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diff --git a/src/land/ArcanistLandCommit.php b/src/land/ArcanistLandCommit.php
--- a/src/land/ArcanistLandCommit.php
+++ b/src/land/ArcanistLandCommit.php
@@ -12,6 +12,7 @@
private $parentCommits;
private $isHeadCommit;
private $isImplicitCommit;
+ private $relatedRevisionRefs = array();
private $directSymbols = array();
private $indirectSymbols = array();
@@ -156,5 +157,14 @@
return null;
}
+ public function setRelatedRevisionRefs(array $refs) {
+ assert_instances_of($refs, 'ArcanistRevisionRef');
+ $this->relatedRevisionRefs = $refs;
+ return $this;
+ }
+
+ public function getRelatedRevisionRefs() {
+ return $this->relatedRevisionRefs;
+ }
}
diff --git a/src/land/engine/ArcanistLandEngine.php b/src/land/engine/ArcanistLandEngine.php
--- a/src/land/engine/ArcanistLandEngine.php
+++ b/src/land/engine/ArcanistLandEngine.php
@@ -835,96 +835,76 @@
foreach ($commit_map as $commit) {
$hash = $commit->getHash();
$state_ref = $state_refs[$hash];
-
$revision_refs = $state_ref->getRevisionRefs();
+ $commit->setRelatedRevisionRefs($revision_refs);
+ }
- // If we have several possible revisions but one of them matches the
- // "--revision" argument, just select it. This is relatively safe and
- // reasonable and doesn't need a warning.
+ // For commits which have exactly one related revision, select it now.
- if ($force_ref) {
- if (count($revision_refs) > 1) {
- foreach ($revision_refs as $revision_ref) {
- if ($revision_ref->getPHID() === $force_ref->getPHID()) {
- $revision_refs = array($revision_ref);
- break;
- }
- }
- }
- }
-
- if (count($revision_refs) === 1) {
- $revision_ref = head($revision_refs);
- $commit->setExplicitRevisionRef($revision_ref);
- continue;
- }
+ foreach ($commit_map as $commit) {
+ $revision_refs = $commit->getRelatedRevisionRefs();
- if (!$revision_refs) {
+ if (count($revision_refs) !== 1) {
continue;
}
- // TODO: If we have several refs but all but one are abandoned or closed
- // or authored by someone else, we could guess what you mean.
+ $revision_ref = head($revision_refs);
+ $commit->setExplicitRevisionRef($revision_ref);
+ }
- $symbols = $commit->getIndirectSymbols();
- $raw_symbols = mpull($symbols, 'getSymbol');
- $symbol_list = implode(', ', $raw_symbols);
- $display_hash = $this->getDisplayHash($hash);
+ // If we have a "--revision", select that revision for any commits with
+ // no known related revisions.
- // TODO: Include "use 'arc look --type commit abc' to figure out why"
- // once that works?
+ // Also select that revision for any commits which have several possible
+ // revisions including that revision. This is relatively safe and
+ // reasonable and doesn't require a warning.
- echo tsprintf(
- "\n%!\n%W\n\n",
- pht('AMBIGUOUS REVISION'),
- pht(
- 'The revision associated with commit "%s" (an ancestor of: %s) '.
- 'is ambiguous. These %s revision(s) are associated with the commit:',
- $display_hash,
- implode(', ', $raw_symbols),
- phutil_count($revision_refs)));
+ if ($force_ref) {
+ $force_phid = $force_ref->getPHID();
+ foreach ($commit_map as $commit) {
+ if ($commit->getExplicitRevisionRef()) {
+ continue;
+ }
- foreach ($revision_refs as $revision_ref) {
- echo tsprintf(
- '%s',
- $revision_ref->newDisplayRef());
- }
+ $revision_refs = $commit->getRelatedRevisionRefs();
- echo tsprintf("\n");
+ if ($revision_refs) {
+ $revision_refs = mpull($revision_refs, null, 'getPHID');
+ if (!isset($revision_refs[$force_phid])) {
+ continue;
+ }
+ }
- throw new PhutilArgumentUsageException(
- pht(
- 'Revision for commit "%s" is ambiguous. Use "--revision" to force '.
