Merge branch 'maint'

* maint:
  base85: Make the code more obvious instead of explaining the non-obvious
  base85: encode_85() does not use the decode table
  base85 debug code: Fix length byte calculation
  Documentation: tiny git config manual tweaks
  Documentation: git gc packs refs by default now
  checkout -m: do not try to fall back to --merge from an unborn branch
This commit is contained in:
Junio C Hamano 2010-01-10 00:52:04 -08:00
commit 83b10ca25f
3 changed files with 21 additions and 26 deletions

View File

@ -537,7 +537,7 @@ apply.whitespace::
as the '--whitespace' option. See linkgit:git-apply[1].
branch.autosetupmerge::
Tells 'git-branch' and 'git-checkout' to setup new branches
Tells 'git-branch' and 'git-checkout' to set up new branches
so that linkgit:git-pull[1] will appropriately merge from the
starting point branch. Note that even if this option is not set,
this behavior can be chosen per-branch using the `--track`
@ -725,7 +725,7 @@ diff.autorefreshindex::
contents in the work tree match the contents in the
index. This option defaults to true. Note that this
affects only 'git-diff' Porcelain, and not lower level
'diff' commands, such as 'git-diff-files'.
'diff' commands such as 'git-diff-files'.
diff.external::
If this config variable is set, diff generation is not
@ -841,8 +841,8 @@ format.pretty::
format.thread::
The default threading style for 'git-format-patch'. Can be
either a boolean value, `shallow` or `deep`. `shallow`
threading makes every mail a reply to the head of the series,
a boolean value, or `shallow` or `deep`. `shallow` threading
makes every mail a reply to the head of the series,
where the head is chosen from the cover letter, the
`\--in-reply-to`, and the first patch mail, in this order.
`deep` threading makes every mail a reply to the previous one.
@ -875,15 +875,12 @@ gc.autopacklimit::
default value is 50. Setting this to 0 disables it.
gc.packrefs::
'git-gc' does not run `git pack-refs` in a bare repository by
default so that older dumb-transport clients can still fetch
from the repository. Setting this to `true` lets 'git-gc'
to run `git pack-refs`. Setting this to `false` tells
'git-gc' never to run `git pack-refs`. The default setting is
`notbare`. Enable it only when you know you do not have to
support such clients. The default setting will change to `true`
at some stage, and setting this to `false` will continue to
prevent `git pack-refs` from being run from 'git-gc'.
Running `git pack-refs` in a repository renders it
unclonable by Git versions prior to 1.5.1.2 over dumb
transports such as HTTP. This variable determines whether
'git gc' runs `git pack-refs`. This can be set to "nobare"
to enable it within all non-bare repos or it can be set to a
boolean value. The default is `true`.
gc.pruneexpire::
When 'git-gc' is run, it will call 'prune --expire 2.weeks.ago'.

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@ -57,14 +57,8 @@ int decode_85(char *dst, const char *buffer, int len)
de = de85[ch];
if (--de < 0)
return error("invalid base85 alphabet %c", ch);
/*
* Detect overflow. The largest
* 5-letter possible is "|NsC0" to
* encode 0xffffffff, and "|NsC" gives
* 0x03030303 at this point (i.e.
* 0xffffffff = 0x03030303 * 85).
*/
if (0x03030303 < acc ||
/* Detect overflow. */
if (0xffffffff / 85 < acc ||
0xffffffff - de < (acc *= 85))
return error("invalid base85 sequence %.5s", buffer-5);
acc += de;
@ -84,8 +78,6 @@ int decode_85(char *dst, const char *buffer, int len)
void encode_85(char *buf, const unsigned char *data, int bytes)
{
prep_base85();
say("encode 85");
while (bytes) {
unsigned acc = 0;
@ -118,7 +110,7 @@ int main(int ac, char **av)
int len = strlen(av[2]);
encode_85(buf, av[2], len);
if (len <= 26) len = len + 'A' - 1;
else len = len + 'a' - 26 + 1;
else len = len + 'a' - 26 - 1;
printf("encoded: %c%s\n", len, buf);
return 0;
}

View File

@ -397,7 +397,7 @@ static int merge_working_tree(struct checkout_opts *opts,
topts.initial_checkout = is_cache_unborn();
topts.update = 1;
topts.merge = 1;
topts.gently = opts->merge;
topts.gently = opts->merge && old->commit;
topts.verbose_update = !opts->quiet;
topts.fn = twoway_merge;
topts.dir = xcalloc(1, sizeof(*topts.dir));
@ -422,7 +422,13 @@ static int merge_working_tree(struct checkout_opts *opts,
struct merge_options o;
if (!opts->merge)
return 1;
parse_commit(old->commit);
/*
* Without old->commit, the below is the same as
* the two-tree unpack we already tried and failed.
*/
if (!old->commit)
return 1;
/* Do more real merge */