redo python venv machinery. Allow poetry

Refs #211

Author: mxcl

.github/workflows/ci.cli.yml

@@ -10,6 +10,7 @@ jobs:
   integration-tests:
     name: ${{matrix.pkg}} (${{matrix.platform.tag}})
     strategy:
+      fail-fast: false
       matrix:
         platform:
           - os: ubuntu-latest
@@ -20,8 +21,8 @@ jobs:
         pkg:
           - stark.com/foo
           - toolchain.com
-          - pyapp.com/1
-          - pyapp.com/2
+          - pyapp.com/pip
+          - pyapp.com/poetry
           - stark.com/[email protected]
           - git-clone.com
           - pc-cmake.com
@@ -55,6 +56,7 @@ jobs:
       - run: test $(pkgx +stark.com/foo -- stark) = not_much_u
       - run: bin/bk audit
 
+
   unit-tests:
     runs-on: ubuntu-latest
     env:

bin/cmd/build

@@ -15,6 +15,7 @@ const { options, args } = await new Command()
   .name("build")
   .description("Build pkgx pantry pkgs with brewkit")
   .option("-C, --clean", "Clean everything first")
+  .option("-s, --stage", "Stage, do not run build")
   .arguments("[pkgspec]")
   .parse();
 
@@ -93,6 +94,10 @@ const script = new Path(`${config.path.build}.sh`)
 console.log('writing', script)
 script.write({text: script_content, force: true}).chmod(0o755)
 
+if (options.stage) {
+  Deno.exit(0)
+}
+
 /// run script
 await gum('build')
 

lib/porcelain/build-script.ts

@@ -17,7 +17,7 @@ export default async function(config: Config, PATH?: Path): Promise<string> {
 
   const brewkitd = new Path(new URL(import.meta.url).pathname).parent().parent().parent()
   const brewkit_PATHs = [
-    brewkitd.join("share/brewkit"),
+    brewkitd.join("libexec"),
     PATH
   ].compact(x => x?.string).join(':')
 
@@ -26,6 +26,16 @@ export default async function(config: Config, PATH?: Path): Promise<string> {
     FLAGS.push("export MACOSX_DEPLOYMENT_TARGET=11.0")
   }
 
+  const tmp = (() => {
+    switch (host().platform) {
+    case 'darwin':
+    case 'linux':
+      return `export TMPDIR="$HOME/tmp"; mkdir -p "$TMPDIR"`
+    case 'windows':
+      return `export TMP="$HOME/tmp"; export TEMP="$HOME/tmp"; mkdir -p "$TMP"`
+    }
+  })
+
   return undent`
     #!/${bash}
 
@@ -39,8 +49,9 @@ export default async function(config: Config, PATH?: Path): Promise<string> {
       set +a
 
       export PKGX="${pkgx}"
-      export SRCROOT=${config.path.build.string}
       export HOME=${config.path.home.string}
+      export SRCROOT=${config.path.build.string}
+      ${tmp()}
       if [ -n "$CI" ]; then
         export FORCE_UNSAFE_CONFIGURE=1
       fi

libexec/bkpyvenv

@@ -0,0 +1,63 @@
+#!/usr/bin/env -S pkgx +git +install bash
+
+set -eo pipefail
+
+cd "$SRCROOT"
+
+d="$(cd "$(dirname "$0")"/.. && pwd)"
+
+CMD=$1
+shift
+
+if [ $1 = '--engine=poetry' ]; then
+  ENGINE=poetry
+  shift
+fi
+
+PREFIX=$1
+shift
+
+set -x
+
+case $CMD in
+stage)
+  VERSION=$1
+
+  if [ ! -d "$SRCROOT/.git" ]; then
+    GIT_DIR="$SRCROOT/.git"
+    git init
+    git config user.name 'pkgx[bot]'
+    git config user.email '[email protected]'
+    git commit -mnil --allow-empty
+    git tag -a "$VERSION" -m "Version $VERSION" --force
+    unset GIT_DIR
+  fi
+
+  if [ "$ENGINE" = poetry ]; then
+    poetry config virtualenvs.create true
+    poetry config virtualenvs.in-project true
+  else
+    python -m venv "$PREFIX"/venv
+  fi
+  ;;
+seal)
+  PYTHON=$(python --version | sed -n 's/Python \([0-9]\+\.[0-9]\+\).*/\1/p')
+
+  if [ "$ENGINE" = poetry ]; then
+    # FIXME is there a more efficient way to do this?
+    # FIXME the glob is unfortunate
+    poetry build -f sdist
+    tar xzf \
+      dist/*.tar.gz \
+      --directory "$SRCROOT"/.venv/lib/python$PYTHON/site-packages \
+      --strip-components=1
+    mkdir -p "$PREFIX"
+    mv "$SRCROOT"/.venv "$PREFIX/venv"
+  fi
+
+  for cmd in $@; do
+    install -D "$d/share/brewkit/python-venv-stub.py" $PREFIX/bin/$cmd
+    sed -i "1s|.*|#!/usr/bin/env -S pkgx python@$PYTHON|" $PREFIX/bin/$cmd
+  done
+  ;;
+esac