Add doxygen to build dependencies. (Required to generate user guide documentation.)

Author: mcserep

.github/workflows/ci.yml

@@ -46,7 +46,7 @@ jobs:
         run: >
           sudo apt-get install -y git cmake make g++ gcc-7-plugin-dev libboost-all-dev
           llvm-10-dev clang-10 libclang-10-dev default-jdk libssl1.0-dev libgraphviz-dev
-          libmagic-dev libgit2-dev ctags libgtest-dev npm libldap2-dev
+          libmagic-dev libgit2-dev ctags doxygen libgtest-dev npm libldap2-dev
 
       - name: Remove default Postgresql Ubuntu 18
         if: ${{ matrix.os == 'ubuntu-18.04' && matrix.db == 'postgresql' }}
@@ -131,7 +131,7 @@ jobs:
         run: >
           sudo apt-get install -y git cmake make g++ libboost-all-dev llvm-10-dev clang-10
           libclang-10-dev odb libodb-dev thrift-compiler libthrift-dev default-jdk libssl-dev
-          libgraphviz-dev libmagic-dev libgit2-dev ctags libgtest-dev npm libldap2-dev
+          libgraphviz-dev libmagic-dev libgit2-dev ctags doxygen libgtest-dev npm libldap2-dev
 
       - name: Install Postgresql Ubuntu 20
         if: ${{ matrix.os == 'ubuntu-20.04' && matrix.db == 'postgresql' }}

doc/deps.md

@@ -36,6 +36,7 @@ be installed from the official repository of the given Linux distribution.
 - **`libgit2-dev`**: For compiling Git plugin in CodeCompass.
 - **`npm`**: For handling JavaScript dependencies for CodeCompass web GUI.
 - **`ctags`**: For search parsing.
+- **`doxygen`**: For documentation generation.
 - **`libgtest-dev`**: For testing CodeCompass.
   ***See [Known issues](#known-issues)!***
 - **`libldap2-dev`**: For LDAP authentication.
@@ -50,7 +51,7 @@ known issues.
 ```bash
 sudo apt install git cmake make g++ gcc-7-plugin-dev libboost-all-dev \
   llvm-10-dev clang-10 libclang-10-dev \
-  default-jdk libssl1.0-dev libgraphviz-dev libmagic-dev libgit2-dev ctags \
+  default-jdk libssl1.0-dev libgraphviz-dev libmagic-dev libgit2-dev ctags doxygen \
   libldap2-dev libgtest-dev npm
 ```
 
@@ -60,7 +61,7 @@ sudo apt install git cmake make g++ gcc-7-plugin-dev libboost-all-dev \
 sudo apt install git cmake make g++ libboost-all-dev \
   llvm-10-dev clang-10 libclang-10-dev \
   odb libodb-dev thrift-compiler libthrift-dev \
-  default-jdk libssl-dev libgraphviz-dev libmagic-dev libgit2-dev ctags \
+  default-jdk libssl-dev libgraphviz-dev libmagic-dev libgit2-dev ctags doxygen \
   libldap2-dev libgtest-dev npm
 ```
 

docker/dev/Dockerfile

@@ -11,6 +11,7 @@ RUN set -x && apt-get update -qq \
   cmake make \
   default-jdk \
   ctags \
+  doxygen \
   gcc-9 gcc-9-plugin-dev g++-9 \
   libboost-filesystem-dev \
   libboost-log-dev \