79 lines
2.5 KiB
Bash
79 lines
2.5 KiB
Bash
# Run a builder, flip exit code, save log and fix outputs
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#
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# Sub-goals:
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# - Delegate to another original builder passed via args
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# - Save the build log to output for further checks
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# - Make the derivation succeed if the original builder fails
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# - Make the derivation fail if the original builder returns exit code 0
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#
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# Requirements:
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# This runs before, without and after stdenv. Do not modify the environment;
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# especially not before invoking the original builder. For example, use
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# "@" substitutions instead of PATH.
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# Do not export any variables.
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# Stricter bash
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set -eu
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# ------------------------
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# Run the original builder
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echo "testBuildFailure: Expecting non-zero exit from builder and args: ${*@Q}"
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("$@" 2>&1) | @coreutils@/bin/tee $TMPDIR/testBuildFailure.log \
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| while IFS= read -r ln; do
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echo "original builder: $ln"
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done
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r=${PIPESTATUS[0]}
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if [[ $r = 0 ]]; then
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echo "testBuildFailure: The builder did not fail, but a failure was expected!"
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exit 1
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fi
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echo "testBuildFailure: Original builder produced exit code: $r"
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# -----------------------------------------
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# Write the build log to the default output
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# Source structured attrs as per nixpkgs/pkgs/stdenv/generic/source-stdenv.sh
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#
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# We need this so that we can read $outputs when `__structuredAttrs` is enabled
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#
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# NOTE: This MUST be done after the original builder has finished!
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# Otherwise we could pollute its environment.
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if [ -e "${NIX_ATTRS_SH_FILE:-}" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi
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# Variables injected by replaceVars
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#
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# `$outputs` is unordered when `__structuredAttrs` is enabled,
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# so we use `replaceVars` to pass in an ordered `$outputNames` array
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@vars@
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declare -a outputPaths
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for name in "${outputNames[@]}"; do
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# Either dereference $name, or access $outputs[] associative array
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outputPath=${!name:-${outputs[$name]}}
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outputPaths+=( "$outputPath" )
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done
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defOutPath=${outputPaths[0]}
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if [[ ! -d $defOutPath ]]; then
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if [[ -e $defOutPath ]]; then
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@coreutils@/bin/mv $defOutPath $TMPDIR/out-node
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@coreutils@/bin/mkdir $defOutPath
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@coreutils@/bin/mv $TMPDIR/out-node $defOutPath/result
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fi
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fi
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@coreutils@/bin/mkdir -p $defOutPath
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@coreutils@/bin/mv $TMPDIR/testBuildFailure.log $defOutPath/testBuildFailure.log
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echo $r >$defOutPath/testBuildFailure.exit
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# ------------------------------------------------------
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# Put empty directories in place for any missing outputs
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for outputPath in "${outputPaths[@]}"; do
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if [[ ! -e "${outputPath}" ]]; then
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@coreutils@/bin/mkdir "${outputPath}";
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fi
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done
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