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internal/modules/blob.go
3a50036d96eb14462e96598fd169d1c79264ac4b
· 1.9 KB · 86 lines
raw
| 1 | package modules |
| 2 | |
| 3 | import ( |
| 4 | "bytes" |
| 5 | "net/http" |
| 6 | "strings" |
| 7 | "unicode/utf8" |
| 8 | |
| 9 | "gsg/internal/core" |
| 10 | ) |
| 11 | |
| 12 | type Blob struct { |
| 13 | Path string |
| 14 | Size int |
| 15 | Binary bool |
| 16 | Lines []Line |
| 17 | } |
| 18 | |
| 19 | type Line struct { |
| 20 | N int |
| 21 | Text string |
| 22 | } |
| 23 | |
| 24 | func init() { core.Register("blob", blobMod) } |
| 25 | |
| 26 | // blob: file contents at Ctx.Path, split into numbered lines. |
| 27 | // Binary detection is git's own heuristic: a NUL in the first 8000 bytes. |
| 28 | func blobMod(c *core.Ctx, args ...string) (any, error) { |
| 29 | path := c.Path |
| 30 | if len(args) > 0 { |
| 31 | path = args[0] |
| 32 | } |
| 33 | if path == "" { |
| 34 | return nil, core.Errorf(http.StatusNotFound, "no path") |
| 35 | } |
| 36 | raw, err := c.Repo.Blob(c.Commit, path) |
| 37 | if err != nil { |
| 38 | return nil, core.Errorf(http.StatusNotFound, "no such file %q", path) |
| 39 | } |
| 40 | b := Blob{Path: path, Size: len(raw)} |
| 41 | |
| 42 | head := raw |
| 43 | if len(head) > 8000 { |
| 44 | head = head[:8000] |
| 45 | } |
| 46 | if bytes.IndexByte(head, 0) >= 0 || !utf8.Valid(head) { |
| 47 | b.Binary = true |
| 48 | return b, nil |
| 49 | } |
| 50 | for i, t := range strings.Split(strings.TrimRight(string(raw), "\n"), "\n") { |
| 51 | b.Lines = append(b.Lines, Line{N: i + 1, Text: t}) |
| 52 | } |
| 53 | return b, nil |
| 54 | } |
| 55 | |
| 56 | // RawBlob is the unmodified object, for the /raw/ route. Kept separate from |
| 57 | // Blob so the line-split view and the byte stream cache independently. |
| 58 | type RawBlob struct { |
| 59 | Path string |
| 60 | Data []byte |
| 61 | Binary bool |
| 62 | } |
| 63 | |
| 64 | func (r RawBlob) Bytes() []byte { return r.Data } |
| 65 | func (r RawBlob) IsBinary() bool { return r.Binary } |
| 66 | |
| 67 | func init() { core.Register("blobraw", blobRawMod) } |
| 68 | |
| 69 | func blobRawMod(c *core.Ctx, args ...string) (any, error) { |
| 70 | path := c.Path |
| 71 | if len(args) > 0 { |
| 72 | path = args[0] |
| 73 | } |
| 74 | if path == "" { |
| 75 | return nil, core.Errorf(http.StatusNotFound, "no path") |
| 76 | } |
| 77 | raw, err := c.Repo.Blob(c.Commit, path) |
| 78 | if err != nil { |
| 79 | return nil, core.Errorf(http.StatusNotFound, "no such file %q", path) |
| 80 | } |
| 81 | head := raw |
| 82 | if len(head) > 8000 { |
| 83 | head = head[:8000] |
| 84 | } |
| 85 | return RawBlob{Path: path, Data: raw, Binary: bytes.IndexByte(head, 0) >= 0}, nil |
| 86 | } |