I stumbled
on
https://stackoverflow.com/questions/55423036/groovy-string-interpolation-when-string-is-defined-before-the-interpolated-varia
and I found this snippet worked just fine after I approved the signature in
jenkins
import groovy.text.SimpleTemplateEngine
node("docker") {
stage("eval") {
def pathname = "/srv/\${host}/foo/bar"
def templateMessage = new
SimpleTemplateEngine().createTemplate(pathname)
def result = { host -> templateMessage.make(host: host)}
def HOST = "myhost"
println(result(HOST))
}
}
On Friday, October 23, 2020 at 2:28:57 PM UTC-4 cw wrote:
> Thank you, it seems that you're right, it's not completing the expansion,
> but in the research I did, I wasn't able to make anything else work (one
> suggestion had to do with double quotes instead of single quotes, but
> wasn't able to get that to work either). I don't know if it's related to
> it being a parameter that was specified at build this is not allowing it to
> expand?
>
> I looked at the link you sent but didn't really understand "using a
> closure" as the answer states. I tried to imitate it using this code below
> but it still didn't expand:
>
> def fp = { filepath -> "${filepath}" }
> println fp(filepath)
>
> On Friday, October 23, 2020 at 12:13:07 PM UTC-4 [email protected]
> wrote:
>
>> I think you need to do an "eval" or the equivalent to filepath in order
>> to expand the inner variable. I believe the ssh command is executing "ls
>> /srv/jboss/server/${MAL}/log/" but MAL on the far end is empty. So you need
>> to complete the expansion before calling ssh.
>>
>> This might get you on the right track --
>> https://stackoverflow.com/questions/28997518/groovy-string-interpolation-with-value-only-known-at-runtime
>>
>> On Thursday, October 22, 2020 at 12:14:06 PM UTC-4 cw wrote:
>>
>>> I'm trying to set up a string parameter which will reference a variable
>>> which will be created within the pipeline. For instance, when building a
>>> parameterized build, the user enters a file path in this
>>> format: /srv/jboss/server/${MAL}/log/
>>>
>>> Where MAL is assigned via the pipeline and then I try to ls -ltr the
>>> fully qualified path after MAL has been expanded. However I'm not getting
>>> it to expand; wondering what I'm doing wrong.
>>>
>>> node {
>>> MALarray = params.multi.split(',')
>>>
>>> MALarray.each { MAL ->
>>>
>>> if (MAL in ['care''] ) {
>>> servers = ['xx.xx.xx.xx','xx.xx.xx.xx']
>>> }
>>>
>>> def soc_remote = [:]
>>> soc_remote.name = "${MAL} SOC"
>>> soc_remote.allowAnyHosts = true
>>>
>>> withCredentials([usernamePassword(credentialsId: 'Credentials',
>>> usernameVariable: 'USER_ID', passwordVariable: 'USER_PASSWORD')]) {
>>> soc_remote.user = USER_ID
>>> soc_remote.password = USER_PASSWORD
>>> servers.each { server ->
>>> soc_remote.host = server
>>> stage("Run script on ${server}") {
>>> try {
>>> echo("MAL is ${MAL}")
>>> sshCommand remote: soc_remote, command: "ls -ltr ${filepath}"
>>> } catch (err) {
>>> echo "something failed"
>>> echo "${err}"
>>> }
>>> }
>>> }
>>> }
>>> }
>>> }
>>>
>>> Console output:
>>> *11:59:34* MAL is care
>>> *11:59:34* [Pipeline] sshCommand
>>> <https://abaapvsc01amcba.tdbfg.com:9443/job/CraigTest/job/variable%20inside%20variable/2/console#>
>>>
>>> *11:59:34* Executing command on care SOC[xx.xx.xx.xx]: ls -ltr
>>> /srv/jboss/server/${MAL}/log/ sudo: false
>>> *11:59:35* ls: cannot access /srv/jboss/server//log/: No such file or
>>> directory
>>> *11:59:35* Failed command care SOC#1002 with status 2: ls -ltr
>>> /srv/jboss/server/${MAL}/log/
>>>
>>>
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