This commit is contained in:
parent
eb449eabb0
commit
5b1a6a6e01
GPG key ID:
A7B62D657EF764F8
1 changed files with 16 additions and 80 deletions
92
README.md
92
README.md
|
|
@ -1,6 +1,8 @@
|
|||
# AWS SDK for Zig
|
||||
# AWS SDK for Zig (zig-native branch)
|
||||
|
||||
[](https://drone.lerch.org/lobo/aws-sdk-for-zig)
|
||||
[](https://drone.lerch.org/api/badges/lobo/aws-sdk-for-zig/status.svg?ref=refs/heads/zig-native)
|
||||
|
||||
## WARNING: This branch is in development, with builds currently failing!
|
||||
|
||||
This SDK currently supports all AWS services except EC2 and S3. These two
|
||||
services only support XML, and zig 0.8.0 and master both trigger compile
|
||||
|
|
@ -16,95 +18,28 @@ Running strip on the executable after compilation (it seems zig strip
|
|||
only goes so far), reduces this to 4.3M. This is for x86_linux,
|
||||
(which is all that's tested at the moment).
|
||||
|
||||
# 2022-01-10 SDK Update
|
||||
|
||||
To get smaller executable size and better portability with faster compilation,
|
||||
my intent is to rework the http communications using
|
||||
[requestz](https://github.com/ducdetronquito/requestz). This relies on a
|
||||
couple other projects, and will require the creation of a zig implementation
|
||||
for [Signature Version 4](https://docs.aws.amazon.com/general/latest/gr/signature-version-4.html),
|
||||
along with support for some S3 quirks, etc. It will also reduce compatibility
|
||||
with some edge cases. Long term I think this is a better approach, however and
|
||||
will remove (or replace) a ton of the C dependencies as well as avoid a bunch
|
||||
of complexity such as the event loop C implementation found in the AWS
|
||||
libraries, which eventually could be replaced by zig async. I have created a
|
||||
[new branch](https://github.com/elerch/aws-sdk-for-zig/tree/zig-native)
|
||||
for this work as master is currently working fairly well. I'd also love to have
|
||||
an official package manager in zig, but I know this is high on the priority
|
||||
list for the foundation. In the meantime I will depend on git commands executed
|
||||
by build.zig to handle packages.
|
||||
|
||||
## Building
|
||||
|
||||
I am assuming here that if you're playing with zig, you pretty much know
|
||||
what you're doing, so I will stay brief.
|
||||
|
||||
First, the dependencies are required. Use the Dockerfile to build these.
|
||||
a `docker build` will do, but be prepared for it to run a while. The
|
||||
Dockerfile has been tested on x86_64 linux, but I do hope to get arm64
|
||||
supported as well.
|
||||
|
||||
Once that's done, you'll have an alpine image with all dependencies ready
|
||||
to go and zig master installed. There are some build-related things still
|
||||
broken in 0.8.0 and hopefully 0.8.1 will address those and we can be on
|
||||
a standard release.
|
||||
|
||||
* `zig build` should work. It will build the code generation project, run
|
||||
`zig build` should work. It will build the code generation project, run
|
||||
the code generation, then build the main project with the generated code.
|
||||
There is also a Makefile included, but this hasn't been used in a while
|
||||
and I'm not sure that works at the moment.
|
||||
|
||||
First time build should use `zig build -Dfetch` to fetch dependent packages
|
||||
(zfetch and friends).
|
||||
|
||||
## Running
|
||||
|
||||
This library uses the aws c libraries for it's work, so it operates like most
|
||||
other 'AWS things'. Note that I tested by setting the appropriate environment
|
||||
variables, so config files haven't gotten a run through.
|
||||
main.zig gives you a handful of examples for working with services.
|
||||
This library mimics the aws c libraries for it's work, so it operates like most
|
||||
other 'AWS things'. main.zig gives you a handful of examples for working with services.
|
||||
For local testing or alternative endpoints, there's no real standard, so
|
||||
there is code to look for `AWS_ENDPOINT_URL` environment variable that will
|
||||
supercede all other configuration.
|
||||
|
||||
## Dependencies
|
||||
|
||||
|
||||
Full dependency tree:
|
||||
aws-c-auth
|
||||
* s2n
|
||||
* aws-lc
|
||||
* aws-c-common
|
||||
* aws-c-compression
|
||||
* aws-c-common
|
||||
* aws-c-http
|
||||
* s2n
|
||||
* aws-c-common
|
||||
* aws-c-io
|
||||
* aws-c-common
|
||||
* s2n
|
||||
* aws-lc
|
||||
* aws-c-cal
|
||||
* aws-c-common
|
||||
* aws-lc
|
||||
* aws-c-compression
|
||||
* aws-c-common
|
||||
* aws-c-cal
|
||||
* aws-c-common
|
||||
* aws-lc
|
||||
|
||||
Build order based on above:
|
||||
|
||||
1. aws-c-common
|
||||
1. aws-lc
|
||||
2. s2n
|
||||
2. aws-c-cal
|
||||
2. aws-c-compression
|
||||
3. aws-c-io
|
||||
4. aws-c-http
|
||||
5. aws-c-auth
|
||||
|
||||
Dockerfile in this repo will manage this
|
||||
supersede all other configuration.
|
||||
|
||||
TODO List:
|
||||
|
||||
* Implement credentials provider
|
||||
* Implement sigv4 signing
|
||||
* Implement jitter/exponential backoff. This appears to be configuration of
|
||||
`aws_c_io` and should therefore be trivial
|
||||
* Implement timeouts and other TODO's in the code
|
||||
|
|
@ -117,6 +52,7 @@ TODO List:
|
|||
self-hosted compiler coming in zig 0.9.0 (January 2022) due to compiler bug
|
||||
discovered. More details and llvm ir log can be found in the
|
||||
[XML branch](https://git.lerch.org/lobo/aws-sdk-for-zig/src/branch/xml).
|
||||
* Implement sigv4a signing
|
||||
|
||||
Compiler wishlist/watchlist:
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue