[llvm] r272021 - [lit] Improve logging with file redirection.

Michael Spencer via llvm-commits llvm-commits at lists.llvm.org
Tue Jun 7 12:56:36 PDT 2016


On Tue, Jun 7, 2016 at 9:13 AM, Daniel Dunbar via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: ddunbar
> Date: Tue Jun  7 11:13:40 2016
> New Revision: 272021
>
> URL: http://llvm.org/viewvc/llvm-project?rev=272021&view=rev
> Log:
> [lit] Improve logging with file redirection.
>
>  - This will cause lit to automatically include the first 1K of data in
>    redirected output files when a command fails (previously if the command
>    failed, but the main point of the test was, say, a `FileCheck` later on, then
>    the log wasn't helpful in showing why the command failed).
>
> Modified:
>     llvm/trunk/utils/lit/lit/TestRunner.py
>     llvm/trunk/utils/lit/tests/Inputs/shtest-output-printing/basic.txt
>     llvm/trunk/utils/lit/tests/shtest-output-printing.py
>     llvm/trunk/utils/lit/tests/shtest-shell.py
>
> Modified: llvm/trunk/utils/lit/lit/TestRunner.py
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/lit/TestRunner.py?rev=272021&r1=272020&r2=272021&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/lit/TestRunner.py (original)
> +++ llvm/trunk/utils/lit/lit/TestRunner.py Tue Jun  7 11:13:40 2016
> @@ -113,12 +113,14 @@ class TimeoutHelper(object):
>  class ShellCommandResult(object):
>      """Captures the result of an individual command."""
>
> -    def __init__(self, command, stdout, stderr, exitCode, timeoutReached):
> +    def __init__(self, command, stdout, stderr, exitCode, timeoutReached,
> +                 outputFiles = []):
>          self.command = command
>          self.stdout = stdout
>          self.stderr = stderr
>          self.exitCode = exitCode
>          self.timeoutReached = timeoutReached
> +        self.outputFiles = list(outputFiles)
>
>  def executeShCmd(cmd, shenv, results, timeout=0):
>      """
> @@ -268,7 +270,7 @@ def _executeShCmd(cmd, shenv, results, t
>                      # FIXME: Actually, this is probably an instance of PR6753.
>                      if r[1] == 'a':
>                          r[2].seek(0, 2)
> -                    opened_files.append(r[2])
> +                    opened_files.append(tuple(r) + (redir_filename,))
>                  result = r[2]
>              final_redirects.append(result)
>
> @@ -342,7 +344,7 @@ def _executeShCmd(cmd, shenv, results, t
>      # need to release any handles we may have on the temporary files (important
>      # on Win32, for example). Since we have already spawned the subprocess, our
>      # handles have already been transferred so we do not need them anymore.
> -    for f in opened_files:
> +    for (name, mode, f, path) in opened_files:
>          f.close()
>
>      # FIXME: There is probably still deadlock potential here. Yawn.
> @@ -393,8 +395,21 @@ def _executeShCmd(cmd, shenv, results, t
>          except:
>              err = str(err)
>
> +        # Gather the redirected output files.
> +        output_files = []
> +        for (name, mode, f, path) in sorted(opened_files):
> +            if mode in ('w', 'a'):
> +                try:
> +                    with open(path) as f:
> +                        data = f.read()
> +                except:
> +                    data = None
> +                if data != None:
> +                    output_files.append((name, path, data))
> +
>          results.append(ShellCommandResult(
