Browse Source

git-fsck-objects is now synonym to git-fsck

Signed-off-by: Junio C Hamano <junkio@cox.net>
maint
Junio C Hamano 18 years ago
parent
commit
df391b192d
  1. 1
      .gitignore
  2. 2
      Documentation/cmd-list.perl
  3. 2
      Documentation/core-intro.txt
  4. 4
      Documentation/everyday.txt
  5. 128
      Documentation/git-fsck-objects.txt
  6. 139
      Documentation/git-fsck.txt
  7. 2
      Documentation/git-pack-redundant.txt
  8. 2
      Documentation/git-prune.txt
  9. 3
      Makefile
  10. 2
      fsck.c
  11. 2
      git-lost-found.sh
  12. 2
      http-fetch.c
  13. 2
      t/t1410-reflog.sh
  14. 6
      t/t5500-fetch-pack.sh
  15. 2
      t/t5710-info-alternate.sh

1
.gitignore vendored

@ -42,6 +42,7 @@ git-findtags @@ -42,6 +42,7 @@ git-findtags
git-fmt-merge-msg
git-for-each-ref
git-format-patch
git-fsck
git-fsck-objects
git-gc
git-get-tar-commit-id

2
Documentation/cmd-list.perl

@ -97,7 +97,7 @@ git-fetch-pack synchingrepositories @@ -97,7 +97,7 @@ git-fetch-pack synchingrepositories
git-fmt-merge-msg purehelpers
git-for-each-ref plumbinginterrogators
git-format-patch mainporcelain
git-fsck-objects ancillaryinterrogators
git-fsck ancillaryinterrogators
git-gc mainporcelain
git-get-tar-commit-id ancillaryinterrogators
git-grep mainporcelain

2
Documentation/core-intro.txt

@ -82,7 +82,7 @@ size> + <byte\0> + <binary object data>. @@ -82,7 +82,7 @@ size> + <byte\0> + <binary object data>.

The structured objects can further have their structure and
connectivity to other objects verified. This is generally done with
the `git-fsck-objects` program, which generates a full dependency graph
the `git-fsck` program, which generates a full dependency graph
of all objects, and verifies their internal consistency (in addition
to just verifying their superficial consistency through the hash).


4
Documentation/everyday.txt

@ -28,7 +28,7 @@ Everybody uses these commands to maintain git repositories. @@ -28,7 +28,7 @@ Everybody uses these commands to maintain git repositories.
* gitlink:git-init[1] or gitlink:git-clone[1] to create a
new repository.

* gitlink:git-fsck-objects[1] to check the repository for errors.
* gitlink:git-fsck[1] to check the repository for errors.

* gitlink:git-prune[1] to remove unused objects in the repository.

@ -43,7 +43,7 @@ Examples @@ -43,7 +43,7 @@ Examples
Check health and remove cruft.::
+
------------
$ git fsck-objects <1>
$ git fsck <1>
$ git count-objects <2>
$ git repack <3>
$ git gc <4>

128
Documentation/git-fsck-objects.txt

@ -8,132 +8,10 @@ git-fsck-objects - Verifies the connectivity and validity of the objects in the @@ -8,132 +8,10 @@ git-fsck-objects - Verifies the connectivity and validity of the objects in the

SYNOPSIS
--------
[verse]
'git-fsck-objects' [--tags] [--root] [--unreachable] [--cache]
[--full] [--strict] [<object>*]
'git-fsck-objects' ...

DESCRIPTION
-----------
Verifies the connectivity and validity of the objects in the database.

OPTIONS
-------
<object>::
An object to treat as the head of an unreachability trace.
+
If no objects are given, git-fsck-objects defaults to using the
index file and all SHA1 references in .git/refs/* as heads.

--unreachable::
Print out objects that exist but that aren't readable from any
of the reference nodes.

--root::
Report root nodes.

--tags::
Report tags.

--cache::
Consider any object recorded in the index also as a head node for
an unreachability trace.

--full::
Check not just objects in GIT_OBJECT_DIRECTORY
($GIT_DIR/objects), but also the ones found in alternate
object pools listed in GIT_ALTERNATE_OBJECT_DIRECTORIES
or $GIT_DIR/objects/info/alternates,
and in packed git archives found in $GIT_DIR/objects/pack
and corresponding pack subdirectories in alternate
object pools.

--strict::
Enable more strict checking, namely to catch a file mode
recorded with g+w bit set, which was created by older
versions of git. Existing repositories, including the
Linux kernel, git itself, and sparse repository have old
objects that triggers this check, but it is recommended
to check new projects with this flag.

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
'--unreachable' flag it will also print out objects that exist but
that aren't readable from any of the specified head nodes.

