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Add support for smudge filters 

If defined in .gitattributes call smudge filter during checkout.

To support checkout where current HEAD,index do not contain attributes
we need to also consider attributes from the tree we checkout. Therefore
CanonicalTreeParser has to learn how to provide attributes.

Change-Id: I168fdb81a8e1a9f991587b3e95a36550ea845f0a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
stable-4.3
Christian Halstrick 9 years ago committed by Matthias Sohn
parent
5d9f595eb8
commit
bd31555ee5
4 changed files with 234 additions and 19 deletions
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  1. 124
      org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java
  2. 7
      org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/DirCacheCheckoutTest.java
  3. 107
      org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java
  4. 7
      org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java

124
org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CheckoutCommandTest.java
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@ -72,12 +72,14 @@ import org.eclipse.jgit.api.errors.RefNotFoundException;
import org.eclipse.jgit.api.errors.TransportException;
import org.eclipse.jgit.dircache.DirCache;
import org.eclipse.jgit.dircache.DirCacheEntry;
import org.eclipse.jgit.junit.JGitTestUtil;
import org.eclipse.jgit.junit.RepositoryTestCase;
import org.eclipse.jgit.lib.ConfigConstants;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.Ref;
import org.eclipse.jgit.lib.RefUpdate;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.jgit.lib.Sets;
import org.eclipse.jgit.lib.StoredConfig;
import org.eclipse.jgit.revwalk.RevCommit;
import org.eclipse.jgit.storage.file.FileBasedConfig;
@ -86,6 +88,7 @@ import org.eclipse.jgit.transport.RemoteConfig;
import org.eclipse.jgit.transport.URIish;
import org.eclipse.jgit.util.FileUtils;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
public class CheckoutCommandTest extends RepositoryTestCase {
@ -556,4 +559,125 @@ public class CheckoutCommandTest extends RepositoryTestCase {
}
org.junit.Assume.assumeTrue(foundUnsmudged);
}
@Test
public void testSmudgeFilter_modifyExisting() throws IOException, GitAPIException {
File script = writeTempFile("sed s/o/e/g");
StoredConfig config = git.getRepository().getConfig();
config.setString("filter", "tstFilter", "smudge",
"sh " + slashify(script.getPath()));
config.save();
writeTrashFile(".gitattributes", "*.txt filter=tstFilter");
git.add().addFilepattern(".gitattributes").call();
git.commit().setMessage("add filter").call();
writeTrashFile("src/a.tmp", "x");
// Caution: we need a trailing '\n' since sed on mac always appends
// linefeeds if missing
writeTrashFile("src/a.txt", "x\n");
git.add().addFilepattern("src/a.tmp").addFilepattern("src/a.txt")
.call();
RevCommit content1 = git.commit().setMessage("add content").call();
writeTrashFile("src/a.tmp", "foo");
writeTrashFile("src/a.txt", "foo\n");
git.add().addFilepattern("src/a.tmp").addFilepattern("src/a.txt")
.call();
RevCommit content2 = git.commit().setMessage("changed content").call();
git.checkout().setName(content1.getName()).call();
git.checkout().setName(content2.getName()).call();
assertEquals(
"[.gitattributes, mode:100644, content:*.txt filter=tstFilter][Test.txt, mode:100644, content:Some change][src/a.tmp, mode:100644, content:foo][src/a.txt, mode:100644, content:foo\n]",
indexState(CONTENT));
