Add --from-gron support (pt 1)

Author: IvanIsCoding

Cargo.lock

@@ -35,7 +35,7 @@ path = "src/documentation.rs"
 default = ["mimalloc", "from-toml", "from-yaml", "greppable"]
 from-toml = ["dep:toml"]
 from-yaml = ["dep:serde-saphyr"]
-greppable = ["dep:gron"]
+greppable = ["dep:gron", "dep:ressa", "dep:resast"]
 
 [dependencies]
 anyhow = "1"
@@ -49,6 +49,8 @@ json5 = "0.4"
 toml = { version = "=0.9.8", default-features = false, features = ["parse", "serde", "preserve_order"], optional = true }
 serde-saphyr = { version = "=0.0.14", default-features = false, optional = true }
 gron = { version = "=0.4.0", optional = true }
+ressa = { version = "=0.8.2", optional = true}
+resast = { version = "=0.5.0", optional = true }
 
 [dev-dependencies]
 tempfile = "3"

Cargo.toml

@@ -72,7 +72,7 @@ impl std::str::FromStr for Argument {
     ),
     group(
         ArgGroup::new("input_format")
-            .args(&["slurp", "from_json5", "from_toml", "from_yaml"])
+            .args(&["slurp", "from_json5", "from_toml", "from_yaml", "from_gron"])
     ),
     group(
         ArgGroup::new("output_style")
@@ -120,6 +120,10 @@ pub struct Cli {
     #[arg(long = "from-yaml")]
     pub from_yaml: bool,
 
+    /// Parse input as gron (greppable output) instead of JSON
+    #[arg(long = "from-gron")]
+    pub from_gron: bool,
+
     /// Parallelism level for NDJSON inputs (number of threads, -1 for all available)
     #[arg(
         short = 'j',
@@ -180,6 +184,7 @@ pub struct InputParameters {
     pub from_json5: bool,
     pub from_toml: bool,
     pub from_yaml: bool,
+    pub from_gron: bool,
     pub parallelism: i32,
     pub sort_keys: bool,
     pub pretty_print: bool,

src/cli.rs

@@ -9,6 +9,7 @@ fn default_params() -> InputParameters {
         from_json5: false,
         from_toml: false,
         from_yaml: false,
+        from_gron: false,
         parallelism: -1,
         sort_keys: false,
         pretty_print: false,

src/input_handler_test.rs

@@ -22,6 +22,11 @@ pub use cli::InputParameters;
 use input_handler::handle_input;
 pub use json2cel::json_to_cel_variables;
 
+#[cfg(feature = "greppable")]
+mod ungron;
+#[cfg(feature = "greppable")]
+pub use ungron::gron_to_json;
+
 #[cfg(feature = "mimalloc")]
 #[global_allocator]
 static GLOBAL: mimalloc::MiMalloc = mimalloc::MiMalloc;
@@ -74,6 +79,7 @@ fn main() -> io::Result<()> {
         from_json5: cli.from_json5,
         from_toml: cli.from_toml,
         from_yaml: cli.from_yaml,
+        from_gron: cli.from_gron,
         parallelism: cli.parallelism,
         sort_keys: cli.sort_keys,
         pretty_print: cli.pretty_print,