mirror of
https://github.com/nushell/nushell.git
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Initial SQLite functionality (#5182)
* Add SQLite functionality to open * Add in-memory SQLite tests * clippy fixes * Fix up old SQLite-related tests
This commit is contained in:
parent
87c684c7da
commit
c150e11cb4
45
Cargo.lock
generated
45
Cargo.lock
generated
@ -1009,6 +1009,12 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "fallible-iterator"
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version = "0.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4443176a9f2c162692bd3d352d745ef9413eec5782a80d8fd6f8a1ac692a07f7"
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[[package]]
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name = "fallible-streaming-iterator"
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version = "0.1.9"
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@ -1392,6 +1398,9 @@ name = "hashbrown"
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version = "0.11.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ab5ef0d4909ef3724cc8cce6ccc8572c5c817592e9285f5464f8e86f8bd3726e"
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dependencies = [
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"ahash",
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]
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[[package]]
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name = "hashbrown"
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@ -1403,6 +1412,15 @@ dependencies = [
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"rayon",
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]
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[[package]]
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name = "hashlink"
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version = "0.7.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "7249a3129cbc1ffccd74857f81464a323a152173cdb134e0fd81bc803b29facf"
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dependencies = [
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"hashbrown 0.11.2",
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]
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[[package]]
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name = "heapless"
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version = "0.5.6"
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@ -1815,6 +1833,17 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "libsqlite3-sys"
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version = "0.24.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "898745e570c7d0453cc1fbc4a701eb6c662ed54e8fec8b7d14be137ebeeb9d14"
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dependencies = [
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"cc",
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"pkg-config",
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"vcpkg",
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]
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[[package]]
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name = "libssh2-sys"
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version = "0.2.23"
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@ -2342,6 +2371,7 @@ dependencies = [
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"regex",
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"reqwest",
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"roxmltree",
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"rusqlite",
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"rust-embed",
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"serde",
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"serde_ini",
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@ -3607,6 +3637,21 @@ dependencies = [
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"syn",
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]
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[[package]]
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name = "rusqlite"
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version = "0.27.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "85127183a999f7db96d1a976a309eebbfb6ea3b0b400ddd8340190129de6eb7a"
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dependencies = [
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"bitflags",
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"fallible-iterator",
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"fallible-streaming-iterator",
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"hashlink",
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"libsqlite3-sys",
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"memchr",
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"smallvec",
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]
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[[package]]
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name = "rust-embed"
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version = "6.3.0"
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@ -24,6 +24,7 @@ nu-term-grid = { path = "../nu-term-grid", version = "0.61.0" }
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nu-test-support = { path = "../nu-test-support", version = "0.61.0" }
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nu-utils = { path = "../nu-utils", version = "0.61.0" }
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nu-ansi-term = "0.45.1"
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rusqlite = { version = "0.27.0", features = ["bundled"] }
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# Potential dependencies for extras
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base64 = "0.13.0"
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@ -270,11 +270,6 @@ fn features_enabled() -> Vec<String> {
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// names.push("bson".to_string());
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// }
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// #[cfg(feature = "sqlite")]
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// {
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// names.push("sqlite".to_string());
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// }
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// #[cfg(feature = "s3")]
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// {
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// names.push("s3".to_string());
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@ -2,10 +2,12 @@ use nu_engine::{eval_block, get_full_help, 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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Category, Example, IntoPipelineData, PipelineData, RawStream, ShellError, Signature, Spanned,
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SyntaxShape, Value,
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Category, Example, IntoPipelineData, PipelineData, RawStream, ShellError, Signature, Span,
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Spanned, SyntaxShape, Value,
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};
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use std::io::{BufRead, BufReader, Read};
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use rusqlite::types::ValueRef;
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use rusqlite::{Connection, Row};
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use std::io::{BufRead, BufReader, Read, Seek};
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#[cfg(unix)]
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use std::os::unix::fs::PermissionsExt;
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@ -91,33 +93,38 @@ impl Command for Open {
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);
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#[cfg(not(unix))]
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let error_msg = String::from("Permission denied");
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Ok(PipelineData::Value(
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Value::Error {
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error: ShellError::SpannedLabeledError(
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"Permission denied".into(),
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error_msg,
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arg_span,
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),
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},
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None,
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Err(ShellError::SpannedLabeledError(
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"Permission denied".into(),
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error_msg,
