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	diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
	--- a/src/__phutil_library_map__.php
	+++ b/src/__phutil_library_map__.php
	@@ -54,6 +54,7 @@
	'ArcanistBraceFormattingXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistBraceFormattingXHPASTLinterRule.php',
	'ArcanistBraceFormattingXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistBraceFormattingXHPASTLinterRuleTestCase.php',
	'ArcanistBranchRef' => 'ref/ArcanistBranchRef.php',
	+ 'ArcanistBranchRefPro' => 'ref/ArcanistBranchRefPro.php',
	'ArcanistBranchWorkflow' => 'workflow/ArcanistBranchWorkflow.php',
	'ArcanistBrowseCommitHardpointLoader' => 'browse/loader/ArcanistBrowseCommitHardpointLoader.php',
	'ArcanistBrowseCommitURIHardpointLoader' => 'browse/loader/ArcanistBrowseCommitURIHardpointLoader.php',
	@@ -102,7 +103,10 @@
	'ArcanistCommentStyleXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistCommentStyleXHPASTLinterRule.php',
	'ArcanistCommentStyleXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistCommentStyleXHPASTLinterRuleTestCase.php',
	'ArcanistCommitRef' => 'ref/ArcanistCommitRef.php',
	+ 'ArcanistCommitRefInspector' => 'inspector/ArcanistCommitRefInspector.php',
	+ 'ArcanistCommitRefPro' => 'ref/ArcanistCommitRefPro.php',
	'ArcanistCommitUpstreamHardpointLoader' => 'loader/ArcanistCommitUpstreamHardpointLoader.php',
	+ 'ArcanistCommitUpstreamHardpointQuery' => 'query/ArcanistCommitUpstreamHardpointQuery.php',
	'ArcanistCommitWorkflow' => 'workflow/ArcanistCommitWorkflow.php',
	'ArcanistCompilerLintRenderer' => 'lint/renderer/ArcanistCompilerLintRenderer.php',
	'ArcanistComposerLinter' => 'lint/linter/ArcanistComposerLinter.php',
	@@ -203,6 +207,7 @@
	'ArcanistGetConfigWorkflow' => 'workflow/ArcanistGetConfigWorkflow.php',
	'ArcanistGitAPI' => 'repository/api/ArcanistGitAPI.php',
	'ArcanistGitCommitMessageHardpointLoader' => 'loader/ArcanistGitCommitMessageHardpointLoader.php',
	+ 'ArcanistGitCommitMessageHardpointQuery' => 'query/ArcanistGitCommitMessageHardpointQuery.php',
	'ArcanistGitHardpointLoader' => 'loader/ArcanistGitHardpointLoader.php',
	'ArcanistGitLandEngine' => 'land/ArcanistGitLandEngine.php',
	'ArcanistGitRevisionHardpointLoader' => 'loader/ArcanistGitRevisionHardpointLoader.php',
	@@ -226,6 +231,7 @@
	'ArcanistHardpointRequest' => 'hardpoint/ArcanistHardpointRequest.php',
	'ArcanistHardpointRequestList' => 'hardpoint/ArcanistHardpointRequestList.php',
	'ArcanistHardpointTask' => 'hardpoint/ArcanistHardpointTask.php',
	+ 'ArcanistHardpointTaskResult' => 'hardpoint/ArcanistHardpointTaskResult.php',
	'ArcanistHelpWorkflow' => 'toolset/workflow/ArcanistHelpWorkflow.php',
	'ArcanistHexadecimalNumericScalarCasingXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistHexadecimalNumericScalarCasingXHPASTLinterRule.php',
	'ArcanistHexadecimalNumericScalarCasingXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistHexadecimalNumericScalarCasingXHPASTLinterRuleTestCase.php',
	@@ -245,6 +251,7 @@
	'ArcanistInlineHTMLXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistInlineHTMLXHPASTLinterRuleTestCase.php',
	'ArcanistInnerFunctionXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistInnerFunctionXHPASTLinterRule.php',
	'ArcanistInnerFunctionXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistInnerFunctionXHPASTLinterRuleTestCase.php',
	+ 'ArcanistInspectWorkflow' => 'workflow/ArcanistInspectWorkflow.php',
	'ArcanistInstallCertificateWorkflow' => 'workflow/ArcanistInstallCertificateWorkflow.php',
	'ArcanistInstanceOfOperatorXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistInstanceOfOperatorXHPASTLinterRule.php',
	'ArcanistInstanceofOperatorXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistInstanceofOperatorXHPASTLinterRuleTestCase.php',
	@@ -381,6 +388,8 @@
	'ArcanistRaggedClassTreeEdgeXHPASTLinterRule' => 'lint/linter/xhpast/rules/ArcanistRaggedClassTreeEdgeXHPASTLinterRule.php',
	'ArcanistRaggedClassTreeEdgeXHPASTLinterRuleTestCase' => 'lint/linter/xhpast/rules/__tests__/ArcanistRaggedClassTreeEdgeXHPASTLinterRuleTestCase.php',
	'ArcanistRef' => 'ref/ArcanistRef.php',
	+ 'ArcanistRefInspector' => 'inspector/ArcanistRefInspector.php',
	+ 'ArcanistRefPro' => 'ref/ArcanistRefPro.php',
	'ArcanistRefQuery' => 'ref/ArcanistRefQuery.php',
	'ArcanistRepositoryAPI' => 'repository/api/ArcanistRepositoryAPI.php',
	'ArcanistRepositoryAPIMiscTestCase' => 'repository/api/__tests__/ArcanistRepositoryAPIMiscTestCase.php',
	@@ -489,12 +498,15 @@
	'ArcanistWildConfigOption' => 'config/option/ArcanistWildConfigOption.php',
	'ArcanistWorkflow' => 'workflow/ArcanistWorkflow.php',
	'ArcanistWorkflowArgument' => 'toolset/ArcanistWorkflowArgument.php',
	+ 'ArcanistWorkflowHardpointQuery' => 'toolset/query/ArcanistWorkflowHardpointQuery.php',
	'ArcanistWorkflowInformation' => 'toolset/ArcanistWorkflowInformation.php',
