Class: Bibliothecary::Parsers::Maven

Inherits:
Object
  • Object
show all
Includes:
Analyser
Defined in:
lib/bibliothecary/parsers/maven.rb

Constant Summary collapse

GRADLE_TYPE_REGEXP =

e.g. “annotationProcessor - Annotation processors and their dependencies for source set ‘main’.”

/^(\w+)/
GRADLE_DEP_REGEXP =

e.g. “| \— com.google.guava:guava:23.5-jre (*)”

/(\+---|\\---){1}/
GRADLE_PROJECT_REGEXP =

Dependencies that are on-disk projects, eg: e.g. “-– project :api:my-internal-project” e.g. “+— my-group:my-alias:1.2.3 -> project :client (*)”

/project :(\S+)?/
GRADLE_LINE_ENDING_REGEXP =

line ending legend: © means a dependency constraint, (n) means not resolved, or (*) means resolved previously, e.g. org.springframework.boot:spring-boot-starter-web:2.1.0.M3 (*) e.g. the “(n)” in “+— my-group:my-name:1.2.3 (n)”

/(\((c|n|\*)\))$/
GRADLE_DEPENDENCY_METHODS =

Builtin methods: docs.gradle.org/current/userguide/java_plugin.html#tab:configurations Deprecated methods: docs.gradle.org/current/userguide/upgrading_version_6.html#sec:configuration_removal

%w(api compile compileClasspath compileOnly compileOnlyApi implementation runtime runtimeClasspath runtimeOnly testCompile testCompileOnly testImplementation testRuntime testRuntimeOnly)
GRADLE_VERSION_REGEXP =

Intentionally overly-simplified regexes to scrape deps from build.gradle (Groovy) and build.gradle.kts (Kotlin) files. To be truly useful bibliothecary would need full Groovy / Kotlin parsers that speaks Gradle, because the Groovy and Kotlin DSLs have many dynamic ways of declaring dependencies.

/[\w.-]+/
GRADLE_VAR_INTERPOLATION_REGEXP =

e.g. ‘$myVersion’

/\$\w+/
GRADLE_CODE_INTERPOLATION_REGEXP =

e.g. ‘$"version"’

/\$\{.*\}/
GRADLE_GAV_REGEXP =

e.g. “group:artifactId:1.2.3”

/([\w.-]+)\:([\w.-]+)(?:\:(#{GRADLE_VERSION_REGEXP}|#{GRADLE_VAR_INTERPOLATION_REGEXP}|#{GRADLE_CODE_INTERPOLATION_REGEXP}))?/
GRADLE_GROOVY_SIMPLE_REGEXP = 
/(#{GRADLE_DEPENDENCY_METHODS.join('|')})\s*\(?\s*['"]#{GRADLE_GAV_REGEXP}['"]/m
GRADLE_KOTLIN_SIMPLE_REGEXP = 
/(#{GRADLE_DEPENDENCY_METHODS.join('|')})\s*\(\s*"#{GRADLE_GAV_REGEXP}"/m
MAVEN_PROPERTY_REGEXP = 
/\$\{(.+?)\}/
MAX_DEPTH = 
5
SBT_TYPE_REGEXP =

e.g. “[info] test:”

/^\[info\]\s+([-\w]+):$/
SBT_DEP_REGEXP =

e.g. “[info] org.typelevel:spire-util_2.12”

/^\[info\]\s+(.+)$/
SBT_VERSION_REGEXP =

e.g. “[info] - 1.7.5”

/^\[info\]\s+-\s+(.+)$/
SBT_FIELD_REGEXP =

e.g. “[info] homepage: www.slf4j.org”

/^\[info\]\s+([^:]+):\s+(.+)$/
SBT_IGNORE_REGEXP =

e.g. “[info] ”

/^\[info\]\s*$/

Class Method Summary collapse

Methods included from Analyser

create_analysis, create_error_analysis, included

Class Method Details

.extract_pom_dep_info(xml, dependency, name, parent_properties = {}) ⇒ Object

TODO: it might be worth renaming parent_properties to parent_elements so that more can be inherited from the parent pom than just <properties> here (see maven.apache.org/pom.html#inheritance)



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# File 'lib/bibliothecary/parsers/maven.rb', line 366

def self.extract_pom_dep_info(xml, dependency, name, parent_properties = {})
  field = dependency.locate(name).first
  return nil if field.nil?

