| # Since we try to pass substitutions as-is to some tests, we must "escape" |
| # them in case they contain other substitutions. Otherwise, the substitutions |
| # will be fully expanded when passed to the tests. For example, we want an |
| # %{exec} substitution that contains `--execdir %T` to be passed as-is, without |
| # substituting the directory. This way, the test itself can populate %T as it |
| # sees fit, and %{exec} will respect it. |
| # |
| # To solve this problem, we add base64 encoded versions of substitutions just |
| # in this directory. We then base64-decode them from the tests when we need to. |
| # Another option would be to have a way to prevent expansion in Lit itself. |
| import base64 |
| import lit.util |
| base64Encode = lambda s: lit.util.to_string(base64.b64encode(lit.util.to_bytes(s))) |
| escaped = [(k.replace('%{', '%{escaped_'), base64Encode(v)) for (k, v) in config.substitutions] |
| config.substitutions.extend(escaped) |
| |
| # The tests in this directory need to run Python |
| import pipes |
| import sys |
| config.substitutions.append(('%{python}', pipes.quote(sys.executable))) |