	'ArcanistWorkingCopy' => 'workingcopy/ArcanistWorkingCopy.php',
	+ 'ArcanistWorkingCopyCommitHardpointQuery' => 'query/ArcanistWorkingCopyCommitHardpointQuery.php',
	'ArcanistWorkingCopyConfigurationSource' => 'config/source/ArcanistWorkingCopyConfigurationSource.php',
	'ArcanistWorkingCopyIdentity' => 'workingcopyidentity/ArcanistWorkingCopyIdentity.php',
	'ArcanistWorkingCopyPath' => 'workingcopy/ArcanistWorkingCopyPath.php',
	'ArcanistWorkingCopyStateRef' => 'ref/ArcanistWorkingCopyStateRef.php',
	+ 'ArcanistWorkingCopyStateRefPro' => 'ref/ArcanistWorkingCopyStateRefPro.php',
	'ArcanistXHPASTLintNamingHook' => 'lint/linter/xhpast/ArcanistXHPASTLintNamingHook.php',
	'ArcanistXHPASTLintNamingHookTestCase' => 'lint/linter/xhpast/__tests__/ArcanistXHPASTLintNamingHookTestCase.php',
	'ArcanistXHPASTLintSwitchHook' => 'lint/linter/xhpast/ArcanistXHPASTLintSwitchHook.php',
	@@ -1010,6 +1022,7 @@
	'ArcanistBraceFormattingXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistBraceFormattingXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	'ArcanistBranchRef' => 'ArcanistRef',
	+ 'ArcanistBranchRefPro' => 'ArcanistRefPro',
	'ArcanistBranchWorkflow' => 'ArcanistFeatureWorkflow',
	'ArcanistBrowseCommitHardpointLoader' => 'ArcanistHardpointLoader',
	'ArcanistBrowseCommitURIHardpointLoader' => 'ArcanistBrowseURIHardpointLoader',
	@@ -1058,7 +1071,10 @@
	'ArcanistCommentStyleXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistCommentStyleXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	'ArcanistCommitRef' => 'ArcanistRef',
	+ 'ArcanistCommitRefInspector' => 'ArcanistRefInspector',
	+ 'ArcanistCommitRefPro' => 'ArcanistRefPro',
	'ArcanistCommitUpstreamHardpointLoader' => 'ArcanistHardpointLoader',
	+ 'ArcanistCommitUpstreamHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
	'ArcanistCommitWorkflow' => 'ArcanistWorkflow',
	'ArcanistCompilerLintRenderer' => 'ArcanistLintRenderer',
	'ArcanistComposerLinter' => 'ArcanistLinter',
	@@ -1159,6 +1175,7 @@
	'ArcanistGetConfigWorkflow' => 'ArcanistWorkflow',
	'ArcanistGitAPI' => 'ArcanistRepositoryAPI',
	'ArcanistGitCommitMessageHardpointLoader' => 'ArcanistGitHardpointLoader',
	+ 'ArcanistGitCommitMessageHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
	'ArcanistGitHardpointLoader' => 'ArcanistHardpointLoader',
	'ArcanistGitLandEngine' => 'ArcanistLandEngine',
	'ArcanistGitRevisionHardpointLoader' => 'ArcanistGitHardpointLoader',
	@@ -1182,6 +1199,7 @@
	'ArcanistHardpointRequest' => 'Phobject',
	'ArcanistHardpointRequestList' => 'Phobject',
	'ArcanistHardpointTask' => 'Phobject',
	+ 'ArcanistHardpointTaskResult' => 'Phobject',
	'ArcanistHelpWorkflow' => 'ArcanistWorkflow',
	'ArcanistHexadecimalNumericScalarCasingXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistHexadecimalNumericScalarCasingXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	@@ -1201,6 +1219,7 @@
	'ArcanistInlineHTMLXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	'ArcanistInnerFunctionXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistInnerFunctionXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	+ 'ArcanistInspectWorkflow' => 'ArcanistArcWorkflow',
	'ArcanistInstallCertificateWorkflow' => 'ArcanistWorkflow',
	'ArcanistInstanceOfOperatorXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistInstanceofOperatorXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	@@ -1337,6 +1356,8 @@
	'ArcanistRaggedClassTreeEdgeXHPASTLinterRule' => 'ArcanistXHPASTLinterRule',
	'ArcanistRaggedClassTreeEdgeXHPASTLinterRuleTestCase' => 'ArcanistXHPASTLinterRuleTestCase',
	'ArcanistRef' => 'Phobject',
	+ 'ArcanistRefInspector' => 'Phobject',
	+ 'ArcanistRefPro' => 'ArcanistHardpointObject',
	'ArcanistRefQuery' => 'Phobject',
	'ArcanistRepositoryAPI' => 'Phobject',
	'ArcanistRepositoryAPIMiscTestCase' => 'PhutilTestCase',
	@@ -1444,12 +1465,15 @@
	'ArcanistWildConfigOption' => 'ArcanistConfigOption',
	'ArcanistWorkflow' => 'Phobject',
	'ArcanistWorkflowArgument' => 'Phobject',
	+ 'ArcanistWorkflowHardpointQuery' => 'ArcanistHardpointQuery',
	'ArcanistWorkflowInformation' => 'Phobject',
	'ArcanistWorkingCopy' => 'Phobject',
	+ 'ArcanistWorkingCopyCommitHardpointQuery' => 'ArcanistWorkflowHardpointQuery',
	'ArcanistWorkingCopyConfigurationSource' => 'ArcanistFilesystemConfigurationSource',
	'ArcanistWorkingCopyIdentity' => 'Phobject',
	'ArcanistWorkingCopyPath' => 'Phobject',
	'ArcanistWorkingCopyStateRef' => 'ArcanistRef',
	+ 'ArcanistWorkingCopyStateRefPro' => 'ArcanistRefPro',
	'ArcanistXHPASTLintNamingHook' => 'Phobject',
	'ArcanistXHPASTLintNamingHookTestCase' => 'PhutilTestCase',
	'ArcanistXHPASTLintSwitchHook' => 'Phobject',
	diff --git a/src/hardpoint/ArcanistHardpointList.php b/src/hardpoint/ArcanistHardpointList.php
	--- a/src/hardpoint/ArcanistHardpointList.php
	+++ b/src/hardpoint/ArcanistHardpointList.php
	@@ -46,6 +46,10 @@
	return isset($this->attached[$hardpoint]);
	}

