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54 lines
1.7 KiB
Bash
Executable File
54 lines
1.7 KiB
Bash
Executable File
#!/bin/sh -e
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# Seeing as this is the only rust package in the repositories (other than rust
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# itself), this will also serve as a reference to writing network-free rust
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# based packages.
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# Set the CARGO_HOME variable to the current directory to prevent cargo from
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# touching '$HOME/.cargo'. This keeps the build contained to the package
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# manager's domain.
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export CARGO_HOME="$PWD"
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# Instruct the compiler to trim absolute paths in resulting binaries and instead
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# change them to relative paths ($PWD/... ./...).
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export RUSTFLAGS="$RUSTFLAGS --remap-path-prefix=$PWD=."
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# Extract each crate and generate a checksum file. This effectively mimics
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# 'cargo vendor' without the network requirement. This allows the package
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# manager to cache each crate and handle them as regular sources.
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(
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cd vendor
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for crate in *.crate; do
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tar xf "$crate"
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# Strip the filename from the sha256sum output.
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sha256=$(sha256sum "$crate")
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sha256=${sha256%% *}
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printf '{"package":"%s","files":{}}\n' "$sha256" \
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> "${crate%.crate}/.cargo-checksum.json"
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done
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)
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# Cargo reads a "global" configuration file from $CARGO_HOME, as we've set it to
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# $PWD this is where we'll be storing the vendor config.
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mkdir -p .cargo
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# Create the configuration file to tell cargo to look in the 'vendor' directory
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# for the already downloaded sources rather than crates.io (over network).
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cat <<EOF > .cargo/config
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[source.crates-io]
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replace-with = "vendored-sources"
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[source.vendored-sources]
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directory = "vendor"
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EOF
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# Use the '--frozen' flag to tell cargo to skip the network and use whatever
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# dependencies are in the Cargo.[toml|lock] files.
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cargo build --release --frozen
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mkdir -p "$1/usr/bin"
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cp -f target/release/cbindgen "$1/usr/bin"
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