Ghub User and Developer Manual

Table of Contents

Next: , Up: (dir)   [Contents][Index]

Ghub User and Developer Manual

Ghub is an Emacs library that is used by various packages to access the APIs of various instances of various Git forge implementations.

This manual is for Ghub version 3.5.2.

Copyright (C) 2017-2021 Jonas Bernoulli <jonas@bernoul.li>

You can redistribute this document and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This document is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.


Next: , Previous: , Up: Top   [Contents][Index]

1 Introduction

Ghub is an Emacs library that is used by various packages to access the APIs of various instances of various Git forge implementations.

A forge is a web-based collaborative software platform for developing and distributing computer applications. Examples include Github and Gitlab.


Next: , Previous: , Up: Top   [Contents][Index]

2 Getting Started

This manual guides you through the steps that are necessary to use the Forge package and/or to make a request using just Ghub itself, such as this:

(ghub-request "GET" "/user")

To be able to do that, Ghub needs to know who you want to talk to, who you are, and how you are going to prove the latter to the former.

Additionally Ghub wants to know on behalf of which Emacs package it is making a request. So the question of "who is making the request" has to be rephrased as "which human (or bot) is using what (Emacs) package to make the request". If for example, the human known as "tarsius" is using the forge package, then that is represented in some places using the string "tarsius^forge".

This package used to attempt to get the answers to these questions using a setup wizard. Unfortunately that had to be removed because (a) it only ever supported Github, (b) Github is about to remove support for that on their end, (c) it did not always work, and (d) when it couldn’t be used, or failed, then it made things more complicated.

So now it is necessary for users to read some documentation and because many things can go wrong, those instructions have to be fairly detailed. You can of course skip over most of this, but if things go wrong, then I would like to kindly request that you take another look before asking me for help.


Next: , Up: Getting Started   [Contents][Index]

2.1 Basic Concepts, Arguments and Variables

Originally Ghub supported only Github but now it also supports Gitlab, Gitea, Gogs and Bitbucket. For the historic reason just given, the function ghub-request defaults to acting on a github forge, but can be told to act on another forge using the FORGE argument.

The FORGE argument only specifies what kind of forge to act on, not which instance. The HOST argument can be used to select the instance. For some forges a default instance is defined:

Together the FORGE and HOST arguments specify the forge type and instance. In addition to that, it is also necessary to specify on whose behalf the request is being made, which can be done using the USERNAME and AUTH arguments. For example:

(ghub-request "GET" "/user" nil
              :forge 'github
              :host "api.github.com"
              :username "tarsius"
              :auth 'forge)

Having to specify these arguments for every request is inconvenient. Additional variables and convenience functions can be used to make that unnecessary in most cases.

(But for debugging purposes the above explicit form is very useful. You will obviously have to change the value of USERNAME and you should use ghub as AUTH when first trying this at home.)

These variables can be set globally and/or for a specific repository.

These github specific variables are discussed in more detail in Github Configuration Variables.

For gitlab and bitbucket forges similar variables are available:

For the gitea and gogs forges some similar variables are available, however for some of the ghub.* variables no equivalent variable exist for these two forges:


Next: , Previous: , Up: Getting Started   [Contents][Index]

2.2 Setting the Username

Ghub needs to know your username that you use on the host that you want it to connect to. For each host a different Git variable has to be set to specify the username on that host. More than one variable is needed because you might use different usernames on different hosts.

2.2.1 Setting your Github.com Username

To inform Ghub about your "github.com" username do this:

git config --global github.user USERNAME

If you need to identify as another user in a particular repository, then you have to set that variable locally:

cd /path/to/repo
git config --local github.user USERNAME

2.2.2 Setting your Gitlab.com Username

To inform Ghub about your "gitlab.com" username do this:

git config --global gitlab.user USERNAME

If you need to identify as another user in a particular repository, then you have to set that variable locally:

cd /path/to/repo
git config --local gitlab.user USERNAME

Make sure you use the correct USERNAME for this forge/host. It might not be the same as on "github.com"!

2.2.3 Setting your Github Enterprise Username

For Github Enterprise instances you have to specify where the API can be accessed and a different variable has to be used to set the username.

For example if the API is available at https://example.com/api/v3, then you should do this:

git config --global github.example.com/api/v3.user USERNAME

Make sure you use the correct USERNAME for this instance. It might not be the same as on "github.com"!