> -            cmd.commands[i], out, err, res, timeoutHelper.timeoutReached()))
> +            cmd.commands[i], out, err, res, timeoutHelper.timeoutReached(),
> +            output_files))
>          if cmd.pipe_err:
>              # Python treats the exit code as a signed char.
>              if exitCode is None:
> @@ -455,6 +470,19 @@ def executeScriptInternal(test, litConfi
>              continue
>
>          # Otherwise, something failed or was printed, show it.
> +
> +        # Add the command output, if redirected.
> +        for (name, path, data) in result.outputFiles:
> +            if data.strip():
> +                out += "# redirected output from %r:\n" % (name,)
> +                data = to_string(data.decode('utf-8'))
> +                if len(data) > 1024:
> +                    out += data[:1024] + "\n...\n"
> +                    out += "note: data was truncated\n"
> +                else:
> +                    out += data
> +                out += "\n"
> +
>          if result.stdout.strip():
>              out += '# command output:\n%s\n' % (result.stdout,)
>          if result.stderr.strip():
>
> Modified: llvm/trunk/utils/lit/tests/Inputs/shtest-output-printing/basic.txt
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/tests/Inputs/shtest-output-printing/basic.txt?rev=272021&r1=272020&r2=272021&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/tests/Inputs/shtest-output-printing/basic.txt (original)
> +++ llvm/trunk/utils/lit/tests/Inputs/shtest-output-printing/basic.txt Tue Jun  7 11:13:40 2016
> @@ -1,3 +1,3 @@
>  # RUN: true
>  # RUN: echo hi
> -# RUN: false
> +# RUN: wc missing-file &> %t.out
>
> Modified: llvm/trunk/utils/lit/tests/shtest-output-printing.py
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/tests/shtest-output-printing.py?rev=272021&r1=272020&r2=272021&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/tests/shtest-output-printing.py (original)
> +++ llvm/trunk/utils/lit/tests/shtest-output-printing.py Tue Jun  7 11:13:40 2016
> @@ -1,7 +1,7 @@
>  # Check the various features of the ShTest format.
>  #
>  # RUN: not %{lit} -j 1 -v %{inputs}/shtest-output-printing > %t.out
> -# RUN: FileCheck < %t.out %s
> +# RUN: FileCheck --input-file %t.out %s
>  #
>  # END.
>
> @@ -21,6 +21,8 @@
>  # CHECK-NEXT: # command output:
>  # CHECK-NEXT: hi
>  #
> -# CHECK:      $ "false"
> -# CHECK-NEXT: note: command had no output on stdout or stderr
> +# CHECK:      $ "wc" "missing-file"
> +# CHECK-NEXT: # redirected output from '{{.*}}/basic.txt.tmp.out':
> +# CHECK-NEXT: missing-file{{.*}} No such file or directory
> +# CHECK:      note: command had no output on stdout or stderr
>  # CHECK-NEXT: error: command failed with exit status: 1
>
> Modified: llvm/trunk/utils/lit/tests/shtest-shell.py
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/lit/tests/shtest-shell.py?rev=272021&r1=272020&r2=272021&view=diff
> ==============================================================================
> --- llvm/trunk/utils/lit/tests/shtest-shell.py (original)
> +++ llvm/trunk/utils/lit/tests/shtest-shell.py Tue Jun  7 11:13:40 2016
> @@ -1,7 +1,7 @@
>  # Check the internal shell handling component of the ShTest format.
>  #
>  # RUN: not %{lit} -j 1 -v %{inputs}/shtest-shell > %t.out
> -# RUN: FileCheck < %t.out %s
> +# RUN: FileCheck --input-file %t.out %s
>  #
>  # END.
>
>
>
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This breaks for me for some tests with:

