This commit replaces the `slog` family of crates used by `wasm-pack`
with the `log` crate plus `env_logger`. This also means that by default
`wasm-pack` also won't create a `wasm-pack.log` file in the current
directory. Enabling logging will now be done through
`RUST_LOG=wasm_pack` instead of `-v` flags.
Closes#425
This commit kicks off the addition of installers for wasm-pack, with the main
goals of being:
* Users should have a one-click (ideally) solution to download and install
wasm-pack.
* We should ideally not have to worry about picking up "heavy" dependencies in
wasm-pack like C++ or C code (if necessary).
The general idea here is very similar to rustup (and in fact a good deal of code
is copied from them!). The installation worklow for wasm-pack in theory after
this commit looks like:
1. First, a users visits the installer landing page. A preview is available at
https://alexcrichton.github.io/wasm-pack/installer/. Clearly this page needs
a better stylesheet!
2. The user performs the instructions presented on the page. The website
automatically detects what platform you're running on, basically giving you a
curl/sh script or a Windows installer. There's various options for seeing
other installers as well, and the fallback of `cargo install` is presented if
we don't recognize the platform (or if we don't think we have precompiled
binaries).
3a. On Unix, users execute a curl/sh script like:
```
curl https://alexcrichton.github.io/wasm-pack/installer/init.sh -sSf | sh
```
This command will download the shell script included in this PR, which will
in turn do some further platform detection (like OSX vs Linux) and then
download the most recent version of `wasm-pack` from GitHub releases. This
is then extracted, the `wasm-pack` binary is renamed to `wasm-pack-init`,
and then that binary is run. The binary will refuse by default to overwrite
a previous installation, but that can be overridden with the `-f` flag.
3b. On Windows users download a binary. This binary, when run, will pop up a
console window. This window will have the same output as the shell script
installer, and will wait at the end of its execution to ensure the user has
time to read everything.
And... that's it! The deployment process for all this looks like so:
* All CI builds will update the website and shell script (published to
gh-pages). A small script at `docs/installer/build-installer.rs` fills in the
current version number inferred from `Cargo.toml`.
* Tagged CI builds will publish releases, as usual.
* "Pushing a release" is done by bumping the version number in `Cargo.toml`.
When bumped all online installers will now point to the new release. There
will be a window of time, though, when the version number is bumped and the
release hasn't finished building on CI. In this case users will get errors
(unfortunately).
This is all still a work-in-progress and feedback is definitely appreicated and
welcome on all this!
The `iter_causes` method does the `skip(1)` for us and `e.causes()` is now
deprecated. Unfortunately, `Fail::iter_causes` is only implemented on the
trait *object*, not a provided method for all implementations of the trait. This
means that calling it is slightly less ergonomic...
This commit does a few things:
- Sets up the ability to log information based off log level
- Figures out where to log the file
- Starts logging information in the program
As this is a first pass the logging is good enough to know where things
went wrong, but we can expand on this in the future to log many many
things. We just now have an initial implementation. The log is written
out to a file that can be read by the user if they pass in -v, -vv, etc.
where each v is an extra level of logging.
Remove quicli from the code base. It's a fantastic library to get
started, but in order to implement logging as well as just maintaining
the library in general it was easier to remove it and continue work
without it. While we were going to remove it in 0.4 we found it easier
to remove now to implement logging.
This commit does quite a few things in order to get this to work:
1. We move all of the code dealing with knowing which command to run
into it's own function. This wrapper command allows us to always
close out PBAR before dumping error output. This fixes a problem
where stderr and stdout were borked and not printing out error
messages correctly.
2. We then refactor the code that has a panic to return early with that
error message.
3. If the command we ran errored, we print out with PBAR that there was
an error with the program we ran (not wasm-pack itself) then dump the
stderr from the command to the actual stderr
This means we can abort early on without continuing any of the other
parts of wasm-pack and let the user know what the error was rather than
just saying "There's an error"
Functions to new module. Tidies up reused code into
private function.
Throws warning due to line 11 in command.rs - unused import
Import is used for the StructOpt derive macro, so is needed
but still throws this warning
This commit allows us to have a global progress bar to write data to
giving us the following benefits:
- Consistent ways to handle types of messages such as errors and
warnings
- Easy interface to add progress bars of various types
- Easy to maintain, add new types of bars, or more while encapsulating
the login in a single module
npm allows scopes to avoid name collisions. In order to support this
optional feature a flag has been added so that the name in the generated
package.json is correct.
Example for a package named wasm-add:
```bash
wasm-pack init
```
package.json
```json
{
"name": "wasm-add"
}
```
```bash
wasm-pack init --scope mgattozzi
```
package.json
```json
{
"name": "@mgattozzi/wasm-add"
}
```
Alex Crichton