Bulk change username to email

[Kade Price]

We've imported our old mantis project. The users came along with it, but the user names are very random. I want to change all of them to the users email, so they can just come to the portal and do a password reset to get their account up and going again. 

I have script runner, and I've seen a few scripts, but I'm not having much luck with it. I have a dev server setup where I can test my scripts. I don't know Java and I'm kind of lost as to what I want to do.

The users have the mantis-import-unused-users group assigned to them so I can use that to select them. 

I want to then loop though them and change the username to their email address.

Thanks in advanced. 

[Gaston Valente]

Kade,

Do you have some code for what you need to do to start with?

Are you using internal directory or some kind of ldap?

thanks!

[Kade Price]

The users are internal. Employees use LDAP. So I can't mess with that. 

This looked promissing and a good start, but it doesn't seem to be quite compatable with my version of JIRA.

import com.atlassian.crowd.embedded.api.CrowdService
import com.atlassian.crowd.embedded.api.User
import com.atlassian.crowd.embedded.api.UserWithAttributes
import com.atlassian.crowd.embedded.impl.ImmutableUser
import com.atlassian.jira.bc.user.UserService
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.user.util.UserUtil

String result = ''

UserUtil userUtil = ComponentAccessor.userUtil
CrowdService crowdService = ComponentAccessor.crowdService
UserService userService = ComponentAccessor.getComponent(UserService.class)
User updateUser
UserWithAttributes user
UserService.UpdateUserValidationResult updateUserValidationResult

def groupNames = [
        'mantis-import-disabled-users',
        'mantis-import-unused-users'
]

userUtil.getAllUsersInGroupNamesUnsorted(groupNames).findAll{it.isActive()}.each { 
    user = crowdService.getUserWithAttributes(it.getName())
    updateUser = ImmutableUser.newUser(user).active(false).toUser()
    updateUserValidationResult = userService.validateUpdateUser(updateUser)
    if (updateUserValidationResult.isValid()) {
        userService.updateUser(updateUserValidationResult)
        result += "Deactivated ${updateUser.name}\r\n"
    } else {
        result += "Update of ${user.name} failed: ${updateUserValidationResult.getErrorCollection().getErrors().entrySet().join(',')}\r\n"
    }
}
return result