Just use a slice when rendering file (#16774)
Highlight currently uses a map which is memory inefficient. Switch to use a slice instead. Signed-off-by: Andrew Thornton <art27@cantab.net>
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zeripath
GitHub
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73defbbd1c
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f31e7a67cf
@ -116,8 +116,8 @@ func Code(fileName, code string) string {
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return strings.TrimSuffix(htmlbuf.String(), "\n")
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}
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// File returns map with line lumbers and HTML version of code with chroma syntax highlighting classes
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func File(numLines int, fileName string, code []byte) map[int]string {
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// File returns a slice of chroma syntax highlighted lines of code
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func File(numLines int, fileName string, code []byte) []string {
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NewContext()
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if len(code) > sizeLimit {
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@ -171,9 +171,8 @@ func File(numLines int, fileName string, code []byte) map[int]string {
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finalNewLine = code[len(code)-1] == '\n'
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}
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m := make(map[int]string, numLines)
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for k, v := range strings.SplitN(htmlbuf.String(), "\n", numLines) {
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line := k + 1
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m := make([]string, 0, numLines)
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for _, v := range strings.SplitN(htmlbuf.String(), "\n", numLines) {
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content := string(v)
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//need to keep lines that are only \n so copy/paste works properly in browser
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if content == "" {
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@ -183,26 +182,25 @@ func File(numLines int, fileName string, code []byte) map[int]string {
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}
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content = strings.TrimSuffix(content, `<span class="w">`)
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content = strings.TrimPrefix(content, `</span>`)
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m[line] = content
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m = append(m, content)
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}
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if finalNewLine {
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m[numLines+1] = "<span class=\"w\">\n</span>"
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m = append(m, "<span class=\"w\">\n</span>")
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}
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return m
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}
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// return unhiglighted map
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func plainText(code string, numLines int) map[int]string {
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m := make(map[int]string, numLines)
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for k, v := range strings.SplitN(string(code), "\n", numLines) {
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line := k + 1
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func plainText(code string, numLines int) []string {
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m := make([]string, 0, numLines)
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for _, v := range strings.SplitN(string(code), "\n", numLines) {
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content := string(v)
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//need to keep lines that are only \n so copy/paste works properly in browser
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if content == "" {
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content = "\n"
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}
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m[line] = gohtml.EscapeString(content)
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m = append(m, gohtml.EscapeString(content))
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}
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return m
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}
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@ -19,7 +19,7 @@ func TestFile(t *testing.T) {
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numLines int
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fileName string
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code string
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want map[int]string
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want []string
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}{
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{
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name: ".drone.yml",
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@ -38,22 +38,22 @@ steps:
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- go build -v
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- go test -v -race -coverprofile=coverage.txt -covermode=atomic
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`,
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want: map[int]string{
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1: `<span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l">pipeline</span>`,
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2: `<span class="w"></span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">default</span>`,
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3: `<span class="w">
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want: []string{
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`<span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l">pipeline</span>`,
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`<span class="w"></span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">default</span>`,
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`<span class="w">
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</span>`,
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4: `<span class="w"></span><span class="nt">steps</span><span class="p">:</span>`,
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5: `<span class="w"></span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">test</span>`,
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6: `<span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l">golang:1.13</span>`,
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7: `<span class="w"> </span><span class="nt">environment</span><span class="p">:</span>`,
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8: `<span class="w"></span><span class="w"> </span><span class="nt">GOPROXY</span><span class="p">:</span><span class="w"> </span><span class="l">https://goproxy.cn</span>`,
