pkgs/build-support/rust/hooks/cargo-setup-hook.sh

   1 cargoSetupPostUnpackHook() {
   2     echo "Executing cargoSetupPostUnpackHook"
   3
   4     # Some cargo builds include build hooks that modify their own vendor
   5     # dependencies. This copies the vendor directory into the build tree and makes
   6     # it writable. If we're using a tarball, the unpackFile hook already handles
   7     # this for us automatically.
   8     if [ -z $cargoVendorDir ]; then
   9         if [ -d "$cargoDeps" ]; then
  10             local dest=$(stripHash "$cargoDeps")
  11             cp -Lr --reflink=auto -- "$cargoDeps" "$dest"
  12             chmod -R +644 -- "$dest"
  13         else
  14             unpackFile "$cargoDeps"
  15         fi
  16         export cargoDepsCopy="$(realpath "$(stripHash $cargoDeps)")"
  17     else
  18         cargoDepsCopy="$(realpath "$(pwd)/$sourceRoot/${cargoRoot:+$cargoRoot/}${cargoVendorDir}")"
  19     fi
  20
  21     if [ ! -d .cargo ]; then
  22         mkdir .cargo
  23     fi
  24
  25     config="$cargoDepsCopy/.cargo/config.toml"
  26     if [[ ! -e $config ]]; then
  27       config=@defaultConfig@
  28     fi;
  29
  30     tmp_config=$(mktemp)
  31     substitute $config $tmp_config \
  32       --subst-var-by vendor "$cargoDepsCopy"
  33     cat ${tmp_config} >> .cargo/config.toml
  34
  35     cat >> .cargo/config.toml <<'EOF'
  36     @cargoConfig@
  37 EOF
  38
  39     echo "Finished cargoSetupPostUnpackHook"
  40 }
  41
  42 # After unpacking and applying patches, check that the Cargo.lock matches our
  43 # src package. Note that we do this after the patchPhase, because the
  44 # patchPhase may create the Cargo.lock if upstream has not shipped one.
  45 cargoSetupPostPatchHook() {
  46     echo "Executing cargoSetupPostPatchHook"
  47
  48     cargoDepsLockfile="$cargoDepsCopy/Cargo.lock"
  49     srcLockfile="$(pwd)/${cargoRoot:+$cargoRoot/}Cargo.lock"
  50
  51     echo "Validating consistency between $srcLockfile and $cargoDepsLockfile"
  52     if ! @diff@ $srcLockfile $cargoDepsLockfile; then
  53
  54       # If the diff failed, first double-check that the file exists, so we can
  55       # give a friendlier error msg.
  56       if ! [ -e $srcLockfile ]; then
  57         echo "ERROR: Missing Cargo.lock from src. Expected to find it at: $srcLockfile"
  58         echo "Hint: You can use the cargoPatches attribute to add a Cargo.lock manually to the build."
  59         exit 1
  60       fi
  61
  62       if ! [ -e $cargoDepsLockfile ]; then
  63         echo "ERROR: Missing lockfile from cargo vendor. Expected to find it at: $cargoDepsLockfile"
  64         exit 1
  65       fi
  66
  67       echo
  68       echo "ERROR: cargoHash or cargoSha256 is out of date"
  69       echo
  70       echo "Cargo.lock is not the same in $cargoDepsCopy"
  71       echo
  72       echo "To fix the issue:"
  73       echo '1. Set cargoHash/cargoSha256 to an empty string: `cargoHash = "";`'
  74       echo '2. Build the derivation and wait for it to fail with a hash mismatch'
  75       echo '3. Copy the "got: sha256-..." value back into the cargoHash field'
  76       echo '   You should have: cargoHash = "sha256-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX=";'
  77       echo
  78
  79       exit 1
  80     fi
  81
  82     unset cargoDepsCopy
  83
  84     echo "Finished cargoSetupPostPatchHook"
  85 }
  86
  87 if [ -z "${dontCargoSetupPostUnpack-}" ]; then
  88   postUnpackHooks+=(cargoSetupPostUnpackHook)
  89 fi
  90
  91 if [ -z ${cargoVendorDir-} ]; then
  92   postPatchHooks+=(cargoSetupPostPatchHook)
  93 fi