SYNOPSIS
--------
[verse]
-'git-fsck' [--tags] [--root] [--unreachable] [--cache] [--no-reflogs]
- [--full] [--strict] [<object>*]
+'git fsck' [--tags] [--root] [--unreachable] [--cache] [--no-reflogs]
+ [--full] [--strict] [--verbose] [--lost-found] [<object>*]
DESCRIPTION
-----------
<object>::
An object to treat as the head of an unreachability trace.
+
-If no objects are given, git-fsck defaults to using the
-index file and all SHA1 references in .git/refs/* as heads.
+If no objects are given, 'git-fsck' defaults to using the
+index file, all SHA1 references in .git/refs/*, and all reflogs (unless
+--no-reflogs is given) as heads.
--unreachable::
Print out objects that exist but that aren't readable from any
objects that triggers this check, but it is recommended
to check new projects with this flag.
+--verbose::
+ Be chatty.
+
+--lost-found::
+ Write dangling objects into .git/lost-found/commit/ or
+ .git/lost-found/other/, depending on type. If the object is
+ a blob, the contents are written into the file, rather than
+ its object name.
+
It tests SHA1 and general object sanity, and it does full tracking of
the resulting reachability and everything else. It prints out any
corruption it finds (missing or bad objects), and if you use the
So for example
- git-fsck --unreachable HEAD $(cat .git/refs/heads/*)
+ git fsck --unreachable HEAD \
+ $(git for-each-ref --format="%(objectname)" refs/heads)
will do quite a _lot_ of verification on the tree. There are a few
extra validity tests to be added (make sure that tree objects are
-sorted properly etc), but on the whole if "git-fsck" is happy, you
+sorted properly etc), but on the whole if 'git-fsck' is happy, you
do have a valid tree.
Any corrupt objects you will have to find in backups or other archives
-(i.e., you can just remove them and do an "rsync" with some other site in
+(i.e., you can just remove them and do an 'rsync' with some other site in
the hopes that somebody else has the object you have corrupted).
Of course, "valid tree" doesn't mean that it wasn't generated by some
GIT
---
-Part of the gitlink:git[7] suite
-
+Part of the linkgit:git[1] suite