  value = field.nodes.first
  value = value.value if value.is_a?(Ox::CData)
  # whitespace in dependency tags should be ignored
  value = value&.strip
  match = value&.match(MAVEN_PROPERTY_REGEXP)
  if match
    return extract_property(xml, match[1], value, parent_properties)
  else
    return value
  end
end

.extract_pom_info(xml, location, parent_properties = {}) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 359

def self.extract_pom_info(xml, location, parent_properties = {})
  extract_pom_dep_info(xml, xml, location, parent_properties)
end

.extract_property(xml, property_name, value, parent_properties = {}, depth = 0) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 386

def self.extract_property(xml, property_name, value, parent_properties = {}, depth = 0)
  prop_value = property_value(xml, property_name, parent_properties)
  return value unless prop_value
  # don't resolve more than 5 levels deep to avoid potential circular references

  resolved_value = replace_value_with_prop(value, prop_value, property_name)
  # check to see if we just resolved to another property name
  match = resolved_value.match(MAVEN_PROPERTY_REGEXP)
  if match && depth < MAX_DEPTH
    depth += 1
    return extract_property(xml, match[1], resolved_value, parent_properties, depth)
  else
    return resolved_value
  end
end

.gradle_dependency_name(group, name) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 345

def self.gradle_dependency_name(group, name)
  if group.empty? && name.include?(":")
    group, name = name.split(":", 2)
  end

  # Strip comments, and single/doublequotes
  [group, name].map do |part|
    part
      .gsub(/\s*\/\/.*$/, "") # Comments
      .gsub(/^["']/, "") # Beginning single/doublequotes
      .gsub(/["']$/, "") # Ending single/doublequotes
  end.join(":")
end

.ivy_report?(file_contents) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bibliothecary/parsers/maven.rb', line 118

def self.ivy_report?(file_contents)
  doc = Ox.parse file_contents
  root = doc&.locate("ivy-report")&.first
  return !root.nil?
rescue Exception # rubocop:disable Lint/RescueException
  # We rescue exception here since native libs can throw a non-StandardError
  # We don't want to throw errors during the matching phase, only during
  # parsing after we match.
  false
end

.mapping ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 60

def self.mapping
  {
    match_filename("ivy.xml", case_insensitive: true) => {
      kind: "manifest",
      parser: :parse_ivy_manifest,
    },
    match_filename("pom.xml", case_insensitive: true) => {
      kind: "manifest",
      parser: :parse_standalone_pom_manifest,
    },
    match_filename("build.gradle", case_insensitive: true) => {
      kind: "manifest",
      parser: :parse_gradle,
    },
    match_filename("build.gradle.kts", case_insensitive: true) => {
      kind: "manifest",
      parser: :parse_gradle_kts,
    },
    match_extension(".xml", case_insensitive: true) => {
      content_matcher: :ivy_report?,
      kind: "lockfile",
      parser: :parse_ivy_report,
    },
    match_filename("gradle-dependencies-q.txt", case_insensitive: true) => {
      kind: "lockfile",
      parser: :parse_gradle_resolved,
    },
    match_filename("maven-resolved-dependencies.txt", case_insensitive: true) => {
      kind: "lockfile",
      parser: :parse_maven_resolved,
    },
    match_filename("sbt-update-full.txt", case_insensitive: true) => {
      kind: "lockfile",
      parser: :parse_sbt_update_full,
    },
    match_filename("maven-dependency-tree.txt", case_insensitive: true) => {
      kind: "lockfile",
      parser: :parse_maven_tree,
    },
  }
end

.parse_gradle(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 319

def self.parse_gradle(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  file_contents
    .scan(GRADLE_GROOVY_SIMPLE_REGEXP)                                                # match 'implementation "group:artifactId:version"'
    .reject { |(_type, group, artifactId, _version)| group.nil? || artifactId.nil? } # remove any matches with missing group/artifactId
    .map { |(type, group, artifactId, version)|
    {
      name: [group, artifactId].join(":"),
      requirement: version || "*",
      type: type,
    }
    }
end