Doing this only tells Ghub who you are on this host, additionally you have to tell Ghub which repository are connected to that forge/host, like so:

cd /path/to/repo
git config --local github.host example.com/api/v3

2.2.4 Setting your Username for Other Hosts and/or Forges

To inform Ghub about your username on HOST (a FORGE instance) do this:

git config --global FORGE.HOST.user USERNAME

FORGE can be one of bitbucket, gitea or gogs. It can also be github or gitlab; but if that is the case, then you should look at the preceding sections instead, which discuss these cases specifically.

HOST identifies the instance. This actually points at the top-level endpoint of the API and may contain path components, e.g.: example.com/api.

If you need to identify as another user in a particular repository, then you have to set that variable locally:

cd /path/to/repo
git config --local FORGE.HOST.user USERNAME

Next: , Previous: , Up: Getting Started   [Contents][Index]

2.3 Creating and Storing a Token


Next: , Up: Creating and Storing a Token   [Contents][Index]

2.3.1 Creating a Token

To create a token, use the web interface of the forge/host you want to connect to. Here is a list of pages to do this for certain popular hosts:

For other forges we cannot provide a functioning URL because they contain unknown values such as your name. Just go to the general settings page of the respective host and then go from there.

Except on gitea and gogs each token can be limited to certain "scopes", i.e., it is possible to limit for which purposes any given token can be used.

Before you create a token to be used for a certain package, you should consult the documentation of that package, which in turn should tell you which scopes are needed and why. The Forge package for example does so in (forge)Token Creation.


Previous: , Up: Creating and Storing a Token   [Contents][Index]

2.3.2 Storing a Token

Please also see (auth)Top for all the gory details about Auth-Source.

The variable auth-sources controls how and where Auth-Source keeps its secrets. The default value is a list of three files: ("~/.authinfo" "~/.authinfo.gpg" "~/.netrc"), but to avoid confusion you should make sure that only one of these files exists and then you should also adjust the value of the variable to only ever use that file, for example:

(setq auth-sources '("~/.authinfo"))

In ~/.authinfo secrets are stored in plain text. If you don’t want that, then you should use the encrypted ~/.authinfo.gpg instead:

(setq auth-sources '("~/.authinfo.gpg"))

Auth-Source also supports storing secrets in various external key-chains. See (auth)Top for more information.

The default Auth-Source backends only support storing three values per entry; the "machine", the "login" and the "password". Because Ghub uses separate tokens for each package, it has to squeeze four values into those three slots, and it does that by using "USERNAME^PACKAGE" as the "login".

Assuming your Github username is "ziggy", the package is named "forge", and you want to access Github.com with the token "012345abcdef…", an entry in one of the three mentioned files would then look like this:

machine api.github.com login ziggy^forge password 012345abcdef...

Assuming your Gitlab username is "ziggy", the package is named "forge", and you want to access Gitlab.com with the token "012345abcdef…", an entry in one of the three mentioned files would then look like this:

machine gitlab.com/api/v4 login ziggy^forge password 012345abcdef...

Previous: , Up: Getting Started   [Contents][Index]

2.4 Github Configuration Variables

The username and, unless you only use Github.com itself, the Github Enterprise instance have to be configured using Git variables. In rare cases it might also be necessary to specify the identity of the local machine, which is done using a lisp variable.

Variable: github.user

The Github.com username. This should be set globally and if you have multiple Github.com user accounts, then you should set this locally only for those repositories that you want to access using the secondary identity.

Variable: github.HOST.user

This variable serves the same purpose as github.user but for the Github Enterprise instance identified by HOST.

The reason why separate variables are used is that this makes it possible to set both values globally instead of having to set one of the values locally in each and every repository that is connected to the Github Enterprise instance, not Github.com.

Variable: github.host

This variable should only be set locally for a repository and specifies the Github Enterprise edition that that repository is connected to. You should not set this globally because then each and every repository becomes connected to the specified Github Enterprise instance, including those that should actually be connected to Github.com.

When this is undefined, then "api.github.com" is used (defined in the constant ghub-default-host, which you should never attempt to change.)


Next: , Previous: , Up: Top   [Contents][Index]

3 API


Next: , Up: API   [Contents][Index]

3.1 Their APIs

Of course this manual does not cover the APIs of all forges that it supports, but for your convenience, here are the links to their API manuals:


Next: , Previous: , Up: API   [Contents][Index]

3.2 Making REST Requests

Function: ghub-request method resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback url value error extra method*

This function makes a request for RESOURCE using METHOD. PARAMS, QUERY, PAYLOAD and/or HEADERS are alists holding additional request data. The response body is returned and the response headers are stored in the variable ghub-response-headers.

Function: ghub-continue args

If there is a next page, then this function retrieves that.

This function is only intended to be called from callbacks. If there is a next page, then that is retrieved and the buffer that the result will be loaded into is returned, or t if the process has already completed. If there is no next page, then return nil.

