templates/swagger/v1_json.tmpl updated with `make generate-swagger`
(cherry picked from commit 88899c492e)
(cherry picked from commit 7171bd9617)
(cherry picked from commit 1a742446c1)
(cherry picked from commit 132342ae8d)
(cherry picked from commit b47b815fbe)
(cherry picked from commit 2dbb52c8ec)
(cherry picked from commit c846de4322)
(cherry picked from commit c3d1ad7bbc)
(cherry picked from commit 972c772c0e)
Backport #24161 by @wxiaoguang
## Before
* The renaming detection is wrong (eg: pasting a new name into the input
doesn't trigger the detection)
* The renaming prompt layout is not good
* Some MaxSize/maxlength rules is missing
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
The API to create tokens is missing the ability to set the required
scopes for tokens, and to show them on the API and on the UI.
This PR adds this functionality.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Add a new "exclusive" option per label. This makes it so that when the
label is named `scope/name`, no other label with the same `scope/`
prefix can be set on an issue.
The scope is determined by the last occurence of `/`, so for example
`scope/alpha/name` and `scope/beta/name` are considered to be in
different scopes and can coexist.
Exclusive scopes are not enforced by any database rules, however they
are enforced when editing labels at the models level, automatically
removing any existing labels in the same scope when either attaching a
new label or replacing all labels.
In menus use a circle instead of checkbox to indicate they function as
radio buttons per scope. Issue filtering by label ensures that only a
single scoped label is selected at a time. Clicking with alt key can be
used to remove a scoped label, both when editing individual issues and
batch editing.
Label rendering refactor for consistency and code simplification:
* Labels now consistently have the same shape, emojis and tooltips
everywhere. This includes the label list and label assignment menus.
* In label list, show description below label same as label menus.
* Don't use exactly black/white text colors to look a bit nicer.
* Simplify text color computation. There is no point computing luminance
in linear color space, as this is a perceptual problem and sRGB is
closer to perceptually linear.
* Increase height of label assignment menus to show more labels. Showing
only 3-4 labels at a time leads to a lot of scrolling.
* Render all labels with a new RenderLabel template helper function.
Label creation and editing in multiline modal menu:
* Change label creation to open a modal menu like label editing.
* Change menu layout to place name, description and colors on separate
lines.
* Don't color cancel button red in label editing modal menu.
* Align text to the left in model menu for better readability and
consistent with settings layout elsewhere.
Custom exclusive scoped label rendering:
* Display scoped label prefix and suffix with slightly darker and
lighter background color respectively, and a slanted edge between them
similar to the `/` symbol.
* In menus exclusive labels are grouped with a divider line.
---------
Co-authored-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
Allow back-dating user creation via the `adminCreateUser` API operation.
`CreateUserOption` now has an optional field `created_at`, which can
contain a datetime-formatted string. If this field is present, the
user's `created_unix` database field will be updated to its value.
This is important for Blender's migration of users from Phabricator to
Gitea. There are many users, and the creation timestamp of their account
can give us some indication as to how long someone's been part of the
community.
The back-dating is done in a separate query that just updates the user's
`created_unix` field. This was the easiest and cleanest way I could
find, as in the initial `INSERT` query the field always is set to "now".
Add setting to allow edits by maintainers by default, to avoid having to
often ask contributors to enable this.
This also reorganizes the pull request settings UI to improve clarity.
It was unclear which checkbox options were there to control available
merge styles and which merge styles they correspond to.
Now there is a "Merge Styles" label followed by the merge style options
with the same name as in other menus. The remaining checkboxes were
moved to the bottom, ordered rougly by typical order of operations.
---------
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
It seems `VisibleType` is only designed for org at first. But it is also
used by user's visibility now.
So I think `org_type.go` can be changed to `visible_type.go`.
partially fix#19345
This PR add some `Link` methods for different objects. The `Link`
methods are not different from `HTMLURL`, they are lack of the absolute
URL. And most of UI `HTMLURL` have been replaced to `Link` so that users
can visit them from a different domain or IP.
This PR also introduces a new javascript configuration
`window.config.reqAppUrl` which is different from `appUrl` which is
still an absolute url but the domain has been replaced to the current
requested domain.
The `commit_id` property name is the same as equivalent functionality in
GitHub. If the action was not caused by a commit, an empty string is
used.
This can for example be used to automatically add a Resolved label to an
issue fixed by a commit, or clear it when the issue is reopened.
This PR introduce glob match for protected branch name. The separator is
`/` and you can use `*` matching non-separator chars and use `**` across
separator.
It also supports input an exist or non-exist branch name as matching
condition and branch name condition has high priority than glob rule.
