Homebrew formula release (#183)

* Ability to specify pg_config from env variables

* Add homebrew release action

* Update README

.github/workflows/build.yaml

@@ -71,7 +71,7 @@ jobs:
       - name: Create source code archive with submodules
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.create_release }}
         run: |
-          find ./ -name '.git*' -exec rm -rv {} \; || true
+          find ./ -name '.git*' -exec rm -r {} \; || true
           tar -czf /tmp/lantern-v${{ steps.package.outputs.package_version }}-source.tar.gz .
       - uses: geekyeggo/delete-artifact@v2
         with:
@@ -81,9 +81,23 @@ jobs:
         id: create_release
         if: ${{ github.event_name == 'workflow_dispatch' && inputs.create_release }}
         with:
-          name: LanternDB v${{ steps.package.outputs.package_version }}
+          name: Lantern v${{ steps.package.outputs.package_version }}
           tag_name: v${{ steps.package.outputs.package_version }}
           files: |
             ${{ steps.package.outputs.package_path }}
             /tmp/lantern-v${{ steps.package.outputs.package_version }}-source.tar.gz
           generate_release_notes: true
+      - name: Homebrew release
+        uses: var77/bump-homebrew-formula-action@main
+        if: ${{ github.event_name == 'workflow_dispatch' && inputs.create_release }}
+        with:
+          formula-name: lantern
+          formula-path: Formula/lantern.rb
+          tag-name: v${{ steps.package.outputs.package_version }}
+          download-url: https://github.com/lanterndata/lantern/releases/download/v${{ steps.package.outputs.package_version }}/lantern-v${{ steps.package.outputs.package_version }}-source.tar.gz
+          homebrew-tap: lanterndata/homebrew-lantern
+          commit-message: |
+            {{formulaName}} {{version}}
+          base-branch: main
+        env:
+          COMMITTER_TOKEN: ${{ secrets.HOMEBREW_COMMITTER_TOKEN }}

README.md

@@ -27,6 +27,13 @@ cd build
 cmake ..
 make install
 ```
+
+To install Lantern using `homebrew`:
+```
+brew tap lanterndata/lantern
+brew install lantern && lantern_install
+```
+
 You can also install Lantern on top of PostgreSQL from our [precompiled binaries](https://github.com/lanterndata/lantern/releases) via a single `make install`.
 
 Alternatively, you can use Lantern in one click using [Replit](https://replit.com/@lanterndata/lantern-playground#.replit).

cmake/FindPostgreSQL.cmake

@@ -48,10 +48,14 @@
 # Define additional search paths for root directories.
 set(PostgreSQL_ROOT_DIRECTORIES ENV PGROOT ENV PGPATH ${PostgreSQL_ROOT})
 
-find_program(
-  PG_CONFIG pg_config
-  PATHS ${PostgreSQL_ROOT_DIRECTORIES}
-  PATH_SUFFIXES bin)
+if (DEFINED ENV{PG_CONFIG})
+  set(PG_CONFIG "$ENV{PG_CONFIG}")
+else()
+  find_program(
+    PG_CONFIG pg_config
+    PATHS ${PostgreSQL_ROOT_DIRECTORIES}
+    PATH_SUFFIXES bin)
+endif()
 
 if(NOT PG_CONFIG)
   message(FATAL_ERROR "Could not find pg_config")
@@ -156,4 +160,4 @@ if(PostgreSQL_FOUND)
   message(
     STATUS "PostgreSQL shared linker options: ${PostgreSQL_SHARED_LINK_OPTIONS}"
   )
-endif()
+endif()