Fix packagecompile CI hang (#55)

enforce single threaded call of PackageCompiler.create_app
see JuliaLang/PackageCompiler.jl#990

* change code fold

* Fold line and not block

* single line command

* chmod all read julia

* change project dir

* add chown

* enforce pull before run

* add fold

* Fix stuck compiling nonincremental system image by enforcing single thread

* Ensure files are always owned by user

* Unset env var JULIA_NUM_THREADS

* do not depend on dir existence for chown

Author: danlooo

.github/workflows/PackageCompiler.yml

@@ -30,10 +30,11 @@ jobs:
           cache-to: type=registry,ref=danlooo/julia_package_compiler_dev:cache,mode=max
 
       - name: Run Docker container
-        run: docker run \
-          -v $PWD:/work \
-          -u $(id -u ${USER}):$(id -g ${USER}) \
-          danlooo/julia_package_compiler_dev:latest /work
+        run: >
+          sudo chown -R $USER:$USER . &&
+          docker pull danlooo/julia_package_compiler_dev:latest &&
+          docker run -v $PWD:/work danlooo/julia_package_compiler_dev:latest /work &&
+          sudo chown -R $USER:$USER .
 
       - name: Upload binaries
         uses: actions/upload-artifact@v4

packagecompiler/Dockerfile

@@ -1,11 +1,13 @@
 FROM julia:1.11.3-bookworm
 
 WORKDIR /app
-ENV JULIA_NUM_THREADS=auto
+# unset threads see https://github.com/JuliaLang/PackageCompiler.jl/issues/990
+ENV JULIA_NUM_THREADS=
 ENV JULIA_DEPOT_PATH=/.julia
 
 RUN apt-get update && apt-get install -y build-essential
-COPY Project.toml /.julia/environments/v1.11/
+COPY Project.toml ./
 RUN julia --project -e 'using Pkg; Pkg.instantiate(); Pkg.status()'
+RUN chmod -R +r /.julia
 COPY run.jl ./
 ENTRYPOINT [ "./run.jl" ]

packagecompiler/run.jl

@@ -1,8 +1,8 @@
-#!/usr/bin/env -S julia --threads=auto
+#!/usr/bin/env -S julia --project=/app
 
 using PackageCompiler
 
-dir = ARGS
+dir = ARGS[1]
 
 PackageCompiler.create_app(dir, "$dir/packagecompiler/app";
     precompile_statements_file="$dir/packagecompiler/precompile_statements.jl",