llvm/utils/lit/tests/use-llvm-tool.py

   1 ## Show that lit reports the path of tools found via use_llvm_tool.
   2 ## Additionally show that use_llvm_tool uses in order of preference:
   3 ## 1) The path specified in an environment variable,
   4 ## 2) The LLVM tools build directory,
   5 ## 3) The PATH, if requested.
   6
   7 # RUN: %{lit} %{inputs}/use-llvm-tool 2>&1 | \
   8 # RUN:   FileCheck %s -DDIR=%p
   9
  10 ## The exact breakdown of cases is:
  11 ## Case | Env | Build Dir | PATH |
  12 ##   1  |  /  |     X     |  N/S | <- Can be found via env
  13 ##   2  |  X  |     /     |  N/S | <- Can be found via build dir if env specified
  14 ##   3  | N/S |     /     |  N/S | <- Can be found via build dir
  15 ##   4  | N/S |     X     |   /  | <- Can be found via PATH, if requested
  16 ##   5  | N/S |     X     |  N/S | <- Cannot be found via PATH, if not requested
  17 ##   6  |  /  |     /     |   /  | <- Env is preferred over build, PATH
  18 ##   7  | N/S |     /     |   /  | <- Build dir is preferred over PATH
  19 ##   8  |  X  |     X     |   X  | <- Say nothing if cannot be found if not required
  20 ##   9  | N/S |  override |  N/S | <- Use specified search directory, instead of default directory
  21 ##  10  | N/S |  override |   /  | <- Use PATH if not in search directory
  22
  23 ## Check the exact path reported for the first case, but don't bother for the
  24 ## others.
  25 # CHECK:      note: using case1: [[DIR]]{{[\\/]}}Inputs{{[\\/]}}use-llvm-tool{{[\\/]}}env-case1
  26 # CHECK-NEXT: note: using case2: {{.*}}build{{[\\/]}}case2
  27 # CHECK-NEXT: note: using case3: {{.*}}build{{[\\/]}}case3
  28 # CHECK-NEXT: note: using case4: {{.*}}path{{[\\/]}}case4
  29 # CHECK-NOT:  case5
  30 # CHECK-NEXT: note: using case6: {{.*}}env-case6
  31 # CHECK-NEXT: note: using case7: {{.*}}build{{[\\/]}}case7
  32 # CHECK-NOT:  case8
  33 # CHECK-NEXT: note: using case9: {{.*}}search2{{[\\/]}}case9
  34 # CHECK-NEXT: note: using case10: {{.*}}path{{[\\/]}}case10
  35
  36 ## Test that if required is True, lit errors if the tool is not found.
  37 # RUN: not %{lit} %{inputs}/use-llvm-tool-required 2>&1 | \
  38 # RUN:   FileCheck %s --check-prefix=ERROR
  39 # ERROR:      note: using found: {{.*}}found
  40 # ERROR-NEXT: fatal: couldn't find 'not-found' program