Callbacks are called with four arguments (see ghub-request). The forth argument is a ghub--req struct, intended to be passed to this function. A callback may use the struct’s extra slot to pass additional information to the callback that will be called after the next request. Use the function ghub-req-extra to get and set the value of that slot.

As an example, using ghub-continue in a callback like so:

(ghub-get "/users/tarsius/repos" nil
          :callback (lambda (value _headers _status req)
                      (unless (ghub-continue req)
                        (setq my-value value))))

is equivalent to:

(ghub-get "/users/tarsius/repos" nil
          :unpaginate t
          :callback (lambda (value _headers _status _req)
                      (setq my-value value)))

To demonstrate how to pass information from one callback to the next, here we record when we start fetching each page:

(ghub-get "/users/tarsius/repos" nil
          :extra (list (current-time))
          :callback (lambda (value _headers _status req)
                      (push (current-time) (ghub-req-extra req))
                      (unless (ghub-continue req)
                        (setq my-times (ghub-req-extra req))
                        (setq my-value value))))
Variable: ghub-response-headers

A select few Github API resources respond by transmitting data in the response header instead of in the response body. Because there are so few of these inconsistencies, ghub-request always returns the response body.

To access the response headers use this variable after ghub-request has returned.

Function: ghub-response-link-relations req headers payload

This function returns an alist of the link relations in HEADERS, or if optional HEADERS is nil, then those in ghub-response-headers.

When accessing a Bitbucket instance then the link relations are in PAYLOAD instead of HEADERS, making their API merely RESTish and forcing this function to append those relations to the value of ghub-response-headers, for later use when this function is called with nil for PAYLOAD.


Next: , Previous: , Up: API   [Contents][Index]

3.3 Making GraphQL Requests

Function: ghub-graphql graphql &optional variables &key username auth host callback silent callback errorback value extra

This function makes a GraphQL request using GRAPHQL and VARIABLES as inputs. GRAPHQL is a GraphQL string. VARIABLES is a JSON-like alist. The other arguments behave as for ghub-request (which see).

The response is returned as a JSON-like alist. Even if the response contains errors, this function does not raise an error. Cursor-handling is likewise left to the caller.

ghub-graphql is a thin convenience wrapper around ghub-request, similar to ghub-post and friends. While the latter only hard-code the value of the METHOD argument, the former also hard-codes RESOURCE and constructs PAYLOAD from GRAPHQL and VARIABLES. It also drops UNPAGINATE, NOERROR, READER (internal functions expect alist-ified JSON) and FORGE (only Github currently supports GraphQL).

ghub-graphql does not account for the fact that pagination works differently in GraphQL than it does in REST, so users of this function have to deal with that themselves. Likewise error handling works differently and has to be done by the caller too.

An early attempt at implementing automatic unpaginating for GraphQL can be found in the faithful-graphql branch, provided I haven’t deleted that by now. On that branch I try to do things as intended by the designers of GraphQL, using variables and fragments, and drowning in a sea of boilerplate.

The problem with that approach is that it only works for applications that fetch specific information on demand and actually want things to be paginated. I am convinced that GraphQL is very nice for web apps.

However the Forge package for which I have implemented all of this has very different needs. It wants to fetch "all the data" and "cache" it locally, so that it is available even when there is no internet connection. GraphQL was designed around the idea that you should be able to "ask for what you need and get exactly that". But when that boils down to "look, if I persist, then you are going to hand me over all the data anyway, so just caught it up already", then things start to fall apart. If Github’s GraphQL allowed pagination to be turned off completely, then teaching ghub-graphql about error handling would be enough.

But it doesn’t and when doing things as intended, then that leads to huge amounts of repetitive boilerplate, which is so boring to write that doing it without introducing bugs left and right is near impossible; so I decided to give up on GraphQL variables, fragments and conditions, and instead implement something more powerful, though also more opinionated.

Function: ghub--graphql-vacuum query variables callback &optional until &key narrow username auth host forge

This function is an opinionated alternative to ghub-graphql. It relies on dark magic to get the job done.

It makes an initial request using QUERY. It then looks for paginated edges in the returned data and makes more requests to resolve them. In order to do so it automatically transforms the initial QUERY into another query suitable for that particular edge. The data retrieved by subsequent requests is then injected into the data of the original request before that is returned or passed to the callback. If subsequently retrieved data features new paginated edges, then those are followed recursively.

The end result is essentially the same as using ghub-graphql, if only it were possible to say "do not paginate anything". The implementation is much more complicated because it is not possible to do that.

