Further correct and disambigutate ref selectors passed to Git on the CLI

Summary: Ref T13589. In D21510, not every ref selector got touched, and this isn't a valid construction in Git: ``` $ git ls-tree ... -- '' ``` Thus: - Disambiguate more (all?) ref selectors. - Correct the construction of "git ls-tree" when there is no path. - Clean some stuff up: make the construction of some flags and arguments more explicit, get rid of a needless "%C", prefer "%Ls" over acrobatics, etc. Test Plan: Browsed/updated a local Git repository. (This change is somewhat difficult to test exhaustively, as evidenced by the "ls-tree" issue in D21510.) Maniphest Tasks: T13589 Differential Revision: https://secure.phabricator.com/D21511
2024-11-25 16:22:43 +01:00 · 2021-01-20 10:49:41 -08:00 · 2021-01-20 10:49:41 -08:00 · 0e28105ff7
commit 0e28105ff7
parent ea9cb0b625
15 changed files with 103 additions and 67 deletions
--- a/src/applications/diffusion/conduit/DiffusionBrowseQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionBrowseQueryConduitAPIMethod.php
@ -35,22 +35,26 @@ final class DiffusionBrowseQueryConduitAPIMethod
  protected function getGitResult(ConduitAPIRequest $request) {
    $drequest = $this->getDiffusionRequest();
    $repository = $drequest->getRepository();
+
    $path = $request->getValue('path');
+    if (!strlen($path)) {
+      $path = null;
+    }
+
    $commit = $request->getValue('commit');
    $offset = (int)$request->getValue('offset');
    $limit = (int)$request->getValue('limit');
    $result = $this->getEmptyResultSet();

-    if ($path == '') {
+    if ($path === null) {
      // Fast path to improve the performance of the repository view; we know
      // the root is always a tree at any commit and always exists.
      $stdout = 'tree';
    } else {
      try {
        list($stdout) = $repository->execxLocalCommand(
-          'cat-file -t -- %s:%s',
-          $commit,
-          $path);
+          'cat-file -t -- %s',
+          sprintf('%s:%s', $commit, $path));
      } catch (CommandException $e) {
        // The "cat-file" command may fail if the path legitimately does not
        // exist, but it may also fail if the path is a submodule. This can
@ -121,14 +125,20 @@ final class DiffusionBrowseQueryConduitAPIMethod
      return $result;
    }

+    if ($path === null) {
+      list($stdout) = $repository->execxLocalCommand(
+        'ls-tree -z -l %s --',
+        gitsprintf('%s', $commit));
+    } else {
      list($stdout) = $repository->execxLocalCommand(
        'ls-tree -z -l %s -- %s',
        gitsprintf('%s', $commit),
        $path);
+    }

    $submodules = array();

-    if (strlen($path)) {
+    if ($path !== null) {
      $prefix = rtrim($path, '/').'/';
    } else {
      $prefix = '';
@ -226,8 +236,8 @@ final class DiffusionBrowseQueryConduitAPIMethod
          $dict[$key] = $value;
        }

-        foreach ($submodules as $path) {
-          $full_path = $path->getFullPath();
+        foreach ($submodules as $submodule_path) {
+          $full_path = $submodule_path->getFullPath();
          $key = 'submodule.'.$full_path.'.url';
          if (isset($dict[$key])) {
            $path->setExternalURI($dict[$key]);
--- a/src/applications/diffusion/conduit/DiffusionHistoryQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionHistoryQueryConduitAPIMethod.php
@ -45,7 +45,12 @@ final class DiffusionHistoryQueryConduitAPIMethod
    $repository = $drequest->getRepository();
    $commit_hash = $request->getValue('commit');
    $against_hash = $request->getValue('against');
+
    $path = $request->getValue('path');
+    if (!strlen($path)) {
+      $path = null;
+    }
+
    $offset = $request->getValue('offset');
    $limit = $request->getValue('limit');

@ -55,18 +60,27 @@ final class DiffusionHistoryQueryConduitAPIMethod
      $commit_range = $commit_hash;
    }

