Add Dev Container Configuration Files (#7)

.devcontainer/julia-base/conf/user/etc/skel/.julia/config/startup.jl

@@ -0,0 +1,45 @@
+println("Executing user-specific startup file (", @__FILE__, ")...")
+
+# https://github.com/julia-vscode/julia-vscode/issues/3304
+project = (Base.JLOptions().project != C_NULL ?
+    unsafe_string(Base.JLOptions().project) :
+    get(ENV, "JULIA_PROJECT", nothing))
+if !isnothing(project)
+    Pkg.activate(; io=devnull)
+end
+
+try
+    using Revise
+    println("Revise started")
+catch e
+    @warn "Error initializing Revise" exception=(e, catch_backtrace())
+end
+
+if !isnothing(project) &&
+    # https://github.com/julia-vscode/julia-vscode/issues/3304
+    !startswith(Base.load_path_expand(Base.LOAD_PATH[end]), project)
+
+    if startswith(project, "@")
+        if startswith(project, "@.")
+            if isnothing(Base.current_project())
+                Pkg.activate(joinpath("$(ENV["HOME"])", ".julia",
+                        "environments", "v$(VERSION.major).$(VERSION.minor)"))
+            else
+                Pkg.activate(Base.current_project(); io=devnull)
+            end
+        else
+            Pkg.activate(Base.load_path_expand(project); io=devnull)
+        end
+    else
+        Pkg.activate(abspath(expanduser(project)); io=devnull)
+    end
+else
+    if isfile(joinpath(pwd(), "Project.toml")) &&
+        isfile(joinpath(pwd(), "Manifest.toml"))
+
+        Pkg.activate(pwd())
+    else
+        Pkg.activate(joinpath("$(ENV["HOME"])", ".julia", "environments",
+                "v$(VERSION.major).$(VERSION.minor)"))
+    end
+end

.devcontainer/julia-base/conf/user/etc/skel/.julia/config/startup_ijulia.jl

@@ -0,0 +1,3 @@
+if !in(MIME("application/pdf"), IJulia.ijulia_mime_types)
+    IJulia.register_mime(MIME("application/pdf"))
+end

.devcontainer/julia-base/scripts/usr/local/bin/postStartCommand.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# Copyright (c) 2023 b-data GmbH.
+# Distributed under the terms of the MIT License.
+
+set -e
+
+mkdir -p "${HOME}/.julia/config"
+
+# Copy user-specific startup files if home directory is bind mounted
+if [ ! -f "${HOME}/.julia/config/startup_ijulia.jl" ]; then
+  cp -a /etc/skel/.julia/config/startup_ijulia.jl \
+    "${HOME}/.julia/config"
+fi
+if [ ! -f "${HOME}/.julia/config/startup.jl" ]; then
+  cp -a /etc/skel/.julia/config/startup.jl \
+    "${HOME}/.julia/config"
+fi