Should fix#2529 and #15705
screenshots
<img width="1160" alt="image"
src="https://user-images.githubusercontent.com/81045/205651179-ebb5492a-4ade-4bb4-a13c-965e8c927063.png">
Co-authored-by: zeripath <art27@cantab.net>
Push mirrors `sync_on_commit` option was added to the web interface in
v1.18.0. However, it's not added to the API. This PR updates the API
endpoint.
Fixes#22267
Also, I think this should be backported to 1.18
Close#14601Fix#3690
Revive of #14601.
Updated to current code, cleanup and added more read/write checks.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Signed-off-by: Andre Bruch <ab@andrebruch.com>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Norwin <git@nroo.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Change all license headers to comply with REUSE specification.
Fix#16132
Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
* Closes#19997
Adds an `updated_at` time field to the `PullReview` API object to
specify when the pull request review's state changed.
Signed-off-by: Yarden Shoham <hrsi88@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Close https://github.com/go-gitea/gitea/issues/21640
Before: Gitea can create users like ".xxx" or "x..y", which is not
ideal, it's already a consensus that dot filenames have special
meanings, and `a..b` is a confusing name when doing cross repo compare.
After: stricter
Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: delvh <dev.lh@web.de>
_This is a different approach to #20267, I took the liberty of adapting
some parts, see below_
## Context
In some cases, a weebhook endpoint requires some kind of authentication.
The usual way is by sending a static `Authorization` header, with a
given token. For instance:
- Matrix expects a `Bearer <token>` (already implemented, by storing the
header cleartext in the metadata - which is buggy on retry #19872)
- TeamCity #18667
- Gitea instances #20267
- SourceHut https://man.sr.ht/graphql.md#authentication-strategies (this
is my actual personal need :)
## Proposed solution
Add a dedicated encrypt column to the webhook table (instead of storing
it as meta as proposed in #20267), so that it gets available for all
present and future hook types (especially the custom ones #19307).
This would also solve the buggy matrix retry #19872.
As a first step, I would recommend focusing on the backend logic and
improve the frontend at a later stage. For now the UI is a simple
`Authorization` field (which could be later customized with `Bearer` and
`Basic` switches):
![2022-08-23-142911](https://user-images.githubusercontent.com/3864879/186162483-5b721504-eef5-4932-812e-eb96a68494cc.png)
The header name is hard-coded, since I couldn't fine any usecase
justifying otherwise.
## Questions
- What do you think of this approach? @justusbunsi @Gusted @silverwind
- ~~How are the migrations generated? Do I have to manually create a new
file, or is there a command for that?~~
- ~~I started adding it to the API: should I complete it or should I
drop it? (I don't know how much the API is actually used)~~
## Done as well:
- add a migration for the existing matrix webhooks and remove the
`Authorization` logic there
_Closes #19872_
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Gusted <williamzijl7@hotmail.com>
Co-authored-by: delvh <dev.lh@web.de>
The OAuth spec [defines two types of
client](https://datatracker.ietf.org/doc/html/rfc6749#section-2.1),
confidential and public. Previously Gitea assumed all clients to be
confidential.
> OAuth defines two client types, based on their ability to authenticate
securely with the authorization server (i.e., ability to
> maintain the confidentiality of their client credentials):
>
> confidential
> Clients capable of maintaining the confidentiality of their
credentials (e.g., client implemented on a secure server with
> restricted access to the client credentials), or capable of secure
client authentication using other means.
>
> **public
> Clients incapable of maintaining the confidentiality of their
credentials (e.g., clients executing on the device used by the resource
owner, such as an installed native application or a web browser-based
application), and incapable of secure client authentication via any
other means.**
>
> The client type designation is based on the authorization server's
definition of secure authentication and its acceptable exposure levels
of client credentials. The authorization server SHOULD NOT make
assumptions about the client type.
https://datatracker.ietf.org/doc/html/rfc8252#section-8.4
> Authorization servers MUST record the client type in the client
registration details in order to identify and process requests
accordingly.
Require PKCE for public clients:
https://datatracker.ietf.org/doc/html/rfc8252#section-8.1
> Authorization servers SHOULD reject authorization requests from native
apps that don't use PKCE by returning an error message
Fixes#21299
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Fixes#21379
The commits are capped by `setting.UI.FeedMaxCommitNum` so
`len(commits)` is not the correct number. So this PR adds a new
`TotalCommits` field.
