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<?php
/**
* Copyright © 2016 Magento. All rights reserved.
* See COPYING.txt for license details.
*/
namespace Magento\ComposerRootUpdatePlugin\Updater;
use Closure;
use Composer\Package\Link;
use Composer\Package\RootPackageInterface;
use Magento\ComposerRootUpdatePlugin\Plugin\Commands\RequireCommerceCommand;
use Magento\ComposerRootUpdatePlugin\Utils\PackageUtils;
use Magento\ComposerRootUpdatePlugin\Plugin\Commands\OverrideRequireCommand;
use Magento\ComposerRootUpdatePlugin\Utils\Console;
/**
* Calculates updated values based on the deltas between original version, target version, and user customizations
*/
class DeltaResolver
{
/**
* Types of action to take on individual values when a delta is found; returned by findResolution()
*/
public const ADD_VAL = 'add_value';
public const REMOVE_VAL = 'remove_value';
public const CHANGE_VAL = 'change_value';
/**
* @var Console $console
*/
protected $console;
/**
* @var PackageUtils $pkgUtils
*/
protected $pkgUtils;
/**
* @var bool $overrideUserValues
*/
protected $overrideUserValues;
/**
* @var array $jsonChanges
*/
protected $jsonChanges;
/**
* @var RootPackageRetriever $retriever
*/
protected $retriever;
/**
* @var RootPackageInterface $originalRootPkg
*/
protected $originalRootPkg;
/**
* @var RootPackageInterface $targetRootPkg
*/
protected $targetRootPkg;
/**
* @var RootPackageInterface $userRootPkg
*/
protected $userRootPkg;
/**
* @var string $overrideOptLabel
*/
protected $overrideOptLabel;
/**
* @var $interactiveOptLabel
*/
protected $interactiveOptLabel;
/**
* @param Console $console
* @param bool $overrideUserValues
* @param RootPackageRetriever $retriever
* @param bool $isOverrideCommand
*/
public function __construct(
Console $console,
bool $overrideUserValues,
RootPackageRetriever $retriever,
bool $isOverrideCommand
) {
$this->console = $console;
$this->pkgUtils = new PackageUtils($console);
$this->overrideUserValues = $overrideUserValues;
$this->retriever = $retriever;
$this->originalRootPkg = $retriever->getOriginalRootPackage($overrideUserValues);
$this->targetRootPkg = $retriever->getTargetRootPackage();
$this->userRootPkg = $retriever->getUserRootPackage();
$this->jsonChanges = [];
if ($isOverrideCommand) {
$this->overrideOptLabel = OverrideRequireCommand::OVERRIDE_OPT;
$this->interactiveOptLabel = OverrideRequireCommand::INTERACTIVE_OPT;
} else {
$this->overrideOptLabel = RequireCommerceCommand::OVERRIDE_OPT;
$this->interactiveOptLabel = RequireCommerceCommand::INTERACTIVE_OPT;
}
}
/**
* Run conflict resolution between the three root projects and return the json array of changes that need to be made
*
* @return array
*/
public function resolveRootDeltas(): array
{
$orig = $this->originalRootPkg;
$target = $this->targetRootPkg;
$user = $this->userRootPkg;
$this->resolveLinkSection(
'require',
$orig->getRequires(),
$target->getRequires(),
$user->getRequires(),
false
);
$this->resolveLinkSection(
'require-dev',
$orig->getDevRequires(),
$target->getDevRequires(),
$user->getDevRequires(),
true
);
$this->resolveLinkSection(
'conflict',
$orig->getConflicts(),
$target->getConflicts(),
$user->getConflicts(),
false
);
$this->resolveLinkSection(
'provide',
$orig->getProvides(),
$target->getProvides(),
$user->getProvides(),
false
);
$this->resolveLinkSection(
'replace',
$orig->getReplaces(),
$target->getReplaces(),
$user->getReplaces(),
false
);
$this->resolveArraySection('autoload', $orig->getAutoload(), $target->getAutoload(), $user->getAutoload());
$this->resolveArraySection(
