As the documentation says, this is primarily for debugging, and
in the longer term we should rename it to test-show-index or something.
In the meantime, just avoid xmalloc (which slurps in the rest of git), and
separating out the trivial hex functions into "hex.o".
This results in
[torvalds@nehalem git]$ size git-show-index
text data bss dec hex filename
222818 2276 112688 337782 52776 git-show-index (before)
5696 624 1264 7584 1da0 git-show-index (after)
which is a whole lot better.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Exal Sibeaz pointed out that some git files are way too big, and that
add_files_to_cache() brings in all the diff machinery to any git binary
that needs the basic git SHA1 object operations from read-cache.c. Which
is pretty much all of them.
It's doubly silly, since add_files_to_cache() is only used by builtin
programs (add, checkout and commit), so it's fairly easily fixed by just
moving the thing to builtin-add.c, and avoiding the dependency entirely.
I initially argued to Exal that it would probably be best to try to depend
on smart compilers and linkers, but after spending some time trying to
make -ffunction-sections work and giving up, I think Exal was right, and
the fix is to just do some trivial cleanups like this.
This trivial cleanup results in pretty stunning file size differences.
The diff machinery really is mostly used by just the builtin programs, and
you have things like these trivial before-and-after numbers:
-rwxr-xr-x 1 torvalds torvalds 1727420 2010-01-21 10:53 git-hash-object
-rwxrwxr-x 1 torvalds torvalds 940265 2010-01-21 11:16 git-hash-object
Now, I'm not saying that 940kB is good either, but that's mostly all the
debug information - you can see the real code with 'size':
text data bss dec hex filename
418675 3920 127408 550003 86473 git-hash-object (before)
230650 2288 111728 344666 5425a git-hash-object (after)
ie we have a nice 24% size reduction from this trivial cleanup.
It's not just that one file either. I get:
[torvalds@nehalem git]$ du -s /home/torvalds/libexec/git-core
45640 /home/torvalds/libexec/git-core (before)
33508 /home/torvalds/libexec/git-core (after)
so we're talking 12MB of diskspace here.
(Of course, stripping all the binaries brings the 33MB down to 9MB, so the
whole debug information thing is still the bulk of it all, but that's a
separate issue entirely)
Now, I'm sure there are other things we should do, and changing our
compiler flags from -O2 to -Os would bring the text size down by an
additional almost 20%, but this thing Exal pointed out seems to be some
good low-hanging fruit.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
It forgot to apply the prefix to the paths given on the command line.
[jc: added test]
Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
* jc/conflict-marker-size:
rerere: honor conflict-marker-size attribute
rerere: prepare for customizable conflict marker length
conflict-marker-size: new attribute
rerere: use ll_merge() instead of using xdl_merge()
merge-tree: use ll_merge() not xdl_merge()
xdl_merge(): allow passing down marker_size in xmparam_t
xdl_merge(): introduce xmparam_t for merge specific parameters
git_attr(): fix function signature
Conflicts:
builtin-merge-file.c
ll-merge.c
xdiff/xdiff.h
xdiff/xmerge.c
* ap/merge-backend-opts:
Document that merge strategies can now take their own options
Extend merge-subtree tests to test -Xsubtree=dir.
Make "subtree" part more orthogonal to the rest of merge-recursive.
pull: Fix parsing of -X<option>
Teach git-pull to pass -X<option> to git-merge
git merge -X<option>
git-merge-file --ours, --theirs
Conflicts:
git-compat-util.h
* remotes/trast-doc/for-next:
Documentation: spell 'git cmd' without dash throughout
Documentation: format full commands in typewriter font
Documentation: warn prominently against merging with dirty trees
Documentation/git-merge: reword references to "remote" and "pull"
Conflicts:
Documentation/config.txt
Documentation/git-config.txt
Documentation/git-merge.txt
* 'jh/notes' (early part):
Add more testcases to test fast-import of notes
Rename t9301 to t9350, to make room for more fast-import tests
fast-import: Proper notes tree manipulation
* jc/cache-unmerge:
rerere forget path: forget recorded resolution
rerere: refactor rerere logic to make it independent from I/O
rerere: remove silly 1024-byte line limit
resolve-undo: teach "update-index --unresolve" to use resolve-undo info
resolve-undo: "checkout -m path" uses resolve-undo information
resolve-undo: allow plumbing to clear the information
resolve-undo: basic tests
resolve-undo: record resolved conflicts in a new index extension section
builtin-merge.c: use standard active_cache macros
Conflicts:
builtin-ls-files.c
builtin-merge.c
builtin-rerere.c
* js/exec-error-report:
Improve error message when a transport helper was not found
start_command: detect execvp failures early
run-command: move wait_or_whine earlier
start_command: report child process setup errors to the parent's stderr