.parse_gradle_kts(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 332

def self.parse_gradle_kts(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  file_contents
    .scan(GRADLE_KOTLIN_SIMPLE_REGEXP)                                                # match 'implementation("group:artifactId:version")'
    .reject { |(_type, group, artifactId, _version)| group.nil? || artifactId.nil? } # remove any matches with missing group/artifactId
    .map { |(type, group, artifactId, version)|
      {
        name: [group, artifactId].join(":"),
        requirement: version || "*",
        type: type,
      }
    }
end

.parse_gradle_resolved(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 154

def self.parse_gradle_resolved(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  current_type = nil

  file_contents.split("\n").map do |line|
    current_type_match = GRADLE_TYPE_REGEXP.match(line)
    current_type = current_type_match.captures[0] if current_type_match

    gradle_dep_match = GRADLE_DEP_REGEXP.match(line)
    next unless gradle_dep_match

    split = gradle_dep_match.captures[0]

    # gradle can import on-disk projects and deps will be listed under them, e.g. `+--- project :test:integration`,
    # so we treat these projects as "internal" deps with requirement of "1.0.0"
    if (project_match = line.match(GRADLE_PROJECT_REGEXP))
      # an empty project name is self-referential (i.e. a cycle), and we don't need to track the manifest's project itself, e.g. "+--- project :"
      next if project_match[1].nil?

      # project names can have colons (e.g. for gradle projects in subfolders), which breaks maven artifact naming assumptions, so just replace them with hyphens.
      project_name = project_match[1].gsub(/:/, "-")
      line = line.sub(GRADLE_PROJECT_REGEXP, "internal:#{project_name}:1.0.0")
    end

    dep = line
      .split(split)[1]
      .sub(GRADLE_LINE_ENDING_REGEXP, "")
      .sub(/ FAILED$/, "") # dependency could not be resolved (but still may have a version)
      .sub(" -> ", ":") # handle version arrow syntax
      .strip
      .split(":")

    # A testImplementation line can look like this so just skip those
    # \--- org.springframework.security:spring-security-test (n)
    next unless dep.length >= 3

    if dep.count == 6
      # get name from renamed package resolution "org:name:version -> renamed_org:name:version"
      {
        original_name: dep[0,2].join(":"),
        original_requirement: dep[2],
        name: dep[-3..-2].join(":"),
        requirement: dep[-1],
        type: current_type,
      }
    elsif dep.count == 5
      # get name from renamed package resolution "org:name -> renamed_org:name:version"
      {
        original_name: dep[0,2].join(":"),
        original_requirement: "*",
        name: dep[-3..-2].join(":"),
        requirement: dep[-1],
        type: current_type,
      }
    else
      # get name from version conflict resolution ("org:name:version -> version") and no-resolution ("org:name:version")
      {
        name: dep[0..1].join(":"),
        requirement: dep[-1],
        type: current_type,
      }
    end
  end
    .compact
    .uniq { |item| item.values_at(:name, :requirement, :type, :original_name, :original_requirement) }
end

.parse_ivy_manifest(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 106

def self.parse_ivy_manifest(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  manifest = Ox.parse file_contents
  manifest.dependencies.locate("dependency").map do |dependency|
    attrs = dependency.attributes
    {
      name: "#{attrs[:org]}:#{attrs[:name]}",
      requirement: attrs[:rev],
      type: "runtime",
    }
  end
end

.parse_ivy_report(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 129

def self.parse_ivy_report(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  doc = Ox.parse file_contents
  root = doc.locate("ivy-report").first
  raise "ivy-report document does not have ivy-report at the root" if root.nil?
  info = doc.locate("ivy-report/info").first
  raise "ivy-report document lacks <info> element" if info.nil?
  type = info.attributes[:conf]
  type = "unknown" if type.nil?
  modules = doc.locate("ivy-report/dependencies/module")
  modules.map do |mod|
    attrs = mod.attributes
    org = attrs[:organisation]
    name = attrs[:name]
    version = mod.locate("revision").first&.attributes[:name]

    next nil if org.nil? or name.nil? or version.nil?