'autoload-dev',
$orig->getDevAutoload(),
$target->getDevAutoload(),
$user->getDevAutoload()
);
$this->resolveArraySection('extra', $orig->getExtra(), $target->getExtra(), $user->getExtra());
$this->resolveArraySection('suggest', $orig->getSuggests(), $target->getSuggests(), $user->getSuggests());
return $this->jsonChanges;
}
/**
* Find value deltas from original->target version and resolve any conflicts with overlapping user changes
*
* @param string $field
* @param array|mixed|null $originalVal
* @param array|mixed|null $targetVal
* @param array|mixed|null $userVal
* @param string|null $prettyOriginalVal
* @param string|null $prettyTargetVal
* @param string|null $prettyUserVal
* @return string|null ADD_VAL|REMOVE_VAL|CHANGE_VAL to adjust the existing composer.json file, null for no change
*/
public function findResolution(
string $field,
$originalVal,
$targetVal,
$userVal,
?string $prettyOriginalVal = null,
?string $prettyTargetVal = null,
?string $prettyUserVal = null
): ?string {
$prettyOriginalVal = $this->prettify($originalVal, $prettyOriginalVal);
$prettyTargetVal = $this->prettify($targetVal, $prettyTargetVal);
$prettyUserVal = $this->prettify($userVal, $prettyUserVal);
$targetLabel = $this->retriever->getTargetLabel();
$origLabel = $this->retriever->getOriginalLabel();
$conflictDesc = null;
if ($originalVal == $targetVal || $userVal == $targetVal) {
$action = null;
} elseif ($originalVal === null) {
if ($userVal === null) {
$action = self::ADD_VAL;
} else {
$action = self::CHANGE_VAL;
$conflictDesc = "add $field=$prettyTargetVal but it is instead $prettyUserVal";
}
} elseif ($targetVal === null) {
$action = self::REMOVE_VAL;
if ($userVal !== $originalVal) {
$conflictDesc = "remove the $field=$prettyOriginalVal entry in $origLabel but it is instead " .
$prettyUserVal;
}
} else {
$action = self::CHANGE_VAL;
if ($userVal !== $originalVal) {
$conflictDesc = "update $field to $prettyTargetVal from $prettyOriginalVal in $origLabel";
if ($userVal === null) {
$action = self::ADD_VAL;
$conflictDesc = "$conflictDesc but the field has been removed";
} else {
$conflictDesc = "$conflictDesc but it is instead $prettyUserVal";
}
}
}
return $this->solveIfConflict($action, $conflictDesc, $targetLabel);
}
/**
* Helper function to make a value human-readable
*
* @param $val
* @param string|null $prettyVal
* @return string|null
*/
protected function prettify($val, ?string $prettyVal = null): ?string
{
if ($prettyVal === null) {
$prettyVal = json_encode($val, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
$prettyVal = trim($prettyVal, "'\"");
}
return $prettyVal;
}
/**
* Check if a conflict was found and if so adjust the action according to override rules
*
* @param string|null $action
* @param string|null $conflictDesc
* @param string $targetLabel
* @return string|null
*/
protected function solveIfConflict(?string $action, ?string $conflictDesc, string $targetLabel): ?string
{
if ($conflictDesc !== null) {
$conflictDesc = "$targetLabel is trying to $conflictDesc in this installation";
$shouldOverride = $this->overrideUserValues;
$overrideOpt = $this->overrideOptLabel;
$interactiveOpt = $this->interactiveOptLabel;
if ($this->overrideUserValues) {
$this->console->log($conflictDesc);
$this->console->log("Overriding local changes due to --$overrideOpt.");
} else {
$shouldOverride = $this->console->ask("$conflictDesc.\nWould you like to override the local changes?");
}
if (!$shouldOverride) {
$this->console->comment("$conflictDesc and will not be changed. Re-run using " .
