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Apple M1: Detect incompatible universal merges 

Adds a step to detect when the Intel and arm64 build trees cannot be merged
safely. This can occur when each side has files/folders that are named the same
but are of different types or symlinks that are the same name but need to point
to different locations for each architecture.

Before this change, this would just fail silently.
This commit is contained in:
Skyler Saleh 2021-05-22 15:18:43 -07:00
parent 76ed9310f2
commit abea411bdc
1 changed files with 31 additions and 1 deletions
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30
BuildMacOSUniversalBinary.py
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@ -162,6 +162,32 @@ def recursive_merge_binaries(src0, src1, dst):
the source trees
"""
# Check that all files present in the folder are of the same type and that
# links link to the same relative location
for newpath0 in glob.glob(src0+"/*"):
filename = os.path.basename(newpath0)
newpath1 = os.path.join(src1, filename)
if not os.path.exists(newpath1):
continue
if os.path.islink(newpath0) and os.path.islink(newpath1):
if os.path.relpath(newpath0,src0) == os.path.relpath(newpath1,src1):
continue
if os.path.isdir(newpath0) and os.path.isdir(newpath1):
continue
# isfile() can be true for links so check that both are not links
# before checking if they are both files
if (not os.path.islink(newpath0)) and (not os.path.islink(newpath1)):
if os.path.isfile(newpath0) and os.path.isfile(newpath1):
continue
raise Exception(f"{newpath0} and {newpath1} cannot be " +
"merged into a universal binary because they are of " +
"incompatible types. Perhaps the installed libraries" +
" are from different versions for each architecture")
for newpath0 in glob.glob(src0+"/*"):
filename = os.path.basename(newpath0)
newpath1 = os.path.join(src1, filename)
@ -171,7 +197,11 @@ def recursive_merge_binaries(src0, src1, dst):
continue
if not os.path.exists(newpath1):
if os.path.isdir(newpath0):
shutil.copytree(newpath0, new_dst_path)
else:
shutil.copy(newpath0, new_dst_path)
continue
if os.path.isdir(newpath1):