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This adds an api endpoint `/files` to PRs that allows to get a list of changed files.
built upon #18228, reviews there are included
closes https://github.com/go-gitea/gitea/issues/654
Co-authored-by: Anton Bracke <anton@ju60.de>
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This PR would presumably
Fix#20522Fix#18773Fix#19069Fix#21077Fix#13622
-----
1. Check whether unit type is currently enabled
2. Check if it _will_ be enabled via opt
3. Allow modification as necessary
Signed-off-by: jolheiser <john.olheiser@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>
Both allow only limited characters. If you input more, you will get a error
message. So it make sense to limit the characters of the input fields.
Slightly relax the MaxSize of repo's Description and Website
Add support for triggering webhook notifications on wiki changes.
This PR contains frontend and backend for webhook notifications on wiki actions (create a new page, rename a page, edit a page and delete a page). The frontend got a new checkbox under the Custom Event -> Repository Events section. There is only one checkbox for create/edit/rename/delete actions, because it makes no sense to separate it and others like releases or packages follow the same schema.
![image](https://user-images.githubusercontent.com/121972/177018803-26851196-831f-4fde-9a4c-9e639b0e0d6b.png)
The actions itself are separated, so that different notifications will be executed (with the "action" field). All the webhook receivers implement the new interface method (Wiki) and the corresponding tests.
When implementing this, I encounter a little bug on editing a wiki page. Creating and editing a wiki page is technically the same action and will be handled by the ```updateWikiPage``` function. But the function need to know if it is a new wiki page or just a change. This distinction is done by the ```action``` parameter, but this will not be sent by the frontend (on form submit). This PR will fix this by adding the ```action``` parameter with the values ```_new``` or ```_edit```, which will be used by the ```updateWikiPage``` function.
I've done integration tests with matrix and gitea (http).
![image](https://user-images.githubusercontent.com/121972/177018795-eb5cdc01-9ba3-483e-a6b7-ed0e313a71fb.png)
Fix#16457
Signed-off-by: Aaron Fischer <mail@aaron-fischer.net>
* feat: extend issue template for yaml
* feat: support yaml template
* feat: render form to markdown
* feat: support yaml template for pr
* chore: rename to Fields
* feat: template unmarshal
* feat: split template
* feat: render to markdown
* feat: use full name as template file name
* chore: remove useless file
* feat: use dropdown of fomantic ui
* feat: update input style
* docs: more comments
* fix: render text without render
* chore: fix lint error
* fix: support use description as about in markdown
* fix: add field class in form
* chore: generate swagger
* feat: validate template
* feat: support is_nummber and regex
* test: fix broken unit tests
* fix: ignore empty body of md template
* fix: make multiple easymde editors work in one page
* feat: better UI
* fix: js error in pr form
* chore: generate swagger
* feat: support regex validation
* chore: generate swagger
* fix: refresh each markdown editor
* chore: give up required validation
* fix: correct issue template candidates
* fix: correct checkboxes style
* chore: ignore .hugo_build.lock in docs
* docs: separate out a new doc for merge templates
* docs: introduce syntax of yaml template
* feat: show a alert for invalid templates
* test: add case for a valid template
* fix: correct attributes of required checkbox
* fix: add class not-under-easymde for dropzone
* fix: use more back-quotes
* chore: remove translation in zh-CN
* fix EasyMDE statusbar margin
* fix: remove repeated blocks
* fix: reuse regex for quotes
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
- Add a new push mirror to specific repository
- Sync now ( send all the changes to the configured push mirrors )
- Get list of all push mirrors of a repository
- Get a push mirror by ID
- Delete push mirror by ID
Signed-off-by: Mohamed Sekour <mohamed.sekour@exfo.com>
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: zeripath <art27@cantab.net>
* Add latest commit's SHA to content response
- When requesting the contents of a filepath, add the latest commit's
SHA to the requested file.
- Resolves#12840
* Add swagger
* Fix NPE
* Fix tests
* Hook into LastCommitCache
* Move AddLastCommitCache to a common nogogit and gogit file
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Prevent NPE
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
`login_name` (Authentication Sign-in Name) is not included in the response of `adminUserCreate` API.
This PR is to return user-specified `login_name` if there is one.
`PATCH /repos/{owner}/{repo}` API allows users to update `allow_rebase_update`, `default_delete_branch_after_merge`, but `GET /repos/{owner}/{repo}` API does not return these two options, and API users has no other ways to find the state of these two options.
This PR add `allow_rebase_update`, `default_delete_branch_after_merge` to repository query api response.
* go.mod: add go-fed/{httpsig,activity/pub,activity/streams} dependency
go get github.com/go-fed/activity/streams@master
go get github.com/go-fed/activity/pub@master
go get github.com/go-fed/httpsig@master
* activitypub: implement /api/v1/activitypub/user/{username} (#14186)
Return informations regarding a Person (as defined in ActivityStreams
https://www.w3.org/TR/activitystreams-vocabulary/#dfn-person).