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arg_span,
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))
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} else {
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let file = match std::fs::File::open(path) {
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let mut file = match std::fs::File::open(path) {
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Ok(file) => file,
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Err(err) => {
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return Ok(PipelineData::Value(
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Value::Error {
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error: ShellError::SpannedLabeledError(
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"Permission denied".into(),
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err.to_string(),
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arg_span,
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),
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},
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None,
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return Err(ShellError::SpannedLabeledError(
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"Permission denied".into(),
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err.to_string(),
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arg_span,
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));
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}
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};
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// Peek at the file to see if we can detect a SQLite database
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if !raw {
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let sqlite_magic_bytes = "SQLite format 3\0".as_bytes();
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let mut buf: [u8; 16] = [0; 16];
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if file.read_exact(&mut buf).is_ok() && buf == sqlite_magic_bytes {
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return open_and_read_sqlite_db(path, call_span)
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.map(|val| PipelineData::Value(val, None));
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}
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if file.rewind().is_err() {
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return Err(ShellError::IOError("Failed to rewind file".into()));
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};
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}
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let buf_reader = BufReader::new(file);
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let output = PipelineData::ExternalStream {
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@ -161,7 +168,7 @@ impl Command for Open {
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fn examples(&self) -> Vec<nu_protocol::Example> {
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vec![
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Example {
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description: "Open a file, with structure (based on file extension)",
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description: "Open a file, with structure (based on file extension or SQLite database header)",
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example: "open myfile.json",
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result: None,
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},
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@ -184,6 +191,104 @@ impl Command for Open {
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}
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}
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fn open_and_read_sqlite_db(path: &Path, call_span: Span) -> Result<Value, nu_protocol::ShellError> {
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let path = path.to_string_lossy().to_string();
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match Connection::open(path) {
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Ok(conn) => match read_sqlite_db(conn, call_span) {
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Ok(data) => Ok(data),
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Err(err) => Err(ShellError::SpannedLabeledError(
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"Failed to read from SQLite database".into(),
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err.to_string(),
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call_span,
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)),
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},
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Err(err) => Err(ShellError::SpannedLabeledError(
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"Failed to open SQLite database".into(),
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err.to_string(),
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call_span,
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)),
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}
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}
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fn read_sqlite_db(conn: Connection, call_span: Span) -> Result<Value, rusqlite::Error> {
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let mut table_names: Vec<String> = Vec::new();
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let mut tables: Vec<Value> = Vec::new();
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let mut get_table_names =
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conn.prepare("SELECT name from sqlite_master where type = 'table'")?;
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let rows = get_table_names.query_map([], |row| row.get(0))?;
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for row in rows {
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let table_name: String = row?;
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table_names.push(table_name.clone());
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let mut rows = Vec::new();
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let mut table_stmt = conn.prepare(&format!("select * from [{}]", table_name))?;
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let mut table_rows = table_stmt.query([])?;
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while let Some(table_row) = table_rows.next()? {
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rows.push(convert_sqlite_row_to_nu_value(table_row, call_span))
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}
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let table_record = Value::List {
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vals: rows,
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span: call_span,
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};
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tables.push(table_record);
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}
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Ok(Value::Record {
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cols: table_names,
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vals: tables,
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span: call_span,
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})
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}
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fn convert_sqlite_row_to_nu_value(row: &Row, span: Span) -> Value {
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let mut vals = Vec::new();
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let colnamestr = row.as_ref().column_names().to_vec();
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let colnames = colnamestr.iter().map(|s| s.to_string()).collect();
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for (i, c) in row.as_ref().column_names().iter().enumerate() {
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let _column = c.to_string();
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let val = convert_sqlite_value_to_nu_value(row.get_ref_unwrap(i), span);
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vals.push(val);
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}
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Value::Record {
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cols: colnames,
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vals,
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span,
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}
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}
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fn convert_sqlite_value_to_nu_value(value: ValueRef, span: Span) -> Value {
