git-commit-vandalism/builtin
Jeff King 597f9134de alternates: use a separate scratch space
The alternate_object_database struct uses a single buffer
both for storing the path to the alternate, and as a scratch
buffer for forming object names. This is efficient (since
otherwise we'd end up storing the path twice), but it makes
life hard for callers who just want to know the path to the
alternate. They have to remember to stop reading after
"alt->name - alt->base" bytes, and to subtract one for the
trailing '/'.

It would be much simpler if they could simply access a
NUL-terminated path string. We could encapsulate this in a
function which puts a NUL in the scratch buffer and returns
the string, but that opens up questions about the lifetime
of the result. The first time another caller uses the
alternate, the scratch buffer may get other data tacked onto
it.

Let's instead just store the root path separately from the
scratch buffer. There aren't enough alternates being stored
for the duplicated data to matter for performance, and this
keeps things simple and safe for the callers.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-10-10 13:52:36 -07:00
..
add.c add: modify already added files when --chmod is given 2016-09-15 12:13:54 -07:00
am.c Merge branch 'bc/object-id' 2016-09-19 13:47:19 -07:00
annotate.c
apply.c Convert read_mmblob to take struct object_id. 2016-09-07 12:59:42 -07:00
archive.c
bisect--helper.c
blame.c Merge branch 'mh/diff-indent-heuristic' 2016-09-26 16:09:16 -07:00
branch.c i18n: branch: mark option description for translation 2016-09-15 13:17:32 -07:00
bundle.c
cat-file.c Merge branch 'js/cat-file-filters' 2016-09-21 15:15:19 -07:00
check-attr.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-ignore.c give "nbuf" strbuf a more meaningful name 2016-02-01 13:43:02 -08:00
check-mailmap.c strbuf: introduce strbuf_getline_{lf,nul}() 2016-01-15 10:12:51 -08:00
check-ref-format.c use xmallocz to avoid size arithmetic 2016-02-22 14:51:09 -08:00
checkout-index.c introduce CHECKOUT_INIT 2016-09-22 13:42:18 -07:00
checkout.c Merge branch 'rs/checkout-init-macro' 2016-09-26 16:09:21 -07:00
clean.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
clone.c Merge branch 'nd/init-core-worktree-in-multi-worktree-world' 2016-10-03 13:30:35 -07:00
column.c column: read lines with strbuf_getline() 2016-01-15 10:35:07 -08:00
commit-tree.c builtin/commit-tree: convert to struct object_id 2016-09-07 12:59:43 -07:00
commit.c Merge branch 'tg/add-chmod+x-fix' 2016-09-26 16:09:20 -07:00
config.c i18n: config: mark error message for translation 2016-09-15 13:17:32 -07:00
count-objects.c
credential.c
describe.c Remove get_object_hash. 2015-11-20 08:02:05 -05:00
diff-files.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-index.c diff: run arguments through precompose_argv 2016-05-13 14:35:49 -07:00
diff-tree.c Merge branch 'ar/diff-args-osx-precompose' into maint 2016-06-06 14:27:35 -07:00
diff.c Merge branch 'jk/setup-sequence-update' 2016-09-21 15:15:24 -07:00
fast-export.c diff: convert struct diff_filespec to struct object_id 2016-06-28 11:39:02 -07:00
fetch-pack.c fetch-pack: fix object_id of exact sha1 2016-03-01 11:19:19 -08:00
fetch.c Merge branch 'jk/push-progress' 2016-08-03 15:10:28 -07:00
fmt-merge-msg.c use strbuf_addstr() for adding constant strings to a strbuf, part 2 2016-09-15 12:23:38 -07:00
for-each-ref.c
fsck.c alternates: use a separate scratch space 2016-10-10 13:52:36 -07:00
gc.c Merge branch 'jk/reduce-gc-aggressive-depth' 2016-09-21 15:15:30 -07:00
get-tar-commit-id.c
grep.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
hash-object.c hash-object: always try to set up the git repository 2016-09-13 15:45:45 -07:00
help.c help: introduce option --exclude-guides 2016-08-30 16:09:41 -07:00
index-pack.c index-pack: add --max-input-size=<size> option 2016-08-24 12:31:05 -07:00
init-db.c Merge branch 'nd/init-core-worktree-in-multi-worktree-world' 2016-10-03 13:30:35 -07:00
