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Type:
Improvement
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Resolution: Won't Do
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: Build
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Labels:None
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Server Development Platform
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Fully Compatible
If you run the following command twice:
$ python3 ./buildscripts/scons.py --variables-files=etc/scons/mongodbtoolchain_v3_gcc.vars --separate-debug --install-mode=hygienic --implicit-cache --build-fast-and-loose=on archive-dist -j300 --debug=explain
Then the second build will recreate the dist archive, even though it should be viewed as up to date. The explain output looks like:
scons: done reading SConscript files.
scons: Building targets ...
scons: rebuilding `mongodb-dist.tgz' because:
`build/aib_make_archive.py' changed
`install-dist' changed
`/bin/tar' changed
Building package mongodb-dist.tgz from install-dist
scons: done building targets.
Now, the SCons --debug=explain output is notoriously unreliable. I suspect that what is actually happening is that the ordering of the file arguments to the tar command is unstable. But we should fix whatever is causing these to rebuild.