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tangled.org
1package knotserver
2
3import (
4 "bytes"
5 "io"
6 "log"
7 "net/http"
8 "strings"
9
10 "github.com/icyphox/bild/git"
11)
12
13func (h *Handle) listFiles(files []git.NiceTree, data map[string]any, w http.ResponseWriter) {
14 data["files"] = files
15 data["meta"] = h.c.Meta
16
17 writeJSON(w, data)
18 return
19}
20
21func countLines(r io.Reader) (int, error) {
22 buf := make([]byte, 32*1024)
23 bufLen := 0
24 count := 0
25 nl := []byte{'\n'}
26
27 for {
28 c, err := r.Read(buf)
29 if c > 0 {
30 bufLen += c
31 }
32 count += bytes.Count(buf[:c], nl)
33
34 switch {
35 case err == io.EOF:
36 /* handle last line not having a newline at the end */
37 if bufLen >= 1 && buf[(bufLen-1)%(32*1024)] != '\n' {
38 count++
39 }
40 return count, nil
41 case err != nil:
42 return 0, err
43 }
44 }
45}
46
47func (h *Handle) showFile(content string, data map[string]any, w http.ResponseWriter) {
48 lc, err := countLines(strings.NewReader(content))
49 if err != nil {
50 // Non-fatal, we'll just skip showing line numbers in the template.
51 log.Printf("counting lines: %s", err)
52 }
53
54 lines := make([]int, lc)
55 if lc > 0 {
56 for i := range lines {
57 lines[i] = i + 1
58 }
59 }
60
61 data["linecount"] = lines
62 data["content"] = content
63 data["meta"] = h.c.Meta
64
65 writeJSON(w, data)
66 return
67}
68
69func (h *Handle) showRaw(content string, w http.ResponseWriter) {
70 w.WriteHeader(http.StatusOK)
71 w.Header().Set("Content-Type", "text/plain")
72 w.Write([]byte(content))
73 return
74}