- 'selection of a particular revision.',
- $display_hash));
+ $commit->setExplicitRevisionRef($force_ref);
+ }
}
- if ($force_ref) {
- $phid_map = array();
- foreach ($commit_map as $commit) {
- $explicit_ref = $commit->getExplicitRevisionRef();
- if ($explicit_ref) {
- $revision_phid = $explicit_ref->getPHID();
- $phid_map[$revision_phid] = $revision_phid;
- }
- }
+ // If we have a "--revision", identify any commits which it is not yet
+ // selected for. These are commits which are not associated with the
+ // identified revision but are associated with one or more other revisions.
+ if ($force_ref) {
$force_phid = $force_ref->getPHID();
- // If none of the commits have a revision, forcing the revision is
- // reasonable and we don't need to confirm it.
+ $confirm_force = array();
+ foreach ($commit_map as $key => $commit) {
+ $revision_ref = $commit->getExplicitRevisionRef();
+
+ if (!$revision_ref) {
+ continue;
+ }
- // If some of the commits have a revision, but it's the same as the
- // revision we're forcing, forcing the revision is also reasonable.
+ if ($revision_ref->getPHID() === $force_phid) {
+ continue;
+ }
- // Discard the revision we're trying to force, then check if there's
- // anything left. If some of the commits have a different revision,
- // make sure the user is really doing what they expect.
+ $confirm_force[] = $commit;
+ }
- unset($phid_map[$force_phid]);
+ if ($confirm_force) {
- if ($phid_map) {
// TODO: Make this more clear.
+ // TODO: Show all the commits.
throw new PhutilArgumentUsageException(
pht(
@@ -933,10 +913,73 @@
'ALL these commits wiht a different unrelated revision???'));
}
- foreach ($commit_map as $commit) {
+ foreach ($confirm_force as $commit) {
$commit->setExplicitRevisionRef($force_ref);
}
}
+
+ // Finally, raise an error if we're left with ambiguous revisions. This
+ // happens when we have no "--revision" and some commits in the range
+ // that are associated with more than one revision.
+
+ $ambiguous = array();
+ foreach ($commit_map as $commit) {
+ if ($commit->getExplicitRevisionRef()) {
+ continue;
+ }
+
+ if (!$commit->getRelatedRevisionRefs()) {
+ continue;
+ }
+
+ $ambiguous[] = $commit;
+ }
+
+ if ($ambiguous) {
+ foreach ($ambiguous as $commit) {
+ $symbols = $commit->getIndirectSymbols();
+ $raw_symbols = mpull($symbols, 'getSymbol');
+ $symbol_list = implode(', ', $raw_symbols);
+ $display_hash = $this->getDisplayHash($hash);
+
+ $revision_refs = $commit->getRelatedRevisionRefs();
+
+ // TODO: Include "use 'arc look --type commit abc' to figure out why"
+ // once that works?
+
+ // TODO: We could print all the ambiguous commits.
+
+ // TODO: Suggest "--pick" as a remedy once it exists?
+
+ echo tsprintf(
+ "\n%!\n%W\n\n",
+ pht('AMBIGUOUS REVISION'),
+ pht(
+ 'The revision associated with commit "%s" (an ancestor of: %s) '.
+ 'is ambiguous. These %s revision(s) are associated with the '.
+ 'commit:',
+ $display_hash,
+ implode(', ', $raw_symbols),
+ phutil_count($revision_refs)));
+
+ foreach ($revision_refs as $revision_ref) {
+ echo tsprintf(
+ '%s',
+ $revision_ref->newDisplayRef());
+ }
+
+ echo tsprintf("\n");
+
+ throw new PhutilArgumentUsageException(
+ pht(
+ 'Revision for commit "%s" is ambiguous. Use "--revision" to force '.
+ 'selection of a particular revision.',
+ $display_hash));
+ }
+ }
+
+ // NOTE: We may exit this method with commits that are still unassociated.
+ // These will be handled later by the "implicit commits" mechanism.
}
final protected function getDisplayHash($hash) {

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