assertEquals(Sets.of("src/a.txt"), git.status().call().getModified());
assertEquals("foo", read("src/a.tmp"));
assertEquals("fee\n", read("src/a.txt"));
}
@Test
public void testSmudgeFilter_createNew()
throws IOException, GitAPIException {
File script = writeTempFile("sed s/o/e/g");
StoredConfig config = git.getRepository().getConfig();
config.setString("filter", "tstFilter", "smudge",
"sh " + slashify(script.getPath()));
config.save();
writeTrashFile("foo", "foo");
git.add().addFilepattern("foo").call();
RevCommit initial = git.commit().setMessage("initial").call();
writeTrashFile(".gitattributes", "*.txt filter=tstFilter");
git.add().addFilepattern(".gitattributes").call();
git.commit().setMessage("add filter").call();
writeTrashFile("src/a.tmp", "foo");
// Caution: we need a trailing '\n' since sed on mac always appends
// linefeeds if missing
writeTrashFile("src/a.txt", "foo\n");
git.add().addFilepattern("src/a.tmp").addFilepattern("src/a.txt")
.call();
RevCommit content = git.commit().setMessage("added content").call();
git.checkout().setName(initial.getName()).call();
git.checkout().setName(content.getName()).call();
assertEquals(
"[.gitattributes, mode:100644, content:*.txt filter=tstFilter][Test.txt, mode:100644, content:Some change][foo, mode:100644, content:foo][src/a.tmp, mode:100644, content:foo][src/a.txt, mode:100644, content:foo\n]",
indexState(CONTENT));
assertEquals("foo", read("src/a.tmp"));
assertEquals("fee\n", read("src/a.txt"));
}
@Test
@Ignore
public void testSmudgeAndClean() throws IOException, GitAPIException {
// @TODO: fix this test
File clean_filter = writeTempFile("sed s/V1/@version/g -");
File smudge_filter = writeTempFile("sed s/@version/V1/g -");
Git git = new Git(db);
StoredConfig config = git.getRepository().getConfig();
config.setString("filter", "tstFilter", "smudge",
"sh " + slashify(smudge_filter.getPath()));
config.setString("filter", "tstFilter", "clean",
"sh " + slashify(clean_filter.getPath()));
config.save();
writeTrashFile(".gitattributes", "*.txt filter=tstFilter");
git.add().addFilepattern(".gitattributes").call();
git.commit().setMessage("add attributes").call();
writeTrashFile("filterTest.txt", "hello world, V1");
git.add().addFilepattern("filterTest.txt").call();
git.commit().setMessage("add filterText.txt").call();
assertEquals(
"[.gitattributes, mode:100644, content:*.txt filter=tstFilter][Test.txt, mode:100644, content:Some other change][filterTest.txt, mode:100644, content:hello world, @version]",
indexState(CONTENT));
git.checkout().setCreateBranch(true).setName("test2").call();
writeTrashFile("filterTest.txt", "bon giorno world, V1");
git.add().addFilepattern("filterTest.txt").call();
git.commit().setMessage("modified filterText.txt").call();
assertTrue(git.status().call().isClean());
assertEquals(
"[.gitattributes, mode:100644, content:*.txt filter=tstFilter][Test.txt, mode:100644, content:Some other change][filterTest.txt, mode:100644, content:bon giorno world, @version]",
indexState(CONTENT));
git.checkout().setName("refs/heads/test").call();
assertTrue(git.status().call().isClean());
assertEquals(
"[.gitattributes, mode:100644, content:*.txt filter=tstFilter][Test.txt, mode:100644, content:Some other change][filterTest.txt, mode:100644, content:hello world, @version]",
indexState(CONTENT));
assertEquals("hello world, V1", read("filterTest.txt"));
}
private File writeTempFile(String body) throws IOException {
File f = File.createTempFile("AddCommandTest_", "");
JGitTestUtil.write(f, body);
return f;
}
}

