SConstruct: avoid incorrect usage of sconf.TryAction
Closes #3918 Replace all previous uses of `call` and `TryAction` with a new function `silent_command`, which invokes `subprocess.Popen` and returns both exit status and command output.
This commit is contained in:
Mickey Rose
parent
42d3f2d0d3
commit
9baa10d135
1 changed files with 72 additions and 26 deletions
96
SConstruct
96
SConstruct
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@ -34,6 +34,20 @@ try:
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except:
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HAS_DISTUTILS = False
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try:
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# Python 3.3+
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from shlex import quote as shquote
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except:
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# Python 2.7
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from pipes import quote as shquote
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try:
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# Python 3.3+
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from subprocess import DEVNULL
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except:
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# Python 2.7
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DEVNULL = open(os.devnull, 'w')
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LIBDIR_SCHEMA_DEFAULT='lib'
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severities = ['debug', 'warn', 'error', 'none']
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@ -157,12 +171,41 @@ def regular_print(color,text,newline=True):
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else:
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print (text)
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def call(cmd, silent=False):
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stdin, stderr = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE).communicate()
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if not stderr:
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return stdin.strip()
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elif not silent:
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color_print(1,'Problem encounted with SCons scripts, please post bug report to: https://github.com/mapnik/mapnik/issues \nError was: %s' % stderr)
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def shell_command(cmd, *args, **kwargs):
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""" Run command through shell.
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`cmd` should be a valid, properly shell-quoted command.
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Additional positional arguments, if provided, will each
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be individually quoted as necessary and appended to `cmd`,
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separated by spaces.
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Additional keyword arguments will be passed to `Popen`.
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Returns a tuple `(result, output)` where:
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`result` = True if the command completed successfully,
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False otherwise
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`output` = string capturing the command's stdout (utf-8)
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with trailing whitespace removed
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"""
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# `cmd` itself is intentionally not wrapped in `shquote` here
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# in order to support passing user-provided commands that may
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# include arguments. For example:
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#
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# ret, out = shell_command(env['CXX'], '--version')
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#
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# needs to work even if `env['CXX'] == 'ccache c++'`
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#
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if args:
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cmdstr = ' '.join([cmd] + [shquote(a) for a in args])
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else:
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cmdstr = cmd
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proc = Popen(cmdstr, shell=True, stdout=PIPE, **kwargs)
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out, err = proc.communicate()
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return proc.returncode == 0, out.decode('utf-8').rstrip()
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def silent_command(cmd, *args):
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return shell_command(cmd, *args, stderr=DEVNULL)
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def strip_first(string,find,replace=''):
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if string.startswith(find):
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@ -578,19 +621,22 @@ def prioritize_paths(context, silent=True):
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def CheckPKGConfig(context, version):
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context.Message( 'Checking for pkg-config... ' )
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ret = context.TryAction('pkg-config --atleast-pkgconfig-version=%s' % version)[0]
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context.sconf.cached = False
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ret, _ = silent_command('pkg-config --atleast-pkgconfig-version', version)
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context.Result( ret )
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return ret
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def CheckPKG(context, name):
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context.Message( 'Checking for %s... ' % name )
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ret = context.TryAction('pkg-config --exists \'%s\'' % name)[0]
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context.sconf.cached = False
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ret, _ = silent_command('pkg-config --exists', name)
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context.Result( ret )
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return ret
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def CheckPKGVersion(context, name, version):
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context.Message( 'Checking for at least version %s for %s... ' % (version,name) )
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ret = context.TryAction('pkg-config --atleast-version=%s \'%s\'' % (version,name))[0]
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context.sconf.cached = False
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ret, _ = silent_command('pkg-config --atleast-version', version, name)
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context.Result( ret )
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return ret
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@ -601,8 +647,9 @@ def parse_config(context, config, checks='--libs --cflags'):
