[EGIT PATCH 21/26] Add debugging commands to interact with the new DirCache code
- Date: Mon, 11 Aug 2008 18:08:08 -0700
- From: "Shawn O. Pearce" <spearce@xxxxxxxxxxx>
- Subject: [EGIT PATCH 21/26] Add debugging commands to interact with the new DirCache code
These debug commands allow the command line user to read or write
the dircache, to exercise the code, and test it against C Git.
Signed-off-by: Shawn O. Pearce <spearce@xxxxxxxxxxx>
---
.../services/org.spearce.jgit.pgm.TextBuiltin | 5 ++
.../org/spearce/jgit/pgm/debug/MakeCacheTree.java | 67 ++++++++++++++++++
.../org/spearce/jgit/pgm/debug/ReadDirCache.java | 53 ++++++++++++++
.../org/spearce/jgit/pgm/debug/ShowCacheTree.java | 69 +++++++++++++++++++
.../org/spearce/jgit/pgm/debug/ShowDirCache.java | 72 ++++++++++++++++++++
.../org/spearce/jgit/pgm/debug/WriteDirCache.java | 54 +++++++++++++++
6 files changed, 320 insertions(+), 0 deletions(-)
create mode 100644 org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/MakeCacheTree.java
create mode 100644 org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ReadDirCache.java
create mode 100644 org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowCacheTree.java
create mode 100644 org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowDirCache.java
create mode 100644 org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/WriteDirCache.java
diff --git a/org.spearce.jgit.pgm/src/META-INF/services/org.spearce.jgit.pgm.TextBuiltin b/org.spearce.jgit.pgm/src/META-INF/services/org.spearce.jgit.pgm.TextBuiltin
index 734de3d..8ff815a 100644
--- a/org.spearce.jgit.pgm/src/META-INF/services/org.spearce.jgit.pgm.TextBuiltin
+++ b/org.spearce.jgit.pgm/src/META-INF/services/org.spearce.jgit.pgm.TextBuiltin
@@ -12,4 +12,9 @@ org.spearce.jgit.pgm.RevList
org.spearce.jgit.pgm.ShowRev
org.spearce.jgit.pgm.Tag
+org.spearce.jgit.pgm.debug.MakeCacheTree
+org.spearce.jgit.pgm.debug.ReadDirCache
+org.spearce.jgit.pgm.debug.ShowCacheTree
org.spearce.jgit.pgm.debug.ShowCommands
+org.spearce.jgit.pgm.debug.ShowDirCache
+org.spearce.jgit.pgm.debug.WriteDirCache
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/MakeCacheTree.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/MakeCacheTree.java
new file mode 100644
index 0000000..a7d7438
--- /dev/null
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/MakeCacheTree.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@xxxxxxxxxxx>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Git Development Community nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.spearce.jgit.pgm.debug;
+
+import org.spearce.jgit.dircache.DirCache;
+import org.spearce.jgit.dircache.DirCacheTree;
+import org.spearce.jgit.pgm.TextBuiltin;
+
+class MakeCacheTree extends TextBuiltin {
+ @Override
+ protected void run() throws Exception {
+ final DirCache cache = DirCache.read(db);
+ final DirCacheTree tree = cache.getCacheTree(true);
+ show(tree);
+ }
+
+ private void show(final DirCacheTree tree) {
+ out.print("\"");
+ out.print(tree.getPathString());
+ out.print("\"");
+ out.print(": ");
+ out.print(tree.getEntrySpan());
+ out.print(" entries");
+ out.print(", ");
+ out.print(tree.getChildCount());
+ out.print(" children");
+ out.println();
+
+ for (int i = 0; i < tree.getChildCount(); i++)
+ show(tree.getChild(i));
+ }
+}
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ReadDirCache.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ReadDirCache.java
new file mode 100644
index 0000000..d92a9fd
--- /dev/null
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ReadDirCache.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@xxxxxxxxxxx>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Git Development Community nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.spearce.jgit.pgm.debug;
+
+import org.spearce.jgit.dircache.DirCache;
+import org.spearce.jgit.pgm.TextBuiltin;
+
+class ReadDirCache extends TextBuiltin {
+ @Override
+ protected void run() throws Exception {
