go.mod: vendor golangci-lint

author: Dmitry Vyukov <dvyukov@google.com> 2020-07-04 11:12:55 +0200
committer: Dmitry Vyukov <dvyukov@google.com> 2020-07-04 15:05:30 +0200
commit: c7d7f10bdff703e4a3c0414e8a33d4e45c91eb35 (patch)
tree: 0dff0ee1f98dbfa3ad8776112053a450d176592b /vendor/github.com/golangci/dupl/printer
parent: 9573094ce235bd9afe88f5da27a47dd6bcc1e13b (diff)
4 files changed, 281 insertions, 0 deletions
diff --git a/vendor/github.com/golangci/dupl/printer/html.go b/vendor/github.com/golangci/dupl/printer/html.go
new file mode 100644
index 000000000..5ad9e25c7
--- /dev/null
+++ b/vendor/github.com/golangci/dupl/printer/html.go
@@ -0,0 +1,120 @@
+package printer
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"regexp"
+	"sort"
+
+	"github.com/golangci/dupl/syntax"
+)
+
+type html struct {
+	iota int
+	w    io.Writer
+	ReadFile
+}
+
+func NewHTML(w io.Writer, fread ReadFile) Printer {
+	return &html{w: w, ReadFile: fread}
+}
+
+func (p *html) PrintHeader() error {
+	_, err := fmt.Fprint(p.w, `<!DOCTYPE html>
+<meta charset="utf-8"/>
+<title>Duplicates</title>
+<style>
+	pre {
+		background-color: #FFD;
+		border: 1px solid #E2E2E2;
+		padding: 1ex;
+	}
+</style>
+`)
+	return err
+}
+
+func (p *html) PrintClones(dups [][]*syntax.Node) error {
+	p.iota++
+	fmt.Fprintf(p.w, "<h1>#%d found %d clones</h1>\n", p.iota, len(dups))
+
+	clones := make([]clone, len(dups))
+	for i, dup := range dups {
+		cnt := len(dup)
+		if cnt == 0 {
+			panic("zero length dup")
+		}
+		nstart := dup[0]
+		nend := dup[cnt-1]
+
+		file, err := p.ReadFile(nstart.Filename)
+		if err != nil {
+			return err
+		}
+
+		lineStart, _ := blockLines(file, nstart.Pos, nend.End)
+		cl := clone{filename: nstart.Filename, lineStart: lineStart}
+		start := findLineBeg(file, nstart.Pos)
+		content := append(toWhitespace(file[start:nstart.Pos]), file[nstart.Pos:nend.End]...)
+		cl.fragment = deindent(content)
+		clones[i] = cl
+	}
+
+	sort.Sort(byNameAndLine(clones))
+	for _, cl := range clones {
+		fmt.Fprintf(p.w, "<h2>%s:%d</h2>\n<pre>%s</pre>\n", cl.filename, cl.lineStart, cl.fragment)
+	}
+	return nil
+}
+
+func (*html) PrintFooter() error { return nil }
+
+func findLineBeg(file []byte, index int) int {
+	for i := index; i >= 0; i-- {
+		if file[i] == '\n' {
+			return i + 1
+		}
+	}
+	return 0
+}
+
+func toWhitespace(str []byte) []byte {
+	var out []byte
+	for _, c := range bytes.Runes(str) {
+		if c == '\t' {
+			out = append(out, '\t')
+		} else {
+			out = append(out, ' ')
+		}
+	}
+	return out
+}
+
+func deindent(block []byte) []byte {
+	const maxVal = 99
+	min := maxVal
+	re := regexp.MustCompile(`(^|\n)(\t*)\S`)
+	for _, line := range re.FindAllSubmatch(block, -1) {
+		indent := line[2]
+		if len(indent) < min {
+			min = len(indent)
+		}
+	}
+	if min == 0 || min == maxVal {
+		return block
+	}
+	block = block[min:]
+Loop:
+	for i := 0; i < len(block); i++ {
+		if block[i] == '\n' && i != len(block)-1 {
+			for j := 0; j < min; j++ {
+				if block[i+j+1] != '\t' {
+					continue Loop
+				}
+			}
+			block = append(block[:i+1], block[i+1+min:]...)