So for example

git-fsck-objects --unreachable HEAD $(cat .git/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-objects" 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
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
evil person, and the end result might be crap. git is a revision
tracking system, not a quality assurance system ;)

Extracted Diagnostics
---------------------

expect dangling commits - potential heads - due to lack of head information::
You haven't specified any nodes as heads so it won't be
possible to differentiate between un-parented commits and
root nodes.

missing sha1 directory '<dir>'::
The directory holding the sha1 objects is missing.

unreachable <type> <object>::
The <type> object <object>, isn't actually referred to directly
or indirectly in any of the trees or commits seen. This can
mean that there's another root node that you're not specifying
or that the tree is corrupt. If you haven't missed a root node
then you might as well delete unreachable nodes since they
can't be used.

missing <type> <object>::
The <type> object <object>, is referred to but isn't present in
the database.

dangling <type> <object>::
The <type> object <object>, is present in the database but never
'directly' used. A dangling commit could be a root node.

warning: git-fsck-objects: tree <tree> has full pathnames in it::
And it shouldn't...

sha1 mismatch <object>::
The database has an object who's sha1 doesn't match the
database value.
This indicates a serious data integrity problem.

Environment Variables
---------------------

GIT_OBJECT_DIRECTORY::
used to specify the object database root (usually $GIT_DIR/objects)

GIT_INDEX_FILE::
used to specify the index file of the index

GIT_ALTERNATE_OBJECT_DIRECTORIES::
used to specify additional object database roots (usually unset)

Author
------
Written by Linus Torvalds <torvalds@osdl.org>

Documentation
--------------
Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.

GIT
---
Part of the gitlink:git[7] suite

This is a synonym for gitlink:git-fsck[1]. Please refer to the
documentation of that command.

139
Documentation/git-fsck.txt

@ -0,0 +1,139 @@ @@ -0,0 +1,139 @@
git-fsck(1)
===========

NAME
----
git-fsck - Verifies the connectivity and validity of the objects in the database


SYNOPSIS
--------
[verse]
'git-fsck' [--tags] [--root] [--unreachable] [--cache]
[--full] [--strict] [<object>*]

DESCRIPTION
-----------
Verifies the connectivity and validity of the objects in the database.

OPTIONS
-------
<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.

--unreachable::
Print out objects that exist but that aren't readable from any
of the reference nodes.

--root::
Report root nodes.

--tags::
Report tags.

--cache::
Consider any object recorded in the index also as a head node for
an unreachability trace.

--full::
Check not just objects in GIT_OBJECT_DIRECTORY
($GIT_DIR/objects), but also the ones found in alternate
object pools listed in GIT_ALTERNATE_OBJECT_DIRECTORIES
or $GIT_DIR/objects/info/alternates,
and in packed git archives found in $GIT_DIR/objects/pack
and corresponding pack subdirectories in alternate
object pools.

--strict::
Enable more strict checking, namely to catch a file mode
recorded with g+w bit set, which was created by older
versions of git. Existing repositories, including the
Linux kernel, git itself, and sparse repository have old
objects that triggers this check, but it is recommended
to check new projects with this flag.

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
'--unreachable' flag it will also print out objects that exist but
that aren't readable from any of the specified head nodes.

So for example

git-fsck --unreachable HEAD $(cat .git/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
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
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
evil person, and the end result might be crap. git is a revision
tracking system, not a quality assurance system ;)

Extracted Diagnostics
---------------------

expect dangling commits - potential heads - due to lack of head information::
You haven't specified any nodes as heads so it won't be
possible to differentiate between un-parented commits and
root nodes.

missing sha1 directory '<dir>'::
The directory holding the sha1 objects is missing.

unreachable <type> <object>::
The <type> object <object>, isn't actually referred to directly
or indirectly in any of the trees or commits seen. This can
mean that there's another root node that you're not specifying
or that the tree is corrupt. If you haven't missed a root node
then you might as well delete unreachable nodes since they
can't be used.

missing <type> <object>::
The <type> object <object>, is referred to but isn't present in
the database.

dangling <type> <object>::
The <type> object <object>, is present in the database but never
'directly' used. A dangling commit could be a root node.

warning: git-fsck: tree <tree> has full pathnames in it::
And it shouldn't...

sha1 mismatch <object>::
The database has an object who's sha1 doesn't match the
database value.
This indicates a serious data integrity problem.

Environment Variables
---------------------

GIT_OBJECT_DIRECTORY::
used to specify the object database root (usually $GIT_DIR/objects)

GIT_INDEX_FILE::
used to specify the index file of the index

GIT_ALTERNATE_OBJECT_DIRECTORIES::
used to specify additional object database roots (usually unset)

Author
------
Written by Linus Torvalds <torvalds@osdl.org>

Documentation
--------------
Documentation by David Greaves, Junio C Hamano and the git-list <git@vger.kernel.org>.

