StartLine, StartCol int
EndLine, EndCol int
NumStmt, Count int
}
type byFileName []*Profile
func (p byFileName) Len() int { return len(p) }
func (p byFileName) Less(i, j int) bool { return p[i].FileName < p[j].FileName }
func (p byFileName) Swap(i, j int) { p[i], p[j] = p[j], p[i] }
// ParseProfiles parses profile data in the specified file and returns a
// Profile for each source file described therein.
func ParseProfiles(fileName string) ([]*Profile, error) {
pf, err := os.Open(fileName)
if err != nil {
return nil, err
}
defer pf.Close()
files := make(map[string]*Profile)
buf := bufio.NewReader(pf)
// First line is "mode: foo", where foo is "set", "count", or "atomic".
// Rest of file is in the format
// encoding/base64/base64.go:34.44,37.40 3 1
// where the fields are: name.go:line.column,line.column numberOfStatements count
s := bufio.NewScanner(buf)
mode := ""
for s.Scan() {
line := s.Text()
if mode == "" {
const p = "mode: "
if !strings.HasPrefix(line, p) || line == p {
return nil, fmt.Errorf("bad mode line: %v", line)
}
mode = line[len(p):]
continue
}
fn, b, err := parseLine(line)
if err != nil {
return nil, fmt.Errorf("line %q doesn't match expected format: %v", line, err)
}
p := files[fn]
if p == nil {
p = &Profile{
FileName: fn,
Mode: mode,
}
files[fn] = p
}
p.Blocks = append(p.Blocks, b)
}
if err := s.Err(); err != nil {
return nil, err
}
for _, p := range files {
sort.Sort(blocksByStart(p.Blocks))
// Merge samples from the same location.
j := 1
for i := 1; i < len(p.Blocks); i++ {
b := p.Blocks[i]
last := p.Blocks[j-1]
if b.StartLine == last.StartLine &&
b.StartCol == last.StartCol &&
b.EndLine == last.EndLine &&
b.EndCol == last.EndCol {
if b.NumStmt != last.NumStmt {
return nil, fmt.Errorf("inconsistent NumStmt: changed from %d to %d", last.NumStmt, b.NumStmt)
}
if mode == "set" {
p.Blocks[j-1].Count |= b.Count
} else {
p.Blocks[j-1].Count += b.Count
}
continue
}
p.Blocks[j] = b
j++
}
p.Blocks = p.Blocks[:j]
}
// Generate a sorted slice.
profiles := make([]*Profile, 0, len(files))
for _, profile := range files {
profiles = append(profiles, profile)
}
sort.Sort(byFileName(profiles))
return profiles, nil
}
// parseLine parses a line from a coverage file.
// It is equivalent to the regex
// ^(.+):([0-9]+)\.([0-9]+),([0-9]+)\.([0-9]+) ([0-9]+) ([0-9]+)$
//
// However, it is much faster: https://golang.org/cl/179377
func parseLine(l string) (fileName string, block ProfileBlock, err error) {
end := len(l)
b := ProfileBlock{}
b.Count, end, err = seekBack(l, ' ', end, "Count")
if err != nil {
return "", b, err
}
b.NumStmt, end, err = seekBack(l, ' ', end, "NumStmt")
if err != nil {
return "", b, err
}
b.EndCol, end, err = seekBack(l, '.', end, "EndCol")
if err != nil {
return "", b, err
}
b.EndLine, end, err = seekBack(l, ',', end, "EndLine")
if err != nil {
return "", b, err
}
b.StartCol, end, err = seekBack(l, '.', end, "StartCol")
if err != nil {
return "", b, err
}
b.StartLine, end, err = seekBack(l, ':', end, "StartLine")
if err != nil {
return "", b, err
}
fn := l[0:end]
if fn == "" {
return "", b, errors.New("a FileName cannot be blank")
}
return fn, b, nil
}
// seekBack searches backwards from end to find sep in l, then returns the
// value between sep and end as an integer.
// If seekBack fails, the returned error will reference what.
func seekBack(l string, sep byte, end int, what string) (value int, nextSep int, err error) {
// Since we're seeking backwards and we know only ASCII is legal for these values,
// we can ignore the possibility of non-ASCII characters.
for start := end - 1; start >= 0; start-- {
if l[start] == sep {
i, err := strconv.Atoi(l[start+1 : end])
if err != nil {
return 0, 0, fmt.Errorf("couldn't parse %q: %v", what, err)
}
if i < 0 {
return 0, 0, fmt.Errorf("negative values are not allowed for %s, found %d", what, i)
}
return i, start, nil
}
}
return 0, 0, fmt.Errorf("couldn't find a %s before %s", string(sep), what)
}
type blocksByStart []ProfileBlock
func (b blocksByStart) Len() int { return len(b) }
func (b blocksByStart) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b blocksByStart) Less(i, j int) bool {
bi, bj := b[i], b[j]
return bi.StartLine < bj.StartLine || bi.StartLine == bj.StartLine && bi.StartCol < bj.StartCol
}
// Boundary represents the position in a source file of the beginning or end of a
// block as reported by the coverage profile. In HTML mode, it will correspond to
// the opening or closing of a <span> tag and will be used to colorize the source
type Boundary struct {
Offset int // Location as a byte offset in the source file.
Start bool // Is this the start of a block?
Count int // Event count from the cover profile.
Norm float64 // Count normalized to [0..1].
}
// Boundaries returns a Profile as a set of Boundary objects within the provided src.
func (p *Profile) Boundaries(src []byte) (boundaries []Boundary) {
// Find maximum count.
max := 0
for _, b := range p.Blocks {
if b.Count > max {
max = b.Count
}
}
// Divisor for normalization.
divisor := math.Log(float64(max))
// boundary returns a Boundary, populating the Norm field with a normalized Count.
boundary := func(offset int, start bool, count int) Boundary {
b := Boundary{Offset: offset, Start: start, Count: count}
if !start || count == 0 {
return b
}
if max <= 1 {
b.Norm = 0.8 // Profile is in"set" mode; we want a heat map. Use cov8 in the CSS.
} else if count > 0 {
b.Norm = math.Log(float64(count)) / divisor
}
return b
}
line, col := 1, 2 // TODO: Why is this 2?
for si, bi := 0, 0; si < len(src) && bi < len(p.Blocks); {
b := p.Blocks[bi]
if b.StartLine == line && b.StartCol == col {
boundaries = append(boundaries, boundary(si, true, b.Count))
}
if b.EndLine == line && b.EndCol == col || line > b.EndLine {
boundaries = append(boundaries, boundary(si, false, 0))
bi++
continue // Don't advance through src; maybe the next block starts here.
}
if src[si] == '\n' {
line++
col = 0
}
col++
si++
}
sort.Sort(boundariesByPos(boundaries))
return
}
type boundariesByPos []Boundary
func (b boundariesByPos) Len() int { return len(b) }
func (b boundariesByPos) Swap(i, j int) { b[i], b[j] = b[j], b[i] }
func (b boundariesByPos) Less(i, j int) bool {
if b[i].Offset == b[j].Offset {
return !b[i].Start && b[j].Start
}
return b[i].Offset < b[j].Offset
}

2
vendor/modules.txt

@ -732,6 +732,8 @@ golang.org/x/text/unicode/bidi
golang.org/x/text/unicode/norm
golang.org/x/text/width
# golang.org/x/tools v0.0.0-20200225230052-807dcd883420
## explicit
golang.org/x/tools/cover
golang.org/x/tools/go/ast/astutil
golang.org/x/tools/go/buildutil
golang.org/x/tools/go/gcexportdata

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