Update CI to 2024.12 spec, update README

.github/workflows/ci.yml

@@ -18,6 +18,10 @@ on:
       - feature/**
       - fix/**
       - pr/**
+    paths-ignore:
+      - LICENSE
+      - meta/**
+      - README.md
 
 concurrency:
   group: ${{format('{0}:{1}', github.repository, github.ref)}}
@@ -29,8 +33,7 @@ env:
   B2_CI_VERSION: 1
   B2_VARIANT: debug,release
   B2_LINK: shared,static
-  LCOV_BRANCH_COVERAGE: 1
-  CODECOV_NAME: Github Actions
+  LCOV_BRANCH_COVERAGE: 0
 
 jobs:
   posix:
@@ -66,7 +69,8 @@ jobs:
           - { compiler: clang-14,  cxxstd: '11,14,17,20',    os: ubuntu-22.04,  install: 'clang-14 g++-12', gcc_toolchain: 12 }
           - { compiler: clang-15,  cxxstd: '11,14,17,20',    os: ubuntu-22.04,  install: 'clang-15 g++-12', gcc_toolchain: 12 }
           - { compiler: clang-16,  cxxstd: '11,14,17,20,2b', os: ubuntu-24.04 }
-          - { compiler: clang-17,  cxxstd: '11,14,17,20,23', os: ubuntu-24.04 }
+          # https://github.com/llvm/llvm-project/issues/59827: disabled 2b/23 for clang-17 with libstdc++13 in 24.04
+          - { compiler: clang-17,  cxxstd: '11,14,17,20',    os: ubuntu-24.04 }
           - { compiler: clang-18,  cxxstd: '11,17,20,23,2c', os: ubuntu-24.04 }
 
           # linux, libc++
@@ -107,7 +111,7 @@ jobs:
                 for i in {1..${NET_RETRY_COUNT:-3}}; do sudo -E add-apt-repository -y ppa:git-core/ppa && break || sleep 10; done
                 apt-get -o Acquire::Retries=$NET_RETRY_COUNT update
                 osver=$(lsb_release -sr | cut -f1 -d.)
-                pkgs="g++ git"
+                pkgs="g++ git xz-utils"
                 # Ubuntu 22+ has only Python 3 in the repos
                 if [ -n "$osver" ] && [ "$osver" -ge "22" ]; then
                   pkgs+=" python-is-python3 libpython3-dev"
@@ -121,52 +125,26 @@ jobs:
                 echo "B2_USE_CCACHE=0" >> $GITHUB_ENV
             fi
             git config --global pack.threads 0
-            if [[ "${{matrix.container}}" == "ubuntu:16.04" ]] || [[ "${{matrix.container}}" == "ubuntu:18.04" ]]; then
-              # Ubuntu 16/18 can't run Node 20, so stick to older actions: https://github.com/actions/checkout/issues/1590
-              echo "GHA_USE_NODE_20=false" >> $GITHUB_ENV
-              echo "ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true" >> $GITHUB_ENV
-            else
-              echo "GHA_USE_NODE_20=true" >> $GITHUB_ENV
+            if [[ "${{matrix.container}}" == "ubuntu:1"* ]]; then
+              # Node 20 doesn't work with Ubuntu 16/18  glibc: https://github.com/actions/checkout/issues/1590
+              curl -sL https://archives.boost.io/misc/node/node-v20.9.0-linux-x64-glibc-217.tar.xz | tar -xJ --strip-components 1 -C /node20217
             fi
 
-      - uses: actions/checkout@v3
-        if: env.GHA_USE_NODE_20 == 'false'
-        with:
-          # For coverage builds fetch the whole history, else only 1 commit using a 'fake ternary'
-          fetch-depth: ${{ matrix.coverage && '0' || '1' }}
       - uses: actions/checkout@v4
-        if: env.GHA_USE_NODE_20 == 'true'
         with:
           # For coverage builds fetch the whole history, else only 1 commit using a 'fake ternary'
           fetch-depth: ${{ matrix.coverage && '0' || '1' }}
 
-      - name: Cache ccache
-        uses: actions/cache@v3
-        if: env.B2_USE_CCACHE && env.GHA_USE_NODE_20 == 'false'
-        with:
-          path: ~/.ccache
-          key: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-${{github.sha}}
-          restore-keys: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-
-
       - name: Cache ccache
         uses: actions/cache@v4
-        if: env.B2_USE_CCACHE && env.GHA_USE_NODE_20 == 'true'
+        if: env.B2_USE_CCACHE
         with:
           path: ~/.ccache
           key: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-${{github.sha}}
           restore-keys: ${{matrix.os}}-${{matrix.container}}-${{matrix.compiler}}-
 
-      - name: Fetch Boost.CI
-        uses: actions/checkout@v3
-        if: env.GHA_USE_NODE_20 == 'false'
-        with:
-          repository: boostorg/boost-ci
-          ref: master
-          path: boost-ci-cloned
-
       - name: Fetch Boost.CI
         uses: actions/checkout@v4
-        if: env.GHA_USE_NODE_20 == 'true'
         with:
           repository: boostorg/boost-ci
           ref: master
@@ -181,8 +159,8 @@ jobs:
       - name: Install packages
         if: startsWith(matrix.os, 'ubuntu')
         run: |
-            SOURCE_KEYS=(${{join(matrix.source_keys, ' ')}})
-            SOURCES=(${{join(matrix.sources, ' ')}})
+            SOURCE_KEYS=("${{join(matrix.source_keys, '" "')}}")
+            SOURCES=("${{join(matrix.sources, '" "')}}")
             # Add this by default
             SOURCE_KEYS+=('http://keyserver.ubuntu.com/pks/lookup?op=get&search=0x1E9377A2BA9EF27F')
             SOURCES+=(ppa:ubuntu-toolchain-r/test)
@@ -248,21 +226,11 @@ jobs:
         if: '!matrix.coverity'
         run: ci/build.sh
 
-      - name: Collect coverage
+      - name: Upload coverage
         if: matrix.coverage
         run: ci/codecov.sh "upload"
         env:
-          BOOST_CI_CODECOV_IO_UPLOAD: skip
-
-      - name: Upload coverage
-        if: matrix.coverage
-        uses: codecov/codecov-action@v4
-        with:
-          disable_search: true
-          file: coverage.info
-          name: Github Actions
-          token: ${{secrets.CODECOV_TOKEN}}
-          verbose: true
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
 
       - name: Run coverity
         if: matrix.coverity && github.event_name == 'push' && (github.ref_name == 'develop' || github.ref_name == 'master')
@@ -326,11 +294,12 @@ jobs:
 
       - name: Upload coverage
         if: matrix.coverage
-        uses: codecov/codecov-action@v4
+        uses: codecov/codecov-action@v5
         with:
           disable_search: true
-          file: __out/cobertura.xml
-          name: Github Actions
+          fail_ci_if_error: true
+          files: __out/cobertura.xml
+          name: github-actions
           token: ${{secrets.CODECOV_TOKEN}}
           verbose: true