Future acquireDependencies()

in lib/src/entrypoint.dart [259:347]
78 lines of code
17 McCabe index (conditional complexity)

  Future<void> acquireDependencies(
    SolveType type, {
    Iterable<String>? unlock,
    bool dryRun = false,
    bool precompile = false,
    required bool generateDotPackages,
    required PubAnalytics? analytics,
    bool onlyReportSuccessOrFailure = false,
  }) async {
    final suffix = root.isInMemory || root.dir == '.' ? '' : ' in ${root.dir}';
    SolveResult result;
    try {
      result = await log.progress('Resolving dependencies$suffix', () async {
        _checkSdkConstraint(root.pubspec);
        return resolveVersions(
          type,
          cache,
          root,
          lockFile: lockFile,
          unlock: unlock ?? [],
        );
      });
    } catch (e) {
      if (onlyReportSuccessOrFailure && (e is ApplicationException)) {
        final directoryOption = root.isInMemory || root.dir == '.'
            ? ''
            : ' --directory ${root.dir}';
        throw ApplicationException(
            'Resolving dependencies$suffix failed. For details run `$topLevelProgram pub ${type.toString()}$directoryOption`');
      } else {
        rethrow;
      }
    }

    // Log once about all overridden packages.
    if (warnAboutPreReleaseSdkOverrides) {
      var overriddenPackages = (result.pubspecs.values
              .where((pubspec) => pubspec.dartSdkWasOverridden)
              .map((pubspec) => pubspec.name)
              .toList()
            ..sort())
          .join(', ');
      if (overriddenPackages.isNotEmpty) {
        log.message(log.yellow(
            'Overriding the upper bound Dart SDK constraint to <=${sdk.version} '
            'for the following packages:\n\n$overriddenPackages\n\n'
            'To disable this you can set the PUB_ALLOW_PRERELEASE_SDK system '
            'environment variable to `false`, or you can silence this message '
            'by setting it to `quiet`.'));
      }
    }

    if (!onlyReportSuccessOrFailure) {
      await result.showReport(type, cache);
    }
    if (!dryRun) {
      await result.downloadCachedPackages(cache);
      _saveLockFile(result);
    }
    if (onlyReportSuccessOrFailure) {
      log.message('Got dependencies$suffix.');
    } else {
      await result.summarizeChanges(type, cache, dryRun: dryRun);
    }

    if (!dryRun) {
      if (analytics != null) {
        result.sendAnalytics(analytics);
      }

      /// Build a package graph from the version solver results so we don't
      /// have to reload and reparse all the pubspecs.
      _packageGraph = PackageGraph.fromSolveResult(this, result);

      await writePackagesFiles(generateDotPackages: generateDotPackages);

      try {
        if (precompile) {
          await precompileExecutables();
        } else {
          _deleteExecutableSnapshots(changed: result.changedPackages);
        }
      } catch (error, stackTrace) {
        // Just log exceptions here. Since the method is just about acquiring
        // dependencies, it shouldn't fail unless that fails.
        log.exception(error, stackTrace);
      }
    }
  }