7
org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/DirCacheCheckoutTest.java
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@ -113,7 +113,7 @@ public class DirCacheCheckoutTest extends RepositoryTestCase {
return dco.getRemoved();
}
private Map<String, ObjectId> getUpdated() {
private Map<String, String> getUpdated() {
return dco.getUpdated();
}
@ -268,8 +268,6 @@ public class DirCacheCheckoutTest extends RepositoryTestCase {
@Test
public void testRules1thru3_NoIndexEntry() throws IOException {
ObjectId head = buildTree(mk("foo"));
TreeWalk tw = TreeWalk.forPath(db, "foo", head);
ObjectId objectId = tw.getObjectId(0);
ObjectId merge = db.newObjectInserter().insert(Constants.OBJ_TREE,
new byte[0]);
@ -279,10 +277,9 @@ public class DirCacheCheckoutTest extends RepositoryTestCase {
prescanTwoTrees(merge, head);
assertEquals(objectId, getUpdated().get("foo"));
assertTrue(getUpdated().containsKey("foo"));
merge = buildTree(mkmap("foo", "a"));
tw = TreeWalk.forPath(db, "foo", merge);
prescanTwoTrees(head, merge);

107
org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java vendored
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@ -52,15 +52,18 @@ import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.eclipse.jgit.api.errors.FilterFailedException;
import org.eclipse.jgit.errors.CheckoutConflictException;
import org.eclipse.jgit.errors.CorruptObjectException;
import org.eclipse.jgit.errors.IncorrectObjectTypeException;
import org.eclipse.jgit.errors.IndexWriteException;
import org.eclipse.jgit.errors.MissingObjectException;
import org.eclipse.jgit.internal.JGitText;
import org.eclipse.jgit.lib.Constants;
import org.eclipse.jgit.lib.CoreConfig.AutoCRLF;
import org.eclipse.jgit.lib.CoreConfig.SymLinks;
import org.eclipse.jgit.lib.FileMode;
import org.eclipse.jgit.lib.NullProgressMonitor;
import org.eclipse.jgit.lib.ObjectChecker;
import org.eclipse.jgit.lib.ObjectId;
import org.eclipse.jgit.lib.ObjectLoader;
@ -76,6 +79,7 @@ import org.eclipse.jgit.treewalk.WorkingTreeIterator;
import org.eclipse.jgit.treewalk.WorkingTreeOptions;
import org.eclipse.jgit.treewalk.filter.PathFilter;
import org.eclipse.jgit.util.FS;
import org.eclipse.jgit.util.FS.ExecutionResult;
import org.eclipse.jgit.util.FileUtils;
import org.eclipse.jgit.util.RawParseUtils;
import org.eclipse.jgit.util.SystemReader;
@ -85,9 +89,10 @@ import org.eclipse.jgit.util.io.AutoCRLFOutputStream;
* This class handles checking out one or two trees merging with the index.
*/
public class DirCacheCheckout {
private static final int MAX_EXCEPTION_TEXT_SIZE = 10 * 1024;
private Repository repo;
private HashMap<String, ObjectId> updated = new HashMap<String, ObjectId>();
private HashMap<String, String> updated = new HashMap<String, String>();
private ArrayList<String> conflicts = new ArrayList<String>();
@ -112,9 +117,9 @@ public class DirCacheCheckout {
private boolean emptyDirCache;
/**
* @return a list of updated paths and objectIds
* @return a list of updated paths and smudgeFilterCommands
*/
public Map<String, ObjectId> getUpdated() {
public Map<String, String> getUpdated() {
return updated;
}
@ -447,7 +452,8 @@ public class DirCacheCheckout {
for (String path : updated.keySet()) {
DirCacheEntry entry = dc.getEntry(path);
if (!FileMode.GITLINK.equals(entry.getRawMode()))
checkoutEntry(repo, entry, objectReader, false);
checkoutEntry(repo, entry, objectReader, false,
updated.get(path));
}
// commit the index builder - a new index is persisted
@ -996,9 +1002,12 @@ public class DirCacheCheckout {
removed.add(path);
}
private void update(String path, ObjectId mId, FileMode mode) {
private void update(String path, ObjectId mId, FileMode mode)
throws IOException {
if (!FileMode.TREE.equals(mode)) {
updated.put(path, mId);
updated.put(path,
walk.getFilterCommand(Constants.ATTR_FILTER_TYPE_SMUDGE));
DirCacheEntry entry = new DirCacheEntry(path, DirCacheEntry.STAGE_0);
entry.setObjectId(mId);
entry.setFileMode(mode);
@ -1150,7 +1159,7 @@ public class DirCacheCheckout {
*/
public static void checkoutEntry(Repository repo, DirCacheEntry entry,
