Add value_parser so partition-table-offset accepts offset expressed in hexadecimal. (#682)

* Add value_parser so `partition-table-offset` accepts offset expressed in hexadecimal.

* Add changelog entry.

Author: jnross

Diff for: CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 ### Fixed
+- Fixed `partition-table-offset` argument to accept offsets in hexadecimal (#682)
 
 ### Changed
 

Diff for: espflash/src/cli/mod.rs

@@ -236,7 +236,7 @@ pub struct ImageArgs {
     #[arg(long, short = 'T', value_name = "FILE")]
     pub partition_table: Option<PathBuf>,
     /// Partition table offset
-    #[arg(long, value_name = "OFFSET")]
+    #[arg(long, value_name = "OFFSET", value_parser = parse_uint32)]
     pub partition_table_offset: Option<u32>,
     /// Label of target app partition
     #[arg(long, value_name = "LABEL")]
@@ -843,3 +843,22 @@ pub fn make_flash_data(
         image_args.min_chip_rev,
     )
 }
+
+mod test {
+    use crate::cli::FlashArgs;
+    use clap::Parser;
+
+    #[derive(Parser)]
+    struct TestParser {
+        #[clap(flatten)]
+        args: FlashArgs,
+    }
+
+    #[test]
+    fn test_parse_hex_partition_table_offset() {
+        let command = "command --partition-table-offset 0x8000";
+        let iter = command.split_whitespace();
+        let parser = TestParser::parse_from(iter);
+        assert_eq!(parser.args.image.partition_table_offset, Some(0x8000));
+    }
+}