Parse commitId and shortMessage of a commented out line in rebase todo
A rebase todo file consists of regular non-comment action lines and comment lines. In case that a regular action line has been commented out (i.e. prefixed with a hash '#'), the RebaseTodoLine that is representing this line should hold the values for commitId and shortMessage even though it's a comment line. This allows to switch between comment and non-comment easily even after the file has been persisted and reread. Change-Id: I56ec2ba08eaf3772e2d74d937dd496209a744d4b Signed-off-by: Tobias Pfeifer <to.pfeifer@web.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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c3873b584f
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@ -63,11 +63,13 @@
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import org.eclipse.jgit.api.RebaseCommand.InteractiveHandler;
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import org.eclipse.jgit.api.RebaseCommand.Operation;
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import org.eclipse.jgit.api.RebaseResult.Status;
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import org.eclipse.jgit.api.errors.JGitInternalException;
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import org.eclipse.jgit.api.errors.RefNotFoundException;
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import org.eclipse.jgit.api.errors.UnmergedPathsException;
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import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
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import org.eclipse.jgit.dircache.DirCacheCheckout;
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import org.eclipse.jgit.junit.RepositoryTestCase;
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import org.eclipse.jgit.lib.AbbreviatedObjectId;
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import org.eclipse.jgit.lib.Constants;
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import org.eclipse.jgit.lib.ObjectId;
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import org.eclipse.jgit.lib.PersonIdent;
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@ -1745,6 +1747,123 @@ public void testLeadingSpacesRebaseTodo() throws Exception {
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assertEquals(Action.REWORD, steps.get(1).getAction());
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}
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@Test
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public void testRebaseShouldTryToParseValidLineMarkedAsComment()
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throws IOException {
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String todo = "# pick 1111111 Valid line commented out with space\n"
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+ "#edit 2222222 Valid line commented out without space\n"
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+ "# pick invalidLine Comment line at end\n";
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write(getTodoFile(), todo);
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List<RebaseTodoLine> steps = db.readRebaseTodo(GIT_REBASE_TODO, true);
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assertEquals(3, steps.size());
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RebaseTodoLine firstLine = steps.get(0);
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assertEquals("1111111", firstLine.getCommit().name());
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assertEquals("Valid line commented out with space",
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firstLine.getShortMessage());
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assertEquals("comment", firstLine.getAction().toToken());
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try {
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firstLine.setAction(Action.PICK);
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assertEquals("1111111", firstLine.getCommit().name());
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assertEquals("pick", firstLine.getAction().toToken());
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} catch (Exception e) {
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fail("Valid parsable RebaseTodoLine that has been commented out should allow to change the action, but failed");
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}
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assertEquals("2222222", steps.get(1).getCommit().name());
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assertEquals("comment", steps.get(1).getAction().toToken());
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assertEquals(null, steps.get(2).getCommit());
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assertEquals(null, steps.get(2).getShortMessage());
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assertEquals("comment", steps.get(2).getAction().toToken());
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assertEquals("# pick invalidLine Comment line at end", steps.get(2)
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.getComment());
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try {
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steps.get(2).setAction(Action.PICK);
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fail("A comment RebaseTodoLine that doesn't contain a valid parsable line should fail, but doesn't");
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} catch (Exception e) {
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// expected
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}
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}
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@SuppressWarnings("unused")
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@Test
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public void testRebaseTodoLineSetComment() throws Exception {
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try {
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new RebaseTodoLine("This is a invalid comment");
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fail("Constructing a comment line with invalid comment string should fail, but doesn't");
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} catch (JGitInternalException e) {
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// expected
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}
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RebaseTodoLine validCommentLine = new RebaseTodoLine(
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"# This is a comment");
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assertEquals(Action.COMMENT, validCommentLine.getAction());
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assertEquals("# This is a comment", validCommentLine.getComment());
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RebaseTodoLine actionLineToBeChanged = new RebaseTodoLine(Action.EDIT,
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AbbreviatedObjectId.fromString("1111111"), "short Message");
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assertEquals(null, actionLineToBeChanged.getComment());
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try {
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actionLineToBeChanged.setComment("invalid comment");
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fail("Setting a invalid comment string should fail but doesn't");
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} catch (JGitInternalException e) {
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assertEquals(null, actionLineToBeChanged.getComment());
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}
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actionLineToBeChanged.setComment("# valid comment");
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assertEquals("# valid comment", actionLineToBeChanged.getComment());
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try {
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actionLineToBeChanged.setComment("invalid comment");
