mrcharles
10e930e46d
Go CLI that turns the markdown currency of this stack (Redmine notes, Discourse posts, briefing output) into typeset PDFs: two embedded typst templates (report with title page/TOC/headers, dense brief), front-matter (title/subtitle/author/date/classification/template), GFM tables, and bar charts rendered in pure Go (go-chart) from fenced chart data blocks. Engine is a prebuilt typst 0.15.1 container pinned by digest and run --network none; PDF bytes to stdout or -o. Exit codes 0/1/2. All dev in docker (dev.sh/Makefile); unit tests + golden typst fixtures plus a host-side smoke against the real engine container. Generated with Crush Assisted-by: Crush:glm-5.2
50 lines
875 B
Go
50 lines
875 B
Go
package chart
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import (
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"bufio"
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"io"
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"os"
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)
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// ReadLines reads a file and calls the handler for each line.
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func ReadLines(filePath string, handler func(string) error) error {
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f, err := os.Open(filePath)
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if err != nil {
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return err
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}
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defer f.Close()
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scanner := bufio.NewScanner(f)
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for scanner.Scan() {
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line := scanner.Text()
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err = handler(line)
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if err != nil {
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return err
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}
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}
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return nil
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}
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// ReadChunks reads a file in `chunkSize` pieces, dispatched to the handler.
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func ReadChunks(filePath string, chunkSize int, handler func([]byte) error) error {
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f, err := os.Open(filePath)
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if err != nil {
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return err
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}
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defer f.Close()
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chunk := make([]byte, chunkSize)
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for {
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readBytes, err := f.Read(chunk)
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if err == io.EOF {
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break
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}
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readData := chunk[:readBytes]
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err = handler(readData)
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if err != nil {
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return err
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}
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}
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return nil
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}
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