Update libpgfmt to 1.2 and add pg_dump style support

CLAUDE.md

@@ -33,7 +33,7 @@ This is a Cargo workspace with five crates:
 - **postgres-lsp-parse** — Document model with tree-sitter incremental parsing, parser pool, and PL/pgSQL injection handling. Core types: `Document`, `ParserPool`.
 - **postgres-lsp-analysis** — Symbol extraction from parse trees, `DashMap`-backed workspace index, name resolution, completion, and hover logic. Core types: `Symbol`, `SymbolKind`, `QualifiedName`, `WorkspaceIndex`.
 - **postgres-lsp-schema** — Optional live database introspection via `tokio-postgres` against `pg_catalog` (Phase 7).
-- **postgres-lsp-format** — SQL formatting powered by [libpgfmt](https://crates.io/crates/libpgfmt). Supports 7 styles (River, Mozilla, Aweber, Dbt, Gitlab, Kickstarter, Mattmc3). Public API: `format_sql(source, options)` and `FormatOptions { style }`.
+- **postgres-lsp-format** — SQL formatting powered by [libpgfmt](https://crates.io/crates/libpgfmt). Supports 8 styles (River, Mozilla, Aweber, Dbt, Gitlab, Kickstarter, Mattmc3, PgDump). Public API: `format_sql(source, options)` and `FormatOptions { style }`.
 - **postgres-lsp** — Binary crate implementing the LSP via `tower-lsp`. Handles document sync, diagnostics, semantic tokens, go-to-definition, find references, completion, hover, document/workspace symbols, folding ranges, and rename.
 
 ### Key Design Constraints

Cargo.toml

@@ -26,5 +26,5 @@ serde_json = "1"
 tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 thiserror = "2"
-libpgfmt = "1"
+libpgfmt = "1.2"
 

README.md

@@ -12,10 +12,41 @@ A Language Server Protocol (LSP) implementation for PostgreSQL and PL/pgSQL, bui
 - **Find References** — Find all usages of a symbol across the workspace
 - **Hover** — Show definition source on hover
 - **Completion** — Context-aware completion for keywords, tables, columns, and functions
+- **Signature Help** — Parameter hints for function calls
 - **Folding Ranges** — Collapse multi-line statements
 - **Rename** — Rename symbols across the workspace
+- **Code Actions** — Quick fixes and refactor rewrites
+- **Formatting** — Reformat SQL using one of several style guides
 - **PL/pgSQL Support** — Parses PL/pgSQL function bodies with language injection
 
+## Installation
+
+### Homebrew (macOS / Linux)
+
+```bash
+brew tap gmr/postgres
+brew install postgres-lsp
+```
+
+> [!NOTE]
+> Homebrew 6.0 added [tap trust](https://docs.brew.sh/Tap-Trust), and some
+> versions fail to install third-party taps inside the build sandbox (the
+> error mentions `build.rb ... exited with 1`). If you hit this, trust the
+> formula first:
+>
+> ```bash
+> brew trust --formula gmr/postgres/postgres-lsp
+> ```
+>
+> or, as a temporary workaround, set `HOMEBREW_NO_REQUIRE_TAP_TRUST=1` for
+> the install.
+
+### From Source (via Cargo)
+
+```bash
+cargo install postgres-lsp
+```
+
 ## Building
 
 ```bash
@@ -29,10 +60,10 @@ Requires the [tree-sitter-postgres](https://github.com/gmr/tree-sitter-postgres)
 The server communicates over stdio:
 
 ```bash
-cargo run -p pg-lsp
+cargo run -p postgres-lsp
 ```
 
-Configure your editor to use `pg-lsp` as the language server for `.sql` files.
+Configure your editor to use `postgres-lsp` as the language server for `.sql` files.
 
 ## License
 

crates/postgres-lsp-format/src/formatter.rs

@@ -90,6 +90,24 @@ mod tests {
         );
     }
 
+    #[test]
+    fn format_with_pg_dump_style() {
+        let sql = "select a, b from users where active = true";
+        let opts = FormatOptions {
+            style: Style::PgDump,
+        };
+        let result = format_sql(sql, &opts).unwrap();
+        assert!(
+            result.contains("SELECT"),
+            "expected uppercase SELECT with pg_dump style, got: {result}"
+        );
+    }
+
+    #[test]
+    fn parse_pg_dump_style() {
+        assert_eq!("pg_dump".parse::<Style>().unwrap(), Style::PgDump);
+    }
+
     #[test]
     fn format_plpgsql_block() {
         let code = "begin\nraise notice 'hello';\nend;";

crates/postgres-lsp/src/main.rs

@@ -21,7 +21,7 @@ struct Cli {
         short = 's',
         default_value = "aweber",
         value_parser = parse_style,
-        help = "Formatting style: river, mozilla, aweber, dbt, gitlab, kickstarter, mattmc3"
+        help = "Formatting style: river, mozilla, aweber, dbt, gitlab, kickstarter, mattmc3, pg_dump"
     )]
     format_style: Style,
 
@@ -38,7 +38,7 @@ struct Cli {
 fn parse_style(s: &str) -> Result<Style, String> {
     s.parse::<Style>().map_err(|_| {
         format!(
-            "unknown style '{s}'; options: river, mozilla, aweber, dbt, gitlab, kickstarter, mattmc3"
+            "unknown style '{s}'; options: river, mozilla, aweber, dbt, gitlab, kickstarter, mattmc3, pg_dump"
         )
     })
 }