	+ public function getHardpoints() {
	+ return $this->hardpoints;
	+ }
	+
	public function getHardpointDefinition($object, $hardpoint) {
	if (!$this->hasHardpoint($object, $hardpoint)) {
	throw new Exception(
	diff --git a/src/hardpoint/ArcanistHardpointTask.php b/src/hardpoint/ArcanistHardpointTask.php
	--- a/src/hardpoint/ArcanistHardpointTask.php
	+++ b/src/hardpoint/ArcanistHardpointTask.php
	@@ -100,6 +100,7 @@
	$generator->next();
	}

	+ $generator_result = null;
	if ($generator->valid()) {
	$result = $generator->current();

	@@ -152,17 +153,25 @@
	return true;
	}

	- throw new Exception(
	- pht(
	- 'Hardpoint generator (for query "%s") yielded an unexpected '.
	- 'value. Generators may only yield "Future" or '.
	- '"ArcanistHardpointRequest" objects, got "%s".',
	- get_class($query),
	- phutil_describe_type($result)));
	+ if ($result instanceof ArcanistHardpointTaskResult) {
	+ $generator_result = $result;
	+ } else {
	+ throw new Exception(
	+ pht(
	+ 'Hardpoint generator (for query "%s") yielded an unexpected '.
	+ 'value (of type "%s").',
	+ get_class($query),
	+ phutil_describe_type($result)));
	+ }
	}

	$this->generator = null;
	- $result = $generator->getReturn();
	+
	+ if ($generator_result !== null) {
	+ $result = $generator_result->getValue();
	+ } else {
	+ $result = $generator->getReturn();
	+ }

	$this->attachResult($result);