Refs: https://github.com/go-gitea/gitea/issues/14186
Signed-off-by: Loïc Dachary <loic@dachary.org>
* activitypub: add the public key to Person (#14186)
Refs: https://github.com/go-gitea/gitea/issues/14186
Signed-off-by: Loïc Dachary <loic@dachary.org>
* activitypub: go-fed conformant Clock instance
Signed-off-by: Loïc Dachary <loic@dachary.org>
* activitypub: signing http client
Signed-off-by: Loïc Dachary <loic@dachary.org>
* activitypub: implement the ReqSignature middleware
Signed-off-by: Loïc Dachary <loic@dachary.org>
* activitypub: hack_16834
Signed-off-by: Loïc Dachary <loic@dachary.org>
* Fix CI checks-backend errors with go mod tidy
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Change 2021 to 2022, properly format package imports
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Run make fmt and make generate-swagger
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Use Gitea JSON library, add assert for pkp
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Run make fmt again, fix err var redeclaration
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Remove LogSQL from ActivityPub person test
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Assert if json.Unmarshal succeeds
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Cleanup, handle invalid usernames for ActivityPub person GET request
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Rename hack_16834 to user_settings
Signed-off-by: Anthony Wang <ta180m@pm.me>
* Use the httplib module instead of http for GET requests
* Clean up whitespace with make fmt
* Use time.RFC1123 and make the http.Client proxy-aware
* Check if digest algo is supported in setting module
* Clean up some variable declarations
* Remove unneeded copy
* Use system timezone instead of setting.DefaultUILocation
* Use named constant for httpsigExpirationTime
* Make pubKey IRI #main-key instead of /#main-key
* Move /#main-key to #main-key in tests
* Implemented Webfinger endpoint.
* Add visible check.
* Add user profile as alias.
* Add actor IRI and remote interaction URL to WebFinger response
* fmt
* Fix lint errors
* Use go-ap instead of go-fed
* Run go mod tidy to fix missing modules in go.mod and go.sum
* make fmt
* Convert remaining code to go-ap
* Clean up go.sum
* Fix JSON unmarshall error
* Fix CI errors by adding @context to Person() and making sure types match
* Correctly decode JSON in api_activitypub_person_test.go
* Force CI rerun
* Fix TestActivityPubPersonInbox segfault
* Fix lint error
* Use @mariusor's suggestions for idiomatic go-ap usage
* Correctly add inbox/outbox IRIs to person
* Code cleanup
* Remove another LogSQL from ActivityPub person test
* Move httpsig algos slice to an init() function
* Add actor IRI and remote interaction URL to WebFinger response
* Update TestWebFinger to check for ActivityPub IRI in aliases
* make fmt
* Force CI rerun
* WebFinger: Add CORS header and fix Href -> Template for remote interactions
The CORS header is needed due to https://datatracker.ietf.org/doc/html/rfc7033#section-5 and fixes some Peertube <-> Gitea federation issues
* make lint-backend
* Make sure Person endpoint has Content-Type application/activity+json and includes PreferredUsername, URL, and Icon
Setting the correct Content-Type is essential for federating with Mastodon
* Use UTC instead of GMT
* Rename pkey to pubKey
* Make sure HTTP request Date in GMT
* make fmt
* dont drop err
* Make sure API responses always refer to username in original case
Copied from what I wrote on #19133 discussion: Handling username case is a very tricky issue and I've already encountered a Mastodon <-> Gitea federation bug due to Gitea considering Ta180m and ta180m to be the same user while Mastodon thinks they are two different users. I think the best way forward is for Gitea to only use the original case version of the username for federation so other AP software don't get confused.
* Move httpsig algs constant slice to modules/setting/federation.go
* Add new federation settings to app.example.ini and config-cheat-sheet
* Return if marshalling error
* Make sure Person IRIs are generated correctly
This commit ensures that if the setting.AppURL is something like "http://127.0.0.1:42567" (like in the integration tests), a trailing slash will be added after that URL.
* If httpsig verification fails, fix Host header and try again
This fixes a very rare bug when Gitea and another AP server (confirmed to happen with Mastodon) are running on the same machine, Gitea fails to verify incoming HTTP signatures. This is because the other AP server creates the sig with the public Gitea domain as the Host. However, when Gitea receives the request, the Host header is instead localhost, so the signature verification fails. Manually changing the host header to the correct value and trying the veification again fixes the bug.
* Revert "If httpsig verification fails, fix Host header and try again"
This reverts commit f53e46c721.