Conflicts:
Makefile
* jc/ls-files-ignored-pathspec:
ls-files: fix overeager pathspec optimization
read_directory(): further split treat_path()
read_directory_recursive(): refactor handling of a single path into a separate function
t3001: test ls-files -o ignored/dir
* jc/grep-lookahead:
grep --no-index: allow use of "git grep" outside a git repository
grep: prepare to run outside of a work tree
grep: rip out pessimization to use fixmatch()
grep: rip out support for external grep
grep: optimize built-in grep by skipping lines that do not hit
Conflicts:
builtin-grep.c
t/t7002-grep.sh
* da/difftool:
difftool: Update copyright notices to list each year separately
difftool: Use eval to expand '--extcmd' expressions
difftool: Add '-x' and as an alias for '--extcmd'
t7800-difftool.sh: Simplify the --extcmd test
git-diff.txt: Link to git-difftool
difftool: Allow specifying unconfigured commands with --extcmd
difftool--helper: Remove use of the GIT_MERGE_TOOL variable
difftool--helper: Update copyright and remove distracting comments
git-difftool: Add '--gui' for selecting a GUI tool
t7800-difftool: Set a bogus tool for use by tests
* mh/rebase-fixup:
rebase -i: Retain user-edited commit messages after squash/fixup conflicts
t3404: Set up more of the test repo in the "setup" step
rebase -i: For fixup commands without squashes, do not start editor
rebase -i: Change function make_squash_message into update_squash_message
rebase -i: Extract function do_with_author
rebase -i: Handle the author script all in one place in do_next
rebase -i: Extract a function "commit_message"
rebase -i: Simplify commit counting for generated commit messages
rebase -i: Improve consistency of commit count in generated commit messages
t3404: Test the commit count in commit messages generated by "rebase -i"
rebase -i: Introduce a constant AMEND
rebase -i: Introduce a constant AUTHOR_SCRIPT
rebase -i: Document how temporary files are used
rebase -i: Use symbolic constant $MSG consistently
rebase -i: Use "test -n" instead of "test ! -z"
rebase -i: Inline expression
rebase -i: Remove dead code
rebase -i: Make the condition for an "if" more transparent
* 'mh/rebase-fixup' (early part):
rebase-i: Ignore comments and blank lines in peek_next_command
lib-rebase: Allow comments and blank lines to be added to the rebase script
lib-rebase: Provide clearer debugging info about what the editor did
Add a command "fixup" to rebase --interactive
t3404: Use test_commit to set up test repository
* jk/warn-author-committer-after-commit:
user_ident_sufficiently_given(): refactor the logic to be usable from elsewhere
commit.c::print_summary: do not release the format string too early
commit: allow suppression of implicit identity advice
commit: show interesting ident information in summary
strbuf: add strbuf_addbuf_percentquote
strbuf_expand: convert "%%" to "%"
Conflicts:
builtin-commit.c
ident.c
* jc/ident:
ident.c: replace fprintf with fputs to suppress compiler warning
user_ident_sufficiently_given(): refactor the logic to be usable from elsewhere
ident.c: treat $EMAIL as giving user.email identity explicitly
ident.c: check explicit identity for name and email separately
ident.c: remove unused variables
* tr/http-push-ref-status:
transport-helper.c::push_refs(): emit "no refs" error message
transport-helper.c::push_refs(): ignore helper-reported status if ref is not to be pushed
transport.c::transport_push(): make ref status affect return value
refactor ref status logic for pushing
t5541-http-push.sh: add test for unmatched, non-fast-forwarded refs
t5541-http-push.sh: add tests for non-fast-forward pushes
Conflicts:
transport-helper.c
* jc/symbol-static:
date.c: mark file-local function static
Replace parse_blob() with an explanatory comment
symlinks.c: remove unused functions
object.c: remove unused functions
strbuf.c: remove unused function
sha1_file.c: remove unused function
mailmap.c: remove unused function
utf8.c: mark file-local function static
submodule.c: mark file-local function static
quote.c: mark file-local function static
remote-curl.c: mark file-local function static
read-cache.c: mark file-local functions static
parse-options.c: mark file-local function static
entry.c: mark file-local function static
http.c: mark file-local functions static
pretty.c: mark file-local function static
builtin-rev-list.c: mark file-local function static
bisect.c: mark file-local function static
* sb/maint-octopus:
octopus: remove dead code
octopus: reenable fast-forward merges
octopus: make merge process simpler to follow
Conflicts:
git-merge-octopus.sh
* bg/maint-add-all-doc:
git-rm doc: Describe how to sync index & work tree
git-add/rm doc: Consistently back-quote
Documentation: 'git add -A' can remove files
* maint-1.6.5:
Git 1.6.5.8
Fix mis-backport of t7002
bash completion: factor submodules into dirty state
reset: unbreak hard resets with GIT_WORK_TREE
Conflicts:
Documentation/git.txt
GIT-VERSION-GEN
RelNotes