    {
      name: "#{org}:#{name}",
      requirement: version,
      type: type,
    }
  end.compact
end

.parse_maven_resolved(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 220

def self.parse_maven_resolved(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  Strings::ANSI.sanitize(file_contents)
    .split("\n")
    .map(&method(:parse_resolved_dep_line))
    .compact
    .uniq
end

.parse_maven_tree(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 228

def self.parse_maven_tree(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  captures = Strings::ANSI.sanitize(file_contents)
    .gsub(/\r\n?/, "\n")
    .scan(/^\[INFO\](?:(?:\+-)|\||(?:\\-)|\s)+((?:[\w\.-]+:)+[\w\.\-${}]+)/)
    .flatten
    .uniq

  deps = captures.map do |item|
    parts = item.split(":")
    case parts.count
    when 4
      version = parts[-1]
      type = parts[-2]
    when 5..6
      version, type = parts[-2..]
    end
    {
      name: parts[0..1].join(":"),
      requirement: version,
      type: type,
    }
  end

  # First dep line will be the package itself (unless we're only analyzing a single line)
  package = deps[0]
  deps.size < 2 ? deps : deps[1..-1].reject { |d| d[:name] == package[:name] && d[:requirement] == package[:requirement] }
end

.parse_pom_manifest(file_contents, parent_properties = {}, options: {}) ⇒ Object

parent_properties is used by Libraries: github.com/librariesio/libraries.io/blob/e970925aade2596a03268b6e1be785eba8502c62/app/models/package_manager/maven.rb#L129



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# File 'lib/bibliothecary/parsers/maven.rb', line 277

def self.parse_pom_manifest(file_contents, parent_properties = {}, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  manifest = Ox.parse file_contents
  xml = manifest.respond_to?("project") ? manifest.project : manifest
  [].tap do |deps|
    # <dependencyManagement> is a namespace to specify artifact configuration (e.g. version), but it doesn't
    # actually add dependencies to your project. Grab these and keep them for reference while parsing <dependencies>
    # Ref: https://maven.apache.org/pom.html#Dependency_Management
    # Ref: https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#transitive-dependencies
    dependencyManagement = xml.locate("dependencyManagement/dependencies/dependency").map do |dep|
      {
        groupId: extract_pom_dep_info(xml, dep, "groupId", parent_properties),
        artifactId: extract_pom_dep_info(xml, dep, "artifactId", parent_properties),
        version: extract_pom_dep_info(xml, dep, "version", parent_properties),
        scope: extract_pom_dep_info(xml, dep, "scope", parent_properties),
      }
    end
    # <dependencies> is the namespace that will add dependencies to your project.
    xml.locate("dependencies/dependency").each do |dep|
      groupId = extract_pom_dep_info(xml, dep, "groupId", parent_properties)
      artifactId = extract_pom_dep_info(xml, dep, "artifactId", parent_properties)
      version = extract_pom_dep_info(xml, dep, "version", parent_properties)
      scope = extract_pom_dep_info(xml, dep, "scope", parent_properties)

      # Use any dep configurations from <dependencyManagement> as fallbacks
      if (depConfig = dependencyManagement.find { |d| d[:groupId] == groupId && d[:artifactId] == artifactId })
        version ||= depConfig[:version]
        scope ||= depConfig[:scope]
      end

      dep_hash = {
        name: "#{groupId}:#{artifactId}",
        requirement: version,
        type: scope || "runtime",
      }
      # optional field is, itself, optional, and will be either "true" or "false"
      optional = extract_pom_dep_info(xml, dep, "optional", parent_properties)
      dep_hash[:optional] = optional == "true" unless optional.nil?
      deps.push(dep_hash)
    end
  end
end

.parse_resolved_dep_line(line) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 256

def self.parse_resolved_dep_line(line)
  # filter out anything that doesn't look like a
  # resolved dep line
  return unless line[/  .*:[^-]+-- /]

  dep_parts = line.strip.split(":")
  return unless dep_parts.length == 5
  # org.springframework.boot:spring-boot-starter-web:jar:2.0.3.RELEASE:compile -- module spring.boot.starter.web [auto]
  {
    name: dep_parts[0, 2].join(":"),
    requirement: dep_parts[3],
    type: dep_parts[4].split("--").first.strip,
  }
end