GIT
---
Part of the gitlink:git[7] suite

2
Documentation/git-pack-redundant.txt

@ -21,7 +21,7 @@ given will be ignored when checking which packs are required. This makes the @@ -21,7 +21,7 @@ given will be ignored when checking which packs are required. This makes the
following command useful when wanting to remove packs which contain unreachable
objects.

git-fsck-objects --full --unreachable | cut -d ' ' -f3 | \
git-fsck --full --unreachable | cut -d ' ' -f3 | \
git-pack-redundant --all | xargs rm

OPTIONS

2
Documentation/git-prune.txt

@ -13,7 +13,7 @@ SYNOPSIS @@ -13,7 +13,7 @@ SYNOPSIS
DESCRIPTION
-----------

This runs `git-fsck-objects --unreachable` using all the refs
This runs `git-fsck --unreachable` using all the refs
available in `$GIT_DIR/refs`, optionally with additional set of
objects specified on the command line, and prunes all
objects unreachable from any of these head objects from the object database.

3
Makefile

@ -192,7 +192,7 @@ SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \ @@ -192,7 +192,7 @@ SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH)) \

# ... and all the rest that could be moved out of bindir to gitexecdir
PROGRAMS = \
git-convert-objects$X git-fetch-pack$X git-fsck-objects$X \
git-convert-objects$X git-fetch-pack$X git-fsck$X \
git-hash-object$X git-index-pack$X git-local-fetch$X \
git-merge-base$X \
git-daemon$X \
@ -214,6 +214,7 @@ EXTRA_PROGRAMS = @@ -214,6 +214,7 @@ EXTRA_PROGRAMS =
BUILT_INS = \
git-format-patch$X git-show$X git-whatchanged$X git-cherry$X \
git-get-tar-commit-id$X git-init$X git-repo-config$X \
git-fsck-objects$X \
$(patsubst builtin-%.o,git-%$X,$(BUILTIN_OBJS))

# what 'all' will build and 'install' will install, in gitexecdir

2
fsck-objects.c → fsck.c

@ -606,7 +606,7 @@ int main(int argc, char **argv) @@ -606,7 +606,7 @@ int main(int argc, char **argv)
continue;
}
if (*arg == '-')
usage("git-fsck-objects [--tags] [--root] [[--unreachable] [--cache] [--full] [--strict] <head-sha1>*]");
usage("git-fsck [--tags] [--root] [[--unreachable] [--cache] [--full] [--strict] <head-sha1>*]");
}

fsck_head_link();

2
git-lost-found.sh

@ -12,7 +12,7 @@ fi @@ -12,7 +12,7 @@ fi
laf="$GIT_DIR/lost-found"
rm -fr "$laf" && mkdir -p "$laf/commit" "$laf/other" || exit

git fsck-objects --full |
git fsck --full |
while read dangling type sha1
do
case "$dangling" in

2
http-fetch.c

@ -1069,7 +1069,7 @@ int main(int argc, const char **argv) @@ -1069,7 +1069,7 @@ int main(int argc, const char **argv)
fprintf(stderr,
"Some loose object were found to be corrupt, but they might be just\n"
"a false '404 Not Found' error message sent with incorrect HTTP\n"
"status code. Suggest running git fsck-objects.\n");
"status code. Suggest running git-fsck.\n");
}
return rc;
}

2
t/t1410-reflog.sh

@ -20,7 +20,7 @@ check_have () { @@ -20,7 +20,7 @@ check_have () {
}

check_fsck () {
output=$(git fsck-objects --full)
output=$(git fsck --full)
case "$1" in
'')
test -z "$output" ;;

6
t/t5500-fetch-pack.sh

@ -63,13 +63,13 @@ pull_to_client () { @@ -63,13 +63,13 @@ pull_to_client () {
case "$heads" in *B*) echo $BTIP > .git/refs/heads/B;; esac
git-symbolic-ref HEAD refs/heads/`echo $heads | sed -e 's/^\(.\).*$/\1/'`

test_expect_success "fsck" 'git-fsck-objects --full > fsck.txt 2>&1'
test_expect_success "fsck" 'git-fsck --full > fsck.txt 2>&1'

test_expect_success 'check downloaded results' \
'mv .git/objects/pack/pack-* . &&
p=`ls -1 pack-*.pack` &&
git-unpack-objects <$p &&
git-fsck-objects --full'
git-fsck --full'

test_expect_success "new object count after $number pull" \
'idx=`echo pack-*.idx` &&
@ -145,7 +145,7 @@ test_expect_success "clone shallow object count (part 2)" ' @@ -145,7 +145,7 @@ test_expect_success "clone shallow object count (part 2)" '
'

test_expect_success "fsck in shallow repo" \
"(cd shallow; git-fsck-objects --full)"
"(cd shallow; git-fsck --full)"

#test_done; exit


2
t/t5710-info-alternate.sh

@ -17,7 +17,7 @@ reachable_via() { @@ -17,7 +17,7 @@ reachable_via() {
}

test_valid_repo() {
git fsck-objects --full > fsck.log &&
git fsck --full > fsck.log &&
test `wc -l < fsck.log` = 0
}


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