@@ -56,7 +56,7 @@ class TestCbfs(unittest.TestCase):
cls.have_lz4 = True
try:
tools.Run('lz4', '--no-frame-crc', '-c',
- tools.GetInputFilename('u-boot.bin'))
+ tools.GetInputFilename('u-boot.bin'), binary=True)
except:
cls.have_lz4 = False
@@ -170,7 +170,7 @@ class TestFunctional(unittest.TestCase):
cls.have_lz4 = True
try:
tools.Run('lz4', '--no-frame-crc', '-c',
- os.path.join(cls._indir, 'u-boot.bin'))
+ os.path.join(cls._indir, 'u-boot.bin'), binary=True)
except:
cls.have_lz4 = False
@@ -4,6 +4,7 @@
import os
import cros_subprocess
+import tools
"""Shell command ease-ups for Python."""
@@ -31,6 +32,13 @@ class CommandResult:
self.return_code = return_code
self.exception = exception
+ def ToOutput(self, binary):
+ if not binary:
+ self.stdout = tools.ToString(self.stdout)
+ self.stderr = tools.ToString(self.stderr)
+ self.combined = tools.ToString(self.combined)
+ return self
+
# This permits interception of RunPipe for test purposes. If it is set to
# a function, then that function is called with the pipe list being
@@ -41,7 +49,7 @@ test_result = None
def RunPipe(pipe_list, infile=None, outfile=None,
capture=False, capture_stderr=False, oneline=False,
- raise_on_error=True, cwd=None, **kwargs):
+ raise_on_error=True, cwd=None, binary=False, **kwargs):
"""
Perform a command pipeline, with optional input/output filenames.
@@ -67,7 +75,7 @@ def RunPipe(pipe_list, infile=None, outfile=None,
else:
return test_result
# No result: fall through to normal processing
- result = CommandResult()
+ result = CommandResult(b'', b'', b'')
last_pipe = None
pipeline = list(pipe_list)
user_pipestr = '|'.join([' '.join(pipe) for pipe in pipe_list])
@@ -93,29 +101,36 @@ def RunPipe(pipe_list, infile=None, outfile=None,
if raise_on_error:
raise Exception("Error running '%s': %s" % (user_pipestr, str))
result.return_code = 255
- return result
+ return result.ToOutput(binary)
if capture:
result.stdout, result.stderr, result.combined = (
last_pipe.CommunicateFilter(None))
if result.stdout and oneline:
- result.output = result.stdout.rstrip('\r\n')
+ result.output = result.stdout.rstrip(b'\r\n')
result.return_code = last_pipe.wait()
else:
result.return_code = os.waitpid(last_pipe.pid, 0)[1]
if raise_on_error and result.return_code:
raise Exception("Error running '%s'" % user_pipestr)
- return result
+ return result.ToOutput(binary)
def Output(*cmd, **kwargs):
kwargs['raise_on_error'] = kwargs.get('raise_on_error', True)
return RunPipe([cmd], capture=True, **kwargs).stdout
def OutputOneLine(*cmd, **kwargs):
+ """Run a command and output it as a single-line string
+
+ The command us expected to produce a single line of output
+
+ Returns:
+ String containing output of command
+ """
raise_on_error = kwargs.pop('raise_on_error', True)
- return (RunPipe([cmd], capture=True, oneline=True,
- raise_on_error=raise_on_error,
- **kwargs).stdout.strip())
+ result = RunPipe([cmd], capture=True, oneline=True,
+ raise_on_error=raise_on_error, **kwargs).stdout.strip()
+ return result
def Run(*cmd, **kwargs):
return RunPipe([cmd], **kwargs).stdout
@@ -186,7 +186,7 @@ def PathHasFile(path_spec, fname):
return True
return False
-def Run(name, *args):
+def Run(name, *args, **kwargs):
"""Run a tool with some arguments
This runs a 'tool', which is a program used by binman to process files and
@@ -201,13 +201,14 @@ def Run(name, *args):
CommandResult object
"""
try:
+ binary = kwargs.get('binary')
env = None
if tool_search_paths:
env = dict(os.environ)
env['PATH'] = ':'.join(tool_search_paths) + ':' + env['PATH']
all_args = (name,) + args
result = command.RunPipe([all_args], capture=True, capture_stderr=True,
- env=env, raise_on_error=False)
+ env=env, raise_on_error=False, binary=binary)
if result.return_code:
raise Exception("Error %d running '%s': %s" %
(result.return_code,' '.join(all_args),
@@ -375,7 +376,7 @@ def ToBytes(string):
"""Convert a str type into a bytes type
Args:
- string: string to convert value
+ string: string to convert
Returns:
Python 3: A bytes type
@@ -385,6 +386,18 @@ def ToBytes(string):
return string.encode('utf-8')
return string
+def ToString(bval):
+ """Convert a bytes type into a str type
+
+ Args:
+ bval: bytes value to convert
+
+ Returns:
+ Python 3: A bytes type
+ Python 2: A string type
+ """
+ return bval.decode('utf-8')
+
def Compress(indata, algo, with_header=True):
"""Compress some data using a given algorithm
@@ -406,14 +419,14 @@ def Compress(indata, algo, with_header=True):
fname = GetOutputFilename('%s.comp.tmp' % algo)
WriteFile(fname, indata)
if algo == 'lz4':
- data = Run('lz4', '--no-frame-crc', '-c', fname)
+ data = Run('lz4', '--no-frame-crc', '-c', fname, binary=True)
# cbfstool uses a very old version of lzma
elif algo == 'lzma':
outfname = GetOutputFilename('%s.comp.otmp' % algo)
Run('lzma_alone', 'e', fname, outfname, '-lc1', '-lp0', '-pb0', '-d8')
data = ReadFile(outfname)
elif algo == 'gzip':
- data = Run('gzip', '-c', fname)
+ data = Run('gzip', '-c', fname, binary=True)
else:
raise ValueError("Unknown algorithm '%s'" % algo)
if with_header:
@@ -446,13 +459,13 @@ def Decompress(indata, algo, with_header=True):
with open(fname, 'wb') as fd:
fd.write(indata)
if algo == 'lz4':
- data = Run('lz4', '-dc', fname)
+ data = Run('lz4', '-dc', fname, binary=True)
elif algo == 'lzma':
outfname = GetOutputFilename('%s.decomp.otmp' % algo)
Run('lzma_alone', 'd', fname, outfname)
- data = ReadFile(outfname)
+ data = ReadFile(outfname, binary=True)
elif algo == 'gzip':
- data = Run('gzip', '-cd', fname)
+ data = Run('gzip', '-cd', fname, binary=True)
else:
raise ValueError("Unknown algorithm '%s'" % algo)
return data
At present all the 'command' methods return bytes. Most of the time we actually want strings, so change this. We still need to keep the internal representation as bytes since otherwise unicode strings might break over a read() boundary (e.g. 4KB), causing errors. But we can convert the end result to strings. Add a 'binary' parameter to cover the few cases where bytes are needed. Signed-off-by: Simon Glass <sjg@chromium.org> --- Changes in v2: None tools/binman/cbfs_util_test.py | 2 +- tools/binman/ftest.py | 2 +- tools/patman/command.py | 31 +++++++++++++++++++++++-------- tools/patman/tools.py | 29 +++++++++++++++++++++-------- 4 files changed, 46 insertions(+), 18 deletions(-)