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refactor: extract search to its own module
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| //! Interacts with the registry [search API][1]. | ||
| //! | ||
| //! [1]: https://doc.rust-lang.org/nightly/cargo/reference/registry-web-api.html#search | ||
| use std::cmp; | ||
| use std::iter::repeat; | ||
|
|
||
| use anyhow::Context as _; | ||
| use termcolor::Color; | ||
| use termcolor::ColorSpec; | ||
| use url::Url; | ||
|
|
||
| use crate::util::truncate_with_ellipsis; | ||
| use crate::CargoResult; | ||
| use crate::Config; | ||
|
|
||
| pub fn search( | ||
| query: &str, | ||
| config: &Config, | ||
| index: Option<String>, | ||
| limit: u32, | ||
| reg: Option<String>, | ||
| ) -> CargoResult<()> { | ||
| let (mut registry, source_ids) = | ||
| super::registry(config, None, index.as_deref(), reg.as_deref(), false, None)?; | ||
| let (crates, total_crates) = registry.search(query, limit).with_context(|| { | ||
| format!( | ||
| "failed to retrieve search results from the registry at {}", | ||
| registry.host() | ||
| ) | ||
| })?; | ||
|
|
||
| let names = crates | ||
| .iter() | ||
| .map(|krate| format!("{} = \"{}\"", krate.name, krate.max_version)) | ||
| .collect::<Vec<String>>(); | ||
|
|
||
| let description_margin = names.iter().map(|s| s.len() + 4).max().unwrap_or_default(); | ||
|
|
||
| let description_length = cmp::max(80, 128 - description_margin); | ||
|
|
||
| let descriptions = crates.iter().map(|krate| { | ||
| krate | ||
| .description | ||
| .as_ref() | ||
| .map(|desc| truncate_with_ellipsis(&desc.replace("\n", " "), description_length)) | ||
| }); | ||
|
|
||
| for (name, description) in names.into_iter().zip(descriptions) { | ||
| let line = match description { | ||
| Some(desc) => { | ||
| let space = repeat(' ') | ||
| .take(description_margin - name.len()) | ||
| .collect::<String>(); | ||
| name + &space + "# " + &desc | ||
| } | ||
| None => name, | ||
| }; | ||
| let mut fragments = line.split(query).peekable(); | ||
| while let Some(fragment) = fragments.next() { | ||
| let _ = config.shell().write_stdout(fragment, &ColorSpec::new()); | ||
| if fragments.peek().is_some() { | ||
| let _ = config.shell().write_stdout( | ||
| query, | ||
| &ColorSpec::new().set_bold(true).set_fg(Some(Color::Green)), | ||
| ); | ||
| } | ||
| } | ||
| let _ = config.shell().write_stdout("\n", &ColorSpec::new()); | ||
| } | ||
|
|
||
| let search_max_limit = 100; | ||
| if total_crates > limit && limit < search_max_limit { | ||
| let _ = config.shell().write_stdout( | ||
| format_args!( | ||
| "... and {} crates more (use --limit N to see more)\n", | ||
| total_crates - limit | ||
| ), | ||
| &ColorSpec::new(), | ||
| ); | ||
| } else if total_crates > limit && limit >= search_max_limit { | ||
| let extra = if source_ids.original.is_crates_io() { | ||
| let url = Url::parse_with_params("https://crates.io/search", &[("q", query)])?; | ||
| format!(" (go to {url} to see more)") | ||
| } else { | ||
| String::new() | ||
| }; | ||
| let _ = config.shell().write_stdout( | ||
| format_args!("... and {} crates more{}\n", total_crates - limit, extra), | ||
| &ColorSpec::new(), | ||
| ); | ||
| } | ||
|
|
||
| Ok(()) | ||
| } |