	diff --git a/src/hardpoint/ArcanistHardpointTaskResult.php b/src/hardpoint/ArcanistHardpointTaskResult.php
	new file mode 100644
	--- /dev/null
	+++ b/src/hardpoint/ArcanistHardpointTaskResult.php
	@@ -0,0 +1,16 @@
	+<?php
	+
	+final class ArcanistHardpointTaskResult
	+ extends Phobject {
	+
	+ private $value;
	+
	+ public function __construct($value) {
	+ $this->value = $value;
	+ }
	+
	+ public function getValue() {
	+ return $this->value;
	+ }
	+
	+}
	diff --git a/src/inspector/ArcanistCommitRefInspector.php b/src/inspector/ArcanistCommitRefInspector.php
	new file mode 100644
	--- /dev/null
	+++ b/src/inspector/ArcanistCommitRefInspector.php
	@@ -0,0 +1,22 @@
	+<?php
	+
	+final class ArcanistCommitRefInspector
	+ extends ArcanistRefInspector {
	+
	+ public function getInspectFunctionName() {
	+ return 'commit';
	+ }
	+
	+ public function newInspectRef(array $argv) {
	+ if (count($argv) !== 1) {
	+ throw new PhutilArgumentUsageException(
	+ pht(
	+ 'Expected exactly one argument to "commit(...)" with a '.
	+ 'commit hash.'));
	+ }
	+
	+ return id(new ArcanistCommitRefPro())
	+ ->setCommitHash($argv[0]);
	+ }
	+
	+}
	diff --git a/src/inspector/ArcanistRefInspector.php b/src/inspector/ArcanistRefInspector.php
	new file mode 100644
	--- /dev/null
	+++ b/src/inspector/ArcanistRefInspector.php
	@@ -0,0 +1,16 @@
	+<?php
	+
	+abstract class ArcanistRefInspector
	+ extends Phobject {
	+
	+ abstract public function getInspectFunctionName();
	+ abstract public function newInspectRef(array $argv);
	+
	+ final public static function getAllInspectors() {
	+ return id(new PhutilClassMapQuery())
	+ ->setAncestorClass(__CLASS__)
	+ ->setUniqueMethod('getInspectFunctionName')
	+ ->execute();
	+ }
	+
	+}
	diff --git a/src/query/ArcanistCommitUpstreamHardpointQuery.php b/src/query/ArcanistCommitUpstreamHardpointQuery.php
	new file mode 100644
	--- /dev/null
	+++ b/src/query/ArcanistCommitUpstreamHardpointQuery.php
	@@ -0,0 +1,53 @@
	+<?php
	+
	+final class ArcanistCommitUpstreamHardpointQuery
	+ extends ArcanistWorkflowHardpointQuery {
	+
	+ public function getHardpoints() {
	+ return array(
	+ ArcanistCommitRefPro::HARDPOINT_UPSTREAM,
	+ );
	+ }
	+
	+ protected function canLoadRef(ArcanistRefPro $ref) {
	+ return ($ref instanceof ArcanistCommitRefPro);
	+ }
	+
	+ public function loadHardpoint(array $refs, $hardpoint) {
	+ $repository_ref = (yield $this->yieldRepositoryRef());
	+ if (!$repository_ref) {
	+ yield $this->yieldValue($refs, null);
	+ }
	+ $repository_phid = $repository_ref->getPHID();
	+
	+ $commit_map = array();
	+ foreach ($refs as $key => $ref) {
	+ $hash = $ref->getCommitHash();
	+ $commit_map[$hash][] = $key;
	+ }
	+
	+ $commit_info = (yield $this->yieldConduit(
	+ 'diffusion.querycommits',
	+ array(
	+ 'repositoryPHID' => $repository_phid,
	+ 'names' => array_keys($commit_map),
	+ )));
	+
	+ $results = array();
	+ foreach ($commit_map as $hash => $keys) {
	+ $commit_phid = idx($commit_info['identifierMap'], $hash);
	+ if ($commit_phid) {
	+ $commit_data = idx($commit_info['data'], $commit_phid);
	+ } else {
	+ $commit_data = null;
	+ }
	+
	+ foreach ($keys as $key) {
	+ $results[$key] = $commit_data;
	+ }
	+ }
	+
	+ yield $this->yieldMap($results);
	+ }
	+
	+}
	diff --git a/src/query/ArcanistGitCommitMessageHardpointQuery.php b/src/query/ArcanistGitCommitMessageHardpointQuery.php
	new file mode 100644
	--- /dev/null
	+++ b/src/query/ArcanistGitCommitMessageHardpointQuery.php
	@@ -0,0 +1,53 @@
	+<?php
	+
	+final class ArcanistGitCommitMessageHardpointQuery
	+ extends ArcanistWorkflowHardpointQuery {
	+
	+ public function getHardpoints() {
	+ return array(
	+ ArcanistCommitRefPro::HARDPOINT_MESSAGE,
	+ );
	+ }
	+
	+ protected function canLoadRef(ArcanistRefPro $ref) {
	+ return ($ref instanceof ArcanistCommitRefPro);
	+ }
	+
	+ protected function canLoadHardpoint() {
	+ $api = $this->getRepositoryAPI();
	+ return ($api instanceof ArcanistGitAPI);
	+ }
	+
