Some programs need an exact amount of arguments, and we want to fail
if they get too many or not enough.
Change-Id: Ic703949f38780718f26118b896e7c7d7aa5553d9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2504
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
Some programs don’t need any arguments, so fail if they do get them,
because that’s usually a bug.
Change-Id: I28639056d3d9cea0cc0e7fcbfa42120c4f129c8c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2503
Tested-by: BuildkiteCI
Reviewed-by: Profpatsch <mail@profpatsch.de>
We expect the users to pass an actual prog, not an argv, so 0 is the
program to exec into.
Also improve the exec error, by including the program we tried to exec
into (the rust IO error doesn’t contain the name).
Change-Id: I664f9f717e4f82bfc1b1da3bd7114124b7582d5f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/2489
Reviewed-by: Profpatsch <mail@profpatsch.de>
Tested-by: BuildkiteCI
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>
