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Until now, the files where the people were meant to change didn't have a
proper copyright notice (for example `Copyright (C) YOUR NAME.'). This was
wrong because the license does not convey copyright ownership. So the name
of the file's original author must always be included and when people
modify it (and add their own copyright-able modifications).
With this commit, the file's original author (and email) are added to the
copyright notice and when more than one person modified a file, both names
have their individual copyright notice.
Based on this, the description for adding a copyright notice in
`README-hacking.md' has also been modified.
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Until now, the `for-group' script could only two options to Make and didn't
pass anything to `./configure'. With this commit, any thing given after the
first two tokens to `for-group' is passed directly to `./configure' or
Make.
Also, the test for the existance of the group has been modified to avoid
making a temporary file.
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Since the `install' script also sets permissions manually, the permissions
that we define in `for-group' don't usually affect the installed
files. Therefore the installed files of one user can't be modified/deleted
by another. With this commit, after for-group finishes configuration, it
also adds the write flag for all group members in the whole installation
directory.
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Until now the `./for-group' script would only add one argument to the Make
call, but in some situations, you need a second argument is well. With this
option, any possible fourth argument to `./for-group' is passed to Make.
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A few issues came up while testing the `for-group' script in one of the
projects based on this pipeline that are being fixed with this commit:
1) We are ultimately using the `sg' command to use the specified group,
not `chgrp'. So in cases where `chgrp' has problems, this would cause
a wrong error. So for the test of the given group's existance, we are
now directly calling `sg'.
2) In the call to `make' we were mistakenly giving make the `$2' (which
is `make' on the command-line) argument. Since `./for-group' now takes
the group name as its first argument, this should have been `$3'.
3) To help in readability, and also allow for group names with a space,
`reproducible_paper_group_name' is now defined and exported before the
final call to `sg'.
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Until now, the group name to build the project actually went into the Git
source of the project! This doesn't allow exact reproducibility on
different machines (where the group name may be different).
With this commit, the `for-group' script has been modified to accept the
group name as its first argument and pass that onto `configure' and
Make. This is much better now, because not only the existance of a group
installation is checked, but also the name of the group. It also made
things simpler (in particular in `LOCAL.mk.in').
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If the `./for-group' script is not used properly, it can lead to the whole
pipeline being re-run. Therefore it is important to do a sanity check
immediately at the start of Make's processing and inform the user if there
is a problem.
With this commit, `./for-group' exports the `reproducible_paper_for_group'
variable which is used by both the initial `./configure' script, and later
in each call to Make. The `./configure' script will use it to write a value
in `reproduce/config/pipeline/LOCAL.mk' and Make will use it to compare
with the value in `reproduce/config/pipeline/LOCAL.mk'.
If there is an inconsistency, Make will not even attempt to build anything
and will just print a message and abort.
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A minor typo was fixed to help in readability.
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Git needs cURL in its build. Until now, by chance cURL was always built
before Git, but while building this pipeline on a system, Git was built
before cURL and we found the problem.
I also noticed that we hadn't added `Your name <your@email.address>' to the
`for-group' script. This has been corrected now.
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On large projects, its often necessary to share the build directory between
the various users of the pipeline. To simplify the process a `for-group'
script is now added to the pipeline which is just a wrapper over the
`./configure' and `.local/bin/make' commands to make sure that the group
owner of the outputs and the permission flags are set properly.
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