	+ public function loadHardpoint(array $refs, $hardpoint) {
	+ $api = $this->getRepositoryAPI();
	+
	+ $hashes = mpull($refs, 'getCommitHash');
	+ $unique_hashes = array_fuse($hashes);
	+
	+ // TODO: Update this to use "%B", see T5028. We can also bulk-resolve
	+ // these with "git show --quiet --format=... hash hash hash ... --".
	+
	+ $futures = array();
	+ foreach ($unique_hashes as $hash) {
	+ $futures[$hash] = $api->execFutureLocal(
	+ 'log -n1 --format=%s %s --',
	+ '%s%n%n%b',
	+ $hash);
	+ }
	+
	+ yield $this->yieldFutures($futures);
	+
	+ $messages = array();
	+ foreach ($futures as $hash => $future) {
	+ list($stdout) = $future->resolvex();
	+ $messages[$hash] = $stdout;
	+ }
	+
	+ foreach ($hashes as $ref_key => $hash) {
	+ $hashes[$ref_key] = $messages[$hash];
	+ }
	+
	+ yield $this->yieldMap($hashes);
	+ }
	+
	+}
	diff --git a/src/query/ArcanistWorkingCopyCommitHardpointQuery.php b/src/query/ArcanistWorkingCopyCommitHardpointQuery.php
	new file mode 100644
	--- /dev/null
	+++ b/src/query/ArcanistWorkingCopyCommitHardpointQuery.php
	@@ -0,0 +1,39 @@
	+<?php
	+
	+final class ArcanistWorkingCopyCommitHardpointQuery
	+ extends ArcanistWorkflowHardpointQuery {
	+
	+ public function getHardpoints() {
	+ return array(
	+ ArcanistWorkingCopyStateRefPro::HARDPOINT_COMMITREF,
	+ );
	+ }
	+
	+ protected function canLoadRef(ArcanistRefPro $ref) {
	+ return ($ref instanceof ArcanistWorkingCopyStateRefPro);
	+ }
	+
	+ public function loadHardpoint(array $refs, $hardpoint) {
	+ yield $this->yieldRequests(
	+ $refs,
	+ array(
	+ ArcanistWorkingCopyStateRefPro::HARDPOINT_BRANCHREF,
	+ ));
	+
	+ $branch_refs = mpull($refs, 'getBranchRef');
	+
	+ yield $this->yieldRequests(
	+ $branch_refs,
	+ array(
	+ ArcanistBranchRefPro::HARDPOINT_COMMITREF,
	+ ));
	+
	+ $results = array();
	+ foreach ($refs as $key => $ref) {
	+ $results[$key] = $ref->getBranchRef()->getCommitRef();
	+ }
	+
	+ yield $this->yieldMap($results);
	+ }
	+
	+}
	diff --git a/src/ref/ArcanistBranchRefPro.php b/src/ref/ArcanistBranchRefPro.php
	new file mode 100644
	--- /dev/null
	+++ b/src/ref/ArcanistBranchRefPro.php
	@@ -0,0 +1,57 @@
	+<?php
	+
	+final class ArcanistBranchRefPro
	+ extends ArcanistRefPro {
	+
	+ const HARDPOINT_COMMITREF = 'commitRef';
	+
	+ private $branchName;
	+ private $refName;
	+ private $isCurrentBranch;
	+
	+ public function getRefDisplayName() {
	+ return pht('Branch %s', $this->getBranchName());
	+ }
	+
	+ protected function newHardpoints() {
	+ return array(
	+ $this->newHardpoint(self::HARDPOINT_COMMITREF),
	+ );
	+ }
	+
	+ public function setBranchName($branch_name) {
	+ $this->branchName = $branch_name;
	+ return $this;
	+ }
	+
	+ public function getBranchName() {
	+ return $this->branchName;
	+ }
	+
	+ public function setRefName($ref_name) {
	+ $this->refName = $ref_name;
	+ return $this;
	+ }
	+
	+ public function getRefName() {
	+ return $this->refName;
	+ }
	+
	+ public function setIsCurrentBranch($is_current_branch) {
	+ $this->isCurrentBranch = $is_current_branch;
	+ return $this;
	+ }
	+
	+ public function getIsCurrentBranch() {
	+ return $this->isCurrentBranch;
	+ }
	+
	+ public function attachCommitRef(ArcanistCommitRef $ref) {
	+ return $this->attachHardpoint(self::HARDPOINT_COMMITREF, $ref);
	+ }
	+
	+ public function getCommitRef() {
	+ return $this->getHardpoint(self::HARDPOINT_COMMITREF);
	+ }
	+
	+}
	diff --git a/src/ref/ArcanistCommitRefPro.php b/src/ref/ArcanistCommitRefPro.php
	new file mode 100644
	--- /dev/null
	+++ b/src/ref/ArcanistCommitRefPro.php
	@@ -0,0 +1,93 @@
	+<?php
	+
	+final class ArcanistCommitRefPro
	+ extends ArcanistRefPro {
	+
	+ private $commitHash;
	+ private $treeHash;
	+ private $commitEpoch;
	+ private $authorEpoch;
	+ private $upstream;
	+
	+ const HARDPOINT_MESSAGE = 'message';
	+ const HARDPOINT_UPSTREAM = 'upstream';
	+
	+ public function getRefDisplayName() {
	+ return pht('Commit "%s"', $this->getCommitHash());
	+ }
	+
	+ protected function newHardpoints() {
	+ return array(
