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Change Log

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

[v0.3.26] - 2022-06-01

Fixed

  • Fix handling spaces in the sysroot path.

[v0.3.25] - 2022-03-26

Changed

  • No longer enable the backtrace feature of error-chain by default to reduce build times. Install xargo with --features backtrace to re-enable backtraces.

[v0.3.24] - 2021-09-21

Fixed

  • Fix compiler_builtins error when building without explicit dependencies in the Xargo.toml (thanks to @anickol).

[v0.3.23] - 2021-05-08

Fixed

  • Allow running xargo from outside project root (thanks to @priyasiddharth).
  • Fix xargo when a target_dir is set for cargo (thanks to @oxalica).
  • Fix xargo for Windows targets.

[v0.3.22] - 2020-07-29

Fixed

  • Fix for changed rustc directory layout.
  • Support relative XARGO_RUST_SRC.

[v0.3.21] - 2020-07-11

Fixed

  • Make xargo fail on non-nightly, instead of continuing with the wrong sysroot.
  • Avoid adding '/' or '..' to paths for better Windows compatibility.

[v0.3.20] - 2020-03-25

Fixed

  • Check-only builds of windows-gnu targets now work without that target being installed for the toolchain.

[v0.3.19] - 2019-12-31

Added

  • Added a xargo-check binary that can be used for check-only builds of libstd (thanks to @Aaron1011).

[v0.3.18] - 2019-12-08

Added

  • Xargo now forces metadata for sysroot crates to be different from "normal" crates to avoid issues with custom sysroots that share crates with the project (thanks to @roblabla).

Fixed

  • Build could fail when the rust-src directory was read-only (thanks to @leo60228).

[v0.3.17] - 2019-11-08

Added

  • Xargo now honors the Cargo.lock file shipped in the rust-src component, to make builds reproducible even when new versions of libraries are released on crates.io.
  • Xargo now searches for the Xargo.toml file in parent directories as well, not just in the current directory (thanks to @Nils-TUD and @Thog).

Fixed

  • The --message-format was only forwarded to the project build, not the sysroot build (thanks to @roblabla).

[v0.3.16] - 2019-08-26

Fixed

  • Xargo now works again with recent nightlies.

v0.3.15 - 2019-08-08

Added

  • The cargo binary used by Xargo can be overwritten using the CARGO environment variable. (The same was already possible for rustc before, using RUSTC.)

Fixed

  • Xargo now works again with recent nightlies.

v0.3.14 - 2019-05-09

Fixed

  • Xargo now works again with recent nightlies.
  • Fixed Xargo for targets that do not have a bin directory in their rustlib folder.

Added

  • Allow specifying [patch] section in Xargo.toml.

v0.3.13 - 2018-12-18

Fixed

  • Xargo now works again with recent nightlies.

Added

  • When the XARGO_KEEP_TEMP env variable is set Xargo will keep the temporary directory used to build the sysroot. This is useful for debugging problems in Xargo.

v0.3.12 - 2018-04-08

Changed

  • The core and compiler_builtins crates are built when no Xargo.toml is present.

v0.3.11 - 2018-03-09

Added

  • Xargo now copies the bin directory from the original sysroot, the host sysroot, into its own. This lets you use binaries shipped with the Rust toolchain, like LLD.

v0.3.10 - 2017-12-28

Added

  • Print a warning when the stable or beta toolchain, which are not supported, is used.

Changed

  • Set RUST_TARGET_PATH when building the sysroot. This fixes builds when using custom targets with a recent toolchain.

Removed

  • The lock file included in the rust-src component is no longer used when building the sysroot. This fixes building a sysroot that contains the compiler-builtins crate.

v0.3.9 - 2017-09-06

Added

  • Use Cargo.lock from the rust-src component if available. With this change the Xargo sysroot will be built using the exact same set of dependencies that the official sysroot distributed via rustup uses.

  • The RUSTFLAGS variable internally used by Xargo is now printed when verbose (-v) mode is enabled.

Changed

  • Updated the documentation about building std with recent nightlies.

v0.3.8 - 2017-05-30

Changed

  • Improved the error message when --target foo.json is used.

v0.3.7 - 2017-05-13

Changed

  • Improved the error message when the rust-src component is missing.

v0.3.6 - 2017-04-07

Fixed

  • Xargo on Windows. The layout of the default / rustc sysroot recently changed on Windows on broke the code that copied the host part of the rustc sysroot into the Xargo sysroot.

v0.3.5 - 2017-01-20

Fixed

  • Relative paths in dependencies.{}.path were not being correctly handled.

v0.3.4 - 2017-01-18

Added

  • A [dependencies.{}.stage] (or [target.{}.dependencies.{}.stage]) entry in Xargo.toml. This lets you build a sysroot in "stages". This is required, for instance, to build the test crate whose dependency on the std crate is not explicitly listed in its Cargo.toml. Example:

To make xargo test work

# Xargo.toml
[dependencies.std]
features = ["panic_unwind"]  # `test` depends on this `std` feature
# stage = 0  # implicit

[dependencies.test]
stage = 1
  • Support for [dependencies.{}.git] or [dependencies.{}.path] (and their target.{}.dependencies variants) in Xargo.toml. With this feature you can inject foreign crates (crates which are not part of the rust-src component) into the sysroot. The main use case is replacing the std crate with a drop in replacement. Example:

Replace std with steed

[dependencies.collections]  # `steed` depends on `collections`

[dependencies.std]
git = "https://github.com/japaric/steed"
stage = 1

v0.3.3 - 2017-01-09

Added

  • Support for building a custom sysroot when compiling natively.
  • Support for specifying dependencies as [dependencies] in Xargo.toml.

v0.3.2 - 2017-01-03

Changed

  • XARGO_RUST_SRC is now used when working with nightly Rust and it has precedence over the rust-src component.

v0.3.1 - 2016-12-30

Added

  • You can now specify the location where Xargo stores the sysroots via the XARGO_HOME environment variable. If unspecified, the sysroots will be stored in $HOME/.xargo

v0.3.0 - 2016-12-28

Changed

  • [breaking-change] By default, Xargo now only compiles the core crate. To build more crates, use a Xargo.toml file

  • [breaking-change] Xargo will now build a sysroot for any target that's not the host.