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match value {
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ValueRef::Null => Value::Nothing { span },
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ValueRef::Integer(i) => Value::Int { val: i, span },
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ValueRef::Real(f) => Value::Float { val: f, span },
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ValueRef::Text(buf) => {
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let s = match std::str::from_utf8(buf) {
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Ok(v) => v,
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Err(_) => {
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return Value::Error {
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error: ShellError::NonUtf8(span),
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}
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}
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};
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Value::String {
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val: s.to_string(),
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span,
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}
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}
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ValueRef::Blob(u) => Value::Binary {
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val: u.to_vec(),
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span,
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},
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}
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}
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fn permission_denied(dir: impl AsRef<Path>) -> bool {
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match dir.as_ref().read_dir() {
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Err(e) => matches!(e.kind(), std::io::ErrorKind::PermissionDenied),
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@ -224,3 +329,109 @@ impl<R: Read> Iterator for BufferedReader<R> {
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}
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}
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}
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#[cfg(test)]
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mod test {
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use super::*;
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#[test]
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fn can_read_empty_db() {
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let db = Connection::open_in_memory().unwrap();
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let converted_db = read_sqlite_db(db, Span::test_data()).unwrap();
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let expected = Value::Record {
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cols: vec![],
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vals: vec![],
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span: Span::test_data(),
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};
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assert_eq!(converted_db, expected);
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}
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#[test]
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fn can_read_empty_table() {
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let db = Connection::open_in_memory().unwrap();
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db.execute(
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"CREATE TABLE person (
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id INTEGER PRIMARY KEY,
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name TEXT NOT NULL,
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data BLOB
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)",
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[],
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)
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.unwrap();
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let converted_db = read_sqlite_db(db, Span::test_data()).unwrap();
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let expected = Value::Record {
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cols: vec!["person".to_string()],
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vals: vec![Value::List {
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vals: vec![],
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span: Span::test_data(),
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}],
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span: Span::test_data(),
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};
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assert_eq!(converted_db, expected);
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}
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#[test]
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fn can_read_null_and_non_null_data() {
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let span = Span::test_data();
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let db = Connection::open_in_memory().unwrap();
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db.execute(
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"CREATE TABLE item (
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id INTEGER PRIMARY KEY,
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name TEXT
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)",
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[],
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)
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.unwrap();
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db.execute("INSERT INTO item (id, name) VALUES (123, NULL)", [])
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.unwrap();
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db.execute("INSERT INTO item (id, name) VALUES (456, 'foo bar')", [])
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.unwrap();
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let converted_db = read_sqlite_db(db, span).unwrap();
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let expected = Value::Record {
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cols: vec!["item".to_string()],
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vals: vec![Value::List {
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vals: vec![
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Value::Record {
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cols: vec!["id".to_string(), "name".to_string()],
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vals: vec![
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Value::Int {
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val: 123,
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span: span,
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},
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Value::Nothing { span: span },
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],
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span: span,
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},
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Value::Record {
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cols: vec!["id".to_string(), "name".to_string()],
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vals: vec![
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Value::Int {
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val: 456,
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span: span,
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},
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Value::String {
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val: "foo bar".to_string(),
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span: span,
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},
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],
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span: span,
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},
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],
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span: span,
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}],
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span,
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};
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assert_eq!(converted_db, expected);
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}
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}
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|
@ -93,7 +93,7 @@ fn md5_works_with_file() {