+ final int cnt = 100;
+ final long start = System.currentTimeMillis();
+ for (int i = 0; i < cnt; i++)
+ DirCache.read(db);
+ final long end = System.currentTimeMillis();
+ out.println(" average " + ((end - start) / cnt) + " ms/read");
+ }
+}
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowCacheTree.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowCacheTree.java
new file mode 100644
index 0000000..0683fa7
--- /dev/null
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowCacheTree.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@xxxxxxxxxxx>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Git Development Community nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.spearce.jgit.pgm.debug;
+
+import org.spearce.jgit.dircache.DirCache;
+import org.spearce.jgit.dircache.DirCacheTree;
+import org.spearce.jgit.pgm.TextBuiltin;
+
+class ShowCacheTree extends TextBuiltin {
+ @Override
+ protected void run() throws Exception {
+ final DirCache cache = DirCache.read(db);
+ final DirCacheTree tree = cache.getCacheTree(false);
+ if (tree == null)
+ throw die("no 'TREE' section in index");
+ show(tree);
+ }
+
+ private void show(final DirCacheTree tree) {
+ out.print("\"");
+ out.print(tree.getPathString());
+ out.print("\"");
+ out.print(": ");
+ out.print(tree.getEntrySpan());
+ out.print(" entries");
+ out.print(", ");
+ out.print(tree.getChildCount());
+ out.print(" children");
+ out.println();
+
+ for (int i = 0; i < tree.getChildCount(); i++)
+ show(tree.getChild(i));
+ }
+}
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowDirCache.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowDirCache.java
new file mode 100644
index 0000000..0822503
--- /dev/null
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/ShowDirCache.java
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@xxxxxxxxxxx>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Git Development Community nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.spearce.jgit.pgm.debug;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+import org.spearce.jgit.dircache.DirCache;
+import org.spearce.jgit.dircache.DirCacheEntry;
+import org.spearce.jgit.lib.FileMode;
+import org.spearce.jgit.pgm.TextBuiltin;
+
+class ShowDirCache extends TextBuiltin {
+ @Override
+ protected void run() throws Exception {
+ final SimpleDateFormat fmt;
+ fmt = new SimpleDateFormat("yyyyMMdd,HHmmss.SSS");
+
+ final DirCache cache = DirCache.read(db);
+ for (int i = 0; i < cache.getEntryCount(); i++) {
+ final DirCacheEntry ent = cache.getEntry(i);
+ final FileMode mode = FileMode.fromBits(ent.getRawMode());
+ final int len = ent.getLength();
+ final Date mtime = new Date(ent.getLastModified());
+
+ out.print(mode);
+ out.format(" %6d", len);
+ out.print(' ');
+ out.print(fmt.format(mtime));
+ out.print(' ');
+ out.print(ent.getObjectId());
+ out.print('\t');
+ out.print(ent.getPathString());
+ out.println();
+ }
+ }
+}
diff --git a/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/WriteDirCache.java b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/WriteDirCache.java
new file mode 100644
index 0000000..a613cbe
--- /dev/null
+++ b/org.spearce.jgit.pgm/src/org/spearce/jgit/pgm/debug/WriteDirCache.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2008, Shawn O. Pearce <spearce@xxxxxxxxxxx>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Git Development Community nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.spearce.jgit.pgm.debug;
+
+import org.spearce.jgit.dircache.DirCache;
+import org.spearce.jgit.pgm.TextBuiltin;
+
+class WriteDirCache extends TextBuiltin {
+ @Override
+ protected void run() throws Exception {
+ final DirCache cache = DirCache.read(db);
+ if (!cache.lock())
+ throw die("failed to lock index");
+ cache.read();
+ cache.write();
+ if (!cache.commit())
+ throw die("failed to commit index");
+ }
+}
--
1.6.0.rc2.22.g71b99
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