+		}
+	}
+	return block
+}
diff --git a/vendor/github.com/golangci/dupl/printer/plumbing.go b/vendor/github.com/golangci/dupl/printer/plumbing.go
new file mode 100644
index 000000000..cf39d01b7
--- /dev/null
+++ b/vendor/github.com/golangci/dupl/printer/plumbing.go
@@ -0,0 +1,50 @@
+package printer
+
+import (
+	"sort"
+
+	"github.com/golangci/dupl/syntax"
+)
+
+type Clone clone
+
+func (c Clone) Filename() string {
+	return c.filename
+}
+
+func (c Clone) LineStart() int {
+	return c.lineStart
+}
+
+func (c Clone) LineEnd() int {
+	return c.lineEnd
+}
+
+type Issue struct {
+	From, To Clone
+}
+
+type Plumbing struct {
+	ReadFile
+}
+
+func NewPlumbing(fread ReadFile) *Plumbing {
+	return &Plumbing{fread}
+}
+
+func (p *Plumbing) MakeIssues(dups [][]*syntax.Node) ([]Issue, error) {
+	clones, err := prepareClonesInfo(p.ReadFile, dups)
+	if err != nil {
+		return nil, err
+	}
+	sort.Sort(byNameAndLine(clones))
+	var issues []Issue
+	for i, cl := range clones {
+		nextCl := clones[(i+1)%len(clones)]
+		issues = append(issues, Issue{
+			From: Clone(cl),
+			To:   Clone(nextCl),
+		})
+	}
+	return issues, nil
+}
diff --git a/vendor/github.com/golangci/dupl/printer/printer.go b/vendor/github.com/golangci/dupl/printer/printer.go
new file mode 100644
index 000000000..385217bfc
--- /dev/null
+++ b/vendor/github.com/golangci/dupl/printer/printer.go
@@ -0,0 +1,11 @@
+package printer
+
+import "github.com/golangci/dupl/syntax"
+
+type ReadFile func(filename string) ([]byte, error)
+
+type Printer interface {
+	PrintHeader() error
+	PrintClones(dups [][]*syntax.Node) error
+	PrintFooter() error
+}
diff --git a/vendor/github.com/golangci/dupl/printer/text.go b/vendor/github.com/golangci/dupl/printer/text.go
new file mode 100644
index 000000000..8359fa76f
--- /dev/null
+++ b/vendor/github.com/golangci/dupl/printer/text.go
@@ -0,0 +1,100 @@
+package printer
+
+import (
+	"fmt"
+	"io"
+	"sort"
+
+	"github.com/golangci/dupl/syntax"
+)
+
+type text struct {
+	cnt int
+	w   io.Writer
+	ReadFile
+}
+
+func NewText(w io.Writer, fread ReadFile) Printer {
+	return &text{w: w, ReadFile: fread}
+}
+
+func (p *text) PrintHeader() error { return nil }
+
+func (p *text) PrintClones(dups [][]*syntax.Node) error {
+	p.cnt++
+	fmt.Fprintf(p.w, "found %d clones:\n", len(dups))
+	clones, err := prepareClonesInfo(p.ReadFile, dups)
+	if err != nil {
+		return err
+	}
+	sort.Sort(byNameAndLine(clones))
+	for _, cl := range clones {
+		fmt.Fprintf(p.w, "  %s:%d,%d\n", cl.filename, cl.lineStart, cl.lineEnd)
+	}
+	return nil
+}
+
+func (p *text) PrintFooter() error {
+	_, err := fmt.Fprintf(p.w, "\nFound total %d clone groups.\n", p.cnt)
+	return err
+}
+
+func prepareClonesInfo(fread ReadFile, dups [][]*syntax.Node) ([]clone, error) {
+	clones := make([]clone, len(dups))
+	for i, dup := range dups {
+		cnt := len(dup)
+		if cnt == 0 {
+			panic("zero length dup")
+		}
+		nstart := dup[0]
+		nend := dup[cnt-1]
+
+		file, err := fread(nstart.Filename)
+		if err != nil {
+			return nil, err
+		}
+
+		cl := clone{filename: nstart.Filename}
+		cl.lineStart, cl.lineEnd = blockLines(file, nstart.Pos, nend.End)
+		clones[i] = cl
+	}
+	return clones, nil
+}
+
+func blockLines(file []byte, from, to int) (int, int) {
+	line := 1
+	lineStart, lineEnd := 0, 0
+	for offset, b := range file {
+		if b == '\n' {
+			line++
+		}
+		if offset == from {
+			lineStart = line
+		}
+		if offset == to-1 {
+			lineEnd = line
+			break
+		}
+	}
+	return lineStart, lineEnd
+}
+
+type clone struct {
+	filename  string
+	lineStart int
+	lineEnd   int
+	fragment  []byte
+}
+
+type byNameAndLine []clone
+
+func (c byNameAndLine) Len() int { return len(c) }
+
+func (c byNameAndLine) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
+
+func (c byNameAndLine) Less(i, j int) bool {
+	if c[i].filename == c[j].filename {
+		return c[i].lineStart < c[j].lineStart
+	}
+	return c[i].filename < c[j].filename
+}
author	Dmitry Vyukov <dvyukov@google.com>	2020-07-04 11:12:55 +0200
committer	Dmitry Vyukov <dvyukov@google.com>	2020-07-04 15:05:30 +0200
commit	c7d7f10bdff703e4a3c0414e8a33d4e45c91eb35 (patch)
tree	0dff0ee1f98dbfa3ad8776112053a450d176592b /vendor/github.com/golangci/dupl/printer
parent	9573094ce235bd9afe88f5da27a47dd6bcc1e13b (diff)