This allows capturing the current value/result of
`errno`/`GetLastError()` before constructing the error message. Useful
when the error message construction itself might clobber the error code
(e.g., calling `descriptorToPath()`).
Usage:
```
throw NativeSysError([&] { return HintFmt("msg %s", foo()); });
```
The error code is captured when the exception is constructed, then the
lambda is called to produce the `HintFmt`.
Also fix the Windows build
Bug has existed for a long time, but was only recently surfaced by
6733f2e5ce. time_t was being implicitly promoted
to unsigned. Apparently time_t is still 32 bit for i686-linux in nixpkgs.
Fixes https://hydra.nixos.org/build/322992746/nixlog/1
When the common pattern for store config constructors is to accept
an arbitrary string it's unclear whether it needs pct-decoding or not.
Prior to c436b7a32a the string passed to
the constructors was a mix of encoded authority and decoded path concatenated
with a `/`. After that commit it accidentally started accepting pct-encoded
result of renderAuthorityAndPath, but only in some code paths. This lead to
file:///tmp/a+b to be created on disk in /tmp/a%2Bb directory. Similar issue
affected the less-known variant with local:///tmp/a+b. Regular store references
that are local paths were not affected.
This patch changes the constructors to accept different types to signify what
is actually needed to let the factory method handle this in a consistent way:
- std::filesystem::path - local binary cache store and local store
- ParsedURL::Authority - for ssh stores
- ParsedURL - for http stores
(Some MinGW build fixes by Amaan Qureshi <git@amaanq.com>)
This reflects the fact that it is returning a new, "owned" file
descriptor, that it is the caller's responsibility to close.
Co-authored-by: Amaan Qureshi <git@amaanq.com>
- Convert `no-url-literals` from experimental feature to `Diagnose`
setting
Replace `Xp::NoUrlLiterals` with a new `lint-url-literals` setting
that accepts `ignore`, `warn`, or `fatal`. This provides more
flexibility than the binary experimental feature.
- Convert `warn-short-path-literals` to use new lint infra
We now have `lint-short-path-literals = ignore | warn | fatal`
instead.
- Convert some of the tests to lang tests
Fix#10048
Progress on #10281
Get rid of manual decompression entirely. We can support zstd, br,
deflate (which was broken previously) and gzip/x-gzip encodings via curl
without manual work on our side. This is the same approach that was taken by lix.
Also adds some tests for x-gzip support.
Logging should not check for interrupts. Use the new writeFullLogging
function to write JSON output to get similar behavior to SimpleLogger.
This avoids the logger itself throwing Interrupted exceptions in
handleExceptions.
Generalize writeToStderr into writeFullLogging, with similar behavior
but taking an arbitrary fd, and reimplement writeToStderr with it as a
convenient wrapper.
See docs for what it is. Use in DerivationBuilderImpl::writeBuilderFile
and deletePath. Also adds O_DIRECTORY via openDirectory in deletePath.
Co-authored-by: Sergei Zimmerman <sergei@zimmerman.foo>
This takes the `std::filesystem::path` migration from the CLI layer into the core libraries (libutil, libstore, libexpr, libfetchers, libflake), converting function signatures, settings fields, and locals throughout `file-system.hh`, `archive.hh`, `configuration.hh`, and their implementations. `PathSetting` becomes `Setting<std::filesystem::path>` in `local-overlay-store.hh` and `local-store.hh` with `.get()` calls at use sites, and several `writeFile` overloads collapse now that the `Path`-based wrappers in `file-system.hh` are gone.
Co-authored-by: Amaan Qureshi <git@amaanq.com>
Adds additional layers of hardening for various file-writing utility
functions in the derivation builder. Bad names in non-structured attrs
case are already checked against `[A-Za-z_][A-Za-z0-9_.-]*` regex, so
this isn't an issue, but adding more hardening is good regardless.
John Ericson