An extraction script that makes the LF reading libraries (DAML LF archive decoding to an AST) usable in other Haskell projects.
This script once existed but is not available any more, so I have resurrected the script, adapted to current usage, and upgraded to the newest stackage LTS that can support it. These libraries _could_ be versioned manually to released SDKs and published if desirable (without making any guarantees about the stability, therefore prefixing the version with `0.`.
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Tool to extract Haskell libraries for DAML LF archives for use in other Haskell projects
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* Use package metadata instead of file names to infer unit ids
This PR adds a function that abstracts over whether we get metadata
from a filename (< 1.dev) or directly from the LF metadata.
There is more work to be done here, in particular, I want to clean up
the hacks around daml-prim/daml-stdlib but I’ll leave that for a
separate PR.
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* Update compiler/daml-lf-ast/src/DA/Daml/LF/Ast/Util.hs
Co-Authored-By: associahedron <231829+associahedron@users.noreply.github.com>
* Refactor getUnitId
Co-authored-by: associahedron <231829+associahedron@users.noreply.github.com>
Currently, we generate the `depends` field in the ghc-pkg config file
based on the file name of the DARs in the `dependencies` field in
`daml.yaml`. This falls apart when you use the -o option to `daml
build` since `ghc-pkg` will complain about missing packages.
This PR adds the name to the manifest so that we can generate the
`depends` field based on that but I’ll leave that change for a
separate PR.
* language: suffix all dalfs dependencies in a dar with the pkgid.
This makes sure that dalf dependencies are not accidentally overwritten
when two packages with equally named dalfs are imported.
* factor out parseUnitId
This switches the creation of the archive in `daml build` from
`zip-archive` to `zip`. This has a few advantages:
1. It gets rid of lazy IO for reading all the interface and source
files. This avoids the high usage of file handles in `daml build`.
2. It seems to be a slight improvement in max memory usage and runtime
and a giant improvement in allocations (but I think the latter
probably comes primarily from the fact that the locations are moved to
the bzip C library). The improvement in max memory usage is less than
I expected so probably there is still something off somewhere.
For now, I only switched over `createArchive`. Archive reading is
still done using `zip-archive`. We might want to switch that over in a
separate PR.
* language: Check for different SDK versions when building pkg db
This fixes#2510. We check whether packages were compiled with differen
SDK versions and emmit an understandable error if so.
* addressing moritz comments
* language: put hash in package directories
We put the package id of the main dalf of a package into the directory
names, where we store the files of that package in the package database.
This way we make sure that two equally named packages don't overwrite
their dependencies and files.
* handling dalfs flowing to next line
* space not blank
* Lints and space
* fixing the test names
* filter using not.null
* Using fold instead. makes reading easy
* Format everything
* Removing use of partial function
Previously, we got the package id by listing all packages and taking
the first. That is not a valid assumption and broke with a PR. This PR
changes the tests to use the DAR reader that we already used for
visualization (now factored into a separate library) and reads the
main dalf using that.