"--$overrideOpt or --$interactiveOpt to override with suggested values.");
$action = null;
}
}
return $action;
}
/**
* Process changes to corresponding sets of package version links
*
* @param string $section
* @param Link[] $originalLinks
* @param Link[] $targetLinks
* @param Link[] $userLinks
* @param bool $verifyOrder
* @return array
*/
public function resolveLinkSection(
string $section,
array $originalLinks,
array $targetLinks,
array $userLinks,
bool $verifyOrder
): array {
$toAdd = [];
$toRemove = [];
$toChange = [];
$pkgsToCompare = array_unique(array_merge(array_keys($originalLinks), array_keys($targetLinks)));
foreach ($pkgsToCompare as $pkg) {
if ($section === 'require' && $this->pkgUtils->getMetapackageEdition($pkg)) {
continue;
}
$this->resolveLink($section, $pkg, $originalLinks, $targetLinks, $userLinks, $toAdd, $toRemove, $toChange);
}
$changed = false;
if ($toAdd !== []) {
$changed = true;
$prettyAdds = array_map(function ($package) use ($toAdd) {
$newVal = $toAdd[$package]->getConstraint()->getPrettyString();
return "$package=$newVal";
}, array_keys($toAdd));
$this->console->labeledVerbose("Adding $section constraints: " . implode(', ', $prettyAdds));
}
if ($toRemove !== []) {
$changed = true;
$this->console->labeledVerbose("Removing $section entries: " . implode(', ', $toRemove));
}
if ($toChange !== []) {
$changed = true;
$prettyChanges = array_map(function ($package) use ($toChange) {
$newVal = $toChange[$package]->getConstraint()->getPrettyString();
return "$package=$newVal";
}, array_keys($toChange));
$this->console->labeledVerbose("Updating $section constraints: " . implode(', ', $prettyChanges));
}
$enforcedOrder = [];
if ($verifyOrder) {
$enforcedOrder = $this->getLinkOrderOverride(
$section,
array_keys($originalLinks),
array_keys($targetLinks),
array_keys($userLinks),
$changed
);
}
if ($changed) {
$this->applyLinkChanges(
$section,
$targetLinks,
$userLinks,
$enforcedOrder,
$toAdd,
$toRemove,
$toChange
);
}
return $this->jsonChanges;
}
/**
* Helper function to find the resolution for a package constraint in the Link sections
*
* @param string $section
* @param string $pkg
* @param Link[] $origLinkMap
* @param Link[] $targetLinkMap
* @param Link[] $userLinkMap
* @param Link[] $toAdd
* @param Link[] $toRemove
* @param Link[] $toChange
* @return void
*/
protected function resolveLink(
string $section,
string $pkg,
array $origLinkMap,
array $targetLinkMap,
array $userLinkMap,
array &$toAdd,
array &$toRemove,
array &$toChange
) {
$field = "$section:$pkg";
list($originalVal, $prettyOriginalVal) = $this->getConstraintValues($origLinkMap, $pkg);
list($targetVal, $prettyTargetVal) = $this->getConstraintValues($targetLinkMap, $pkg);
list($userVal, $prettyUserVal) = $this->getConstraintValues($userLinkMap, $pkg);
$action = $this->findResolution(
$field,
$originalVal,
$targetVal,
$userVal,
$prettyOriginalVal,
$prettyTargetVal,
$prettyUserVal
);
if ($action == self::ADD_VAL) {
$toAdd[$pkg] = $targetLinkMap[$pkg];
} elseif ($action == self::REMOVE_VAL) {
$toRemove[] = $pkg;
} elseif ($action == self::CHANGE_VAL) {
$toChange[$pkg] = $targetLinkMap[$pkg];
}
}
/**
* Helper function to get the raw and pretty forms of a constraint value for a package name
*
* @param Link[] $linkMap
* @param string $pkg
* @return string[]
*/
protected function getConstraintValues(array $linkMap, string $pkg): array
{
$constraint = key_exists($pkg, $linkMap) ? $linkMap[$pkg]->getConstraint() : null;
$val = null;
$prettyVal = null;
if ($constraint) {
$val = $constraint->__toString();
$prettyVal = $constraint->getPrettyString();
}
return [$val, $prettyVal];
}
/**
* Apply added, removed, and changed links to the stored json changes
*
* @param string $section
* @param Link[] $targetLinks
* @param Link[] $userLinks
* @param string[] $order
* @param Link[] $toAdd
* @param Link[] $toRemove
* @param Link[] $toChange
* @return void
*/
protected function applyLinkChanges(
string $section,
array $targetLinks,
array $userLinks,
array $order,
array $toAdd,
array $toRemove,
array $toChange
) {
$replacements = array_values($toAdd);
foreach ($userLinks as $pkg => $userLink) {
if (in_array($pkg, $toRemove)) {
continue;
} elseif (key_exists($pkg, $toChange)) {
$replacements[] = $toChange[$pkg];