	+ $this->newHardpoint(self::HARDPOINT_MESSAGE),
	+ $this->newHardpoint(self::HARDPOINT_UPSTREAM),
	+ );
	+ }
	+
	+ public function setCommitHash($commit_hash) {
	+ $this->commitHash = $commit_hash;
	+ return $this;
	+ }
	+
	+ public function getCommitHash() {
	+ return $this->commitHash;
	+ }
	+
	+ public function setTreeHash($tree_hash) {
	+ $this->treeHash = $tree_hash;
	+ return $this;
	+ }
	+
	+ public function getTreeHash() {
	+ return $this->treeHash;
	+ }
	+
	+ public function setCommitEpoch($commit_epoch) {
	+ $this->commitEpoch = $commit_epoch;
	+ return $this;
	+ }
	+
	+ public function getCommitEpoch() {
	+ return $this->commitEpoch;
	+ }
	+
	+ public function setAuthorEpoch($author_epoch) {
	+ $this->authorEpoch = $author_epoch;
	+ return $this;
	+ }
	+
	+ public function getAuthorEpoch() {
	+ return $this->authorEpoch;
	+ }
	+
	+ public function getSummary() {
	+ $message = $this->getMessage();
	+
	+ $message = trim($message);
	+ $lines = phutil_split_lines($message, false);
	+
	+ return head($lines);
	+ }
	+
	+ public function attachMessage($message) {
	+ return $this->attachHardpoint(self::HARDPOINT_MESSAGE, $message);
	+ }
	+
	+ public function getMessage() {
	+ return $this->getHardpoint(self::HARDPOINT_MESSAGE);
	+ }
	+
	+ public function getURI() {
	+ return $this->getUpstreamProperty('uri');
	+ }
	+
	+ private function getUpstreamProperty($key, $default = null) {
	+ $upstream = $this->getHardpoint(self::HARDPOINT_UPSTREAM);
	+
	+ if (!$upstream) {
	+ return $default;
	+ }
	+
	+ return idx($upstream, $key, $default);
	+ }
	+
	+}
	diff --git a/src/ref/ArcanistRefPro.php b/src/ref/ArcanistRefPro.php
	new file mode 100644
	--- /dev/null
	+++ b/src/ref/ArcanistRefPro.php
	@@ -0,0 +1,8 @@
	+<?php
	+
	+abstract class ArcanistRefPro
	+ extends ArcanistHardpointObject {
	+
	+ abstract public function getRefDisplayName();
	+
	+}
	diff --git a/src/ref/ArcanistWorkingCopyStateRefPro.php b/src/ref/ArcanistWorkingCopyStateRefPro.php
	new file mode 100644
	--- /dev/null
	+++ b/src/ref/ArcanistWorkingCopyStateRefPro.php
	@@ -0,0 +1,62 @@
	+<?php
	+
	+final class ArcanistWorkingCopyStateRefPro
	+ extends ArcanistRefPro {
	+
	+ const HARDPOINT_COMMITREF = 'commitRef';
	+ const HARDPOINT_BRANCHREF = 'branchRef';
	+ const HARDPOINT_REVISIONREFS = 'revisionRefs';
	+
	+ public function getRefDisplayName() {
	+ // TODO: This could check attached hardpoints and render something more
	+ // insightful.
	+ return pht('Working Copy State');
	+ }
	+
	+ protected function newHardpoints() {
	+ return array(
	+ $this->newHardpoint(self::HARDPOINT_COMMITREF),
	+ $this->newHardpoint(self::HARDPOINT_BRANCHREF),
	+ $this->newVectorHardpoint(self::HARDPOINT_REVISIONREFS),
	+ );
	+ }
	+
	+ public function attachBranchRef(ArcanistBranchRef $branch_ref) {
	+ return $this->attachHardpoint(self::HARDPOINT_BRANCHREF, $branch_ref);
	+ }
	+
	+ public function getBranchRef() {
	+ return $this->getHardpoint(self::HARDPOINT_BRANCHREF);
	+ }
	+
	+ public function setCommitRef(ArcanistCommitRef $commit_ref) {
	+ return $this->attachHardpoint(self::HARDPOINT_COMMITREF, $commit_ref);
	+ }
	+
	+ public function getCommitRef() {
	+ return $this->getHardpoint(self::HARDPOINT_COMMITREF);
	+ }
	+
	+ public function getRevisionRefs() {
	+ return $this->getHardpoint(self::HARDPOINT_REVISIONREFS);
	+ }
	+
	+ public function getRevisionRef() {
	+ if ($this->hasAmbiguousRevisionRefs()) {
	+ throw new Exception(
	+ pht('State has multiple ambiguous revisions refs.'));
	+ }
	+
	+ $refs = $this->getRevisionRefs();
	+ if ($refs) {
	+ return head($refs);
	+ }
	+
	+ return null;
	+ }
	+
	+ public function hasAmbiguousRevisionRefs() {
	+ return (count($this->getRevisionRefs()) > 1);
	+ }
	+
	+}
	diff --git a/src/repository/api/ArcanistFilesystemAPI.php b/src/repository/api/ArcanistFilesystemAPI.php
	--- a/src/repository/api/ArcanistFilesystemAPI.php
	+++ b/src/repository/api/ArcanistFilesystemAPI.php
	@@ -82,7 +82,7 @@
	}

