abs.txt:
  desc: generates dest file based on absolute paths
  deps:
    - sub/src.txt
  dir: sub
  cmds:
    - cat src.txt > '{{.BUILD_DIR}}/abs.txt'
  sources:
    - src.txt
  generates:
    - "{{.BUILD_DIR}}/abs.txt"

rel.txt:
  desc: generates dest file based on relative paths
  deps:
    - sub/src.txt
  dir: sub
  cmds:
    - cat src.txt > '../rel.txt'
  sources:
    - src.txt
  generates:
    - "../rel.txt"

sub/src.txt:
  desc: generate source file
  cmds:
    - mkdir -p sub
    - echo "hello world" > sub/src.txt
    # Sleep to avoid time-stamp issue. Some filesystems, E.g. HFS+ for Mac OS,
    # only support one second precision on file timestamps.
    - sleep 1
  status:
    - test -f sub/src.txt