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9: `<span class="w"> </span><span class="nt">commands</span><span class="p">:</span>`,
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10: `<span class="w"></span><span class="w"> </span>- <span class="l">go get -u</span>`,
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11: `<span class="w"> </span>- <span class="l">go build -v</span>`,
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12: `<span class="w"> </span>- <span class="l">go test -v -race -coverprofile=coverage.txt -covermode=atomic</span><span class="w">
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`<span class="w"></span><span class="nt">steps</span><span class="p">:</span>`,
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`<span class="w"></span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">test</span>`,
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`<span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l">golang:1.13</span>`,
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`<span class="w"> </span><span class="nt">environment</span><span class="p">:</span>`,
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`<span class="w"></span><span class="w"> </span><span class="nt">GOPROXY</span><span class="p">:</span><span class="w"> </span><span class="l">https://goproxy.cn</span>`,
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`<span class="w"> </span><span class="nt">commands</span><span class="p">:</span>`,
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`<span class="w"></span><span class="w"> </span>- <span class="l">go get -u</span>`,
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`<span class="w"> </span>- <span class="l">go build -v</span>`,
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`<span class="w"> </span>- <span class="l">go test -v -race -coverprofile=coverage.txt -covermode=atomic</span><span class="w">
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</span>`,
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13: `<span class="w">
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`<span class="w">
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</span>`,
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},
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},
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@ -74,21 +74,21 @@ steps:
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- go build -v
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- go test -v -race -coverprofile=coverage.txt -covermode=atomic
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`,
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want: map[int]string{
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1: `<span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l">pipeline</span>`,
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2: `<span class="w"></span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">default </span>`,
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3: `<span class="w">
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want: []string{
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`<span class="nt">kind</span><span class="p">:</span><span class="w"> </span><span class="l">pipeline</span>`,
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`<span class="w"></span><span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">default </span>`,
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`<span class="w">
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</span>`,
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4: `<span class="w"></span><span class="nt">steps</span><span class="p">:</span>`,
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5: `<span class="w"></span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">test</span>`,
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6: `<span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l">golang:1.13</span>`,
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7: `<span class="w"> </span><span class="nt">environment</span><span class="p">:</span>`,
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8: `<span class="w"></span><span class="w"> </span><span class="nt">GOPROXY</span><span class="p">:</span><span class="w"> </span><span class="l">https://goproxy.cn</span>`,
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9: `<span class="w"> </span><span class="nt">commands</span><span class="p">:</span>`,
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10: `<span class="w"></span><span class="w"> </span>- <span class="l">go get -u</span>`,
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11: `<span class="w"> </span>- <span class="l">go build -v</span>`,
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12: `<span class="w"> </span>- <span class="l">go test -v -race -coverprofile=coverage.txt -covermode=atomic</span>`,
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13: `<span class="w"> </span>`,
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`<span class="w"></span><span class="nt">steps</span><span class="p">:</span>`,
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`<span class="w"></span>- <span class="nt">name</span><span class="p">:</span><span class="w"> </span><span class="l">test</span>`,
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`<span class="w"> </span><span class="nt">image</span><span class="p">:</span><span class="w"> </span><span class="l">golang:1.13</span>`,
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`<span class="w"> </span><span class="nt">environment</span><span class="p">:</span>`,
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`<span class="w"></span><span class="w"> </span><span class="nt">GOPROXY</span><span class="p">:</span><span class="w"> </span><span class="l">https://goproxy.cn</span>`,
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`<span class="w"> </span><span class="nt">commands</span><span class="p">:</span>`,
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`<span class="w"></span><span class="w"> </span>- <span class="l">go get -u</span>`,
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`<span class="w"> </span>- <span class="l">go build -v</span>`,
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`<span class="w"> </span>- <span class="l">go test -v -race -coverprofile=coverage.txt -covermode=atomic</span>`,
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`<span class="w"> </span>`,
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},
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},
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}
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@ -99,7 +99,8 @@
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{{else}}
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<table>
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<tbody>
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{{range $line, $code := .FileContent}}
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{{range $idx, $code := .FileContent}}
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{{$line := Add $idx 1}}
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<tr>
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<td id="L{{$line}}" class="lines-num">
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<span id="L{{$line}}" data-line-number="{{$line}}"></span>
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