ObjectReader or) throws IOException {
checkoutEntry(repo, entry, or, false);
checkoutEntry(repo, entry, or, false, null);
}
/**
@ -1186,6 +1195,46 @@ public class DirCacheCheckout {
*/
public static void checkoutEntry(Repository repo, DirCacheEntry entry,
ObjectReader or, boolean deleteRecursive) throws IOException {
checkoutEntry(repo, entry, or, deleteRecursive, null);
}
/**
* Updates the file in the working tree with content and mode from an entry
* in the index. The new content is first written to a new temporary file in
* the same directory as the real file. Then that new file is renamed to the
* final filename.
*
* <p>
* <b>Note:</b> if the entry path on local file system exists as a file, it
* will be deleted and if it exists as a directory, it will be deleted
* recursively, independently if has any content.
* </p>
*
* <p>
* TODO: this method works directly on File IO, we may need another
* abstraction (like WorkingTreeIterator). This way we could tell e.g.
* Eclipse that Files in the workspace got changed
* </p>
*
* @param repo
* repository managing the destination work tree.
* @param entry
* the entry containing new mode and content
* @param or
* object reader to use for checkout
* @param deleteRecursive
* true to recursively delete final path if it exists on the file
* system
* @param smudgeFilterCommand
* the filter command to be run for smudging the entry to be
* checked out
*
* @throws IOException
* @since 4.2
*/
public static void checkoutEntry(Repository repo, DirCacheEntry entry,
ObjectReader or, boolean deleteRecursive,
String smudgeFilterCommand) throws IOException {
ObjectLoader ol = or.open(entry.getObjectId());
File f = new File(repo.getWorkTree(), entry.getPathString());
File parentDir = f.getParentFile();
@ -1210,14 +1259,52 @@ public class DirCacheCheckout {
OutputStream channel = new FileOutputStream(tmpFile);
if (opt.getAutoCRLF() == AutoCRLF.TRUE)
channel = new AutoCRLFOutputStream(channel);
if (smudgeFilterCommand != null) {
ProcessBuilder filterProcessBuilder = fs
.runInShell(smudgeFilterCommand, new String[0]);
filterProcessBuilder.directory(repo.getWorkTree());
filterProcessBuilder.environment().put(Constants.GIT_DIR_KEY,
repo.getDirectory().getAbsolutePath());
ExecutionResult result;
int rc;
try {
// TODO: wire correctly with AUTOCRLF
result = fs.execute(filterProcessBuilder, ol.openStream());
rc = result.getRc();
if (rc == 0) {
result.getStdout().writeTo(channel,
NullProgressMonitor.INSTANCE);
}
} catch (IOException | InterruptedException e) {
throw new IOException(new FilterFailedException(e,
smudgeFilterCommand, entry.getPathString()));
} finally {
channel.close();
}
if (rc != 0) {
throw new IOException(new FilterFailedException(rc,
smudgeFilterCommand, entry.getPathString(),
result.getStdout().toByteArray(MAX_EXCEPTION_TEXT_SIZE),
RawParseUtils.decode(result.getStderr()
.toByteArray(MAX_EXCEPTION_TEXT_SIZE))));
}
} else {
try {
ol.copyTo(channel);
} finally {
channel.close();
}
entry.setLength(opt.getAutoCRLF() == AutoCRLF.TRUE ? //
tmpFile.length() // AutoCRLF wants on-disk-size
: (int) ol.getSize());
}
// The entry needs to correspond to the on-disk filesize. If the content
// was filtered (either by autocrlf handling or smudge filters) ask the
// filesystem again for the length. Otherwise the objectloader knows the
// size
if (opt.getAutoCRLF() == AutoCRLF.TRUE || smudgeFilterCommand != null) {
entry.setLength(tmpFile.length());
} else {
entry.setLength(ol.getSize());
}
if (opt.isFileMode() && fs.supportsExecute()) {
if (FileMode.EXECUTABLE_FILE.equals(entry.getRawMode())) {

7
org.eclipse.jgit/src/org/eclipse/jgit/lib/Constants.java
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@ -384,6 +384,13 @@ public final class Constants {
*/
public static final String ATTR_FILTER_TYPE_CLEAN = "clean";
/**
* smudge command name, used to call filter driver
*
* @since 4.2
*/
public static final String ATTR_FILTER_TYPE_SMUDGE = "smudge";
/** Name of the ignore file */
public static final String DOT_GIT_IGNORE = ".gitignore";

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