Partial migration of config code generation to C.

Parse enough of config.yaml to auto-generate config.auto.h and config.auto.c.

This commit implements most of the infrastructure needed to migrate the rest of the build code to C, but each set of auto-generated files will present its own challenges.

The build is now dependent on libyaml. At this point there is no need for a hard requirement, but that will come soon so it seems better to add the dependency now.

.cirrus.yml

@@ -15,7 +15,7 @@ freebsd_12_task:
     cpu: 4
     memory: 4G
 
-  install_script: pkg install -y bash git postgresql-libpqxx pkgconf libxml2 gmake perl5 p5-YAML-LibYAML rsync
+  install_script: pkg install -y bash git postgresql-libpqxx pkgconf libxml2 gmake perl5 libyaml p5-YAML-LibYAML rsync
 
   script:
     - perl ${CIRRUS_WORKING_DIR}/test/test.pl --no-gen --make-cmd=gmake --vm=none --vm-max=2 --no-coverage --no-valgrind --module=command --test=backup
@@ -30,12 +30,12 @@ macos_catalina_task:
     image: catalina-xcode
 
   environment:
-    LDFLAGS: -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/libpq/lib -L/usr/local/opt/libxml2/lib
-    CPPFLAGS: -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/libpq/include -I/usr/local/opt/libxml2/include/libxml2
+    LDFLAGS: -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/libpq/lib -L/usr/local/opt/libxml2/lib -L/usr/local/opt/libyaml/lib
+    CPPFLAGS: -I/usr/local/opt/openssl@1.1/include -I/usr/local/opt/libpq/include -I/usr/local/opt/libxml2/include/libxml2 -I/usr/local/opt/libyaml/include
     PERL5LIB: /usr/local/opt/perl5/lib/perl5
 
   install_script:
-    - brew install -q openssl@1.1 libpq libxml2 cpanm
+    - brew install -q openssl@1.1 libpq libxml2 libyaml cpanm
     - cpanm --local-lib=/usr/local/opt/perl5 install YAML::XS
 
   script:

.github/workflows/test.yml

@@ -73,6 +73,9 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v2
 
+      - name: Install Packages
+        run: sudo apt-get install -y --no-install-recommends libyaml-dev
+
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v1
         with:

CONTRIBUTING.md

@@ -21,7 +21,7 @@ pgbackrest-dev => Install development tools
 sudo apt-get install rsync git devscripts build-essential valgrind lcov autoconf \
        autoconf-archive libssl-dev zlib1g-dev libxml2-dev libpq-dev pkg-config \
        libxml-checker-perl libyaml-perl libdbd-pg-perl liblz4-dev liblz4-tool \
-       zstd libzstd-dev bzip2 libbz2-dev
+       zstd libzstd-dev bzip2 libbz2-dev libyaml-dev
 ```
 
 Some unit tests and all the integration tests require Docker. Running in containers allows us to simulate multiple hosts, test on different distributions and versions of PostgreSQL, and use sudo without affecting the host system.

build/lib/pgBackRestBuild/Config/BuildHelp.pm

@@ -20,7 +20,7 @@ use pgBackRestDoc::Common::String;
 use pgBackRestDoc::ProjectInfo;
 
 use pgBackRestBuild::Build::Common;
-use pgBackRestBuild::Config::Build;
+use pgBackRestBuild::Config::BuildParse;
 use pgBackRestBuild::Config::Data;
 
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