interpret-trailers.c Merge branch 'jk/parseopt-string-list' into jk/string-list-static-init 2016-06-13 10:37:48 -07:00
log.c Merge branch 'jt/format-patch-rfc' 2016-09-26 16:09:17 -07:00
ls-files.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
ls-remote.c ls-remote: add support for showing symrefs 2016-01-19 10:07:56 -08:00
ls-tree.c
mailinfo.c
mailsplit.c mailsplit: support unescaping mboxrd messages 2016-06-06 11:14:43 -07:00
merge-base.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
merge-file.c builtin/merge-file.c: use error_errno() 2016-05-09 12:29:08 -07:00
merge-index.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
merge-ours.c
merge-recursive.c i18n: merge-recursive: mark verbose message for translation 2016-09-15 13:17:32 -07:00
merge-tree.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
merge.c use strbuf_addstr() for adding constant strings to a strbuf, part 2 2016-09-15 12:23:38 -07:00
mktag.c
mktree.c Merge branch 'jk/tighten-alloc' 2016-02-26 13:37:16 -08:00
mv.c Merge branch 'rs/copy-array' 2016-10-03 13:30:33 -07:00
name-rev.c Merge branch 'js/name-rev-use-oldest-ref' into maint 2016-05-31 14:08:26 -07:00
notes.c notes: spell first word of error messages in lowercase 2016-09-15 13:17:32 -07:00
pack-objects.c Merge branch 'ks/pack-objects-bitmap' 2016-09-21 15:15:21 -07:00
pack-redundant.c convert trivial cases to ALLOC_ARRAY 2016-02-22 14:51:09 -08:00
pack-refs.c
patch-id.c Merge branch 'rs/patch-id-use-skip-prefix' 2016-06-03 14:38:03 -07:00
prune-packed.c
prune.c Merge branch 'jk/repository-extension' into maint 2015-11-03 15:32:25 -08:00
pull.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
push.c push: accept push options 2016-07-14 15:50:41 -07:00
read-tree.c cache: convert struct cache_entry to use struct object_id 2016-09-07 12:59:42 -07:00
receive-pack.c Merge branch 'va/i18n' 2016-09-21 15:15:28 -07:00
reflog.c struct name_entry: use struct object_id instead of unsigned char sha1[20] 2016-04-25 14:23:42 -07:00
remote-ext.c typofix: assorted typofixes in comments, documentation and messages 2016-05-06 13:16:37 -07:00
remote-fd.c
remote.c Merge branch 'mh/ref-iterators' 2016-07-25 14:13:33 -07:00
repack.c Merge branch 'va/i18n-even-more' 2016-07-13 11:24:10 -07:00
replace.c Merge branch 'js/replace-edit-use-editor-configuration' into maint 2016-05-06 14:53:24 -07:00
rerere.c
reset.c builtin/reset: convert to use struct object_id 2016-09-07 12:59:43 -07:00
rev-list.c graph: add support for --line-prefix on all graph-aware output 2016-08-31 18:07:09 -07:00
rev-parse.c use strbuf_addstr() for adding constant strings to a strbuf 2016-08-01 13:42:10 -07:00
revert.c parse_options: allocate a new array when concatenating 2016-07-06 10:11:08 -07:00
rm.c builtin/rm: convert to use struct object_id 2016-09-07 12:59:42 -07:00
send-pack.c Merge branch 'sk/send-pack-all-fix' into maint 2016-04-29 14:15:57 -07:00
shortlog.c Merge branch 'js/log-to-diffopt-file' 2016-07-19 13:22:15 -07:00
show-branch.c i18n: show-branch: mark plural strings for translation 2016-09-15 13:17:32 -07:00
show-ref.c show-ref: stop using PARSE_OPT_NO_INTERNAL_HELP 2015-11-20 08:02:07 -05:00
stripspace.c stripspace: call U+0020 a "space" instead of a "blank" 2016-01-29 16:02:34 -08:00
submodule--helper.c alternates: use a separate scratch space 2016-10-10 13:52:36 -07:00
symbolic-ref.c symbolic-ref -d: do not allow removal of HEAD 2016-09-02 09:01:38 -07:00
tag.c Merge branch 'st/verify-tag' 2016-04-29 12:59:09 -07:00
unpack-file.c
unpack-objects.c unpack-objects: add --max-input-size=<size> option 2016-08-24 12:31:05 -07:00
update-index.c Merge branch 'tg/add-chmod+x-fix' 2016-09-26 16:09:20 -07:00
update-ref.c
update-server-info.c
upload-archive.c builtin/upload-archive.c: use error_errno() 2016-05-09 12:29:08 -07:00
var.c
verify-commit.c
verify-pack.c
verify-tag.c verify-tag: move tag verification code to tag.c 2016-04-22 14:06:46 -07:00
worktree.c worktree: honor configuration variables 2016-09-27 10:51:33 -07:00
write-tree.c