QUERY is a GraphQL query expressed as an s-expression. The bundled gsexp library is used to turn that into a GraphQL query string. Only a subset of the GraphQL features are supported; fragments for example are not, and magical stuff happens to variables. This is not documented yet, I am afraid. Look at existing callers.

VARIABLES is a JSON-like alist as for ghub-graphql.

UNTIL is an alist ((EDGE-until . VALUE)...). When unpaginating EDGE try not to fetch beyond the element whose first field has the value VALUE and remove that element as well as all "lesser" elements from the retrieved data if necessary. Look at forge--pull-repository for an example. This is only useful if you "cache" the response locally and want to avoid fetching data again that you already have.

Other arguments behave as for ghub-graphql and ghub-request, more or less.

Using ghub--graphql-vacuum, the following resource specific functions are implemented. These functions are not part of the public API yet and are very much subject to change.

Function: ghub-fetch-repository owner name callback &optional until &key username auth host forge

This function asynchronously fetches forge data about the specified repository. Once all data has been collected, CALLBACK is called with the data as the only argument.

Function: ghub-fetch-issue owner name callback &optional until &key username auth host forge

This function asynchronously fetches forge data about the specified issue. Once all data has been collected, CALLBACK is called with the data as the only argument.

Function: ghub-fetch-pullreq owner name callback &optional until &key username auth host forge

This function asynchronously fetches forge data about the specified pull-request. Once all data has been collected, CALLBACK is called with the data as the only argument.

Note that in order to avoid duplication all of these functions base their initial query on the query stored in ghub-fetch-repository. The latter two pass that query through ghub--graphql-prepare-query, which then uses ghub--graphql-narrow-query to remove parts the caller is not interested in. These two functions are also used internally, when unpaginating, but as demonstrated here they can be useful even before making an initial request.


Next: , Previous: , Up: API   [Contents][Index]

3.4 Github Convenience Wrappers

Function: ghub-head resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: ghub-get resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback

These functions are simple wrappers around ghub-request. Their signature is identical to that of the latter, except that they do not have an argument named METHOD. The HTTP method is instead given by the second word in the function name.

As described in the documentation for ghub-request, it depends on the used method whether the value of the PARAMS argument is used as the query or the payload. For the "HEAD" and "GET" methods it is used as the query.

Function: ghub-put resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: ghub-post resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: ghub-patch resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: ghub-delete resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback

These functions are simple wrappers around ghub-request. Their signature is identical to that of the latter, except that they do not have an argument named METHOD. The HTTP method is instead given by the second word in the function name.

As described in the documentation for ghub-request, it depends on the used method whether the value of the PARAMS argument is used as the query or the payload. For the "PUT", "POST", "PATCH" and "DELETE" methods it is used as the payload.

Function: ghub-wait resource &optional duration &key username auth host

Some API requests result in an immediate successful response even when the requested action has not actually been carried out yet. An example is the request for the creation of a new repository, which doesn’t cause the repository to immediately become available. The Github API documentation usually mentions this when describing an affected resource.

If you want to do something with some resource right after making a request for its creation, then you might have to wait for it to actually be created. This function can be used to do so. It repeatedly tries to access the resource until it becomes available or until a timeout is reached. In the latter case it signals ghub-error.

RESOURCE specifies the resource that this function waits for.

DURATION specifies the maximum number of seconds to wait for, defaulting to 64 seconds. Emacs will block during that time, but the user can abort using C-g.

The first attempt is made immediately and will often succeed. If not, then another attempt is made after two seconds, and each subsequent attempt is made after waiting as long as we already waited between all preceding attempts combined.

See ghub-request’s documentation above for information about the other arguments.


Previous: , Up: API   [Contents][Index]

3.5 Non-Github Convenience Wrappers

ghub-request and ghub-METHOD can be used to make a request for any of the supported forge types, but except when making a request for a github instance, then that requires the use of the FORGE argument.

To avoid that, functions named FORGE-request and FORGE-METHOD are also available. The following forms are equivalent, for example:

(ghub-get ... :auth 'PACKAGE :forge 'gitlab)
(glab-get ... :auth 'PACKAGE)

These forms would remain equivalent even if you did not specify a value for the AUTH arguments — but you should not do that if you plan to share your code with others (see Using Ghub in Your Own Package). If you do omit AUTH, then the request is made on behalf of the ghub package, regardless of the symbol prefix of the function you use to do so.

All FORGE-request and FORGE-METHOD functions, including but not limited to ghub-METHOD, are very simple wrappers around ghub-request. They take fewer arguments than ghub-request and instead pass constant values for the arguments METHOD and/or FORGE.