The bug was actually caused by nginx messing up the Host header when reverse-proxying since I didn't have the line `proxy_set_header Host $host;` in my nginx config for Gitea.
* Go back to using ap.IRI to generate inbox and outbox IRIs
* use const for key values
* Update routers/web/webfinger.go
* Use ctx.JSON in Person response to make code cleaner
* Revert "Use ctx.JSON in Person response to make code cleaner"
This doesn't work because the ctx.JSON() function already sends the response out and it's too late to edit the headers.
This reverts commit 95aad98897.
* Use activitypub.ActivityStreamsContentType for Person response Content Type
* Limit maximum ActivityPub request and response sizes to a configurable setting
* Move setting key constants to models/user/setting_keys.go
* Fix failing ActivityPubPerson integration test by checking the correct field for username
* Add a warning about changing settings that can break federation
* Add better comments
* Don't multiply Federation.MaxSize by 1<<20 twice
* Add more better comments
* Fix failing ActivityPubMissingPerson test
We now use ctx.ContextUser so the message printed out when a user does not exist is slightly different
* make generate-swagger
For some reason I didn't realize that /templates/swagger/v1_json.tmpl was machine-generated by make generate-swagger... I've been editing it by hand for three months! 🤦
* Move getting the RFC 2616 time to a separate function
* More code cleanup
* Update go-ap to fix empty liked collection and removed unneeded HTTP headers
* go mod tidy
* Add ed25519 to httpsig algorithms
* Use go-ap/jsonld to add @context and marshal JSON
* Change Gitea user agent from the default to Gitea/Version
* Use ctx.ServerError and remove all remote interaction code from webfinger.go
* Apply DefaultUserIsRestricted in CreateUser
* Enforce system defaults in CreateUser
Allow for overwrites with CreateUserOverwriteOptions
* Fix compilation errors
* Add "restricted" option to create user command
* Add "restricted" option to create user admin api
* Respect default setting.Service.RegisterEmailConfirm and setting.Service.RegisterManualConfirm where needed
* Revert "Respect default setting.Service.RegisterEmailConfirm and setting.Service.RegisterManualConfirm where needed"
This reverts commit ee95d3e8dc.
Targeting #14936, #15332
Adds a collaborator permissions API endpoint according to GitHub API: https://docs.github.com/en/rest/collaborators/collaborators#get-repository-permissions-for-a-user to retrieve a collaborators permissions for a specific repository.
### Checks the repository permissions of a collaborator.
`GET` `/repos/{owner}/{repo}/collaborators/{collaborator}/permission`
Possible `permission` values are `admin`, `write`, `read`, `owner`, `none`.
```json
{
"permission": "admin",
"role_name": "admin",
"user": {}
}
```
Where `permission` and `role_name` hold the same `permission` value and `user` is filled with the user API object. Only admins are allowed to use this API endpoint.
Adds a feature [like GitHub has](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request-from-a-fork) (step 7).
If you create a new PR from a forked repo, you can select (and change later, but only if you are the PR creator/poster) the "Allow edits from maintainers" option.
Then users with write access to the base branch get more permissions on this branch:
* use the update pull request button
* push directly from the command line (`git push`)
* edit/delete/upload files via web UI
* use related API endpoints
You can't merge PRs to this branch with this enabled, you'll need "full" code write permissions.
This feature has a pretty big impact on the permission system. I might forgot changing some things or didn't find security vulnerabilities. In this case, please leave a review or comment on this PR.
Closes#17728
Co-authored-by: 6543 <6543@obermui.de>
When a mirror repo interval is updated by the UI it is rescheduled with that interval
however the API does not do this. The API also lacks the enable_prune option.
This PR adds this functionality in to the API Edit Repo endpoint.
Signed-off-by: Andrew Thornton <art27@cantab.net>
* Set the default branch for repositories generated from templates
* Allows default branch to be set through the API for repos generated from templates
* Update swagger API template
* Only set default branch to the one from the template if not specified
* Use specified default branch if it exists while generating git commits
Fix#19082
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-authored-by: zeripath <art27@cantab.net>
We can't depend on `latest` version of gofumpt because the output will
not be stable across versions. Lock it down to the latest version
released yesterday and run it again.
This code adds a simple endpoint to apply patches to repositories and
branches on gitea. This is then used along with the conflicting checking
code in #18004 to provide a basic implementation of cherry-pick revert.
Now because the buttons necessary for cherry-pick and revert have
required us to create a dropdown next to the Browse Source button
I've also implemented Create Branch and Create Tag operations.
Fix#3880Fix#17986
Signed-off-by: Andrew Thornton <art27@cantab.net>