Multiple shell commands executed in one process in groovy script - shell

Question

I want to fetch a npm package and untar it in a groovy script like so:
def cmd = "cd .composerpages/umanagement && npm pack #mag-umanagement/umanagement-pages-v2810#^28.10.4-SNAPSHOT && tar xvzf *.tgz"
cmd.execute()
Unfortunately, it executes only the first term (cd .composerpages/umanagement).
Is there a way to have multiple commands executed in one shell process?

Answer 1

If you need all the "shell-isms" there, then just let the shell handle it (with -c). E.g.:
def cmd = "cd .composerpages/umanagement && npm pack #mag-umanagement/umanagement-pages-v2810#^28.10.4-SNAPSHOT && tar xvzf *.tgz"
["/bin/sh", "-c", cmd].execute()

Answer 2

I think you need to execute all the options and not && them.
This is how you should approach it:
def cmd = 'cd .composerpages/umanagement'.execute() | 'npm pack #mag-umanagement/umanagement-pages-v2810#^28.10.4-SNAPSHOT'.execute() | 'tar xvzf *.tgz'.execute()
cmd.waitFor()
println cmd.text

Answer 3

In this case you can try tokenizing your pipeline of commands to a list of commands and execute them in sequence as long as they return exit code 0 (&& stops command pipeline when the command returns nonzero exit code). Consider following example:
def cmd = 'echo test && echo foo && exit 1 && echo 123'
cmd.tokenize('&&').every {
try {
def p = it.execute()
def output = p.text.trim()
p.waitFor()
println output
return p.exitValue() == 0
} catch (e) {
return false
}
}
Here we have a pipeline of 4 commands:
echo test
echo foo
exit 1
echo 123
Chaining these commands with AND operator (&&) expects stopping the pipeline after exit 1.
Groovy's Iterable.every(Closure closure) method executes as long as returned predicate is true. In our case we continue iterating over the list of commands as long as exit code is 0.
Running above example produces following output to console:
test
foo