init-repository: Add HTTPS support for Gerrit remotes

Introduce a new --codereview-https option to use HTTPS instead of SSH
for Gerrit URLs. Update QtIROptionsHelpers.cmake and document in
QtIRHelp.txt.

Change-Id: Iae032bdf07e323a8f63946475c692cab23deffc4
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>

cmake/QtIRGitHelpers.cmake

@@ -102,18 +102,27 @@ endfunction()
 # - ../qt/qttools-litehtml.git
 function(qt_ir_add_git_remotes repo_relative_url working_directory)
     set(gerrit_ssh_base "ssh://@USER@codereview.qt-project.org@PORT@/")
-    set(gerrit_repo_url "${gerrit_ssh_base}")
+    set(gerrit_https_base "https://@USER@codereview.qt-project.org@AUTH@/")
 
     qt_ir_get_option_value(codereview-username username)
+    qt_ir_get_option_value(codereview-https https)
+
+    if(https)
+        set(gerrit_repo_url "${gerrit_https_base}")
+    else()
+        set(gerrit_repo_url "${gerrit_ssh_base}")
+    endif()
 
     # If given a username, make a "verbose" remote.
     # Otherwise, rely on proper SSH configuration.
     if(username)
         string(REPLACE "@USER@" "${username}@" gerrit_repo_url "${gerrit_repo_url}")
         string(REPLACE "@PORT@" ":29418" gerrit_repo_url "${gerrit_repo_url}")
+        string(REPLACE "@AUTH@" "/a" gerrit_repo_url "${gerrit_repo_url}")
     else()
         string(REPLACE "@USER@" "" gerrit_repo_url "${gerrit_repo_url}")
         string(REPLACE "@PORT@" "" gerrit_repo_url "${gerrit_repo_url}")
+        string(REPLACE "@AUTH@" ""   gerrit_repo_url "${gerrit_repo_url}")
     endif()
 
     set(namespace "qt")

cmake/QtIRHelp.txt

@@ -98,6 +98,9 @@ Options:
         username and port number, and thus relies on a correct SSH
         configuration.
 
+    --codereview-https
+        Specify this option to use HTTPs instead of SSH.
+
     --alternates <path to other Qt5 repo>
         Adds alternates for each submodule to another full qt5 checkout.
         This makes this qt5 checkout very small, as it will use the object

cmake/QtIROptionsHelpers.cmake

@@ -14,6 +14,7 @@ macro(qt_ir_set_known_command_line_options)
     qt_ir_commandline_option(berlin TYPE boolean)
     qt_ir_commandline_option(branch TYPE boolean)
     qt_ir_commandline_option(codereview-username TYPE string)
+    qt_ir_commandline_option(codereview-https TYPE boolean)
     qt_ir_commandline_option(copy-objects TYPE boolean)
     qt_ir_commandline_option(fetch TYPE boolean DEFAULT_VALUE yes)
     qt_ir_commandline_option(force SHORT_NAME f TYPE boolean)