inital commit, which is clearly not initial

Signed-off-by: Uncle Stretch <uncle.stretch@ghostchain.io>

utils/chain-spec-builder/bin/main.rs

@@ -0,0 +1,103 @@
+use chain_spec_builder::{
+    generate_chain_spec_for_runtime, ChainSpecBuilder, ChainSpecBuilderCmd,
+    ConvertToRawCmd, DisplayPresetCmd, ListPresetsCmd, UpdateCodeCmd,
+    VerifyCmd,
+};
+use clap::Parser;
+use sc_chain_spec::{
+    update_code_in_json_chain_spec, GenericChainSpec, 
+    GenesisConfigBuilderRuntimeCaller,
+};
+use ghost_staging_chain_spec_builder as chain_spec_builder;
+use std::fs;
+
+fn main() {
+    match inner_main() {
+        Err(e) => eprintln!("{}", format!("{e}")),
+        _ => {},
+    }
+}
+
+fn inner_main() -> Result<(), String> {
+    sp_tracing::try_init_simple();
+
+    let builder = ChainSpecBuilder::parse();
+    let chain_spec_path = builder.chain_spec_path.to_path_buf();
+
+    match builder.command {
+        ChainSpecBuilderCmd::Create(cmd) => {
+            let chain_spec_json = generate_chain_spec_for_runtime(&cmd)?;
+            fs::write(chain_spec_path, chain_spec_json).map_err(|err| err.to_string())?;
+        },
+        ChainSpecBuilderCmd::UpdateCode(UpdateCodeCmd {
+            ref input_chain_spec,
+            ref runtime_wasm_path,
+        }) => {
+            let chain_spec = GenericChainSpec::<()>::from_json_file(input_chain_spec.clone())?;
+
+            let mut chain_spec_json = serde_json::from_str::<serde_json::Value>(
+                &chain_spec.as_json(false)?
+            ).map_err(|e| format!("Conversion to json failed: {e}"))?;
+            update_code_in_json_chain_spec(
+                &mut chain_spec_json,
+                &fs::read(runtime_wasm_path.as_path())
+                    .map_err(|e| format!("Wasm blob file could not be read: {e}"))?[..],
+            );
+
+            let chain_spec_json = serde_json::to_string_pretty(&chain_spec_json)
+                .map_err(|e| format!("to pretty failed: {e}"))?;
+            fs::write(chain_spec_path, chain_spec_json).map_err(|err| err.to_string())?;
+        },
+        ChainSpecBuilderCmd::ConvertToRaw(ConvertToRawCmd { ref input_chain_spec }) => {
+            let chain_spec = GenericChainSpec::<()>::from_json_file(input_chain_spec.clone())?;
+
+            let chain_spec_json = serde_json::from_str::<serde_json::Value>(
+                &chain_spec.as_json(false)?
+            ).map_err(|e| format!("Conversion to json failed: {e}"))?;
+
+            let chain_spec_json = serde_json::to_string_pretty(&chain_spec_json)
+                .map_err(|e| format!("to pretty failed: {e}"))?;
+            fs::write(chain_spec_path, chain_spec_json).map_err(|err| err.to_string())?;
+        },
+        ChainSpecBuilderCmd::Verify(VerifyCmd { ref input_chain_spec }) => {
+            let chain_spec = GenericChainSpec::<()>::from_json_file(input_chain_spec.clone())?;
+            let _ = serde_json::from_str::<serde_json::Value>(&chain_spec.as_json(true)?)
+                .map_err(|e| format!("Conversion to json failed: {e}"))?;
+        },
+        ChainSpecBuilderCmd::ListPresets(ListPresetsCmd { runtime_wasm_path }) => {
+            let code = fs::read(runtime_wasm_path.as_path())
+                .map_err(|e| format!("wasm blob shall be readable {e}"))?;
+            let caller: GenesisConfigBuilderRuntimeCaller = 
+                GenesisConfigBuilderRuntimeCaller::new(&code[..]);
+            let presets = caller
+                .preset_names()
+                .map_err(|e| format!("getting default config from runtime should work: {e}"))?;
+            let presets: Vec<String> = presets
+                .into_iter()
+                .map(|preset| {
+                    String::from(
+                        TryInto::<&str>::try_into(&preset)
+                        .unwrap_or_else(|_| "cannot display preset id")
+                        .to_string(),
+                    )
+                })
+                .collect();
+            println!("{}", serde_json::json!({"presets": presets}).to_string());
+        },
+        ChainSpecBuilderCmd::DisplayPreset(DisplayPresetCmd { 
+            runtime_wasm_path, 
+            preset_name,
+        }) => {
+            let code = fs::read(runtime_wasm_path.as_path())
+                .map_err(|e| format!("wasm blob shall be readable {e}"))?;
+            let caller: GenesisConfigBuilderRuntimeCaller = 
+                GenesisConfigBuilderRuntimeCaller::new(&code[..]);
+            let presets = caller
+                .get_named_preset(preset_name.as_ref())
+                .map_err(|e| format!("getting default config from runtime should work: {e}"))?;
+            println!("{presets}");
+        },
+    };
+
+    Ok(())
+}