} else {
$replacements[] = $userLink;
}
}
usort($replacements, $this->buildLinkOrderComparator(
$order,
array_keys($targetLinks),
array_keys($userLinks)
));
$newJson = [];
/** @var Link $link */
foreach ($replacements as $link) {
$newJson[$link->getTarget()] = $link->getConstraint()->getPrettyString();
}
$this->jsonChanges[$section] = $newJson;
}
/**
* Process changes to an array (non-package link) section
*
* @param string $section
* @param array|mixed|null $originalVal
* @param array|mixed|null $targetVal
* @param array|mixed|null $userVal
* @return array
*/
public function resolveArraySection(string $section, $originalVal, $targetVal, $userVal): array
{
$changed = false;
$value = $this->resolveNestedArray($section, $originalVal, $targetVal, $userVal, $changed);
if ($changed) {
$this->jsonChanges[$section] = $value;
}
return $this->jsonChanges;
}
/**
* Process changes to arrays that could be nested
*
* Associative arrays are resolved recursively and non-associative arrays are treated as unordered sets
*
* @param string $field
* @param array|mixed|null $originalVal
* @param array|mixed|null $targetVal
* @param array|mixed|null $userVal
* @param bool $changed
* @return array|mixed|null null/empty array indicates to remove the entry from parent
*/
public function resolveNestedArray(string $field, $originalVal, $targetVal, $userVal, bool &$changed)
{
$result = $userVal === null ? [] : $userVal;
if (is_array($originalVal) && is_array($targetVal) && is_array($userVal)) {
$assocResult = $this->resolveAssociativeArray(
$field,
$originalVal,
$targetVal,
$userVal,
$changed
);
$flatResult = $this->resolveFlatArray(
$field,
$originalVal,
$targetVal,
$userVal,
$changed
);
$result = array_merge($flatResult, $assocResult);
} else {
// Some or all of the values aren't arrays so they should all be compared as non-array values
$action = $this->findResolution($field, $originalVal, $targetVal, $userVal);
$prettyTargetVal = json_encode($targetVal, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
if ($action == self::ADD_VAL) {
$changed = true;
$this->console->labeledVerbose("Adding $field entry: $prettyTargetVal");
$result = $targetVal;
} elseif ($action == self::CHANGE_VAL) {
$changed = true;
$this->console->labeledVerbose("Updating $field entry: $prettyTargetVal");
$result = $targetVal;
} elseif ($action == self::REMOVE_VAL) {
$changed = true;
$this->console->labeledVerbose("Removing $field entry");
$result = null;
}
}
return $result;
}
/**
* Process changes to the non-associative portion of an array
*
* @param string $field
* @param array $originalArray
* @param array $targetArray
* @param array $userArray
* @param bool $changed
* @return array
*/
protected function resolveFlatArray(
string $field,
array $originalArray,
array $targetArray,
array $userArray,
bool &$changed
): array {
$originalFlatPart = array_filter($originalArray, 'is_int', ARRAY_FILTER_USE_KEY);
$targetFlatPart = array_filter($targetArray, 'is_int', ARRAY_FILTER_USE_KEY);
$result = array_filter($userArray, 'is_int', ARRAY_FILTER_USE_KEY);
$toAdd = array_diff(array_diff($targetFlatPart, $originalFlatPart), $result);
if ($toAdd !== []) {
$changed = true;
$this->console->labeledVerbose("Adding $field entries: " . implode(', ', $toAdd));
$result = array_unique(array_merge($result, $toAdd));
}
$toRemove = array_intersect(array_diff($originalFlatPart, $targetFlatPart), $result);
if ($toRemove !== []) {
$changed = true;
$this->console->labeledVerbose("Removing $field entries: " . implode(', ', $toRemove));
$result = array_diff($result, $toRemove);
}
return $result;
}
/**
* Process changes to the associative portion of an array that could be nested
*
* @param string $field
* @param array $originalArray
* @param array $targetArray
* @param array $userArray
* @param bool $changed
* @return array
*/
protected function resolveAssociativeArray(
string $field,
array $originalArray,
array $targetArray,
array $userArray,
bool &$changed
): array {
$originalAssocPart = array_filter($originalArray, 'is_string', ARRAY_FILTER_USE_KEY);
$targetAssocPart = array_filter($targetArray, 'is_string', ARRAY_FILTER_USE_KEY);
$userAssocPart = array_filter($userArray, 'is_string', ARRAY_FILTER_USE_KEY);
$result = $userAssocPart;
$commerceKeys = array_unique(