	public function getRemoteURI() {
	- throw new PhutilMethodNotImplementedException();
	+ return null;
	}

	public function supportsLocalCommits() {
	@@ -90,7 +90,9 @@
	}

	protected function buildLocalFuture(array $argv) {
	- throw new PhutilMethodNotImplementedException();
	+ $future = newv('ExecFuture', $argv);
	+ $future->setCWD($this->getPath());
	+ return $future;
	}

	public function supportsCommitRanges() {
	diff --git a/src/toolset/query/ArcanistWorkflowHardpointQuery.php b/src/toolset/query/ArcanistWorkflowHardpointQuery.php
	new file mode 100644
	--- /dev/null
	+++ b/src/toolset/query/ArcanistWorkflowHardpointQuery.php
	@@ -0,0 +1,88 @@
	+<?php
	+
	+abstract class ArcanistWorkflowHardpointQuery
	+ extends ArcanistHardpointQuery {
	+
	+ private $workflow;
	+ private $canLoadHardpoint;
	+
	+ final public function setWorkflow(ArcanistWorkflow $workflow) {
	+ $this->workflow = $workflow;
	+ return $this;
	+ }
	+
	+ final public function getWorkflow() {
	+ return $this->workflow;
	+ }
	+
	+ final public function getWorkingCopy() {
	+ return $this->getWorkflow()->getWorkingCopy();
	+ }
	+
	+ final public function getRepositoryAPI() {
	+ return $this->getWorkingCopy()->getRepositoryAPI();
	+ }
	+
	+ public static function getAllQueries() {
	+ return id(new PhutilClassMapQuery())
	+ ->setAncestorClass(__CLASS__)
	+ ->execute();
	+ }
	+
	+ final public function canLoadObject(ArcanistHardpointObject $object) {
	+ if ($this->canLoadHardpoint === null) {
	+ $this->canLoadHardpoint = $this->canLoadHardpoint();
	+ }
	+
	+ if (!$this->canLoadHardpoint) {
	+ return false;
	+ }
	+
	+ if (!$object instanceof ArcanistRefPro) {
	+ return false;
	+ }
	+
	+ return $this->canLoadRef($object);
	+ }
	+
	+ protected function canLoadHardpoint() {
	+ return true;
	+ }
	+
	+ abstract protected function canLoadRef(ArcanistRefPro $ref);
	+
	+ final public function yieldConduit($method, array $parameters) {
	+ $conduit_engine = $this->getWorkflow()
	+ ->getConduitEngine();
	+
	+ $call_object = $conduit_engine->newCall($method, $parameters);
	+ $call_future = $conduit_engine->newFuture($call_object);
	+
	+ return $this->yieldFuture($call_future);
	+ }
	+
	+ final public function yieldRepositoryRef() {
	+ $workflow = $this->getWorkflow();
	+
	+ // TODO: This is currently a blocking request, but should yield to the
	+ // hardpoint engine in the future.
	+
	+ $repository_ref = $workflow->getRepositoryRef();
	+ $ref_future = new ImmediateFuture($repository_ref);
	+
	+ return $this->yieldFuture($ref_future);
	+ }
	+
	+ final public function yieldValue(array $refs, $value) {
	+ assert_instances_of($refs, 'ArcanistRefPro');
	+
	+ $keys = array_keys($refs);
	+ $map = array_fill_keys($keys, $value);
	+ return $this->yieldMap($map);
	+ }
	+
	+ final public function yieldMap(array $map) {
	+ return new ArcanistHardpointTaskResult($map);
	+ }
	+
	+}
	diff --git a/src/workflow/ArcanistInspectWorkflow.php b/src/workflow/ArcanistInspectWorkflow.php
	new file mode 100644
	--- /dev/null
	+++ b/src/workflow/ArcanistInspectWorkflow.php
	@@ -0,0 +1,207 @@
	+<?php
	+
	+final class ArcanistInspectWorkflow
	+ extends ArcanistArcWorkflow {
	+
	+ public function getWorkflowName() {
	+ return 'inspect';
	+ }
	+
	+ public function getWorkflowInformation() {
	+ $help = pht(<<<EOTEXT
	+Inspect internal object properties.
	+EOTEXT
	+);
	+
	+ return $this->newWorkflowInformation()
	+ ->setSynopsis(pht('Show internal object information.'))
	+ ->addExample(pht('inspect [__options__] -- __object__'))
	+ ->setHelp($help);
	+ }
	+
	+ public function getWorkflowArguments() {
	+ return array(
	+ $this->newWorkflowArgument('all')
	+ ->setHelp(pht('Load all object hardpoints.')),
	+ $this->newWorkflowArgument('objects')
	+ ->setWildcard(true),
	+ );
	+ }
	+
	+ public function runWorkflow() {
	+ $is_all = $this->getArgument('all');
	+ $objects = $this->getArgument('objects');
	+
	+ $inspectors = ArcanistRefInspector::getAllInspectors();
	+
	+ if (!$objects) {
	+ echo tsprintf(
	+ "%s\n\n",
	+ pht('Choose an object to inspect:'));
	+
	+ foreach ($inspectors as $inspector) {
	+ echo tsprintf(
	+ " - %s\n",
	+ $inspector->getInspectFunctionName());
	+ }
	+
	+ echo tsprintf("\n");
	+
	+ return 0;
	+ }
	+
	+ $all_refs = array();
	+ $ref_lists = array();
	+ foreach ($objects as $description) {
	+ $matches = null;
	+ if (!preg_match('/^(\w+)(?:$([^)]+)$)?\z/', $description, $matches)) {
	+ throw new PhutilArgumentUsageException(
	+ pht(
	+ 'Object specification "%s" is unknown, expected a specification '.
	+ 'like "commit(HEAD)".'));
	+ }
	+
	+ $function = $matches[1];
	+
	+ if (!isset($inspectors[$function])) {
	+ ksort($inspectors);
	+ throw new PhutilArgumentUsageException(
	+ pht(
	+ 'Unknown object type "%s", supported types are: %s.',
	+ $function,
	+ implode(', ', array_keys($inspectors))));
	+ }
	+
	+ $inspector = $inspectors[$function];
	+
	+ if (isset($matches[2])) {
	+ $arguments = array($matches[2]);
	+ } else {
	+ $arguments = array();
	+ }
	+
	+ $ref = $inspector->newInspectRef($arguments);
	+
	+ $ref_lists[get_class($ref)][] = $ref;
	+ $all_refs[] = $ref;
	+ }
	+
	+ if ($is_all) {
	+ foreach ($ref_lists as $ref_class => $refs) {
	+ $ref = head($refs);
	+
	+ $hardpoint_list = $ref->getHardpointList();
	+ $hardpoints = $hardpoint_list->getHardpoints();
	+
	+ if ($hardpoints) {
	+ $hardpoint_keys = mpull($hardpoints, 'getHardpointKey');
	+
	+ $this->loadHardpoints(
	+ $refs,
	+ $hardpoint_keys);
	+ }
	+ }
	+ }
	+
	+ $list = array();
	+ foreach ($all_refs as $ref) {
	+ $out = $this->describeRef($ref, 0);
	+ $list[] = implode('', $out);
	+ }
	+ $list = implode("\n", $list);
	+
	+ echo tsprintf('%B', $list);
	+
	+ return 0;
	+ }
	+
	+ private function describeRef(ArcanistRefPro $ref, $depth) {
	+ $indent = str_repeat(' ', $depth);
	+
	+ $out = array();
	+ $out[] = tsprintf(
	+ "%s+ [%s] %s\n",
	+ $indent,
	+ get_class($ref),
	+ $ref->getRefDisplayName());
	+
	+ $hardpoint_list = $ref->getHardpointList();
	+ foreach ($hardpoint_list->getHardpoints() as $hardpoint) {
	+ $lines = $this->describeHardpoint($ref, $hardpoint, $depth + 1);
	+ foreach ($lines as $line) {
	+ $out[] = $line;
	+ }
	+ }
	+
	+ return $out;
	+ }
	+
	+ private function describeHardpoint(
	+ ArcanistRefPro $ref,
	+ ArcanistHardpoint $hardpoint,
	+ $depth) {
	+ $indent = str_repeat(' ', $depth);
	+
	+ $children = array();
	+ $values = array();
	+
	+ $hardpoint_key = $hardpoint->getHardpointKey();
	+ if ($ref->hasAttachedHardpoint($hardpoint_key)) {
	+ $mode = '*';
	+ $value = $ref->getHardpoint($hardpoint_key);
	+ if ($value instanceof ArcanistRefPro) {
	+ $children[] = $value;
	+ } else {
	+ $values[] = $value;
	+ }
	+ } else {
	+ $mode = 'o';
	+ }
	+
	+ $out = array();
	+ $out[] = tsprintf(
	+ "%s%s [%s] %s\n",
	+ $indent,
	+ $mode,
	+ get_class($hardpoint),
	+ $hardpoint->getHardpointKey());
	+
	+ foreach ($children as $child) {
	+ $lines = $this->describeRef($child, $depth + 1);
	+ foreach ($lines as $line) {
	+ $out[] = $line;
	+ }
	+ }
	+
	+ foreach ($values as $value) {
	+ $lines = $this->describeValue($value, $depth + 1);
	+ foreach ($lines as $line) {
	+ $out[] = $line;
	+ }
	+ }
	+
	+ return $out;
	+ }
	+
	+ private function describeValue($value, $depth) {
	+ $indent = str_repeat(' ', $depth);
	+
	+ if (is_string($value)) {
	+ $display_value = '"'.addcslashes(substr($value, 0, 64), "\n\r\t\\\"").'"';
	+ } else if (is_scalar($value)) {
	+ $display_value = phutil_string_cast($value);
	+ } else if ($value === null) {
	+ $display_value = 'null';
	+ } else {
	+ $display_value = phutil_describe_type($value);
	+ }
	+
	+ $out = array();
	+ $out[] = tsprintf(
	+ "%s> %s\n",
	+ $indent,
	+ $display_value);
	+ return $out;
	+ }
	+
	+}
	diff --git a/src/workflow/ArcanistWorkflow.php b/src/workflow/ArcanistWorkflow.php
	--- a/src/workflow/ArcanistWorkflow.php
	+++ b/src/workflow/ArcanistWorkflow.php
	@@ -76,6 +76,8 @@
	private $configurationEngine;
	private $configurationSourceList;

