Add http1.0 option in config_file

Author: fabricereix

docs/spec/options/hurl/http10.option

@@ -3,6 +3,7 @@ long: http1.0
 short: 0
 help: Tell Hurl to use HTTP version 1.0
 help_heading: HTTP options
+config_file: true
 env_var: HURL_HTTP10
 ---
 Tells Hurl to use HTTP version 1.0 instead of using its internally preferred HTTP version.

integration/hurl/tests_ok/http_version/config_10/hurl/config

@@ -0,0 +1 @@
+--http1.0

integration/hurl/tests_ok/http_version/http_version_10_config_file.ps1

@@ -0,0 +1,6 @@
+Set-StrictMode -Version latest
+$ErrorActionPreference = 'Stop'
+
+$env:XDG_CONFIG_HOME = "$PSScriptRoot/config_10"
+
+hurl tests_ok/http_version/http_version_10.hurl

integration/hurl/tests_ok/http_version/http_version_10_config_file.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+set -Eeuo pipefail
+
+XDG_CONFIG_HOME=$(dirname "$0")/config_10
+export XDG_CONFIG_HOME
+
+hurl tests_ok/http_version/http_version_10.hurl

packages/hurl/src/cli/options/config_file/mod.rs

@@ -173,6 +173,11 @@ fn parse_option(reader: &mut Reader, options: &mut CliOptions) -> Result<(), Con
             options.insecure = true;
             Ok(())
         }
+        "http1.0" => {
+            expect_no_value(reader)?;
+            options.http_version = Some(HttpVersion::V10);
+            Ok(())
+        }
         "http1.1" => {
             expect_no_value(reader)?;
             options.http_version = Some(HttpVersion::V11);
@@ -394,6 +399,16 @@ mod tests {
         assert_eq!(reader.cursor().pos, Pos::new(2, 1));
     }
 
+    #[test]
+    fn test_parse_option_http10() {
+        let mut reader = Reader::new("--http1.0\n");
+        let mut options = CliOptions::default();
+        assert!(options.http_version.is_none());
+        assert!(parse_option(&mut reader, &mut options).is_ok());
+        assert_eq!(options.http_version, Some(HttpVersion::V10));
+        assert_eq!(reader.cursor().pos, Pos::new(2, 1));
+    }
+
     #[test]
     fn test_parse_option_follow_location() {
         let mut reader = Reader::new("--location\n");