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-rwxr-xr-xmeta/recipes-devtools/meson/meson/meson-setup.py69
1 files changed, 19 insertions, 50 deletions
diff --git a/meta/recipes-devtools/meson/meson/meson-setup.py b/meta/recipes-devtools/meson/meson/meson-setup.py
index a9749eae9d4..808e2a062f6 100755
--- a/meta/recipes-devtools/meson/meson/meson-setup.py
+++ b/meta/recipes-devtools/meson/meson/meson-setup.py
@@ -1,62 +1,31 @@
#!/usr/bin/env python3
import os
+import string
import sys
-def bail(msg):
- print(msg, file=sys.stderr)
- sys.exit(1)
-
-_MARKER = '@@'
-def transform_line(line):
- # Substitute any special markers of this form:
- # @@ENV@@
- # with the value of ENV, split into meson array syntax.
- start = line.find(_MARKER)
- if start == -1:
- return line
-
- end = line.rfind(_MARKER)
- if end == start:
- return line
-
- # Lookup value of the env var.
- var = line[start+len(_MARKER):end]
- try:
- val = os.environ[var]
- except KeyError:
- bail('cannot generate meson.cross; env var %s not set' % var)
+class Template(string.Template):
+ delimiter = "@"
- # Transform into meson array.
- val = ["'%s'" % x for x in val.split()]
- val = ', '.join(val)
- val = '[%s]' % val
+class Environ():
+ def __getitem__(self, name):
+ val = os.environ[name]
+ val = ["'%s'" % x for x in val.split()]
+ val = ', '.join(val)
+ val = '[%s]' % val
+ return val
- before = line[:start]
- after = line[end+len(_MARKER):]
-
- return '%s%s%s' % (before, val, after)
-
-# Make sure this is really an SDK extraction environment.
try:
sysroot = os.environ['OECORE_NATIVE_SYSROOT']
except KeyError:
- bail('OECORE_NATIVE_SYSROOT env var must be set')
-
-cross_file = os.path.join(sysroot, 'usr/share/meson/meson.cross')
-tmp_cross_file = '%s.tmp' % cross_file
+ print("Not in environment setup, bailing")
+ sys.exit(1)
-# Read through and transform the current meson.cross.
-lines = []
-with open(cross_file, 'r') as f:
- for line in f:
- lines.append(transform_line(line))
+template_file = os.path.join(sysroot, 'usr/share/meson/meson.cross.template')
+cross_file = os.path.join(sysroot, 'usr/share/meson/%smeson.cross' % os.environ["TARGET_PREFIX"])
-# Write the transformed result to a tmp file and atomically rename it. In case
-# we crash during the file write, we don't want an invalid meson.cross file.
-with open(tmp_cross_file, 'w') as f:
- for line in lines:
- f.write(line)
- f.flush()
- os.fdatasync(f.fileno())
-os.rename(tmp_cross_file, cross_file)
+with open(template_file) as in_file:
+ template = in_file.read()
+ output = Template(template).substitute(Environ())
+ with open(cross_file, "w") as out_file:
+ out_file.write(output)