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Slightly improve new which command (#1145)

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Jonathan Turner 2020-01-01 20:47:25 +13:00 committed by GitHub
parent b304de8199
commit 78016446dc
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 20 additions and 20 deletions
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7
docs/commands/which.md
View file

@ -3,11 +3,14 @@
Finds a program file.
Usage:
> which ...args{flags}
> which <application> {flags}
## Parameters
- ...args: the names of the commands to find the path to
- application: the name of the command to find the path to
## Flags
- --all: list all executables
## Examples

33
src/commands/which_.rs
View file

@ -14,11 +14,8 @@ impl WholeStreamCommand for Which {
fn signature(&self) -> Signature {
Signature::build("which")
.required("application", SyntaxShape::String, "application")
.switch("all", "list all executables")
.rest(
SyntaxShape::String,
"the names of the commands to find the path to",
)
}
fn usage(&self) -> &str {
@ -75,32 +72,32 @@ macro_rules! entry_path {
#[derive(Deserialize, Debug)]
struct WhichArgs {
bin: Tagged<String>,
application: Tagged<String>,
all: bool,
}
fn which(
WhichArgs { bin, all }: WhichArgs,
WhichArgs { application, all }: WhichArgs,
RunnableContext { commands, .. }: RunnableContext,
) -> Result<OutputStream, ShellError> {
let external = bin.starts_with('^');
let external = application.starts_with('^');
let item = if external {
bin.item[1..].to_string()
application.item[1..].to_string()
} else {
bin.item.clone()
application.item.clone()
};
if all {
let stream = async_stream! {
if external {
if let Ok(path) = ichwh::which(&item).await {
yield ReturnSuccess::value(entry_path!(item, path.into(), bin.tag.clone()));
yield ReturnSuccess::value(entry_path!(item, path.into(), application.tag.clone()));
}
}
let builtin = commands.has(&item);
if builtin {
yield ReturnSuccess::value(entry_builtin!(item, bin.tag.clone()));
yield ReturnSuccess::value(entry_builtin!(item, application.tag.clone()));
}
if let Ok(paths) = ichwh::which_all(&item).await {
@ -108,18 +105,18 @@ fn which(
yield Err(ShellError::labeled_error(
"Binary not found for argument, and argument is not a builtin",
"not found",
&bin.tag,
&application.tag,
));
} else {
for path in paths {
yield ReturnSuccess::value(entry_path!(item, path.into(), bin.tag.clone()));
yield ReturnSuccess::value(entry_path!(item, path.into(), application.tag.clone()));
}
}
} else {
yield Err(ShellError::labeled_error(
"Error trying to find binary for argument",
"error",
&bin.tag,
&application.tag,
));
}
};
@ -129,17 +126,17 @@ fn which(
let stream = async_stream! {
if external {
if let Ok(path) = ichwh::which(&item).await {
yield ReturnSuccess::value(entry_path!(item, path.into(), bin.tag.clone()));
yield ReturnSuccess::value(entry_path!(item, path.into(), application.tag.clone()));
}
} else if commands.has(&item) {
yield ReturnSuccess::value(entry_builtin!(item, bin.tag.clone()));
yield ReturnSuccess::value(entry_builtin!(item, application.tag.clone()));
} else if let Ok(path) = ichwh::which(&item).await {
yield ReturnSuccess::value(entry_path!(item, path.into(), bin.tag.clone()));
yield ReturnSuccess::value(entry_path!(item, path.into(), application.tag.clone()));
} else {
yield Err(ShellError::labeled_error(
"Binary not found for argument, and argument is not a builtin",
"not found",
&bin.tag,
&application.tag,
));
}
};