+    $argv = array();
+
+    $argv[] = '--skip';
+    $argv[] = $offset;
+
+    $argv[] = '--max-count';
+    $argv[] = $limit;
+
+    $argv[] = '--format=%H:%P';
+
+    $argv[] = gitsprintf('%s', $commit_range);
+
+    $argv[] = '--';
+
+    if ($path !== null) {
+      $argv[] = $path;
+    }
+
    list($stdout) = $repository->execxLocalCommand(
-      'log '.
-        '--skip=%d '.
-        '-n %d '.
-        '--pretty=format:%s '.
-        '%s -- %C',
-      $offset,
-      $limit,
-      '%H:%P',
-      gitsprintf('%s', $commit_range),
-      // Git omits merge commits if the path is provided, even if it is empty.
-      (strlen($path) ? csprintf('%s', $path) : ''));
+      'log %Ls',
+      $argv);

    $lines = explode("\n", trim($stdout));
    $lines = array_filter($lines);
--- a/src/applications/diffusion/conduit/DiffusionInternalGitRawDiffQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionInternalGitRawDiffQueryConduitAPIMethod.php
@ -43,9 +43,9 @@ final class DiffusionInternalGitRawDiffQueryConduitAPIMethod
    // it requires the commit to have a parent that we can diff against. The
    // first commit doesn't, so "commit^" is not a valid ref.
    list($parents) = $repository->execxLocalCommand(
-      'log -n1 --format=%s %s',
-      '%P',
-      $commit);
+      'log -n1 %s %s --',
+      '--format=%P',
+      gitsprintf('%s', $commit));
    $use_log = !strlen(trim($parents));

    // First, get a fast raw diff without "--find-copies-harder". This flag
@ -96,18 +96,18 @@ final class DiffusionInternalGitRawDiffQueryConduitAPIMethod
      // NOTE: "--pretty=format: " is to disable diff output, we only want the
      // part we get from "--raw".
      $future = $repository->getLocalCommandFuture(
-        'log %Ls --pretty=format: %s',
+        'log %Ls --pretty=format: %s --',
        $flags,
-        $commit);
+        gitsprintf('%s', $commit));
    } else {
      // Otherwise, we can use "diff", which will give us output for merges.
      // We diff against the first parent, as this is generally the expectation
      // and results in sensible behavior.
      $future = $repository->getLocalCommandFuture(
-        'diff %Ls %s^1 %s',
+        'diff %Ls %s %s --',
        $flags,
-        $commit,
-        $commit);
+        gitsprintf('%s^1', $commit),
+        gitsprintf('%s', $commit));
    }

    // Don't spend more than 30 seconds generating the slower output.
--- a/src/applications/diffusion/conduit/DiffusionLastModifiedQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionLastModifiedQueryConduitAPIMethod.php
@ -33,7 +33,8 @@ final class DiffusionLastModifiedQueryConduitAPIMethod
        continue;
      }
      list($hash) = $repository->execxLocalCommand(
-        'log -n1 --format=%%H %s -- %s',
+        'log -n1 %s %s -- %s',
+        '--format=%H',
        gitsprintf('%s', $commit),
        $path);
      $results[$path] = trim($hash);
--- a/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionMergedCommitsQueryConduitAPIMethod.php
@ -35,8 +35,8 @@ final class DiffusionMergedCommitsQueryConduitAPIMethod
    $limit = $this->getLimit($request);

    list($parents) = $repository->execxLocalCommand(
-      'log -n 1 --format=%s %s --',
-      '%P',
+      'log -n 1 %s %s --',
+      '--format=%P',
      gitsprintf('%s', $commit));

    $parents = preg_split('/\s+/', trim($parents));
@ -50,10 +50,10 @@ final class DiffusionMergedCommitsQueryConduitAPIMethod

