feat(fmt): support SQL

cli/Cargo.toml

@@ -151,6 +151,8 @@ serde_repr.workspace = true
 sha2.workspace = true
 shell-escape = "=0.1.5"
 spki = { version = "0.7", features = ["pem"] }
+# NOTE(bartlomieju): for now using github URL, because 0.3.2 with important fixes hasn't been released yet.
+sqlformat = { git = "https://github.com/shssoichiro/sqlformat-rs.git", rev = "827d639" }
 strsim = "0.11.1"
 tar.workspace = true
 tempfile.workspace = true

cli/args/flags.rs

@@ -210,6 +210,7 @@ pub struct FmtFlags {
   pub no_semicolons: Option<bool>,
   pub watch: Option<WatchFlags>,
   pub unstable_component: bool,
+  pub unstable_sql: bool,
 }
 
 impl FmtFlags {
@@ -2291,7 +2292,7 @@ Ignore formatting a file by adding an ignore comment at the top of the file:
           .value_parser([
             "ts", "tsx", "js", "jsx", "md", "json", "jsonc", "css", "scss",
             "sass", "less", "html", "svelte", "vue", "astro", "yml", "yaml",
-            "ipynb",
+            "ipynb", "sql"
           ])
           .help_heading(FMT_HEADING).requires("files"),
       )
@@ -2410,6 +2411,14 @@ Ignore formatting a file by adding an ignore comment at the top of the file:
           .help_heading(FMT_HEADING)
           .hide(true),
       )
+      .arg(
+        Arg::new("unstable-sql")
+        .long("unstable-sql")
+        .help("Enable formatting SQL files.")
+        .value_parser(FalseyValueParser::new())
+        .action(ArgAction::SetTrue)
+        .help_heading(FMT_HEADING),
+      )
   })
 }
 
@@ -4634,6 +4643,7 @@ fn fmt_parse(
   let prose_wrap = matches.remove_one::<String>("prose-wrap");
   let no_semicolons = matches.remove_one::<bool>("no-semicolons");
   let unstable_component = matches.get_flag("unstable-component");
+  let unstable_sql = matches.get_flag("unstable-sql");
 
   flags.subcommand = DenoSubcommand::Fmt(FmtFlags {
     check: matches.get_flag("check"),
@@ -4646,6 +4656,7 @@ fn fmt_parse(
     no_semicolons,
     watch: watch_arg_parse(matches)?,
     unstable_component,
+    unstable_sql,
   });
   Ok(())
 }
@@ -6565,6 +6576,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ..Flags::default()
@@ -6588,6 +6600,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ..Flags::default()
@@ -6611,6 +6624,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ..Flags::default()
@@ -6634,6 +6648,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Some(Default::default()),
         }),
         ..Flags::default()
@@ -6648,7 +6663,8 @@ mod tests {
       "--unstable-css",
       "--unstable-html",
       "--unstable-component",
-      "--unstable-yaml"
+      "--unstable-yaml",
+      "--unstable-sql"
     ]);
     assert_eq!(
       r.unwrap(),
@@ -6666,6 +6682,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: true,
+          unstable_sql: true,
           watch: Some(WatchFlags {
             hmr: false,
             no_clear_screen: true,
@@ -6700,6 +6717,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Some(Default::default()),
         }),
         ..Flags::default()
@@ -6723,6 +6741,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         config_flag: ConfigFlag::Path("deno.jsonc".to_string()),
@@ -6754,6 +6773,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Some(Default::default()),
         }),
         config_flag: ConfigFlag::Path("deno.jsonc".to_string()),
@@ -6790,6 +6810,7 @@ mod tests {
           prose_wrap: Some("never".to_string()),
           no_semicolons: Some(true),
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ..Flags::default()
@@ -6820,6 +6841,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: Some(false),
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ..Flags::default()
@@ -6845,6 +6867,7 @@ mod tests {
           prose_wrap: None,
           no_semicolons: None,
           unstable_component: false,
+          unstable_sql: false,
           watch: Default::default(),
         }),
         ext: Some("html".to_string()),

cli/args/mod.rs

@@ -289,6 +289,7 @@ impl BenchOptions {
 #[derive(Clone, Debug, Default, PartialEq, Eq, Hash)]
 pub struct UnstableFmtOptions {
   pub component: bool,
+  pub sql: bool,
 }
 
 #[derive(Clone, Debug)]
@@ -322,6 +323,7 @@ impl FmtOptions {
       options: resolve_fmt_options(fmt_flags, fmt_config.options),
       unstable: UnstableFmtOptions {
         component: unstable.component || fmt_flags.unstable_component,
+        sql: unstable.sql || fmt_flags.unstable_sql,
       },
       files: fmt_config.files,
     }
@@ -1319,6 +1321,7 @@ impl CliOptions {
     let workspace = self.workspace();
     UnstableFmtOptions {
       component: workspace.has_unstable("fmt-component"),
+      sql: workspace.has_unstable("fmt-sql"),
     }
   }
 