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fail("Setting a invalid comment string should fail but doesn't");
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} catch (JGitInternalException e) {
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// expected
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// setting comment failed, but was successfully set before,
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// therefore it may not be altered since then
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assertEquals("# valid comment", actionLineToBeChanged.getComment());
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}
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try {
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actionLineToBeChanged.setComment("# line1 \n line2");
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actionLineToBeChanged.setComment("line1 \n line2");
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actionLineToBeChanged.setComment("\n");
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actionLineToBeChanged.setComment("# line1 \r line2");
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actionLineToBeChanged.setComment("line1 \r line2");
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actionLineToBeChanged.setComment("\r");
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actionLineToBeChanged.setComment("# line1 \n\r line2");
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actionLineToBeChanged.setComment("line1 \n\r line2");
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actionLineToBeChanged.setComment("\n\r");
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fail("Setting a multiline comment string should fail but doesn't");
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} catch (JGitInternalException e) {
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// expected
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}
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// Try setting valid comments
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actionLineToBeChanged.setComment("# valid comment");
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assertEquals("# valid comment", actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment("# \t \t valid comment");
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assertEquals("# \t \t valid comment",
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actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment("# ");
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assertEquals("# ", actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment("");
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assertEquals("", actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment(" ");
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assertEquals(" ", actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment("\t\t");
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assertEquals("\t\t", actionLineToBeChanged.getComment());
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actionLineToBeChanged.setComment(null);
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assertEquals(null, actionLineToBeChanged.getComment());
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}
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@Test
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public void testRebaseInteractiveReword() throws Exception {
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// create file1 on master
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@ -51,6 +51,7 @@
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import java.util.LinkedList;
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import java.util.List;
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import org.eclipse.jgit.lib.RebaseTodoLine.Action;
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import org.eclipse.jgit.util.IO;
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import org.eclipse.jgit.util.RawParseUtils;
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@ -88,8 +89,6 @@ public List<RebaseTodoLine> readRebaseTodo(String path,
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int tokenBegin = 0;
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List<RebaseTodoLine> r = new LinkedList<RebaseTodoLine>();
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while (ptr < buf.length) {
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RebaseTodoLine.Action action = null;
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AbbreviatedObjectId commit = null;
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tokenBegin = ptr;
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ptr = RawParseUtils.nextLF(buf, ptr);
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int lineStart = tokenBegin;
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@ -99,54 +98,106 @@ public List<RebaseTodoLine> readRebaseTodo(String path,
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// Handle comments
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if (buf[tokenBegin] == '#') {
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if (includeComments)
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r.add(new RebaseTodoLine(RawParseUtils.decode(buf,
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tokenBegin, lineEnd + 1)));
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continue;
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}
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// skip leading spaces, tabs, CR
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while (tokenBegin <= lineEnd
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&& (buf[tokenBegin] == ' ' || buf[tokenBegin] == '\t' || buf[tokenBegin] == '\r'))
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tokenBegin++;
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// Handle empty lines (maybe empty after skipping leading
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// whitespace)
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if (tokenBegin > lineEnd) {
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if (includeComments)
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r.add(new RebaseTodoLine(RawParseUtils.decode(buf,
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lineStart, 1 + lineEnd)));
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continue;
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}
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int nextSpace = RawParseUtils.next(buf, tokenBegin, ' ');
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int tokenCount = 0;
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while (tokenCount < 3 && nextSpace < ptr) {
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switch (tokenCount) {
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case 0:
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String actionToken = new String(buf, tokenBegin, nextSpace
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- tokenBegin - 1);
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tokenBegin = nextSpace;
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action = RebaseTodoLine.Action.parse(actionToken);
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break;
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case 1:
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if (action == null)
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break;
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nextSpace = RawParseUtils.next(buf, tokenBegin, ' ');
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String commitToken = new String(buf, tokenBegin, nextSpace
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- tokenBegin - 1);
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tokenBegin = nextSpace;
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commit = AbbreviatedObjectId.fromString(commitToken);
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break;
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case 2:
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if (action == null)
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break;
