gogit

Pure Go read access to a git repository.

State: Not really actively maintained, but used in production site. Without warranty, of course.
Maturity level: 4/5 (works well in all tested repositories, there will be no API change (unless a critical flaw is found), few corner cases not implemented yet)
License: Free software (MIT License)
Installation: Just run go get github.com/speedata/gogit
API documentation: https://godoc.org/github.com/speedata/gogit
Contact: [email protected], @speedata
Repository: https://github.com/speedata/gogit
Dependencies: None
Contribution: We like to get any kind of feedback (success stories, bug reports, merge requests, ...)

Example

Sample application to list the latest directory (recursively):

package main

import (
    "github.com/speedata/gogit"
    "log"
    "os"
    "path"
    "path/filepath"
)

func walk(dirname string, te *gogit.TreeEntry) int {
    log.Println(path.Join(dirname, te.Name))
    return 0
}

func main() {
    wd, err := os.Getwd()
    if err != nil {
        log.Fatal(err)
    }
    repository, err := gogit.OpenRepository(filepath.Join(wd, "src/github.com/speedata/gogit/_testdata/testrepo.git"))
    if err != nil {
        log.Fatal(err)
    }
    ref, err := repository.LookupReference("HEAD")
    if err != nil {
        log.Fatal(err)
    }
    ci, err := repository.LookupCommit(ref.Oid)
    if err != nil {
        log.Fatal(err)
    }
    ci.Tree.Walk(walk)
}

Sample application

We use gogit as the backend in https://ctanmirror.speedata.de. This is a mirror of CTAN, the comprehensive TeX archive network with approx. 30GB of data. We rsync it from the main site at ctan.org every night and add the changes to a git repository (with the regular git command). Then we use this web front end to retrieve the historic files.

The git repository is around 500 GB (May 2017) and dates back to 2013.