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https://github.com/mikefarah/yq.git
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5c302ee313
writeString converted every string to []byte before calling io.Writer.Write, which Go escape analysis reports as escaping to the heap. io.WriteString uses the io.StringWriter fast path when available (the standard printer writer is a *bufio.Writer) and falls back to Write([]byte(txt)) otherwise. Fixes #2807 Co-authored-by: Pablo Garcia <pablito@MacBook-Neo-de-Pablo.local>
92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
package yqlib
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import (
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"bufio"
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"container/list"
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"errors"
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"fmt"
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"io"
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"os"
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)
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// filenameAliases maps real file paths to display names.
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// Used by front matter handling to preserve original filenames
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// when the actual content is read from temporary files.
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var filenameAliases = map[string]string{}
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// SetFilenameAlias registers a display name for a file path so that
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// the filename operator returns the original name instead of a temp path.
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func SetFilenameAlias(realPath string, displayName string) {
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filenameAliases[realPath] = displayName
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}
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// ClearFilenameAliases removes all filename aliases.
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func ClearFilenameAliases() {
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filenameAliases = map[string]string{}
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}
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func resolveFilename(filename string) string {
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if alias, ok := filenameAliases[filename]; ok {
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return alias
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}
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return filename
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}
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func readStream(filename string) (io.Reader, error) {
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var reader *bufio.Reader
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if filename == "-" {
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reader = bufio.NewReader(os.Stdin)
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} else {
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// ignore CWE-22 gosec issue - that's more targeted for http based apps that run in a public directory,
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// and ensuring that it's not possible to give a path to a file outside that directory.
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file, err := os.Open(filename) // #nosec
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if err != nil {
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return nil, err
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}
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reader = bufio.NewReader(file)
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}
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return reader, nil
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}
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func writeString(writer io.Writer, txt string) error {
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_, errorWriting := io.WriteString(writer, txt)
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return errorWriting
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}
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func ReadDocuments(reader io.Reader, decoder Decoder) (*list.List, error) {
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return readDocuments(reader, "", 0, decoder)
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}
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func readDocuments(reader io.Reader, filename string, fileIndex int, decoder Decoder) (*list.List, error) {
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filename = resolveFilename(filename)
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err := decoder.Init(reader)
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if err != nil {
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return nil, err
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}
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inputList := list.New()
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var currentIndex uint
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for {
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candidateNode, errorReading := decoder.Decode()
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if errors.Is(errorReading, io.EOF) {
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switch reader := reader.(type) {
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case *os.File:
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safelyCloseFile(reader)
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}
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return inputList, nil
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} else if errorReading != nil {
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return nil, fmt.Errorf("bad file '%v': %w", filename, errorReading)
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}
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candidateNode.document = currentIndex
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candidateNode.filename = filename
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candidateNode.fileIndex = fileIndex
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candidateNode.EvaluateTogether = true
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inputList.PushBack(candidateNode)
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currentIndex = currentIndex + 1
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}
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}
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