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refactor(tvix/cli): add helper method for strong string coercion

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This is repetitive and error prone (e.g. switching around
to_string/as_str has drastic consequences) due to the ToString
overloads.

Change-Id: I9b16a2e0e05e4c21e83f43e9f603746eb42e53f7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7947
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
This commit is contained in:
Vincent Ambo 2023-01-29 15:43:42 +03:00 committed by tazjin
parent 91146b204f
commit 124af9e5d5
1 changed files with 28 additions and 28 deletions
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56
tvix/cli/src/derivation.rs
View file

@ -173,26 +173,22 @@ fn populate_output_configuration(
(Some(hash), Some(algo), hash_mode) => match drv.outputs.get_mut("out") {
None => return Err(Error::ConflictingOutputTypes.into()),
Some(out) => {
let algo = algo
.force(vm)?
.coerce_to_string(CoercionKind::Strong, vm)?
.as_str()
.to_string();
let algo = strong_coerce_to_string(
vm,
&algo,
"evaluating outputHashAlgo of a derivation",
)?;
let digest_str = hash
.force(vm)?
.coerce_to_string(CoercionKind::Strong, vm)?
.as_str()
.to_string();
let digest_str =
strong_coerce_to_string(vm, &hash, "evaluating outputHash of a derivation")?;
let hash_mode = match hash_mode {
None => None,
Some(mode) => Some(
mode.force(vm)?
.coerce_to_string(CoercionKind::Strong, vm)?
.as_str()
.to_string(),
),
Some(mode) => Some(strong_coerce_to_string(
vm,
&mode,
"evaluating outputHashMode of a derivation",
)?),
};
// construct out.hash
@ -227,13 +223,11 @@ fn handle_derivation_parameters(
"args" => {
let args = value.to_list()?;
for arg in args {
drv.arguments.push(
arg.force(vm)?
.coerce_to_string(CoercionKind::Strong, vm)
.context("handling command-line builder arguments")?
.as_str()
.to_string(),
);
drv.arguments.push(strong_coerce_to_string(
vm,
&arg,
"handling command-line builder arguments",
)?);
}
// The arguments do not appear in the environment.
@ -264,6 +258,16 @@ fn handle_derivation_parameters(
Ok(true)
}
fn strong_coerce_to_string(vm: &mut VM, val: &Value, ctx: &str) -> Result<String, ErrorKind> {
Ok(val
.force(vm)
.context(ctx)?
.coerce_to_string(CoercionKind::Strong, vm)
.context(ctx)?
.as_str()
.to_string())
}
#[builtins(state = "Rc<RefCell<KnownPaths>>")]
mod derivation_builtins {
use super::*;
@ -316,11 +320,7 @@ mod derivation_builtins {
continue;
}
let val_str = value
.force(vm)?
.coerce_to_string(CoercionKind::Strong, vm)?
.as_str()
.to_string();
let val_str = strong_coerce_to_string(vm, &value, "evaluating derivation attributes")?;
// handle_derivation_parameters tells us whether the
// argument should be added to the environment; continue