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use `--query --generators' anymore.
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Renamed `fstateRefs' to `fstateRequisites'. The semantics of this
function is that it returns a list of all paths necessary to realise
a given expression. For a derive expression, this is the union of
requisites of the inputs; for a slice expression, it is the path of
each element in the slice. Also included are the paths of the
expressions themselves. Optionally, one can also include the
requisites of successor expressions (to recycle intermediate
results).
* `nix-switch' now distinguishes between an expression and its normal
form. Usually, only the normal form is registered as a root of the
garbage collector. With the `--source-root' flag, it will also
register the original expression as a root.
* `nix-collect-garbage' now has a flag `--keep-successors' which
causes successors not to be included in the list of garbage paths.
* `nix-collect-garbage' now has a flag `--invert' which will print all
paths that should *not* be garbage collected.
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this more efficient.
* A flag `-n' in 'nix --query' to normalise the argument. Default is
not to normalise.
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* Some minor refactoring.
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dynamically links against libdb4 (?!), due to LD_LIBRARY_PATH it picks
up our libdb4 instead of SuSE's libdb4, but our libdb4 uses another
glibc so loading barfs.
Instead, all packages should use rpaths to store library locations in
executables/libraries. The disadvantage is that overriding rpaths is
harder. (It is possible by invoking the dynamic linker directly, e.g.,
`/lib/ld-linux.so.2 --ignore-path LIST program args...' to ignore the
rpath for the libraries in LIST). It would be better to use DT_RUNPATH,
which is consulted by the dynamic linker *after* LD_LIBRARY_PATH but
*before* ld.so.cache and the system directories.
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* `nix --query --graph' to print a dot dependency graph of derive
expressions.
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instead (e.g., `-vvvv' for lots of output). Default is to only
print error messages.
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to reach the disk at all. Looks like a bug.
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up to the given verbosity levels. These currently are:
lvlError = 0,
lvlNormal = 5,
lvlDebug = 10,
lvlDebugMore = 15
although only lvlError and lvlDebug are actually used right now.
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(Of course, the real problem is that we open the database for
*every* operation; we should only open it once. And we should use
transactions.)
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* `make dist'.
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substituting for (obvious, really).
* For greater efficiency, nix-pull/unnar will place the output in a
path that is probably the same as what is actually needed, thus
preventing a path copy.
* Even if a output id is given in a Fix package expression, ensure
that the resulting Nix derive expression has a different id. This
is because Nix expressions that are semantically equivalent (i.e.,
build the same result) might be different w.r.t. efficiency or
divergence. It is absolutely vital for the substitute mechanism
that such expressions are not used interchangeably.
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corresponding to the given id.
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* When pushing, put the hash in the file name so that the
client can verify (proof-carrying file names?).
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(There should really be a switch for this).
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value; this potentially dangerous feature enables better
sharing for those paths for which the content is known in
advance (e.g., because a content hash is given).
* Fast builds: if we can expand all output paths of a derive
expression, we don't have to build.
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* A function to find all Nix expressions whose output ids are
completely contained in some set. Useful for uploading relevant Nix
expressions to a shared cache.
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read()/write() to fix this once and for all.
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database and store.
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number of bytes, e.g., in case of a signal like SIGSTOP.
This caused `nix --dump' to fail sometimes.
Note that this bug went unnoticed because the call to `nix
--dump' is in a pipeline, and the shell ignores non-zero
exit codes from all but the last element in the pipeline.
Is there any way to check the result of the initial elements
in the pipeline? (In other words, is it at all possible to
write reliable shell scripts?)
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input path is referenced in an output paths, we also have to
add all ids referenced by that input path.
* Better debug assertions to catch these sorts of errors.
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* Fix -qp query.
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This is not entirely trivial since this introduces the possibility
of mutual recursion.
* Made normal forms self-contained.
* Use unique ids, not content hashes, for content referencing.
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opposed to declared references. This prunes the reference
graph, thus allowing better garbage collection and more
efficient derivate distribution.
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through config.h, to prevent silly Autoconf problems.
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etc. correctly.
* Fixed nix-switch.
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returning different paths if the hash of the path to be added was
already available in the store under a different name).
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