    $first_parent = head($parents);
    list($logs) = $repository->execxLocalCommand(
-      'log -n %d --format=%s %s %s --',
+      'log -n %d %s %s %s --',
      // NOTE: "+ 1" accounts for the merge commit itself.
      $limit + 1,
-      '%H',
+      '--format=%H',
      gitsprintf('%s', $commit),
      gitsprintf('%s', '^'.$first_parent));

--- a/src/applications/diffusion/conduit/DiffusionRefsQueryConduitAPIMethod.php
+++ b/src/applications/diffusion/conduit/DiffusionRefsQueryConduitAPIMethod.php
@ -28,9 +28,9 @@ final class DiffusionRefsQueryConduitAPIMethod
    $commit = $request->getValue('commit');

    list($stdout) = $repository->execxLocalCommand(
-      'log --format=%s -n 1 %s --',
-      '%d',
-      $commit);
+      'log -n 1 %s %s --',
+      '--format=%d',
+      gitsprintf('%s', $commit));

    // %d, gives a weird output format
    // similar to (remote/one, remote/two, remote/three)
--- a/src/applications/diffusion/engine/DiffusionCommitHookEngine.php
+++ b/src/applications/diffusion/engine/DiffusionCommitHookEngine.php
@ -608,9 +608,9 @@ final class DiffusionCommitHookEngine extends Phobject {
      // repository. Particularly, this will cover the cases of a new branch, a
      // completely moved tag, etc.
      $futures[$key] = $this->getRepository()->getLocalCommandFuture(
-        'log --format=%s %s --not --all',
-        '%H',
-        $ref_update->getRefNew());
+        'log %s %s --not --all --',
+        '--format=%H',
+        gitsprintf('%s', $ref_update->getRefNew()));
    }

    $content_updates = array();
--- a/src/applications/diffusion/query/filecontent/DiffusionGitFileContentQuery.php
+++ b/src/applications/diffusion/query/filecontent/DiffusionGitFileContentQuery.php
@ -10,9 +10,8 @@ final class DiffusionGitFileContentQuery extends DiffusionFileContentQuery {
    $commit = $drequest->getCommit();

    return $repository->getLocalCommandFuture(
-      'cat-file blob -- %s:%s',
-      $commit,
-      $path);
+      'cat-file blob -- %s',
+      sprintf('%s:%s', $commit, $path));
  }

 }
--- a/src/applications/diffusion/query/lowlevel/DiffusionLowLevelCommitQuery.php
+++ b/src/applications/diffusion/query/lowlevel/DiffusionLowLevelCommitQuery.php
@ -55,12 +55,15 @@ final class DiffusionLowLevelCommitQuery
      $split_body = true;
    }

-    // Even though we pass --encoding here, git doesn't always succeed, so
-    // we try a little harder, since git *does* tell us what the actual encoding
-    // is correctly (unless it doesn't; encoding is sometimes empty).
-    list($info) = $repository->execxLocalCommand(
-      'log -n 1 --encoding=%s --format=%s %s --',
-      'UTF-8',
+    $argv = array();
+
+    $argv[] = '-n';
+    $argv[] = '1';
+
+    $argv[] = '--encoding=UTF-8';
+
+    $argv[] = sprintf(
+      '--format=%s',
      implode(
        '%x00',
        array(
@ -78,8 +81,15 @@ final class DiffusionLowLevelCommitQuery
          // so include an explicit terminator: this makes sure the exact
          // body text is surrounded by "\0" characters.
          '~',
-        )),
-      $this->identifier);
+        )));
+
+    // Even though we pass --encoding here, git doesn't always succeed, so
+    // we try a little harder, since git *does* tell us what the actual encoding
+    // is correctly (unless it doesn't; encoding is sometimes empty).
+    list($info) = $repository->execxLocalCommand(
+      'log -n 1 %Ls %s --',
+      $argv,
+      gitsprintf('%s', $this->identifier));

    $parts = explode("\0", $info);
    $encoding = array_shift($parts);
--- a/src/applications/diffusion/query/lowlevel/DiffusionLowLevelFilesizeQuery.php
+++ b/src/applications/diffusion/query/lowlevel/DiffusionLowLevelFilesizeQuery.php
@ -33,7 +33,7 @@ final class DiffusionLowLevelFilesizeQuery

