thonny-bin: add package (5.0.0-1)

thonny-bin/pkg.sh

@@ -0,0 +1,102 @@
+# thonny-bin - Thonny (https://github.com/thonny/thonny), a Python IDE for
+# beginners.
+#
+# Since 5.0 upstream ships no prebuilt Linux bundle anymore - the official
+# installer script just creates a venv from the system Python and
+# pip-installs thonny plus a pinned set of extras. A venv tied to the system
+# Python would silently break on every Arch Python minor bump, so
+# build_artifact() instead bundles a relocatable standalone CPython
+# (astral-sh/python-build-standalone, tkinter included) into /opt/thonny-bin
+# and pip-installs into that, mirroring the dependency pins of upstream's
+# installer script. The install tree is published as a GitHub release asset
+# of this repository, which the PKGBUILD then uses.
+
+UPSTREAM_REPO="thonny/thonny"
+
+# Series of the bundled CPython; bump deliberately (thonny 5.x supports
+# Python 3.9-3.15).
+PYTHON_SERIES="3.13"
+
+BUILD_DEPS=()
+
+latest_version() {
+  # gh instead of plain curl: authenticated API calls, so shared-IP rate
+  # limits on the CI runners can't bite.
+  gh api "repos/$UPSTREAM_REPO/releases/latest" --jq '.tag_name' | sed 's/^v//'
+}
+
+# build_artifact <version> <output-file>
+build_artifact() {
+  local ver="$1" outfile="$2"
+  local workdir root prefix py
+  workdir="$(mktemp -d)"
+  root="$workdir/root"
+  prefix="$root/opt/thonny-bin"
+  mkdir -p "$prefix"
+
+  gh release download -R astral-sh/python-build-standalone \
+    --pattern "cpython-${PYTHON_SERIES}.*-x86_64-unknown-linux-gnu-install_only_stripped.tar.gz" \
+    --dir "$workdir"
+  tar -xzf "$workdir"/cpython-*.tar.gz -C "$workdir"
+  cp -a "$workdir/python/." "$prefix/"
+  py="$prefix/bin/python3"
+
+  # Upstream's installer script is the authority on which extra packages
+  # (and pins) belong to a release - parse its pip install line instead of
+  # hardcoding a list that would go stale.
+  curl -sfL "https://github.com/$UPSTREAM_REPO/releases/download/v$ver/thonny-$ver.bash" \
+    -o "$workdir/installer.bash"
+  local extras=()
+  mapfile -t extras < <(grep -m1 -- "-m pip install '" "$workdir/installer.bash" \
+    | grep -oP "'[^']*'" | sed "s/^'//; s/'\$//")
+  if [[ ${#extras[@]} -eq 0 ]]; then
+    echo "thonny-bin: could not parse the extras list from the installer script" >&2
+    return 1
+  fi
+
+  "$py" -m pip install --no-cache-dir --no-compile "${extras[@]}" "thonny==$ver"
+
+  # pip wrote the staging path into the script shebangs; point them at the
+  # final install location.
+  local f
+  for f in "$prefix/bin/"*; do
+    [[ -f "$f" && ! -L "$f" && "$(head -c 2 "$f")" == '#!' ]] || continue
+    sed -i "1s|$prefix|/opt/thonny-bin|" "$f"
+  done
+
+  # Precompile with the final paths recorded in the .pyc files - users can't
+  # write __pycache__ under /opt at runtime. Some packages ship
+  # intentionally uncompilable files, hence the || true.
+  "$py" -m compileall -q -s "$root" "$prefix/lib" || true
+
+  local sitepkg
+  sitepkg="$("$py" -c 'import os, thonny; print(os.path.dirname(thonny.__file__))')"
+
+  install -d "$root/usr/bin" "$root/usr/share/applications" \
+    "$root/usr/share/pixmaps" "$root/usr/share/licenses/thonny-bin"
+  ln -s /opt/thonny-bin/bin/thonny "$root/usr/bin/thonny"
+  cp "$sitepkg/res/thonny.png" "$root/usr/share/pixmaps/thonny.png"
+  curl -sfL "https://raw.githubusercontent.com/$UPSTREAM_REPO/v$ver/LICENSE.txt" \
+    -o "$root/usr/share/licenses/thonny-bin/LICENSE.txt"
+
+  # Mirrors the launcher that upstream's installer script generates.
+  cat > "$root/usr/share/applications/thonny.desktop" <<'EOF'
+[Desktop Entry]
+Type=Application
+Name=Thonny
+GenericName=Python IDE
+Comment=Python IDE for beginners
+Exec=/opt/thonny-bin/bin/thonny %F
+Icon=thonny
+StartupWMClass=Thonny
+Terminal=false
+Categories=Development;IDE;
+Keywords=programming;education;
+MimeType=text/x-python;
+EOF
+
+  tar --zstd --sort=name --owner=0 --group=0 --numeric-owner --mtime='@0' \
+      -cf "$outfile" -C "$root" opt usr
+
+  rm -rf "$workdir"
+}