	+ private $hardpointEngine;
	+
	final public function setToolset(ArcanistToolset $toolset) {
	$this->toolset = $toolset;
	return $this;
	@@ -2329,4 +2331,40 @@
	->setExecutableFuture($future);
	}

	+ final protected function loadHardpoints(
	+ array $objects,
	+ array $requests) {
	+
	+ $engine = $this->getHardpointEngine();
	+
	+ $requests = $engine->requestHardpoints(
	+ $objects,
	+ $requests);
	+
	+ // TODO: Wait for only the required requests.
	+ $engine->waitForRequests(array());
	+ }
	+
	+ private function getHardpointEngine() {
	+ if ($this->hardpointEngine === null) {
	+ $this->hardpointEngine = $this->newHardpointEngine();
	+ }
	+ return $this->hardpointEngine;
	+ }
	+
	+ private function newHardpointEngine() {
	+ $engine = new ArcanistHardpointEngine();
	+
	+ $queries = ArcanistWorkflowHardpointQuery::getAllQueries();
	+
	+ foreach ($queries as $key => $query) {
	+ $queries[$key] = id(clone $query)
	+ ->setWorkflow($this);
	+ }
	+
	+ $engine->setQueries($queries);
	+
	+ return $engine;
	+ }
	+
	}
	diff --git a/src/workingcopy/ArcanistFilesystemWorkingCopy.php b/src/workingcopy/ArcanistFilesystemWorkingCopy.php
	--- a/src/workingcopy/ArcanistFilesystemWorkingCopy.php
	+++ b/src/workingcopy/ArcanistFilesystemWorkingCopy.php
	@@ -14,7 +14,7 @@
	}

	protected function newRepositoryAPI() {
	- return new ArcanistFilesystemAPI();
	+ return new ArcanistFilesystemAPI($this->getPath());
	}

	public function getProjectConfigurationFilePath() {
	diff --git a/src/workingcopy/ArcanistWorkingCopy.php b/src/workingcopy/ArcanistWorkingCopy.php
	--- a/src/workingcopy/ArcanistWorkingCopy.php
	+++ b/src/workingcopy/ArcanistWorkingCopy.php
	@@ -57,7 +57,7 @@

	$working_copy = new ArcanistFilesystemWorkingCopy();

	- self::configureWorkingCopy($working_copy, $ancestor_path, $path);
	+ self::configureWorkingCopy($working_copy, $path, $path);

	return $working_copy;
	}

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