UnboundLocalError: local variable 'redir_filename' referenced before assignment

Python 2.7.10

Unresolved Tests (70):
    Clang :: Analysis/inline-unique-reports.c
    Clang :: CodeGenCXX/microsoft-abi-alignment-fail.cpp
    Clang :: CodeGenCXX/microsoft-abi-non-virtual-base-ordering.cpp
    Clang :: CodeGenCXX/microsoft-abi-rtti.cpp
    Clang :: CodeGenCXX/microsoft-abi-vtables-virtual-inheritance-vtordisps.cpp
    Clang :: Driver/msc-version.c
    Clang :: Format/multiple-inputs-error.cpp
    Clang :: Frontend/optimization-remark.c
    Clang :: Frontend/profile-sample-use-loc-tracking.c
    Clang :: Frontend/stdin.c
    Clang :: Integration/cocoa-pch.m
    Clang :: Layout/itanium-union-bitfield.cpp
    Clang :: Layout/ms-x86-alias-avoidance-padding.cpp
    Clang :: Layout/ms-x86-aligned-tail-padding.cpp
    Clang :: Layout/ms-x86-basic-layout.cpp
    Clang :: Layout/ms-x86-bitfields-vbases.cpp
    Clang :: Layout/ms-x86-declspec-empty_bases.cpp
    Clang :: Layout/ms-x86-empty-base-after-base-with-vbptr.cpp
    Clang :: Layout/ms-x86-empty-layout.c
    Clang :: Layout/ms-x86-empty-nonvirtual-bases.cpp
    Clang :: Layout/ms-x86-empty-virtual-base.cpp
    Clang :: Layout/ms-x86-lazy-empty-nonvirtual-base.cpp
    Clang :: Layout/ms-x86-misalignedarray.cpp
    Clang :: Layout/ms-x86-pack-and-align.cpp
    Clang :: Layout/ms-x86-primary-bases.cpp
    Clang :: Layout/ms-x86-size-alignment-fail.cpp
    Clang :: Layout/ms-x86-vfvb-alignment.cpp
    Clang :: Layout/ms-x86-vfvb-sharing.cpp
    Clang :: Layout/ms-x86-vtordisp.cpp
    Clang :: Layout/ms_struct-bitfields.c
    Clang :: Misc/serialized-diags-frontend.c
    Clang :: Misc/serialized-diags-no-category.c
    Clang :: Misc/serialized-diags-stable.c
    Clang :: Misc/serialized-diags.c
    Clang :: Misc/serialized-diags.m
    Clang :: Modules/serialized-diags.m
    Clang :: Preprocessor/include-directive1.c
    Clang :: Preprocessor/include-directive3.c
    Clang :: Preprocessor/init-v7k-compat.c
    Clang :: Preprocessor/init.c
    Clang :: Sema/ms_bitfield_layout.c
    Clang :: Sema/ms_class_layout.cpp
    LLVM :: Assembler/align-inst-alloca.ll
    LLVM :: Assembler/align-inst-load.ll
    LLVM :: Assembler/align-inst-store.ll
    LLVM :: Bindings/llvm-c/add_named_metadata_operand.ll
    LLVM :: Bindings/llvm-c/objectfile.ll
    LLVM :: Bindings/llvm-c/set_metadata.ll
    LLVM :: FileCheck/check-empty.txt
    LLVM :: Linker/2002-07-17-LinkTest2.ll
    LLVM :: Linker/2002-08-20-ConstantExpr.ll
    LLVM :: Linker/2009-09-03-mdnode.ll
    LLVM :: MC/AArch64/arm64-v128_lo-diagnostics.s
    LLVM :: MC/AsmParser/floating-literals.s
    LLVM :: MC/Mips/elf_eflags_micromips.s
    LLVM :: Other/2009-09-14-function-elements.ll
    LLVM :: Other/ResponseFile.ll
    LLVM :: TableGen/BitsInitOverflow.td
    LLVM :: tools/llvm-objdump/eh_frame-arm64.test
    LLVM :: tools/llvm-objdump/eh_frame_zero_cie.test
    LLVM :: tools/llvm-objdump/macho-exports-trie.test
    LLVM :: tools/llvm-objdump/macho-unwind-info-arm64.test
    LLVM :: tools/llvm-objdump/macho-unwind-info-no-relocs.test
    LLVM :: tools/llvm-objdump/macho-unwind-info-x86_64.test
    lld :: ELF/default-output.s
    lld :: ELF/linkerscript-ouputformat.s
    lld :: ELF/linkerscript-outputarch.s
    lld :: ELF/warn-common.s
    lld :: mach-o/image-base.yaml
    lld :: mach-o/stack-size.yaml


- Michael Spencer


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