vole
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A free and open-source forge that lives in your Git repo.
Merge change request 01M70WES5ZZDJ6RP226WB11BBZ: Let people rename and remove their own passkeys
keenan · 21m ago
4b8c9e1d
| 1 | package git |
| 2 | |
| 3 | // The sizes and counts a quota check needs. They are one `git` invocation each so |
| 4 | // a refused push costs a bounded amount of work. |
| 5 | |
| 6 | import ( |
| 7 | "bytes" |
| 8 | "fmt" |
| 9 | "strconv" |
| 10 | "strings" |
| 11 | ) |
| 12 | |
| 13 | // EntrySize is one blob under a tree, with the number of bytes it holds. |
| 14 | type EntrySize struct { |
| 15 | Entry |
| 16 | Size int64 |
| 17 | } |
| 18 | |
| 19 | // LsTreeSizes lists every blob under treeish recursively, with sizes. It is |
| 20 | // LsTreeR plus `-l`, which is what a metadata quota sums. |
| 21 | func (r *Repo) LsTreeSizes(treeish string) ([]EntrySize, error) { |
| 22 | out, errs, err := r.run(nil, "ls-tree", "-r", "-l", "-z", treeish) |
| 23 | if err != nil { |
| 24 | return nil, fmt.Errorf("ls-tree -r -l %q: %w: %s", treeish, err, errs) |
| 25 | } |
| 26 | var es []EntrySize |
| 27 | for _, rec := range bytes.Split(out, []byte{0}) { |
| 28 | if len(rec) == 0 { |
| 29 | continue |
| 30 | } |
| 31 | tab := bytes.IndexByte(rec, '\t') |
| 32 | if tab < 0 { |
| 33 | return nil, fmt.Errorf("bad ls-tree record %q", rec) |
| 34 | } |
| 35 | // "<mode> SP <type> SP <sha> SP* <size> TAB <path>" |
| 36 | f := strings.Fields(string(rec[:tab])) |
| 37 | if len(f) < 4 { |
| 38 | return nil, fmt.Errorf("bad ls-tree record %q", rec) |
| 39 | } |
| 40 | size, _ := strconv.ParseInt(f[3], 10, 64) |
| 41 | es = append(es, EntrySize{ |
| 42 | Entry: Entry{Mode: f[0], Type: f[1], SHA: f[2], Name: string(rec[tab+1:])}, |
| 43 | Size: size, |
| 44 | }) |
| 45 | } |
| 46 | return es, nil |
| 47 | } |
| 48 | |
| 49 | // RefCount counts the branches and tags. It is a count rather than a listing: the |
| 50 | // quota check must see every ref, while the pages deliberately cap what they show. |
| 51 | func (r *Repo) RefCount() (int, error) { |
| 52 | out, errs, err := r.run(nil, "for-each-ref", "--format=%(refname)", "refs/heads", "refs/tags") |
| 53 | if err != nil { |
| 54 | return 0, fmt.Errorf("for-each-ref: %w: %s", err, errs) |
| 55 | } |
| 56 | n := 0 |
| 57 | for _, line := range strings.Split(string(out), "\n") { |
| 58 | if strings.TrimSpace(line) != "" { |
| 59 | n++ |
| 60 | } |
| 61 | } |
| 62 | return n, nil |
| 63 | } |
| 64 | |
| 65 | // DiskUsage is how many bytes the repository's objects take on disk: the pack |
| 66 | // files plus loose objects plus any garbage git has left. It is what a repository |
| 67 | // size quota compares against. |
| 68 | func (r *Repo) DiskUsage() (int64, error) { |
| 69 | out, errs, err := r.run(nil, "count-objects", "-v") |
| 70 | if err != nil { |
| 71 | return 0, fmt.Errorf("count-objects: %w: %s", err, errs) |
| 72 | } |
| 73 | var total int64 |
| 74 | for _, line := range strings.Split(string(out), "\n") { |
| 75 | k, v, ok := strings.Cut(strings.TrimSpace(line), ":") |
| 76 | if !ok { |
| 77 | continue |
| 78 | } |
| 79 | n, err := strconv.ParseInt(strings.TrimSpace(v), 10, 64) |
| 80 | if err != nil { |
| 81 | continue |
| 82 | } |
| 83 | switch k { |
| 84 | case "size", "size-pack", "size-garbage": |
| 85 | // KiB, per git-count-objects(1). |
| 86 | total += n << 10 |
| 87 | } |
| 88 | } |
| 89 | return total, nil |
| 90 | } |
| 91 |