  • The verbose flag, -v, makes Xargo print all the shell commands it invokes to stderr.

v0.2.3 - 2016-12-19

Added

  • Support for the 'dev' channel. When using the dev channel, you must specify the path to the Rust source directory via the XARGO_RUST_SRC environment variable.

Changed

  • The rust-src search logic to account for recent changes in the Rust distribution.

v0.2.2 - 2016-12-12

Changed

  • Xargo will now try to build every crate "below" std, i.e. all its dependencies, in topological order. This makes Xargo robust against changes in the std facade as it no longer depends on hard coded crate names like rustc_unicode.

  • Xargo won't rebuild the sysroot if the only thing that changed in Cargo.toml is profile.*.lto. Enabling/disabling LTO doesn't change how dependencies are compiled.

  • Xargo won't rebuild the sysroot if the linker flags (-C link-arg) have changed. Those don't affect how the dependencies are compiled.

v0.2.1 - 2016-10-22

Changed

  • No weird () output in xargo -V if Xargo was built via cargo install
  • Better formatted error messages. Mention the RUST_BACKTRACE env variable which is used to get backtraces on errors.

v0.2.0 - 2016-10-16

Added

  • Statically linked binary releases for Linux (x86 musl targets)
  • xargo -V output now includes the commit hash and date

Changed

  • Xargo now depends on the rust-src component being installed. Install it with rustup component add rust-src.
  • Xargo no longer depends on libcurl, libssh or libssl and, therefore, it's now much easier to build.
  • Xargo now respects the existing rustdocflags (RUSTDOCFLAGS env var, build.rustdocflags, etc) when passing --sysroot to rustdoc.
  • File locking logic has been revised/simplied and now lock periods are shorter

v0.1.14 - 2016-10-09

Added

  • xargo -V and xargo --version now report Xargo's version as well as Cargo's.

v0.1.13 - 2016-10-06

Added

  • Xargo now builds a sysroot for the new built-in thumbv*-none-eabi* targets which don't ship with a binary release of the standard crates.

v0.1.12 - 2016-10-04

Added

  • Xargo now supports per-target rustflags: target.thumbv7em-none-eabihf.rustflags in .cargo/config.

v0.1.11 - 2016-09-30

Fixed

  • xargo clean and other commands not associated to building stuff no longer trigger a sysroot rebuild.

v0.1.10 - 2016-09-28

Fixed

  • xargo doc, which wasn't working because we didn't pass --sysroot to rustdoc. Note that rustdoc gained support for '--sysroot' as of nightly-2016-06-28, so that version or newer is required to use xargo doc.

v0.1.9 - 2016-09-27

Fixed

  • "error: Invalid cross-device link (os error 18)" which occurred when $CARGO_HOME was mounted in a different device than "$XARGO_HOME" (~/.xargo). The solution was to stop using hard links to place the host libraries in the Xargo sysroot and instead just copy them. This is a regression in disk usage but this problem was coming up in common Docker usage patterns (-v A:B).

v0.1.8 - 2016-09-04

Changed

  • All the status messages are now printed to stderr instead of to stdout. Cargo did the same change (from stdout to stderr) a while ago. Let's follow suit.

Fixed

  • When compiling crate foo with Xargo, the profile section of foo's Cargo.toml is also "taken into account" when compiling the sysroot. For example, if foo has set panic = "abort" for all its profiles, then the sysroot will also be compiled with -C panic=abort. Previously, this wasn't the case.

v0.1.7 - 2016-09-03

Fixed

  • The sysroot now gets rebuilt when rust-src changes.

v0.1.6 - 2016-08-29

Added

  • Xargo can now use the source code installed by rustup. When available, this is the preferred way to fetch the source code and saves network bandwidth by not having to fetch the source tarball.

v0.1.5 - 2016-08-11

Fixed

  • Xargo now works properly when called from a rustup overriden directory.

v0.1.4 - 2016-08-06

Added

  • Support targets that don't support atomics ("max-atomic-width": 0). For these targets, Xargo only compiles the core and rustc_unicode crates as the other crates depend on atomics (e.g. alloc::Arc).

v0.1.3 - 2016-04-24

Added

  • xargo (..) --verbose passes --verbose to the cargo call that builds the sysroot.
  • the sysroot now gets rebuilt when RUSTFLAGS or build.rustflags is modified.

Fixed

  • Xargo now respects the build.rustflags value set in .cargo/config.
  • A bug where the hash/date file didn't get properly truncated before updating it leading to Xargo to always trigger a sysroot rebuild.

v0.1.2 - 2016-04-24 [YANKED]

Added

  • Xargo now uses file locking and can be executed concurrently.
  • Xargo now print its current status to the console while building a sysroot.
  • Xargo now reports errors to the console instead of panicking.

Removed

  • Logging via RUST_LOG has been removed now that Xargo prints its status to the console.

v0.1.1 - 2016-04-10

  • Initial release