Avoid attempting to test pkg server on Julia <1.7

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 4 to 5.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](https://github.com/actions/setup-python/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -0,0 +1,12 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+  # Keep dependencies for GitHub Actions up-to-date
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'daily'

.github/workflows/backup.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Configure cache
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: |
             ${{ env.GITHUB_WORKSPACE }}
@@ -20,7 +20,7 @@ jobs:
           key: ${{ runner.os }}
 
       - name: Install the correct Python version
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: '3.x'
 

.github/workflows/ci.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - "main"
-      - "master"
     paths-ignore:
       - "README.md"
       - "LICENSE"
@@ -17,10 +16,11 @@ jobs:
   test:
     runs-on: ${{ matrix.os }}
     strategy:
-      fail-fast: false
+      fail-fast: ${{ github.event_name == 'pull_request' }}
       matrix:
         version:
           - "1.0"
+          - "1.6" # Long-term support (LTS) release of Julia
           - "1" # automatically expands to the latest stable 1.x release of Julia
           - nightly
         os:
@@ -33,14 +33,19 @@ jobs:
         pkg-server:
           - ""
           - "pkg.julialang.org"
-        # 32-bit Julia binaries are not available on macOS
         exclude:
+          # 32-bit Julia binaries are not available on macOS
           - os: macOS-latest
             arch: x86
+          # Only Julia 1.7+ can use the package server
+          - version: "1.0"
+            pkg-server: "pkg.julialang.org"
+          - version: "1.6"
+            pkg-server: "pkg.julialang.org"
 
     steps:
       - name: Checkout Example.jl
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           repository: julia-actions/Example.jl
 
@@ -49,7 +54,7 @@ jobs:
         shell: bash
 
       - name: Checkout julia-buildpkg
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           path: ./.github/actions/julia-buildpkg
 
@@ -58,26 +63,28 @@ jobs:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
 
-      - uses: actions/cache@v1
-        env:
-          cache-name: cache-artifacts
-        with:
-          path: ~/.julia/artifacts
-          key: ${{ runner.os }}-test-${{ env.cache-name }}-${{ hashFiles('**/Project.toml') }}
-          restore-keys: |
-            ${{ runner.os }}-test-${{ env.cache-name }}-
-            ${{ runner.os }}-test-
-            ${{ runner.os }}-
-
       - uses: ./.github/actions/julia-buildpkg
+        with:
+          ignore-no-cache: true
+          localregistry: |
+            https://github.com/JuliaRegistries/General.git
         env:
           JULIA_PKG_SERVER: ${{ matrix.pkg-server }}
 
+      # When using the Pkg server the `Pkg.Registry.add("General")` will add the General registry
+      # via Pkg servers. Using `localregistry` to clone the General registry via HTTPS should be
+      # skipped.
+      - name: Test skipping registry cloning of duplicate repos
+        if: ${{ matrix.pkg-server == 'pkg.julialang.org' }}
+        shell: bash
+        run: |
+          ! test -d $HOME/.julia/registries/General
+
       - uses: julia-actions/julia-runtest@v1
 
       - uses: julia-actions/julia-processcoverage@v1
 
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v3
         with:
           file: lcov.info
 

README.md

@@ -43,3 +43,29 @@ is already set. If you want another registry flavor (i.e. `conservative`) this
 should be defined in the `env:` section of the relevant workflow or step. See
 [Registry flavors](https://pkgdocs.julialang.org/dev/registries/#Registry-flavors)
 for more information.
+
+### Adding Local Registries
+
+Personal registries, e.g. created with [LocalRegistry.jl](https://github.com/GunnarFarneback/LocalRegistry.jl), can be added to the CI using the `localregistry` input option. If the personal registry as well as packages needed in the current project are public, no additional setup is required if the registry url is specified in https-format.
+
+If the registry contains private packages, or is itself private, the ssh protocol should to be used. The user has to provide the corresponding private SSH-keys to the `ssh-agent` to access packages and registry. This can be conveniently done using the [webfactory/ssh-agent](https://github.com/webfactory/ssh-agent) action. A snippet illustrating the usage of (private) personal registries is shown below
+
+```yaml
+...   
+      # Adding private SSH keys (only necessary for accessing private packages and/or 
+      # when providing Registry-link in ssh format)
+      - uses: webfactory/ssh-agent@v0.8.0
+        with:
+          ssh-private-key: |
+            ${{ secrets.PRIVATE_DEPLOY_KEY }}
+            ${{ secrets.PRIVATE_DEPLOY_KEY2 }}
+      - uses: julia-actions/julia-buildpkg@v1
+        with:
+          localregistry: |
+            https://github.com/username/PersonalRegistry.git
+            git@github.com:username2/PersonalRegistry2.git
+          git_cli: false # = JULIA_PKG_USE_CLI_GIT. Options: true | false (default)
+...
+```
+
+For Julia 1.7 and above, the `git_cli` option can be used to set the `JULIA_PKG_USE_CLI_GIT` [environment flag](https://docs.julialang.org/en/v1/manual/environment-variables/), for additional control of the SSH configuration used by `Pkg` to add/dev packages.