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let actual = nu!(
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cwd: "tests/fixtures/formats", pipeline(
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r#"
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open sample.db | hash md5
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open sample.db --raw | hash md5
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"#
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)
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);
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@ -106,7 +106,7 @@ fn sha256_works_with_file() {
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let actual = nu!(
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cwd: "tests/fixtures/formats", pipeline(
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r#"
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open sample.db | hash sha256
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open sample.db --raw | hash sha256
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"#
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)
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);
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|
@ -84,63 +84,38 @@ fn parses_more_bson_complexity() {
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// sample.db has the following format:
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//
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// ━━━┯━━━━━━━━━━━━┯━━━━━━━━━━━━━━
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// # │ table_name │ table_values
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// ───┼────────────┼──────────────
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// 0 │ strings │ [6 items]
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// 1 │ ints │ [5 items]
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// 2 │ floats │ [4 items]
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// ━━━┷━━━━━━━━━━━━┷━━━━━━━━━━━━━━
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// ╭─────────┬────────────────╮
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// │ strings │ [table 6 rows] │
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// │ ints │ [table 5 rows] │
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// │ floats │ [table 4 rows] │
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// ╰─────────┴────────────────╯
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//
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// In this case, this represents a sqlite database
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// with three tables named `strings`, `ints`, and `floats`.
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// The table_values represent the values for the tables:
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//
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// ━━━━┯━━━━━━━┯━━━━━━━━━━┯━━━━━━┯━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
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// # │ x │ y │ z │ f
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// ────┼───────┼──────────┼──────┼──────────────────────────────────────────────────────────────────────
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// 0 │ hello │ <binary> │ │
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// 1 │ hello │ <binary> │ │
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// 2 │ hello │ <binary> │ │
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// 3 │ hello │ <binary> │ │
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// 4 │ world │ <binary> │ │
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// 5 │ world │ <binary> │ │
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// 6 │ │ │ 1 │
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// 7 │ │ │ 42 │
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// 8 │ │ │ 425 │
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// 9 │ │ │ 4253 │
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// 10 │ │ │ │
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// 11 │ │ │ │ 3.400000000000000
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// 12 │ │ │ │ 3.141592650000000
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// 13 │ │ │ │ 23.00000000000000
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// 14 │ │ │ │ this string that doesn't really belong here but sqlite is what it is
|
||||
// ━━━━┷━━━━━━━┷━━━━━━━━━━┷━━━━━━┷━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
|
||||
//
|
||||
// We can see here that each table has different columns. `strings` has `x` and `y`, while
|
||||
// `ints` has just `z`, and `floats` has only the column `f`. This means, in general, when working
|
||||
// Each table has different columns. `strings` has `x` and `y`, while
|
||||
// `ints` has just `z`, and `floats` has only the column `f`. In general, when working
|
||||
// with sqlite, one will want to select a single table, e.g.:
|
||||
//
|
||||
// open sample.db | select 1 | get table_values
|
||||
// ━━━┯━━━━━━
|
||||
// # │ z
|
||||
// ───┼──────
|
||||
// 0 │ 1
|
||||
// 1 │ 42
|
||||
// 2 │ 425
|
||||
// 3 │ 4253
|
||||
// 4 │
|
||||
// ━━━┷━━━━━━
|
||||
// open sample.db | get ints
|
||||
// ╭───┬──────╮
|
||||
// │ # │ z │
|
||||
// ├───┼──────┤
|
||||
// │ 0 │ 1 │
|
||||
// │ 1 │ 42 │
|
||||
// │ 2 │ 425 │
|
||||
// │ 3 │ 4253 │
|
||||
// │ 4 │ │
|
||||
// ╰───┴──────╯
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn parses_sqlite() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| get table_values
|
||||
| select 2
|
||||
| get x
|
||||
| get strings
|
||||
| get x.0
|
||||
"#
|
||||
));
|
||||
|
||||
|
@ -1,6 +1,4 @@
|
||||
use nu_test_support::nu;
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
use nu_test_support::pipeline;
|
||||
|
||||
#[test]
|
||||
@ -43,36 +41,16 @@ fn where_not_in_table() {
|
||||
assert_eq!(actual.out, "4");
|
||||
}
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn explicit_block_condition() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| first 4
|
||||
| where {= $it.z > 4200}
|
||||
| get z
|
||||
"#
|
||||
));
|
||||
|
||||
assert_eq!(actual.out, "4253");
|
||||
}
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn binary_operator_comparisons() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| get ints
|
||||
| first 4
|
||||
| where z > 4200
|
||||
| get z
|
||||
| get z.0
|
||||
"#
|
||||
));
|
||||
|
||||
@ -82,11 +60,10 @@ fn binary_operator_comparisons() {
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| get ints
|
||||
| first 4
|
||||
| where z >= 4253
|
||||
| get z
|
||||
| get z.0
|
||||
"#
|
||||
));
|
||||
|
||||
@ -96,11 +73,10 @@ fn binary_operator_comparisons() {
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| get ints
|
||||
| first 4
|
||||
| where z < 10
|
||||
| get z
|
||||
| get z.0
|
||||
"#
|
||||
));
|
||||
|
||||
@ -110,11 +86,10 @@ fn binary_operator_comparisons() {
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| get ints
|
||||
| first 4
|
||||
| where z <= 1
|
||||
| get z
|
||||
| get z.0
|
||||
"#
|
||||
));
|
||||
|
||||
@ -124,8 +99,7 @@ fn binary_operator_comparisons() {
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == ints
|
||||
| get table_values
|
||||
| get ints
|
||||
| where z != 1
|
||||
| first 1
|
||||
| get z
|
||||
@ -135,15 +109,13 @@ fn binary_operator_comparisons() {
|
||||
assert_eq!(actual.out, "42");
|
||||
}
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn contains_operator() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == strings
|
||||
| get table_values
|
||||
| get strings
|
||||
| where x =~ ell
|
||||
| length
|
||||
"#
|
||||
@ -155,8 +127,7 @@ fn contains_operator() {
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| where table_name == strings
|
||||
| get table_values
|
||||
| get strings
|
||||
| where x !~ ell
|
||||
| length
|
||||
"#
|
||||
|
@ -7,7 +7,6 @@ mod json;
|
||||
mod markdown;
|
||||
mod nuon;
|
||||
mod ods;
|
||||
mod sqlite;
|
||||
mod ssv;
|
||||
mod toml;
|
||||
mod tsv;
|
||||
|
@ -1,36 +0,0 @@
|
||||
#[cfg(feature = "sqlite")]
|
||||
use nu_test_support::{nu, pipeline};
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn table_to_sqlite_and_back_into_table() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| to sqlite
|
||||
| from sqlite
|
||||
| get table_values
|
||||
| select 2
|
||||
| get x
|
||||
"#
|
||||
));
|
||||
|
||||
assert_eq!(actual.out, "hello");
|
||||
}
|
||||
|
||||
#[cfg(feature = "sqlite")]
|
||||
#[test]
|
||||
fn table_to_sqlite_and_back_into_table_select_table() {
|
||||
let actual = nu!(
|
||||
cwd: "tests/fixtures/formats", pipeline(
|
||||
r#"
|
||||
open sample.db
|
||||
| to sqlite
|
||||
| from sqlite -t [strings]
|
||||
| get table_names
|
||||
"#
|
||||
));
|
||||
|
||||
assert_eq!(actual.out, "strings");
|
||||
}
|
Loading…
Reference in New Issue
Block a user