Update README with examples and documentation

[hashgood] / src / verify.rs

diff --git a/src/verify.rs b/src/verify.rs
index 6ad9ea9464a97870babac51567514250f8c15074..f5ba2a26187f0c00b5d27c4e163671ff55f48d27 100644 (file)
--- a/src/verify.rs
+++ b/src/verify.rs
@@ -2,8 +2,8 @@ use super::{
     Algorithm, CandidateHash, CandidateHashes, Hash, MatchLevel, MessageLevel, Opt, Verification,
     VerificationSource,
 };
-use clipboard::ClipboardContext;
-use clipboard::ClipboardProvider;
+#[cfg(feature = "paste")]
+use clipboard::{ClipboardContext, ClipboardProvider};
 use regex::Regex;
 use std::fs::File;
 use std::io;
@@ -17,7 +17,7 @@ use std::path::PathBuf;
 pub fn get_candidate_hashes(opt: &Opt) -> Result<Option<CandidateHashes>, String> {
     if let Some(hash_string) = &opt.hash {
         return Ok(Some(get_by_parameter(hash_string)?));
-    } else if opt.paste {
+    } else if opt.get_paste() {
         return Ok(Some(get_from_clipboard()?));
     } else if let Some(hash_file) = &opt.hash_file {
         return Ok(Some(get_from_file(hash_file)?));
@@ -43,28 +43,33 @@ fn get_by_parameter(param: &str) -> Result<CandidateHashes, String> {
 
 /// Generate a candidate hash from the system clipboard, or throw an error.
 fn get_from_clipboard() -> Result<CandidateHashes, String> {
-    let mut ctx: ClipboardContext = match ClipboardProvider::new() {
-        Ok(ctx) => ctx,
-        Err(e) => return Err(format!("Error getting system clipboard: {}", e)),
-    };
-
-    let possible_hash = match ctx.get_contents() {
-        Ok(value) => value,
-        Err(e) => format!("Error reading from clipboard: {}", e),
-    };
-
-    let bytes = hex::decode(&possible_hash)
-        .map_err(|_| "Clipboard contains invalid or truncated hex".to_owned())?;
-    let alg = Algorithm::from_len(bytes.len())?;
-    let candidate = CandidateHash {
-        filename: None,
-        bytes,
-    };
-    Ok(CandidateHashes {
-        alg,
-        hashes: vec![candidate],
-        source: VerificationSource::Clipboard,
-    })
+    #[cfg(feature = "paste")] {
+        let mut ctx: ClipboardContext = match ClipboardProvider::new() {
+            Ok(ctx) => ctx,
+            Err(e) => return Err(format!("Error getting system clipboard: {}", e)),
+        };
+    
+        let possible_hash = match ctx.get_contents() {
+            Ok(value) => value,
+            Err(e) => format!("Error reading from clipboard: {}", e),
+        };
+    
+        let bytes = hex::decode(&possible_hash)
+            .map_err(|_| "Clipboard contains invalid or truncated hex".to_owned())?;
+        let alg = Algorithm::from_len(bytes.len())?;
+        let candidate = CandidateHash {
+            filename: None,
+            bytes,
+        };
+        return Ok(CandidateHashes {
+            alg,
+            hashes: vec![candidate],
+            source: VerificationSource::Clipboard,
+        });
+    }
+    #[cfg(not(feature = "paste"))] {
+        return Err("Paste not implemented".to_owned());
+    }
 }
 
 /// Generate a candidate hash from the digests file specified (could be "-" for STDIN), or throw an error.