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r.add(new RebaseTodoLine(action, commit, RawParseUtils
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.decode(buf, tokenBegin, 1 + lineEnd)));
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break;
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parseComments(buf, tokenBegin, r, lineEnd);
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} else {
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// skip leading spaces+tabs+cr
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tokenBegin = nextParsableToken(buf, tokenBegin, lineEnd);
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// Handle empty lines (maybe empty after skipping leading
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// whitespace)
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if (tokenBegin == -1) {
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if (includeComments)
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r.add(new RebaseTodoLine(RawParseUtils.decode(buf,
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lineStart, 1 + lineEnd)));
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continue;
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}
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tokenCount++;
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RebaseTodoLine line = parseLine(buf, tokenBegin, lineEnd);
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if (line == null)
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continue;
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r.add(line);
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}
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}
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return r;
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}
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private static void parseComments(byte[] buf, int tokenBegin,
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List<RebaseTodoLine> r, int lineEnd) {
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RebaseTodoLine line = null;
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String commentString = RawParseUtils.decode(buf,
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tokenBegin, lineEnd + 1);
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try {
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int skip = tokenBegin + 1; // skip '#'
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skip = nextParsableToken(buf, skip, lineEnd);
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if (skip != -1) {
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// try to parse the line as non-comment
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line = parseLine(buf, skip, lineEnd);
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// successfully parsed as non-comment line
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// mark this line as a comment explicitly
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line.setAction(Action.COMMENT);
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// use the read line as comment string
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line.setComment(commentString);
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}
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} catch (Exception e) {
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// parsing as non-comment line failed
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line = null;
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} finally {
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if (line == null)
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line = new RebaseTodoLine(commentString);
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r.add(line);
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}
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}
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/**
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* Skip leading space, tab, CR and LF characters
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*
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* @param buf
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* @param tokenBegin
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* @param lineEnd
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* @return the token within the range of the given {@code buf} that doesn't
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* need to be skipped, {@code -1} if no such token found within the
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* range (i.e. empty line)
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*/
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private static int nextParsableToken(byte[] buf, int tokenBegin, int lineEnd) {
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while (tokenBegin <= lineEnd
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&& (buf[tokenBegin] == ' ' || buf[tokenBegin] == '\t' || buf[tokenBegin] == '\r'))
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tokenBegin++;
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if (tokenBegin > lineEnd)
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return -1;
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return tokenBegin;
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}
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private static RebaseTodoLine parseLine(byte[] buf, int tokenBegin,
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int lineEnd) {
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RebaseTodoLine.Action action = null;
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AbbreviatedObjectId commit = null;
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int nextSpace = RawParseUtils.next(buf, tokenBegin, ' ');
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int tokenCount = 0;
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while (tokenCount < 3 && nextSpace < lineEnd) {
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switch (tokenCount) {
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case 0:
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String actionToken = new String(buf, tokenBegin, nextSpace
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- tokenBegin - 1);
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tokenBegin = nextSpace;
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action = RebaseTodoLine.Action.parse(actionToken);
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if (action == null)
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return null; // parsing failed
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break;
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case 1:
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nextSpace = RawParseUtils.next(buf, tokenBegin, ' ');
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String commitToken = new String(buf, tokenBegin, nextSpace
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- tokenBegin - 1);
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tokenBegin = nextSpace;
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commit = AbbreviatedObjectId.fromString(commitToken);
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break;
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case 2:
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return new RebaseTodoLine(action, commit, RawParseUtils.decode(
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buf, tokenBegin, 1 + lineEnd));
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}
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tokenCount++;
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}
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return null;
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}
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/**
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* Write a file formatted like a git-rebase-todo file.
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*
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