* Explicitly disable Git credential helper

If the user running Gitea has configured a credential helper, Git
credentials might leak out of Gitea.

There are two problems with credential helpers when combined with Gitea:

1. Credentials entered by a user when doing a migration or setting up a
   mirror will end up in the credential store. In the worst case, this
   is the plain text file ~/.git-credentials.
2. Credentials in the credential store will be used for migrations and
   mirrors by all users. For example, if user A sets up a mirror, their
   credentials will be stored. If user B later sets up a mirror from the
   same host and does not enter any credentials, user A's credentials
   will be used.

This PR prepends -c credential.helper= to all Git commands to clear the
list of helpers. This requires at least Git version 2.9, as previous
versions will try to load an empty helper instead. For more details, see
24321375cd

* Update git module

* Inital routes to git refs api

* Git refs API implementation

* Update swagger

* Fix copyright

* Make swagger happy add basic test

* Fix test

* Fix test again :)

* Add raw blob endpoint

This should make it possible to download raw blobs directly from
/:repo/:username/raw/blob/:sha1 URLs.

* fix: Make it work

* As an SHA-ID is no path getRefNameFromPath can't be used to verify
file specifying parameter
* added relevant change in go-gitea/git #132

Signed-off-by: Berengar W. Lehr <Berengar.Lehr@kompetenztest.de>

* Update Gopkg.lock

Can't update all vendors due to errors

Signed-off-by: Berengar W. Lehr <Berengar.Lehr@kompetenztest.de>

* style: Add Gitea copyright header

* feat: Added integration test for /repo/u/r/raw/blob

* fix: correct year in copyright header

* Update makefile to use dep

* Migrate to dep

* Fix some deps

* Try to find a better version for golang.org/x/net

* Try to find a better version for golang.org/x/oauth2

* Updated vendor code for code.gitea.io/git

* Display symlinks correctly for files and directories

* Added symlink tests

* Applied silverwinds stylesheet patch

Signed-off-by: Tris Forster <tris.git@shoddynet.org>

* Change how merged PR commits and diff are made

* Update code.gitea.io/git dependency

* Fix typo

* Remove unneeded local variable

* Serve .patch for pull requests

Closes #3259
Updates "git" module, for GetFormatPatch

* Handle io.Copy error

ref: https://github.com/go-gitea/gitea/pull/3190

* govendor update code.gitea.io/git

Signed-off-by: Duncan Ogilvie <mr.exodia.tpodt@gmail.com>

* Greatly improve memory usage

Signed-off-by: Duncan Ogilvie <mr.exodia.tpodt@gmail.com>

* Sort repository tree entries in natural way

* Fix sort for different length strings with first parts equal

* Improve test case

* Refactor return statements

* Update gitea/git dependency

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

* Update code.gitea.io/git

* Update function calls

* govendor fetch

Update vendored module code.gitea.io/git

* GPG commit validation

* Add translation

+ some little fix

* Move hash calc after retrieving of potential key + missing translation

* Add some little test

* git: delegate all server-side Git hooks (#1623)

* create hooks directories

* take control hooks back

* fix lint

* bug fixed and minor changes

* fix imports style

* fix migration scripts

and updating the vendor directory

* make releases faster than before and resolved #490

* fix comment

- Update import paths from github.com/go-gitea to code.gitea.io
- Fix import path for travis

See https://docs.travis-ci.com/user/languages/go#Go-Import-Path