feat(CLI): Add two new output types for contract inspect (stellar#829)

* feat(CLI): add output type to contract inspect

Now it can also output base64 xdr of the spec and an array of entries each encoded as base64  xdr.

* fix: move array to spec definition

---------

Co-authored-by: Tsachi Herman <24438559+tsachiherman@users.noreply.github.com>

cmd/soroban-cli/src/commands/contract/inspect.rs

@@ -1,13 +1,20 @@
 use clap::{command, Parser};
-use std::fmt::Debug;
+use soroban_env_host::xdr;
+use std::{fmt::Debug, path::PathBuf};
+use tracing::debug;
 
+use super::SpecOutput;
 use crate::{commands::config::locator, wasm};
 
 #[derive(Parser, Debug, Clone)]
 #[group(skip)]
 pub struct Cmd {
     #[command(flatten)]
     wasm: wasm::Args,
+    /// Output just XDR in base64
+    #[arg(long, default_value = "docs")]
+    output: SpecOutput,
+
     #[clap(flatten)]
     locator: locator::Args,
 }
@@ -16,12 +23,27 @@ pub struct Cmd {
 pub enum Error {
     #[error(transparent)]
     Wasm(#[from] wasm::Error),
+    #[error("missing spec for {0:?}")]
+    MissingSpec(PathBuf),
+    #[error(transparent)]
+    Xdr(#[from] xdr::Error),
+    #[error(transparent)]
+    Spec(#[from] crate::utils::contract_spec::Error),
 }
 
 impl Cmd {
     pub fn run(&self) -> Result<(), Error> {
-        println!("File: {}", self.wasm.wasm.to_string_lossy());
-        println!("{}", self.wasm.parse()?);
+        let wasm = self.wasm.parse()?;
+        debug!("File: {}", self.wasm.wasm.to_string_lossy());
+        let output = match self.output {
+            SpecOutput::XdrBase64 => wasm
+                .spec_base64
+                .clone()
+                .ok_or_else(|| Error::MissingSpec(self.wasm.wasm.clone()))?,
+            SpecOutput::XdrBase64Array => wasm.spec_as_json_array()?,
+            SpecOutput::Docs => wasm.to_string(),
+        };
+        println!("{output}");
         Ok(())
     }
 }

cmd/soroban-cli/src/commands/contract/mod.rs

@@ -128,3 +128,13 @@ impl From<Durability> for soroban_env_host::xdr::ContractDataDurability {
         }
     }
 }
+
+#[derive(Clone, Copy, Debug, Eq, Hash, PartialEq, clap::ValueEnum)]
+pub enum SpecOutput {
+    /// XDR of array of contract spec entries
+    XdrBase64,
+    /// Array of xdr of contract spec entries
+    XdrBase64Array,
+    /// Pretty print of contract spec entries
+    Docs,
+}

cmd/soroban-cli/src/utils/contract_spec.rs

@@ -6,7 +6,7 @@ use std::{
 use soroban_env_host::xdr::{
     self, DepthLimitedRead, ReadXdr, ScEnvMetaEntry, ScMetaEntry, ScMetaV0, ScSpecEntry,
     ScSpecFunctionV0, ScSpecUdtEnumV0, ScSpecUdtErrorEnumV0, ScSpecUdtStructV0, ScSpecUdtUnionV0,
-    StringM,
+    StringM, WriteXdr,
 };
 
 pub struct ContractSpec {
@@ -97,6 +97,16 @@ impl ContractSpec {
             spec,
         })
     }
+
+    pub fn spec_as_json_array(&self) -> Result<String, Error> {
+        let spec = self
+            .spec
+            .iter()
+            .map(|e| Ok(format!("\"{}\"", e.to_xdr_base64()?)))
+            .collect::<Result<Vec<_>, Error>>()?
+            .join(",\n");
+        Ok(format!("[{spec}]"))
+    }
 }
 
 impl Display for ContractSpec {

docs/soroban-cli-full-docs.md

@@ -291,6 +291,18 @@ Inspect a WASM file listing contract functions, meta, etc
 ###### **Options:**
 
 * `--wasm <WASM>` — Path to wasm binary
+* `--output <OUTPUT>` — Output just XDR in base64
+
+  Default value: `docs`
+
+  Possible values:
+  - `xdr-base64`:
+    XDR of array of contract spec entries
+  - `xdr-base64-array`:
+    Array of xdr of contract spec entries
+  - `docs`:
+    Pretty print of contract spec entries
+
 * `--global` — Use global config
 * `--config-dir <CONFIG_DIR>`