array_merge(array_keys($originalAssocPart), array_keys($targetAssocPart))
);
foreach ($commerceKeys as $key) {
if (key_exists($key, $originalAssocPart)) {
$originalNestedVal = $originalAssocPart[$key];
} else {
$originalNestedVal = [];
}
if (key_exists($key, $targetAssocPart)) {
$targetNestedVal = $targetAssocPart[$key];
} else {
$targetNestedVal = [];
}
if (key_exists($key, $userAssocPart)) {
$userNestedVal = $userAssocPart[$key];
} else {
$userNestedVal = [];
}
$value = $this->resolveNestedArray(
"$field.$key",
$originalNestedVal,
$targetNestedVal,
$userNestedVal,
$changed
);
if ($value === null || $value === []) {
if (key_exists($key, $result)) {
$changed = true;
unset($result[$key]);
}
} else {
$result[$key] = $value;
}
}
return $result;
}
/**
* Get the order to use for a link section if local and target versions disagree
*
* @param string $section
* @param string[] $originalOrder
* @param string[] $targetOrder
* @param string[] $userOrder
* @param bool $changed
* @return string[]
*/
protected function getLinkOrderOverride(
string $section,
array $originalOrder,
array $targetOrder,
array $userOrder,
bool &$changed
): array {
$overrideOrder = [];
$conflictTargetOrder = array_values(array_intersect($targetOrder, $userOrder));
$conflictUserOrder = array_values(array_intersect($userOrder, $targetOrder));
$overrideOptLabel = $this->overrideOptLabel;
$interactiveOptLabel = $this->interactiveOptLabel;
// Check if the user's link order does not match the target section for links that appear in both
if ($conflictTargetOrder != $conflictUserOrder) {
$conflictOrigOrder = array_values(array_intersect($originalOrder, $targetOrder));
// Check if the user's order is different than the target order because the order has changed between
// the original and target magento/project versions
if ($conflictOrigOrder !== $conflictUserOrder) {
$targetLabel = $this->retriever->getTargetLabel();
$userOrderDesc = " [\n " . implode(",\n ", $conflictUserOrder) . "\n ]";
$targetOrderDesc = " [\n " . implode(",\n ", $conflictTargetOrder) . "\n ]";
$conflictDesc = "$targetLabel is trying to change the existing order of the $section section.\n" .
"Local order:\n$userOrderDesc\n$targetLabel order:\n$targetOrderDesc\n";
$shouldOverride = $this->overrideUserValues;
if ($this->overrideUserValues) {
$this->console->log($conflictDesc);
$this->console->log("Overriding local order due to --$overrideOptLabel.");
} else {
$shouldOverride = $this->console->ask(
"$conflictDesc\nWould you like to override the local order?"
);
}
if (!$shouldOverride) {
$this->console->comment("$conflictDesc but it will not be changed. Re-run using " .
"--$overrideOptLabel or --$interactiveOptLabel to override with the suggested order.");
$overrideOrder = $conflictUserOrder;
} else {
$overrideOrder = $conflictTargetOrder;
}
} else {
$overrideOrder = $conflictTargetOrder;
}
}
if ($overrideOrder !== []) {
$changed = true;
$prettyOrder = " [\n " . implode(",\n ", $overrideOrder) . "\n ]";
$this->console->labeledVerbose("Updating $section order:\n$prettyOrder");
}
return $overrideOrder;
}
/**
* Construct a comparison function to use in sorting an array of links by prioritized order lists
*
* @param string[] $overrideOrder
* @param string[] $targetOrder
* @param string[] $userOrder
* @return Closure
*/
protected function buildLinkOrderComparator(array $overrideOrder, array $targetOrder, array $userOrder): Closure
{
$prioritizedOrderings = [$overrideOrder, $targetOrder, $userOrder];
return function ($link1, $link2) use ($prioritizedOrderings) {
/**
* @var Link $link1
* @var Link $link2
*/
$package1 = $link1->getTarget();
$package2 = $link2->getTarget();
// Check each ordering array to see if it contains both links and if so use their positions to sort
// If the ordering array does not contain both links, try the next one
foreach ($prioritizedOrderings as $sortOrder) {
$index1 = array_search($package1, $sortOrder);
$index2 = array_search($package2, $sortOrder);
if ($index1 !== false && $index2 !== false) {
if ($index1 == $index2) {
return 0;
} else {
return $index1 < $index2 ? -1 : 1;
}
}
}
// None of the ordering arrays contain both elements, so their relative positions in the sorted array
// do not matter
return 0;
};
}
}