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//! Applies structured search replace rules from the command line.
use crate::cli::{load_cargo::load_cargo, Result};
use ra_ide::SourceFileEdit;
use ra_ssr::{MatchFinder, SsrPattern, SsrRule};
pub fn apply_ssr_rules(rules: Vec<SsrRule>) -> Result<()> {
use ra_db::SourceDatabaseExt;
use ra_ide_db::symbol_index::SymbolsDatabase;
let (host, vfs) = load_cargo(&std::env::current_dir()?, true, true)?;
let db = host.raw_database();
let mut match_finder = MatchFinder::new(db);
for rule in rules {
match_finder.add_rule(rule);
}
let mut edits = Vec::new();
for &root in db.local_roots().iter() {
let sr = db.source_root(root);
for file_id in sr.iter() {
if let Some(edit) = match_finder.edits_for_file(file_id) {
edits.push(SourceFileEdit { file_id, edit });
}
}
}
for edit in edits {
if let Some(path) = vfs.file_path(edit.file_id).as_path() {
let mut contents = db.file_text(edit.file_id).to_string();
edit.edit.apply(&mut contents);
std::fs::write(path, contents)?;
}
}
Ok(())
}
/// Searches for `patterns`, printing debug information for any nodes whose text exactly matches
/// `debug_snippet`. This is intended for debugging and probably isn't in it's current form useful
/// for much else.
pub fn search_for_patterns(patterns: Vec<SsrPattern>, debug_snippet: Option<String>) -> Result<()> {
use ra_db::SourceDatabaseExt;
use ra_ide_db::symbol_index::SymbolsDatabase;
let (host, vfs) = load_cargo(&std::env::current_dir()?, true, true)?;
let db = host.raw_database();
let mut match_finder = MatchFinder::new(db);
for pattern in patterns {
match_finder.add_search_pattern(pattern);
}
for &root in db.local_roots().iter() {
let sr = db.source_root(root);
for file_id in sr.iter() {
if let Some(debug_snippet) = &debug_snippet {
for debug_info in match_finder.debug_where_text_equal(file_id, debug_snippet) {
println!("{:#?}", debug_info);
}
} else {
let matches = match_finder.find_matches_in_file(file_id);
if !matches.matches.is_empty() {
let matches = matches.flattened().matches;
if let Some(path) = vfs.file_path(file_id).as_path() {
println!("{} matches in '{}'", matches.len(), path.to_string_lossy());
}
// We could possibly at some point do something more useful than just printing
// the matched text. For now though, that's the easiest thing to do.
for m in matches {
println!("{}", m.matched_text());
}
}
}
}
}
Ok(())
}
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