Function: buck-request resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-request resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-request resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback

Wrappers around ghub-request which hardcode the FORGE to either bitbucket, gitlab, gogs or gitea.

Function: buck-get resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: buck-put resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: buck-post resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: buck-delete resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-head resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-get resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-put resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-post resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-patch resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: glab-delete resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-get resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-put resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-post resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-patch resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gogs-delete resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gtea-get resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gtea-put resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gtea-post resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gtea-patch resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback
Function: gtea-delete resource &optional params &key query payload headers unpaginate noerror reader username auth host callback errorback

Wrappers around FORGE-METHOD which hardcode the FORGE to either bitbucket, gitlab, gogs or gitea, and the METHOD to the implied method.

Note that buck-head, buck-patch, gogs-head and gtea-head do not exist because the respective APIs do not appear to support these methods.


Next: , Previous: , Up: Top   [Contents][Index]

4 Notes


Next: , Up: Notes   [Contents][Index]

4.1 Using Ghub in Personal Scripts

You can of course use ghub-request and its wrapper functions in your personal scripts. Unlike when you use Ghub in a package that you distribute for others to use, you don’t have to explicitly specify a package in personal scripts.

;; This is perfectly acceptable in personal scripts ...
(ghub-get "/user")

;; ... and actually equals to
(ghub-get "/user" nil :auth 'ghub)

;; In packages you have to specify the package using AUTH.
(ghub-get "/user" nil :auth 'some-package)

When the AUTH argument is not specified, then a request is made on behalf of the ghub package itself. Like for any other package you have to create a dedicated token of coures.


Next: , Previous: , Up: Notes   [Contents][Index]

4.2 Using Ghub in Your Own Package

Every package should use its own token. This allows you as the author of some package to only request access to API scopes that are actually needed, which in turn might make it easier for users to trust your package not to do unwanted things.

You have to tell ghub-request on behalf of which package a request is being made by passing the symbol PACKAGE as the value of its AUTH argument.

(ghub-request "GET" "/user" nil :auth 'PACKAGE)

Keep in mind that the users of your package will have to manually create a suitable token. To make that easier, you should not only link to this manual but also prominently mention the scopes the token needs; and explain what they are needed for.


Previous: , Up: Notes   [Contents][Index]

4.3 Forge Limitations and Notes


Next: , Previous: , Up: Top   [Contents][Index]

Appendix A Function Index

Jump to:   B   G  
Index Entry  Section

B
buck-delete: Non-Github Convenience Wrappers
buck-get: Non-Github Convenience Wrappers
buck-post: Non-Github Convenience Wrappers
buck-put: Non-Github Convenience Wrappers
buck-request: Non-Github Convenience Wrappers

G
ghub--graphql-vacuum: Making GraphQL Requests
ghub-continue: Making REST Requests
ghub-delete: Github Convenience Wrappers
ghub-fetch-issue: Making GraphQL Requests
ghub-fetch-pullreq: Making GraphQL Requests
ghub-fetch-repository: Making GraphQL Requests
ghub-get: Github Convenience Wrappers
ghub-graphql: Making GraphQL Requests
ghub-head: Github Convenience Wrappers
ghub-patch: Github Convenience Wrappers
ghub-post: Github Convenience Wrappers
ghub-put: Github Convenience Wrappers
ghub-request: Making REST Requests
ghub-response-link-relations: Making REST Requests
ghub-wait: Github Convenience Wrappers
glab-delete: Non-Github Convenience Wrappers
glab-get: Non-Github Convenience Wrappers
glab-head: Non-Github Convenience Wrappers
glab-patch: Non-Github Convenience Wrappers
glab-post: Non-Github Convenience Wrappers
glab-put: Non-Github Convenience Wrappers
glab-request: Non-Github Convenience Wrappers
gogs-delete: Non-Github Convenience Wrappers
gogs-get: Non-Github Convenience Wrappers
gogs-patch: Non-Github Convenience Wrappers
gogs-post: Non-Github Convenience Wrappers
gogs-put: Non-Github Convenience Wrappers
gogs-request: Non-Github Convenience Wrappers
gtea-delete: Non-Github Convenience Wrappers
gtea-get: Non-Github Convenience Wrappers
gtea-patch: Non-Github Convenience Wrappers
gtea-post: Non-Github Convenience Wrappers
gtea-put: Non-Github Convenience Wrappers

Jump to:   B   G  

Previous: , Up: Top   [Contents][Index]

Appendix B Variable Index

Jump to:   G  
Index Entry  Section

G
ghub-response-headers: Making REST Requests
github.host: Github Configuration Variables
github.HOST.user: Github Configuration Variables
github.user: Github Configuration Variables

Jump to:   G