`Text` and `Binary` should be self-explaining, they just match on the
primitive and throw an error otherwise.
OneOf is cool, because it allows the user to match on the
result type of decoding `inner`, and give a list of values that should
be allowed as the result type (the associated type `A` in the
`Decoder` trait).
Change-Id: Ia252e25194610555c17c37640a96953142f0a165
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2498
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Shouldn’t use the netstring function, since that adds the length of
the containing string, which doesn’t make sense for numbers, they just
have their one length number and content.
Change-Id: I5591f6dd59154c5ef38d6e9b7300d19884a2d57b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2497
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
This fell out of us moving the `U::List` to a `Vec`.
I noticed that now we have deep recursion for `U`s, which originally
wasn’t intended; reverting to contain `&[u8]` might be a good
experiment, as long as the lists stay a `Vec<&'a [u8]`, which was the
thing preventing us from parsing lists without allocating memory.
Change-Id: I4900c5dea460fa69a78ce0dbed5708495af5d2e1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2495
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
`dec::RecordDot` accesses a specific field of a netencode record.
In order to implement this, either we’d have to introduce a type-level
string, but in all honesty this kind of typelevel circlejerking never
leads anywhere, so let’s change the trait to use `&self` after all.
Usage is pretty much the same, except actually more like you’d expect.
Change-Id: I5a7f1a3f587256c50df1b65c2969e5a7194bba70
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2494
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Since we don’t necessarily need to decode deeply, we can make the
decoders take a `U` instead of a `T`.
Change-Id: I9704a21edb3922d58411e6807d027d684b18d390
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2492
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Also change the toplevel `encode()` to take a `&U` instead of an owned
`U`.
Change-Id: I8e51540cc531e70ae1c94e3676f4dd88da7a924d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2491
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
`U::Record` is required to be a hash map (later keys should be
ignored), so why not do the hash map immediately.
This surfaced a problem with read-http, because duplicate headers in
http are possible, but before they’d be silently ignored.
Now we merge them into a `U::List` in case, to be handled by
consumers of read-http.
Change-Id: Ifd594916f76e5acf9d08e705e0dec2c10a0081c9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2490
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Earlier we left the next level of values unencoded, since lists are
just concatenated netencode values. But I noticed that you can’t write
e.g. a `t_to_u` function, because only in the case of lists you need
to allocate memory.
Turns out that if we read the next level of values, everything is
handled the same as in `Record` and things suddenly start working.
We can also throw away some of the strange and ad-hoc parser helpers
we needed before, `skip` and `list_take`, since now those are just
normal `Vec::iter().skip()` and take.
Change-Id: Ibc476e028102944a65c2b64621047086cfc09aa5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2488
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
Since `Text` is a scalar, it doesn’t make sense to delay the utf-8
verification to the consumer.
Change-Id: I36e4d228fbf35374d7c1addb4b24828cf6e927e5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2478
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
a044a87084 removed boxes in T::List, but
the tests were not adjusted accordingly.
Seems like netencode fell victim to CI not recursing into attrsets not
generated by readTree in pipeline generation.
Change-Id: I65d58a82881059983f7d6bc7a32263c6671ccbba
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2486
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
Seems like 5d44df3af6 forgot to add the
newly split out crate to the dependencies of netencode_mustache.
CI didn't pick up on it since it is hidden away from readTree in an
attrset in a file.
Change-Id: I7df9a636d849de48a99562d1cda8c0e6765f4781
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2485
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
There is this semantic exit code schema championed by execline and
skaware tooling, and we refined and documented it a bit in lorri
d1d673d420/src/ops/mod.rs (L24-L35)
in the past.
This just transcribes the error messages into simple helper functions.
Applies the functions to the places where we would panic or die
`sys::exit()` instead.
Change-Id: I15ca05cd6f99a25a3378518be94110eab416354e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2475
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
`exec_into_args` would just read argv and exec into it, but we want to
be able to write commands which take some positional arguments first.
Thus we split the invocation into `args_for_exec`, which returns the
positional arguments and prog, and then pass prog to `exec_into_args`
when we want to exec eventually (prog is still an iterator at this
point).
Change-Id: I0b180c1a100b96363fe33ba2c42034ed41716b7a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2474
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Splice a netencode record from stdin into the environment.
Change-Id: I7eac19e18164e070e4463ee431d9b0e955857b9c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2454
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Decoders are implemented not directly on output types, but on trivial
proxy types, so that we can easily combine those into a decoder, and
then the associated type is the actual return value of the decoder.
Change-Id: Ibce98fa09fc944e02ab327112ec7ffbc09815830
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2455
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
arglib is the simple idea of passing structured data via a
conventional environment variable instead of implementing an optparser
for every little tool.
Pop the envvar, decode the contents, return the contents.
Change-Id: Ie44148293a58aae9a0a613895176227d43b491bb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2449
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Basically what you expect, strings to text, ints to 64-bit integers,
attrs and lists to nested records and lists.
Change-Id: I9d3d841f32ab32a152cd61522f02ebde4a9b11d3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2444
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
Apparently HashMap and Vec already do internal boxing, so the extra
indirection in the value isn’t needed.
Then, in order to make things uniform, move the boxing of `Sum` into
the `Tag` value. No extra boxing in the recursion! \o/
Change-Id: Ic21d2e3e6ac0c6e1f045bf2c9d3e9c5af446fcff
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2443
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
A little executable, combining the netencode and mustache libraries to
make easy templating from the command line possible.
Combined with the nix netencode generators, it’s now trivial to
populate a mustache template with (nearly) arbitrary data.
Yay.
Change-Id: I5b892c38fbc33dd826a26174dd9567f0b72e6322
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2320
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
The netencode standard, a no-nonsense extension of netstrings for
structured data.
Includes a nix generator module and a rust parsing library.
Imported from
e409df3861/pkgs/profpatsch/netencode
Original license GPLv3, but I’m the sole author, so I transfer it to
whatever license depot uses.
Change-Id: I4f6fa97120a0fd861eeef35085a3dd642ab7c407
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2319
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
