bash functions to show maven versions

maven_versions.sh

function show_maven_parent_version # pom-file                                                        
{                                                                                                    
  xmllint --xpath "//*[local-name()='parent']/*[local-name()='version']/text()" $1 2>/dev/null       
}                                                                                                    
                                                                                                     
function show_maven_project_version # pom-file                                                       
{                                                                                                    
  xmllint --xpath "//*[local-name()='project']/*[local-name()='version']/text()" $1 2>/dev/null      
}                                                                                                    
                                                                                                     
function all_poms # no args                                                                          
{                                                                                                    
  find . -name "pom.xml" -not -path "*target*" -not -path "*bin*" -print                             
}                                                                                                    
                                                                                                     
function show_versions                                                                               
{                                                                                                    
  for pom in $(all_poms); do                                                                         
    local parent_version=$(show_maven_parent_version $pom)                                           
    local project_version=$(show_maven_project_version $pom)                                         
    if [[ -n "$parent_version" ]]; then                                                              
      printf "[parent-version ] %s = %s\n" $parent_version $pom                                      
    elif [[ -n "$project_version" ]]; then                                                           
      printf "[project-version] %s = %s\n" $project_version $pom                                     
    else                                                                                             
      printf "[not available  ] %s\n" $pom                                                           
    fi                                                                                               
  done                                                                                               
}                                                                                                    

• if you include these 3 functions into your ~/.bash_profile then you can call show_versions in any maven project
• if you call show_versions in a maven reactor project the output will show you if a module-version comes from the parent or the module itself
• you need to install http://xmlsoft.org/xmllint.html