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if config in ('GDAL_CONFIG'):
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toolname += ' %s' % checks
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context.Message( 'Checking for %s... ' % toolname)
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context.sconf.cached = False
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cmd = '%s %s' % (env[config], checks)
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ret = context.TryAction(cmd)[0]
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ret, value = silent_command(cmd)
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parsed = False
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if ret:
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try:
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@ -613,7 +660,6 @@ def parse_config(context, config, checks='--libs --cflags'):
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# and thus breaks knowledge below that gdal worked
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# TODO - upgrade our scons logic to support Framework linking
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if env['PLATFORM'] == 'Darwin':
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value = call(cmd,silent=True)
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if value and '-framework GDAL' in value:
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env['LIBS'].append('gdal')
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if os.path.exists('/Library/Frameworks/GDAL.framework/unix/lib'):
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@ -643,12 +689,11 @@ def get_pkg_lib(context, config, lib):
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libname = None
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env = context.env
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context.Message( 'Checking for name of %s library... ' % lib)
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cmd = '%s --libs' % env[config]
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ret = context.TryAction(cmd)[0]
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context.sconf.cached = False
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ret, value = silent_command(env[config], '--libs')
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parsed = False
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if ret:
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try:
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value = call(cmd, silent=True).decode("utf8")
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if ' ' in value:
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parts = value.split(' ')
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if len(parts) > 1:
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@ -671,10 +716,10 @@ def parse_pg_config(context, config):
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env = context.env
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tool = config.lower()
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context.Message( 'Checking for %s... ' % tool)
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ret = context.TryAction(env[config])[0]
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context.sconf.cached = False
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ret, lib_path = silent_command(env[config], '--libdir')
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ret, inc_path = silent_command(env[config], '--includedir')
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if ret:
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lib_path = call('%s --libdir' % env[config]).decode("utf8")
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inc_path = call('%s --includedir' % env[config]).decode("utf8")
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env.AppendUnique(CPPPATH = fix_path(inc_path))
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env.AppendUnique(LIBPATH = fix_path(lib_path))
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lpq = env['PLUGINS']['postgis']['lib']
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@ -688,7 +733,8 @@ def parse_pg_config(context, config):
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def ogr_enabled(context):
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env = context.env
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context.Message( 'Checking if gdal is ogr enabled... ')
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ret = context.TryAction('%s --ogr-enabled' % env['GDAL_CONFIG'])[0]
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context.sconf.cached = False
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ret, _ = silent_command(env['GDAL_CONFIG'], '--ogr-enabled')
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if not ret:
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if 'ogr' not in env['SKIPPED_DEPS']:
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env['SKIPPED_DEPS'].append('ogr')
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@ -833,10 +879,10 @@ int main() {
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context.Result('u_getDataDirectory returned %s' % ret[1])
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return ret[1].strip()
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else:
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ret = call("icu-config --icudatadir", silent=True)
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ret, value = silent_command('icu-config --icudatadir')
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if ret:
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context.Result('icu-config returned %s' % ret.decode("utf8"))
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return ret.decode('utf8')
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context.Result('icu-config returned %s' % value)
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return value
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else:
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context.Result('Failed to detect (mapnik-config will have null value)')
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return ''
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@ -1274,11 +1320,11 @@ if not preconfigured:
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env['PLATFORM'] = platform.uname()[0]
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color_print(4,"Configuring on %s in *%s*..." % (env['PLATFORM'],mode))
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cxx_version = call("%s --version" % env["CXX"] ,silent=True)
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if cxx_version:
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color_print(5, "CXX %s" % cxx_version.decode("utf8"))
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ret, cxx_version = silent_command(env['CXX'], '--version')
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if ret:
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color_print(5, "C++ compiler: %s" % cxx_version)
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else:
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color_print(5, "Could not detect CXX compiler")
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color_print(5, "Could not detect C++ compiler")
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env['MISSING_DEPS'] = []
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env['SKIPPED_DEPS'] = []
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