action.yml

@@ -13,6 +13,17 @@ inputs:
   precompile:
     description: 'Whether to allow auto-precompilation (via the `JULIA_PKG_PRECOMPILE_AUTO` env var). Options: yes | no. Default value: no.'
     default: 'no'
+  localregistry:
+    description: 'Add local registries hosted on GitHub. Specified by providing the url (https/ssh) to the repositories as a newline (\n) seperated list.
+                  User is responsible for setting up the necessary SSH-Keys to access the repositories if necessary.'
+    default: ''
+  git_cli:
+    description: 'Determine if Pkg uses the cli git executable (Julia >= 1.7). Might be necessary for more complicated SSH setups.
+                  Options: true | false. Default : false'
+    default: 'false'
+  ignore-no-cache:
+    description: 'Whether to ignore if there appears to be no depot caching. Silences an action notice recommending `julia-actions/cache`.'
+    default: 'false'
 
 runs:
   using: 'composite'
@@ -21,9 +32,46 @@ runs:
     run: echo "JULIA_PKG_SERVER_REGISTRY_PREFERENCE=${JULIA_PKG_SERVER_REGISTRY_PREFERENCE:-eager}" >> ${GITHUB_ENV}
     shell: bash
   - run: |
+      if "${{ inputs.ignore-no-cache }}" == "false" && !isdir(DEPOT_PATH[1])
+          println("::notice title=[julia-buildpkg] Caching of the julia depot was not detected ::Consider using `julia-actions/cache` to speed up runs https://github.com/julia-actions/cache. To ignore, set input `ignore-no-cache: true` ")
+      end
       import Pkg
-      VERSION >= v"1.5-" && Pkg.Registry.add("General")
+
+      # Determine if Pkg uses git-cli executable instead of LibGit2
+      VERSION >= v"1.7-" && (ENV["JULIA_PKG_USE_CLI_GIT"] = ${{ inputs.git_cli }})
+
+      if VERSION < v"1.7-" && ${{ inputs.git_cli }} == true
+          printstyled("::notice::JULIA_PKG_USE_CLI_GIT requires Julia >= 1.7. Using default LibGit2 git-interface instead! \n"; color = :yellow)
+      end
+
+      if VERSION >= v"1.5-"
+          function reachable_registries()
+              return if VERSION >= v"1.7-"
+                  Pkg.Registry.reachable_registries()
+              else
+                  [(; name=r.name, repo=r.url) for r in Pkg.Types.collect_registries()]
+              end
+          end
+
+          if !any(r -> r.name == "General", reachable_registries())
+              Pkg.Registry.add("General")
+          end
+
+          # If provided add local registries
+          if !isempty(ENV["LOCAL_REGISTRY"])
+              local_repos = split(ENV["LOCAL_REGISTRY"], "\n"; keepempty=false) .|> string
+              for repo_url in local_repos
+                  # https://github.com/JuliaLang/Pkg.jl/issues/3753
+                  if !any(r -> r.repo == repo_url, reachable_registries())
+                      Pkg.Registry.add(Pkg.RegistrySpec(; url = repo_url))
+                  end
+              end
+          end
+      end
+
       VERSION >= v"1.1.0-rc1" ? retry(Pkg.build)(verbose=true) : retry(Pkg.build)()
     shell: julia --color=yes --project=${{ inputs.project }} {0}
     env:
       JULIA_PKG_PRECOMPILE_AUTO: "${{ inputs.precompile }}"
+      GITHUB_TOKEN: ${{ github.token }}
+      LOCAL_REGISTRY: ${{ inputs.localregistry }}