@@ -1667,6 +1670,7 @@ impl CliOptions {
           "byonm",
           "bare-node-builtins",
           "fmt-component",
+          "fmt-sql",
         ])
         .collect();
 

cli/lsp/language_server.rs

@@ -1405,6 +1405,9 @@ impl Inner {
         component: config_data
           .map(|d| d.unstable.contains("fmt-component"))
           .unwrap_or(false),
+        sql: config_data
+          .map(|d| d.unstable.contains("fmt-sql"))
+          .unwrap_or(false),
       };
       let document = document.clone();
       move || {

cli/schemas/config-file.v1.json

@@ -557,6 +557,7 @@
           "ffi",
           "fs",
           "fmt-component",
+          "fmt-sql",
           "http",
           "kv",
           "net",

cli/tools/fmt.rs

@@ -272,6 +272,7 @@ fn format_markdown(
           | "njk"
           | "yml"
           | "yaml"
+          | "sql"
       ) {
         // It's important to tell dprint proper file extension, otherwise
         // it might parse the file twice.
@@ -301,6 +302,13 @@ fn format_markdown(
             }
           }
           "yml" | "yaml" => format_yaml(text, fmt_options),
+          "sql" => {
+            if unstable_options.sql {
+              format_sql(text, fmt_options)
+            } else {
+              Ok(None)
+            }
+          }
           _ => {
             let mut codeblock_config =
               get_resolved_typescript_config(fmt_options);
@@ -503,7 +511,48 @@ pub fn format_html(
   })
 }
 
-/// Formats a single TS, TSX, JS, JSX, JSONC, JSON, MD, or IPYNB file.
+pub fn format_sql(
+  file_text: &str,
+  fmt_options: &FmtOptionsConfig,
+) -> Result<Option<String>, AnyError> {
+  let ignore_file = file_text
+    .lines()
+    .take_while(|line| line.starts_with("--"))
+    .any(|line| {
+      line
+        .strip_prefix("--")
+        .unwrap()
+        .trim()
+        .starts_with("deno-fmt-ignore-file")
+    });
+
+  if ignore_file {
+    return Ok(None);
+  }
+
+  let mut formatted_str = sqlformat::format(
+    file_text,
+    &sqlformat::QueryParams::None,
+    &sqlformat::FormatOptions {
+      ignore_case_convert: None,
+      indent: if fmt_options.use_tabs.unwrap_or_default() {
+        sqlformat::Indent::Tabs
+      } else {
+        sqlformat::Indent::Spaces(fmt_options.indent_width.unwrap_or(2))
+      },
+      // leave one blank line between queries.
+      lines_between_queries: 2,
+      uppercase: Some(true),
+    },
+  );
+
+  // Add single new line to the end of file.
+  formatted_str.push('\n');
+
+  Ok(Some(formatted_str))
+}
+
+/// Formats a single TS, TSX, JS, JSX, JSONC, JSON, MD, IPYNB or SQL file.
 pub fn format_file(
   file_path: &Path,
   file_text: &str,
@@ -538,6 +587,13 @@ pub fn format_file(
         format_file(file_path, &file_text, fmt_options, unstable_options, None)
       },
     ),
+    "sql" => {
+      if unstable_options.sql {
+        format_sql(file_text, fmt_options)
+      } else {
+        Ok(None)
+      }
+    }
     _ => {
       let config = get_resolved_typescript_config(fmt_options);
       dprint_plugin_typescript::format_text(
@@ -1209,6 +1265,7 @@ fn is_supported_ext_fmt(path: &Path) -> bool {
         | "yml"
         | "yaml"
         | "ipynb"
+        | "sql"
     )
   })
 }
@@ -1269,6 +1326,11 @@ mod test {
     assert!(is_supported_ext_fmt(Path::new("foo.yaml")));
     assert!(is_supported_ext_fmt(Path::new("foo.YaML")));
     assert!(is_supported_ext_fmt(Path::new("foo.ipynb")));
+    assert!(is_supported_ext_fmt(Path::new("foo.sql")));
+    assert!(is_supported_ext_fmt(Path::new("foo.Sql")));
+    assert!(is_supported_ext_fmt(Path::new("foo.sQl")));
+    assert!(is_supported_ext_fmt(Path::new("foo.sqL")));
+    assert!(is_supported_ext_fmt(Path::new("foo.SQL")));
   }
 
   #[test]