    $paths_future = $repository->getLocalCommandFuture(
      'diff-tree -z -r --no-commit-id %s --',
-      $identifier);
+      gitsprintf('%s', $identifier));

    // With "-z" we get "<fields>\0<filename>\0" for each line. Process the
    // delimited text as "<fields>, <filename>" pairs.
--- a/src/applications/diffusion/query/lowlevel/DiffusionLowLevelParentsQuery.php
+++ b/src/applications/diffusion/query/lowlevel/DiffusionLowLevelParentsQuery.php
@ -37,8 +37,8 @@ final class DiffusionLowLevelParentsQuery
    $repository = $this->getRepository();

    list($stdout) = $repository->execxLocalCommand(
-      'log -n 1 --format=%s %s --',
-      '%P',
+      'log -n 1 %s %s --',
+      '--format=%P',
      gitsprintf('%s', $this->identifier));

    return preg_split('/\s+/', trim($stdout));
--- a/src/applications/diffusion/query/rawdiff/DiffusionGitRawDiffQuery.php
+++ b/src/applications/diffusion/query/rawdiff/DiffusionGitRawDiffQuery.php
@ -23,8 +23,8 @@ final class DiffusionGitRawDiffQuery extends DiffusionRawDiffQuery {
      // Check if this is the root commit by seeing if it has parents, since
      // `git diff X^ X` does not work if "X" is the initial commit.
      list($parents) = $repository->execxLocalCommand(
-        'log -n 1 --format=%s %s --',
-        '%P',
+        'log -n 1 %s --',
+        '--format=%P',
        gitsprintf('%s', $commit));

      if (strlen(trim($parents))) {
--- a/src/applications/repository/daemon/PhabricatorGitGraphStream.php
+++ b/src/applications/repository/daemon/PhabricatorGitGraphStream.php
@ -19,13 +19,13 @@ final class PhabricatorGitGraphStream

    if ($start_commit !== null) {
      $future = $repository->getLocalCommandFuture(
-        'log --format=%s %s --',
-        '%H%x01%P%x01%ct',
-        $start_commit);
+        'log %s %s --',
+        '--format=%H%x01%P%x01%ct',
+        gitsprintf('%s', $start_commit));
    } else {
      $future = $repository->getLocalCommandFuture(
-        'log --format=%s --all --',
-        '%H%x01%P%x01%ct');
+        'log %s --all --',
+        '--format=%H%x01%P%x01%ct');
    }

    $this->iterator = new LinesOfALargeExecFuture($future);
--- a/src/applications/repository/engine/PhabricatorRepositoryRefEngine.php
+++ b/src/applications/repository/engine/PhabricatorRepositoryRefEngine.php
@ -483,17 +483,17 @@ final class PhabricatorRepositoryRefEngine
          $ref_list = implode("\n", $ref_list)."\n";

          $future = $this->getRepository()->getLocalCommandFuture(
-            'log --format=%s --stdin',
-            '%H');
+            'log %s --stdin --',
+            '--format=%H');

          list($stdout) = $future
            ->write($ref_list)
            ->resolvex();
        } else {
          list($stdout) = $this->getRepository()->execxLocalCommand(
-            'log --format=%s %s',
-            '%H',
-            $new_head);
+            'log %s %s --',
+            '--format=%H',
+            gitsprintf('%s', $new_head));
        }

        $stdout = trim($stdout);
--- a/src/applications/repository/engine/tests/PhabricatorWorkingCopyDiscoveryTestCase.php
+++ b/src/applications/repository/engine/tests/PhabricatorWorkingCopyDiscoveryTestCase.php
@ -4,6 +4,8 @@ final class PhabricatorWorkingCopyDiscoveryTestCase
  extends PhabricatorWorkingCopyTestCase {

  public function testSubversionCommitDiscovery() {
+    $this->requireBinaryForTest('svn');
+
    $refs = $this->discoverRefs('ST');
    $this->assertEqual(
      array(