v4.0.3

• Updated rustc_version dependency to be at least version 0.3.1 to avoid compilation issues with llvm_version which was added then.

v4.0.2

• Removed some transitive dependencies from the git2 crate (specifically openssl-sys) via the default-features = false flag to allow for running on more diverse systems.

v4.0.1

• Documentation updates

v4.0.0

Release 4.0 Breaking Changes

• The main entry point for use has changed from generate_cargo_keys to gen
• There are now 3 features that allow you to control what instructions can be generated (build, git, and rustc).
  • The build feature enables the VERGEN_BUILD_* instructions.
  • The git feature enables the VERGEN_GIT_* instructions, the cargo:rerun-if-changed instructions, and the REBUILD_ON_HEAD_CHANGE flag.
  • The rustc feature enables the VERGEN_RUSTC_* instructions.
  • By default, all three features are enabled.
  • You can build with all three features disabled, which basically make the gen function a no-op.
  • You can still use ConstantsFlags to toggle individual cargo instructions.
• The generated instructions have been normalized. Therefore, you may need to update what env variable you are referring to in code. I've included a list below of the full set of instructions that can be generated for reference.

cargo:rustc-env=VERGEN_BUILD_DATE=2021-02-12
cargo:rustc-env=VERGEN_BUILD_TIMESTAMP=2021-02-12T01:54:15.134750+00:00
cargo:rustc-env=VERGEN_GIT_BRANCH=feature/git2
cargo:rustc-env=VERGEN_GIT_COMMIT_DATE=2021-02-11T20:05:53-05:00
cargo:rustc-env=VERGEN_GIT_SEMVER=v3.2.0-86-g95fc0f5
cargo:rustc-env=VERGEN_GIT_SEMVER_LIGHTWEIGHT=blah-33-g95fc0f5
cargo:rustc-env=VERGEN_GIT_SHA=95fc0f5d066710f16e0c23ce3239d6e040abca0d
cargo:rustc-env=VERGEN_GIT_SHA_SHORT=95fc0f5
cargo:rustc-env=VERGEN_RUSTC_CHANNEL=nightly
cargo:rustc-env=VERGEN_RUSTC_COMMIT_DATE=2021-02-10
cargo:rustc-env=VERGEN_RUSTC_COMMIT_HASH=07194ffcd25b0871ce560b9f702e52db27ac9f77
cargo:rustc-env=VERGEN_RUSTC_HOST_TRIPLE=x86_64-apple-darwin
cargo:rustc-env=VERGEN_RUSTC_LLVM_VERSION=11.0
cargo:rustc-env=VERGEN_RUSTC_SEMVER=1.52.0-nightly
cargo:rerun-if-changed=/Users/yoda/projects/rust-lang/vergen/.git/HEAD
cargo:rerun-if-changed=/Users/yoda/projects/rust-lang/vergen/.git/refs/heads/feature/git2

• Under the hood, the Commands used for git have been removed in lieu of using the git2 library directly.
• git2 is also used to determine the HEAD path and the path that it refers to for the cargo:rerun-if-changed instructions. This is more reliable then the manual method that was in place before.
• I've migrated the CI stuff from Travis to GitHub Actions.

v3.2.0

• Merged in pull request adding support for some rustc related flags.
• Merged in pull request adding support for branch name.
• Merged in pull request removing some trailing newlines.
• Updated some 2018 edition stuff, add some deny lints, cleaned up some clippy lints.

Fix detached HEAD issue

When the repository is in a detached HEAD state, skip outputting the reference change cargo key, rather than erroring the build script.

git worktrees

Added support for git worktree directories

Fix detached HEAD issue

When the repository is in a detached HEAD state, skip outputting the reference change cargo key, rather than erroring the build script.

v.2.0.4

• Fixed docs.rs build issues.