allow loading multiple from archives

.gitignore

@@ -5,3 +5,4 @@ result
 *.log
 profile.*
 *.out.*
+/logs

src/logfile/mod.rs

@@ -7,7 +7,7 @@ use crate::logfile::archive::RarArchive;
 use crate::logfile::archive::{Archive, ArchiveEntry, SevenZipArchive, TarArchive, ZipArchive};
 use bzip2_rs::DecoderReader;
 use csv::Reader;
-use dialoguer::Select;
+use dialoguer::MultiSelect;
 use flate2::read::GzDecoder;
 pub use logline::{LineNumber, LogLine};
 use ruzstd::decoding::StreamingDecoder;
@@ -44,15 +44,15 @@ impl LogFile {
     pub fn open<R: Read + Seek>(path: &str, file: R) -> Result<LogFile, ReadError> {
         if path.ends_with(".zip") {
             let mut zip = ZipArchive::new(file)?;
-            return select_file(&mut zip);
+            return select_files(&mut zip);
         } else if path.ends_with(".7z") {
             let mut zip = SevenZipArchive::new(file)?;
-            return select_file(&mut zip);
+            return select_files(&mut zip);
         } else if path.ends_with(".rar") {
             #[cfg(all(unix, not(target_env = "musl")))]
             {
                 let mut rar = RarArchive::new(path)?;
-                return select_file(&mut rar);
+                return select_files(&mut rar);
             }
             #[cfg(target_env = "musl")]
             return Err(ReadError::UnSupportedFormat {
@@ -100,7 +100,7 @@ impl LogFile {
     fn open_no_seek<R: Read>(path: &str, mut file: R) -> Result<LogFile, ReadError> {
         if path.ends_with(".tar") {
             let mut zip = TarArchive::new(file)?;
-            select_file(&mut zip)
+            select_files(&mut zip)
         } else {
             let mut content = String::new();
             file.read_to_string(&mut content)?;
@@ -132,9 +132,8 @@ impl LogFile {
     }
 }
 
-fn select_file<A: Archive>(archive: &mut A) -> Result<LogFile, ReadError> {
-    let entry = {
-        let mut entries = archive
+fn select_files<A: Archive>(archive: &mut A) -> Result<LogFile, ReadError> {
+    let entries = archive
         .entries()
         .filter(|entry| !entry.name().starts_with("__MACOSX") && !entry.name().ends_with('/'))
         .collect::<Vec<_>>();
@@ -143,21 +142,26 @@ fn select_file<A: Archive>(archive: &mut A) -> Result<LogFile, ReadError> {
         return Err(ReadError::NoFiles);
     }
 
-        let index = if entries.len() == 1 {
-            0usize
+    let indices = if entries.len() == 1 {
+        vec![0usize]
     } else {
         let names = entries.iter().map(A::Entry::name).collect::<Vec<_>>();
-            Select::new()
-                .with_prompt("Select file to load?")
+        MultiSelect::new()
+            .with_prompt("Select file(s) to load?")
             .items(&names)
             .interact()
             .unwrap()
     };
 
-        entries.remove(index)
-    };
+    let mut files = Vec::new();
+    for (index, entry) in entries.into_iter().enumerate() {
+        if indices.contains(&index) {
             let name = entry.name().to_string();
             let raw = entry.extract()?;
 
-    LogFile::open(&name, Cursor::new(raw))
+            files.push(LogFile::open(&name, Cursor::new(raw))?);
+        }
+    }
+
+    Ok(LogFile::merge(files))
 }