feat: unify digest plugin types and always compute all hashes

Co-authored-by: aider (openai/andrew/openrouter/deepseek/deepseek-chat-v3.1) <aider@aider.chat>

src/meta_plugin/digest.rs

@@ -2,53 +2,27 @@ use sha2::{Digest, Sha256, Sha512};
 use md5::Md5;
 use crate::meta_plugin::MetaPlugin;
 
-#[derive(Debug, Clone)]
-enum HashMethod {
-    Md5,
-    Sha256,
-    Sha512,
-}
-
-impl Default for HashMethod {
-    fn default() -> Self {
-        HashMethod::Sha256
-    }
-}
-
-impl HashMethod {
-    fn from_str(s: &str) -> Option<Self> {
-        match s {
-            "md5" => Some(HashMethod::Md5),
-            "sha256" => Some(HashMethod::Sha256),
-            "sha512" => Some(HashMethod::Sha512),
-            _ => None,
-        }
-    }
-}
-
 #[derive(Debug, Clone)]
 pub struct DigestMetaPlugin {
-    md5_hasher: Option<Md5>,
+    md5_hasher: Md5,
-    sha256_hasher: Option<Sha256>,
+    sha256_hasher: Sha256,
-    sha512_hasher: Option<Sha512>,
+    sha512_hasher: Sha512,
     is_finalized: bool,
     meta_name: String,
     outputs: std::collections::HashMap<String, serde_yaml::Value>,
     options: std::collections::HashMap<String, serde_yaml::Value>,
-    methods: Vec<HashMethod>,
 }
 
 impl Default for DigestMetaPlugin {
     fn default() -> Self {
         Self {
-            md5_hasher: None,
+            md5_hasher: Md5::new(),
-            sha256_hasher: None,
+            sha256_hasher: Sha256::new(),
-            sha512_hasher: None,
+            sha512_hasher: Sha512::new(),
             is_finalized: false,
             meta_name: "digest".to_string(),
             outputs: std::collections::HashMap::new(),
             options: std::collections::HashMap::new(),
-            methods: vec![HashMethod::Sha256],
         }
     }
 }
@@ -84,24 +58,6 @@ impl DigestMetaPlugin {
             }
         }
         
-        // Configure methods based on options
-        if let Some(method_value) = plugin.options.get("method") {
-            if let Some(method_str) = method_value.as_str() {
-                if let Some(method) = HashMethod::from_str(method_str) {
-                    plugin.methods = vec![method];
-                }
-            }
-        }
-        
-        // Initialize hashers based on selected methods
-        for method in &plugin.methods {
-            match method {
-                HashMethod::Md5 => plugin.md5_hasher = Some(Md5::new()),
-                HashMethod::Sha256 => plugin.sha256_hasher = Some(Sha256::new()),
-                HashMethod::Sha512 => plugin.sha512_hasher = Some(Sha512::new()),
-            }
-        }
-        
         plugin
     }
     
@@ -136,50 +92,36 @@ impl MetaPlugin for DigestMetaPlugin {
         
         let mut metadata = Vec::new();
 
-        // Process each method
+        // Always compute all three hashes
-        for method in &self.methods {
+        let md5_result = self.md5_hasher.clone().finalize();
-            match method {
+        let md5_hex = format!("{:x}", md5_result);
-                HashMethod::Md5 => {
-                    if let Some(hasher) = self.md5_hasher.take() {
-                        let hash_result = hasher.finalize();
-                        let hex_string = format!("{:x}", hash_result);
         if let Some(meta_data) = crate::meta_plugin::process_metadata_outputs(
             "digest_md5", 
-                            hex_string, 
+            md5_hex, 
             &self.outputs
         ) {
             metadata.push(meta_data);
         }
-                    }
+
-                }
+        let sha256_result = self.sha256_hasher.clone().finalize_reset();
-                HashMethod::Sha256 => {
+        let sha256_hex = format!("{:x}", sha256_result);
-                    if let Some(hasher) = self.sha256_hasher.take() {
-                        let hash_result = hasher.finalize_reset();
-                        let hex_string = format!("{:x}", hash_result);
         if let Some(meta_data) = crate::meta_plugin::process_metadata_outputs(
             "digest_sha256", 
-                            hex_string, 
+            sha256_hex, 
             &self.outputs
         ) {
             metadata.push(meta_data);
         }
-                    }
+
-                }
+        let sha512_result = self.sha512_hasher.clone().finalize_reset();
-                HashMethod::Sha512 => {
+        let sha512_hex = format!("{:x}", sha512_result);
-                    if let Some(hasher) = self.sha512_hasher.take() {
-                        let hash_result = hasher.finalize_reset();
-                        let hex_string = format!("{:x}", hash_result);
         if let Some(meta_data) = crate::meta_plugin::process_metadata_outputs(
             "digest_sha512", 
-                            hex_string, 
+            sha512_hex, 
             &self.outputs
         ) {
             metadata.push(meta_data);
         }
-                    }
-                }
-            }
-        }
         
         self.is_finalized = true;
         crate::meta_plugin::MetaPluginResponse {
@@ -196,25 +138,10 @@ impl MetaPlugin for DigestMetaPlugin {
             };
         }
         
-        for method in &self.methods {
+        // Update all hashers
-            match method {
+        self.md5_hasher.update(data);
-                HashMethod::Md5 => {
+        self.sha256_hasher.update(data);
-                    if let Some(hasher) = &mut self.md5_hasher {
+        self.sha512_hasher.update(data);
-                        hasher.update(data);
-                    }
-                }
-                HashMethod::Sha256 => {
-                    if let Some(hasher) = &mut self.sha256_hasher {
-                        hasher.update(data);
-                    }
-                }
-                HashMethod::Sha512 => {
-                    if let Some(hasher) = &mut self.sha512_hasher {
-                        hasher.update(data);
-                    }
-                }
-            }
-        }
         
         crate::meta_plugin::MetaPluginResponse {
             metadata: Vec::new(),

src/meta_plugin/mod.rs

@@ -133,8 +133,7 @@ pub enum MetaPluginType {
     Shell,
     ShellPid,
     KeepPid,
-    DigestSha256,
+    Digest,
-    DigestMd5,
     ReadTime,
     ReadRate,
     Hostname,
@@ -296,8 +295,7 @@ pub fn get_meta_plugin(meta_plugin_type: MetaPluginType) -> Box<dyn MetaPlugin>
         MetaPluginType::Shell => Box::new(ShellMetaPlugin::new_simple()),
         MetaPluginType::ShellPid => Box::new(ShellPidMetaPlugin::new_simple()),
         MetaPluginType::KeepPid => Box::new(KeepPidMetaPlugin::new_simple()),
-        MetaPluginType::DigestSha256 => Box::new(DigestMetaPlugin::new_simple()),
+        MetaPluginType::Digest => Box::new(DigestMetaPlugin::new_simple()),
-        MetaPluginType::DigestMd5 => Box::new(MetaPluginProgram::new_simple("md5sum", vec![], "digest_md5".to_string(), true)),
         MetaPluginType::ReadTime => Box::new(ReadTimeMetaPlugin::new_simple()),
         MetaPluginType::ReadRate => Box::new(ReadRateMetaPlugin::new_simple()),
         MetaPluginType::Hostname => Box::new(HostnameMetaPlugin::new_simple()),