forked from extern/nushell
Fix incorrect handling of boolean flags for builtin commands (#11492)
# Description
Possible fix of #11456
This PR fixes a bug where builtin commands did not respect the logic of
dynamically passed boolean flags. The reason is
[has_flag](6f59abaf43/crates/nu-protocol/src/ast/call.rs (L204C5-L212C6)
)
method did not evaluate and take into consideration expression used with
flag.
To address this issue a solution is proposed:
1. `has_flag` method is moved to `CallExt` and new logic to evaluate
expression and check if it is a boolean value is added
2. `has_flag_const` method is added to `CallExt` which is a constant
version of `has_flag`
3. `has_named` method is added to `Call` which is basically the old
logic of `has_flag`
4. All usages of `has_flag` in code are updated, mostly to pass
`engine_state` and `stack` to new `has_flag`. In `run_const` commands it
is replaced with `has_flag_const`. And in a few select places: parser,
`to nuon` and `into string` old logic via `has_named` is used.
# User-Facing Changes
Explicit values of boolean flags are now respected in builtin commands.
Before:

After:

Another example:
Before:

After:

# Tests + Formatting
Added test reproducing some variants of original issue.
This commit is contained in:
@ -1,3 +1,4 @@
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use nu_engine::CallExt;
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use nu_protocol::ast::Call;
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use nu_protocol::engine::{Command, EngineState, Stack};
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use nu_protocol::{
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@ -40,7 +41,7 @@ impl Command for History {
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fn run(
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&self,
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engine_state: &EngineState,
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_stack: &mut Stack,
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stack: &mut Stack,
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call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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@ -48,8 +49,8 @@ impl Command for History {
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// todo for sqlite history this command should be an alias to `open ~/.config/nushell/history.sqlite3 | get history`
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if let Some(config_path) = nu_path::config_dir() {
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let clear = call.has_flag("clear");
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let long = call.has_flag("long");
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let clear = call.has_flag(engine_state, stack, "clear")?;
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let long = call.has_flag(engine_state, stack, "long")?;
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let ctrlc = engine_state.ctrlc.clone();
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let mut history_path = config_path;
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