Pull Request for Issue #43620 and Issue #43622

Summary of Changes

• fixes issue #43620 - if no 'rm' command is available on Windows
• fixes issue #43622 - if cmsPath is set
• custom task 'deleteFolder' starts relative with cmsPath, can also delete a file and ignores if the file does not exist -> exactly what we need
• once PR is merged i will create the next PR to rename 'deleteFolder' as 'deleteRelativePath' and also 'writeFile' as 'writeRelativeFile' to better represent the functions

Testing Instructions

tested was #43620 with branch dev-4.4 on macOS 14.5 Sonoma, Windows 11 Pro and Ubuntu 24.04 LTS Noble Numbat

• for Windows: ensured no 'rm' binary is installed (with Laragon simple moved away)
• run two times
  • npx cypress run --spec tests/System/integration/install/Installation.cy.js
  • 2nd time it fails with
    AssertionError: Timed out retrying after 4000ms: Expected to find element: #jform_language, but never found it.
    at Context.installJoomla (webpack://joomla/./node_modules/joomla-cypress/src/joomla.js:10:0)
• implement PR
• run installation step twice without errors
• run complete test suite without errors

tested was #43622 with branch dev-4.4 on macOS 14.5 Sonoma, Windows 11 Pro and Ubuntu 24.04 LTS Noble Numbat

• set cmsPath: 'my_fs_path' or '/laragon/www/joomla-cms.old' (and baseUrl if needed)
• run two times
  • npx cypress run --spec tests/System/integration/install/Installation.cy.js
  • 2nd time it fails with
    AssertionError: Timed out retrying after 4000ms: Expected to find element: #jform_language, but never found it.
    at Context.installJoomla (webpack://joomla/./node_modules/joomla-cypress/src/joomla.js:10:0)
• implement PR
• run installation step twice without errors
• run complete test suite without errors

tested with branches dev-4.4, dev-5.1, dev-5.2 and dev-6.0 on docker based installation

• merged PR
• run installation step twice without errors
• run complete test suite without errors

Actual result BEFORE applying this Pull Request

• starting with second run of System Tests installation step:
  • if fails on Windows if no 'rm' binary exists
  • if fails if 'cmsPath' is set != "."

Expected result AFTER applying this Pull Request

• second and all following runs of System Tests installation step:
  • works on Windows if no 'rm' binary exists
  • works if 'cmsPath' is set != "."

Link to documentations

Please select:

• Documentation link for docs.joomla.org:

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

Upmerge

• Please up-merge this PR to dev-5.1, dev-5.2 and dev-6.0 as the fixed issues are the same for those branches.