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Author SHA1 Message Date
Linus Torvalds
d6d3f9d012 This implements the new "recursive tree" write-tree. 
It's got some debugging printouts etc still in it, but testing on the
kernel seems to show that it does indeed fix the issue with huge tree
files for each commit.
 2005-04-09 17:09:34 -07:00
Linus Torvalds
4e6616ab77 Make fsck-cache warn about old-style tree objects that have full 
pathnames in them. We're migrating away from that.

This will cause tons of warnings for the current "sparse" archive,
but hell, better now than later.
 2005-04-09 15:47:03 -07:00
Linus Torvalds
f768846e34 Teach "fsck" and "read-tree" about recursive tree-nodes. 
This is totally untested, since we can't actually _write_ things that
way yet, but I'll get to that next, I hope. That should fix the
huge wasted space for kernel-sized tree objects.
 2005-04-09 15:36:41 -07:00
Linus Torvalds
16d4d1ba6c Make "fsck-cache" print out all the root commits it finds. 
Once I do the reference tracking, I'll also make it print out all the
HEAD commits it finds, which is even more interesting.
 2005-04-09 13:02:30 -07:00
Linus Torvalds
9174026cfe Add "diff-tree" program to show which files have changed between two trees. 
Very useful for creating diffs efficiently, and in general to see what has
changed in the namespace.
 2005-04-09 13:00:54 -07:00
Linus Torvalds
79517a067a Export "cache_name_compare()" helper function. 
The "diff-tree" program needs it.
 2005-04-09 12:59:11 -07:00
Linus Torvalds
83adac3c57 Make "read-tree" read the tree into the current directory cache. 
It will no longer update the actual working directory, just the
cache. To update the working directory, you need to use "checkout-cache".
 2005-04-09 12:11:25 -07:00
Linus Torvalds
197ee8c970 Make "write_cache()" and friends available as generic routines. 
This is needed for the change to make "read-tree" just read into the
cache (and then you do a "checkout-cache" to update your current dir
contents).
 2005-04-09 12:09:27 -07:00
Linus Torvalds
8d3af1d532 Fix "checkout-cache.c" mis-use of read_sha1_file() interface. 
It's supposed to test the returned file type, not think that read_sha1_file()
tests it. Confusion from "cat-file" command line usage.
 2005-04-09 11:24:41 -07:00
Linus Torvalds
f7391ce3bd Fix up "checkout-cache" a bit 
Make the warnings have newlines, and don't stop "checkout-cache -a"
just because a file already exists.
 2005-04-09 09:59:44 -07:00
Linus Torvalds
33db5f4d90 Add a "checkout-cache" command which does what the name suggests. 
I'll also eventually change "read-tree" to only update the cache
information, instead of doing a checkout of the tree. Much nicer.
 2005-04-09 09:53:05 -07:00
Linus Torvalds
734aab758c Make the cache stat information comparator public. 
Like the cache filename finder, it's a generically useful function,
rather than something specific to the current "show-diff" thing.
 2005-04-09 09:48:20 -07:00
Linus Torvalds
eb38c22f53 Make "cache_name_pos()" available to others. 
It finds the cache entry position for a given name, and is
generally useful. Sure, everybody can just scan the active
cache array, but since it's sorted, you actually want to
search it with a binary search, so let's not duplicate that
logic all over the place.
 2005-04-09 09:26:55 -07:00
Linus Torvalds
59c1e24980 Fix missing return values and some error tests for empty index files 
Patches from Dave Jones and Ingo Molnar, but since I don't have any
infrastructure in place to use the old patch applicator scripts I
am trying to build up, I ended up fixing the thing by hand instead.

Credit where credit is due, though. Nice to see that people are
taking a look at the project even in this early stage.
 2005-04-09 00:25:22 -07:00
Linus Torvalds
1ea34e365b Make fsck-cache start parsing the object types, and checking their 
internal format.

This doesn't yet check the reachability information, but we're getting
there.. Slowly.
 2005-04-08 17:11:14 -07:00
Linus Torvalds
9426167765 Add "-lz" to link line to get in zlib. 
Not all Linux distributions seem to need it (notably not YDL on ppc64), but
enough ones obviously do.
 2005-04-08 15:31:19 -07:00
Linus Torvalds
7660a188df Add new fsck-cache to Makefile. 
This is what happens when there are no nice tools to tell you to do things
properly.
 2005-04-08 15:04:51 -07:00
Linus Torvalds
20222118ae Add first cut at "fsck-cache" that validates the SHA1 object store. 
It doesn't complain about mine. But it also doesn't yet check for
inter-object reachability etc.
 2005-04-08 15:02:42 -07:00
Linus Torvalds
2ade934026 Add "check_sha1_signature()" helper function 
And fix up header declarations.
 2005-04-08 15:01:15 -07:00
Linus Torvalds
24778e335a Factor out "read_sha1_file" into mapping/inflating/unmapping. 
This allows us to also actually check the sha1 hash using these
routines. Needed for the "fsck" thing.
 2005-04-08 14:42:29 -07:00
Linus Torvalds
19b2860cba Use "-Wall -O2" for the compiler to get more warnings. 
And fix up the warnings that it pointed out. Let's keep the tree
clean from early on.

Not that the code is very beautiful anyway ;)
 2005-04-08 09:59:28 -07:00
Linus Torvalds
bf0c6e839c Make "cat-file" output the file contents to stdout. 
New syntax: "cat-file -t <sha1>" shows the tag, while "cat-file <tag> <sha1>"
outputs the file contents after checking that the supplied tag matches.
 2005-04-08 09:16:38 -07:00
Linus Torvalds
e497ea2a9b Make read-tree actually unpack the whole tree. 
I needed this to make a "sparse" archive conversion from my old
BitKeeper tree data. The scripts to do the conversion are just
incredibly ugly, but they seem to validate the notion that you
can actually use this silly 'git' thing to save your history in.
 2005-04-07 21:03:28 -07:00
Linus Torvalds
8bc9a0c769 Add copyright notices. 
The tool interface sucks (especially "committing" information, which is just
me doing everything by hand from the command line), but I think this is in
theory actually a viable way of describing the world. So copyright it.
 2005-04-07 15:16:10 -07:00
Linus Torvalds
e83c516331 Initial revision of "git", the information manager from hell 2005-04-07 15:13:13 -07:00