qemu_guest_agent: Add logic to get specific rpm from url

The Qemu rebase test requires the latest qemu-guest-agent package,
but the guest would not install the latest version of the series
of Qemu at the beginning. sometimes will be delayed for a while.
Plus I have to run qga test frequently in the future, so it's
necessary to add a piece of  logic to install the specific
package of qga from url.

Signed-off-by: Dehan Meng <[email protected]>

qemu/tests/cfg/qemu_guest_agent.cfg

@@ -27,6 +27,8 @@
     qga_rpm_path = "/qemu-guest-agent"
     # Please update your file share web server url before test
     download_root_url = <your_server_url>
+    gagentrpm_tem_path = "/var/tmp/"
+    gagentrpm_guest_dir = "/var/"
     Windows:
         check_vioser = yes
         gagent_src_type = url

qemu/tests/qemu_guest_agent.py

@@ -362,11 +362,52 @@ def setup(self, test, params, env):
                     test.fail("Failed to get qga, details: %s" % output)
                 else:
                     self.qga_pkg_path = params["qga_rpm_path"]
-            if self._check_ga_pkg(session, params.get("gagent_pkg_check_cmd")):
-                LOG_JOB.info("qemu-ga is already installed.")
+            if self.params["gagent_src_type"] != "url":
+                if self._check_ga_pkg(session, params.get("gagent_pkg_check_cmd")):
+                    LOG_JOB.info("qemu-ga is already installed.")
+                else:
+                    LOG_JOB.info("qemu-ga is not installed or need to update.")
+                    self.gagent_install(session, self.vm)
             else:
-                LOG_JOB.info("qemu-ga is not installed or need to update.")
-                self.gagent_install(session, self.vm)
+                error_context.context(
+                    "Download qemu-guest-agent package from "
+                    "website and copy it to guest",
+                    logging.info,
+                )
+                gagentrpm_download_url = self.params["gagent_download_url"]
+                gagentrpm_guest_dir = self.params["gagentrpm_guest_dir"]
+                gagentrpm_tem_path = self.params["gagentrpm_tem_path"]
+                rpm_name = re.search(r"([^/]+\.rpm)$", gagentrpm_download_url).group(1)
+                process.system(
+                    f"wget -qP {gagentrpm_tem_path} {gagentrpm_download_url}"
+                )
+                s, gagentrpm_tem_path = process.getstatusoutput(
+                    f"ls {gagentrpm_tem_path}/{rpm_name}"
+                )
+                if s != 0:
+                    self.test.error(
+                        "qemu-guest-agent rpm is not exist, "
+                        "maybe it is not successfully "
+                        "downloaded, please take a look "
+                    )
+                else:
+                    self.vm.copy_files_to(gagentrpm_tem_path, gagentrpm_guest_dir)
+                    s = session.cmd_status(
+                        f"rpm -Uvh --nodeps --force {gagentrpm_guest_dir}/{rpm_name}"
+                    )
+                    if s != 0:
+                        self.test.error(
+                            "qemu-guest-agent rpm couldn't be installed "
+                            "successfully, please take a look"
+                        )
+                    else:
+                        restart_cmd = self.params["gagent_restart_cmd"]
+                        s_rst, o_rst = session.cmd_status_output(restart_cmd)
+                        if s_rst != 0:
+                            self.test.fail(
+                                "qemu-guest-agent service restart failed,"
+                                " the detailed info:\n%s." % o_rst
+                            )
 
             error_context.context("Check qga service running status", LOG_JOB.info)
             if self._check_ga_service(session, params.get("gagent_status_cmd")):