.parse_sbt_deps(type, lines) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 464

def self.parse_sbt_deps(type, lines)
  deps = []
  while lines.any? and not SBT_TYPE_REGEXP.match(lines[0])
    line = lines.shift

    next if SBT_IGNORE_REGEXP.match(line)

    dep_match = SBT_DEP_REGEXP.match(line)
    if dep_match
      versions = parse_sbt_versions(type, dep_match.captures[0], lines)
      deps.concat(versions)
    else
      lines.unshift(line)
      break
    end
  end

  deps
end

.parse_sbt_update_full(file_contents, options: {}) ⇒ Object

rubocop:disable Lint/UnusedMethodArgument



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# File 'lib/bibliothecary/parsers/maven.rb', line 428

def self.parse_sbt_update_full(file_contents, options: {}) # rubocop:disable Lint/UnusedMethodArgument
  all_deps = []
  lines = file_contents.split("\n")
  while lines.any?
    line = lines.shift

    type_match = SBT_TYPE_REGEXP.match(line)
    next unless type_match
    type = type_match.captures[0]

    deps = parse_sbt_deps(type, lines)
    all_deps.concat(deps)
  end

  # strip out evicted dependencies
  all_deps.select! do |dep|
    dep[:fields]["evicted"] != "true"
  end

  # in the future, we could use "callers" in the fields to
  # decide which deps are direct root deps and which are
  # pulled in by another dep.  The direct deps have the sbt
  # project name as a caller.

  # clean out any duplicates (I'm pretty sure sbt will have done this for
  # us so this is paranoia, basically)
  squished = all_deps.compact.uniq {|item| [item[:name], item[:requirement], item[:type]]}

  # get rid of the fields
  squished.each do |dep|
    dep.delete(:fields)
  end

  return squished
end

.parse_sbt_version(type, name, version, lines) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 501

def self.parse_sbt_version(type, name, version, lines)
  fields = {}
  while lines.any? and not SBT_TYPE_REGEXP.match(lines[0])
    line = lines.shift

    field_match = SBT_FIELD_REGEXP.match(line)
    if field_match
      fields[field_match.captures[0]] = field_match.captures[1]
    else
      lines.unshift(line)
      break
    end
  end

  {
    name: name,
    requirement: version,
    type: type,
    # we post-process using some of these fields and then delete them again
    fields: fields,
  }
end

.parse_sbt_versions(type, name, lines) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 484

def self.parse_sbt_versions(type, name, lines)
  versions = []
  while lines.any? and not SBT_TYPE_REGEXP.match(lines[0])
    line = lines.shift

    version_match = SBT_VERSION_REGEXP.match(line)
    if version_match
      versions.push(parse_sbt_version(type, name, version_match.captures[0], lines))
    else
      lines.unshift(line)
      break
    end
  end

  versions
end

.parse_standalone_pom_manifest(file_contents, options: {}) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 271

def self.parse_standalone_pom_manifest(file_contents, options: {})
  parse_pom_manifest(file_contents, {}, options: options)
end

.property_value(xml, property_name, parent_properties) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 402

def self.property_value(xml, property_name, parent_properties)
  # the xml root is <project> so lookup the non property name in the xml
  # this converts ${project/group.id} -> ${group/id}
  non_prop_name = property_name.gsub(".", "/").gsub("project/", "")
  return "${#{property_name}}" if !xml.respond_to?("properties") && parent_properties.empty? && xml.locate(non_prop_name).empty?

  prop_field = xml.properties.locate(property_name).first if xml.respond_to?("properties")
  parent_prop = parent_properties[property_name] ||                 # e.g. "${foo}"
    parent_properties[property_name.sub(/^project\./, "")] ||       # e.g. "${project.foo}"
    parent_properties[property_name.sub(/^project\.parent\./, "")]  # e.g. "${project.parent.foo}"

  if prop_field
    prop_field.nodes.first
  elsif parent_prop
    parent_prop
  elsif xml.locate(non_prop_name).first
    # see if the value to look up is a field under the project
    # examples are ${project.groupId} or ${project.version}
    xml.locate(non_prop_name).first.nodes.first
  elsif xml.locate("parent/#{non_prop_name}").first
    # see if the value to look up is a field under the project parent
    # examples are ${project.groupId} or ${project.version}
    xml.locate("parent/#{non_prop_name}").first.nodes.first
  end
end

.replace_value_with_prop(original_value, property_value, property_name) ⇒ Object 



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# File 'lib/bibliothecary/parsers/maven.rb', line 382

def self.replace_value_with_prop(original_value, property_value, property_name)
  original_value.gsub("${#{property_name}}", property_value)
end