[KYUUBI #6506] kyuubi-beeline supports --conf

# 🔍 Description
## Issue References 🔗

This pull request fixes #6506

## Describe Your Solution 🔧

Set the alias `--conf` to `--hiveconf`.

## Types of changes 🔖

- [ ] Bugfix (non-breaking change which fixes an issue)
- [x] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing functionality to change)

## Test Plan 🧪

#### Behavior Without This Pull Request ⚰️
```
# use --hiveconf or --hivevar to set some configurations
kyuubi-beeline -u 'jdbc:kyuubi://kyuubi:10009/' \
    --hiveconf kyuubi.operation.result.format=arrow \
    --hiveconf kyuubi.operation.incremental.collect=true-f \
    --hivevar app_name=xxx \
    xxx.sql
```

#### Behavior With This Pull Request 🎉
```
# use --conf to set some configurations
kyuubi-beeline -u 'jdbc:kyuubi://kyuubi:10009/' \
    --conf kyuubi.operation.result.format=arrow \
    --conf kyuubi.operation.incremental.collect=true-f \
    --conf app_name=xxx \
    xxx.sql
```

#### Related Unit Tests

---

# Checklist 📝

- [x] This patch was not authored or co-authored using [Generative Tooling](https://www.apache.org/legal/generative-tooling.html)

**Be nice. Be informative.**

Closes #6511 from BruceWong96/support-beeline-conf.

Closes #6506

7a81455d8 [Bruce Wong] fix code style.
8d1fec242 [Bruce Wong] delete some spaces.
d64505dd7 [Bruce Wong] [FEATURE] kyuubi-beeline supports --conf.

Authored-by: Bruce Wong <603334301@qq.com>
Signed-off-by: Cheng Pan <chengpan@apache.org>

docs/client/cli/kyuubi_beeline.md

@@ -49,6 +49,7 @@ Options:
   -f <exec file>                  Script file that should be executed.
   -w, --password-file <file>      The password file to read password from.
   --hiveconf property=value       Use value for given property.
+  --conf property=value           Alias of --hiveconf.
   --hivevar name=value            Hive variable name and value.
                                   This is Hive specific settings in which variables
                                   can be set at session level and referenced in Hive

kyuubi-hive-beeline/src/main/java/org/apache/hive/beeline/BeeLine.java

@@ -159,6 +159,7 @@ public class BeeLine implements Closeable {
 
   private static final String HIVE_VAR_PREFIX = "--hivevar";
   private static final String HIVE_CONF_PREFIX = "--hiveconf";
+  private static final String CONF_PREFIX = "--conf";
   private static final String PROP_FILE_PREFIX = "--property-file";
   static final String PASSWD_MASK = "[passwd stripped]";
 
@@ -377,6 +378,15 @@ public class BeeLine implements Closeable {
             .withDescription("Use value for given property")
             .create());
 
+    // conf option --conf
+    options.addOption(
+        OptionBuilder.withValueSeparator()
+            .hasArgs(2)
+            .withArgName("property=value")
+            .withLongOpt("conf")
+            .withDescription("Alias of --hiveconf")
+            .create());
+
     // --property-file <file>
     options.addOption(
         OptionBuilder.hasArg()
@@ -671,7 +681,8 @@ public class BeeLine implements Closeable {
     private boolean isBeeLineOpt(String arg) {
       return arg.startsWith("--")
           && !(HIVE_VAR_PREFIX.equals(arg)
-              || (HIVE_CONF_PREFIX.equals(arg))
+              || HIVE_CONF_PREFIX.equals(arg)
+              || CONF_PREFIX.equals(arg)
               || "--help".equals(arg)
               || PROP_FILE_PREFIX.equals(arg));
     }
@@ -751,6 +762,11 @@ public class BeeLine implements Closeable {
       setHiveConfVar(key, hiveConfs.getProperty(key));
     }
 
+    Properties confs = cl.getOptionProperties("conf");
+    for (String key : confs.stringPropertyNames()) {
+      setHiveConfVar(key, confs.getProperty(key));
+    }
+
     driver = cl.getOptionValue("d");
     auth = cl.getOptionValue("a");
     user = cl.getOptionValue("n");

kyuubi-hive-beeline/src/main/resources/BeeLine.properties

@@ -169,6 +169,7 @@ Options:\n\
 \  -f <exec file>                  Script file that should be executed.\n\
 \  -w, --password-file <file>      The password file to read password from.\n\
 \  --hiveconf property=value       Use value for given property.\n\
+\  --conf property=value           Alias of --hiveconf. \n\
 \  --hivevar name=value            Hive variable name and value.\n\
 \                                  This is Hive specific settings in which variables\n\
 \                                  can be set at session level and referenced in Hive\n\

kyuubi-hive-beeline/src/test/java/org/apache/hive/beeline/TestBeelineArgParsing.java

@@ -210,7 +210,7 @@ public class TestBeelineArgParsing {
     Assert.assertTrue(bl.queries.contains("select2"));
   }
 
-  /** Test setting hive conf and hive vars with --hiveconf and --hivevar */
+  /** Test setting hive conf and hive vars with --hiveconf, --hivevar and --conf */
   @Test
   public void testHiveConfAndVars() throws Exception {
     TestBeeline bl = new TestBeeline();
@@ -231,7 +231,11 @@ public class TestBeelineArgParsing {
           "--hivevar",
           "c=cvalue",
           "--hivevar",
-          "d=dvalue"
+          "d=dvalue",
+          "--conf",
+          "e=evalue",
+          "--conf",
+          "f=fvalue"
         };
     Assert.assertEquals(0, bl.initArgs(args));
     Assert.assertTrue(bl.connectArgs.equals("url name password driver"));
@@ -239,6 +243,8 @@ public class TestBeelineArgParsing {
     Assert.assertTrue(bl.getOpts().getHiveConfVariables().get("b").equals("bvalue"));
     Assert.assertTrue(bl.getOpts().getHiveVariables().get("c").equals("cvalue"));
     Assert.assertTrue(bl.getOpts().getHiveVariables().get("d").equals("dvalue"));
+    Assert.assertTrue(bl.getOpts().getHiveConfVariables().get("e").equals("evalue"));
+    Assert.assertTrue(bl.getOpts().getHiveConfVariables().get("f").equals("fvalue"));
   }
 
   @Test