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Merge branch 'nd/cache-tree-ita'

Browse source 
"git add -N dir/file && git write-tree" produced an incorrect tree
when there are other paths in the same directory that sorts after
"file".

* nd/cache-tree-ita:
  cache-tree: do not generate empty trees as a result of all i-t-a subentries
  cache-tree.c: fix i-t-a entry skipping directory updates sometimes
  test-lib.sh: introduce and use $EMPTY_BLOB
  test-lib.sh: introduce and use $EMPTY_TREE
This commit is contained in:
Junio C Hamano 2016-07-25 14:13:44 -07:00
parent 0d54ad9cd4 6d6a782fbf
commit 3cc75c10d7
15 changed files with 87 additions and 53 deletions
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14
cache-tree.c
View file

@ -319,12 +319,13 @@ static int update_one(struct cache_tree *it,
i = 0;
while (i < entries) {
const struct cache_entry *ce = cache[i];
struct cache_tree_sub *sub;
struct cache_tree_sub *sub = NULL;
const char *path, *slash;
int pathlen, entlen;
const unsigned char *sha1;
unsigned mode;
int expected_missing = 0;
int contains_ita = 0;
path = ce->name;
pathlen = ce_namelen(ce);
@ -341,7 +342,8 @@ static int update_one(struct cache_tree *it,
i += sub->count;
sha1 = sub->cache_tree->sha1;
mode = S_IFDIR;
if (sub->cache_tree->entry_count < 0) {
contains_ita = sub->cache_tree->entry_count < 0;
if (contains_ita) {
to_invalidate = 1;
expected_missing = 1;
}
@ -375,11 +377,17 @@ static int update_one(struct cache_tree *it,
* they are not part of generated trees. Invalidate up
* to root to force cache-tree users to read elsewhere.
*/
if (ce_intent_to_add(ce)) {
if (!sub && ce_intent_to_add(ce)) {
to_invalidate = 1;
continue;
}
/*
* "sub" can be an empty tree if all subentries are i-t-a.
*/
if (contains_ita && !hashcmp(sha1, EMPTY_TREE_SHA1_BIN))
continue;
strbuf_grow(&buffer, entlen + 100);
strbuf_addf(&buffer, "%o %.*s%c", mode, entlen, path + baselen, '\0');
strbuf_add(&buffer, sha1, 20);

2
t/t0000-basic.sh
View file

@ -834,7 +834,7 @@ test_expect_success 'git write-tree should be able to write an empty tree' '
'
test_expect_success 'validate object ID of a known tree' '
test "$tree" = 4b825dc642cb6eb9a060e54bf8d69288fbee4904
test "$tree" = $EMPTY_TREE
'
# Various types of objects

8
t/t1011-read-tree-sparse-checkout.sh
View file

@ -15,11 +15,11 @@ test_description='sparse checkout tests
. "$TEST_DIRECTORY"/lib-read-tree.sh
test_expect_success 'setup' '
cat >expected <<-\EOF &&
cat >expected <<-EOF &&
100644 77f0ba1734ed79d12881f81b36ee134de6a3327b 0 init.t
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 sub/added
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 sub/addedtoo
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 subsub/added
100644 $EMPTY_BLOB 0 sub/added
100644 $EMPTY_BLOB 0 sub/addedtoo
100644 $EMPTY_BLOB 0 subsub/added
EOF
cat >expected.swt <<-\EOF &&
H init.t

2
t/t1100-commit-tree-options.sh
View file

@ -15,7 +15,7 @@ Also make sure that command line parser understands the normal
. ./test-lib.sh
cat >expected <<EOF
tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904
tree $EMPTY_TREE
author Author Name <author@email> 1117148400 +0000
committer Committer Name <committer@email> 1117150200 +0000

24
t/t1700-split-index.sh
View file

@ -33,14 +33,14 @@ test_expect_success 'add one file' '
git update-index --add one &&
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
cat >expect <<EOF &&
base $base
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
replacements:
deletions:
EOF
@ -51,7 +51,7 @@ test_expect_success 'disable split index' '
git update-index --no-split-index &&
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
EOF
test_cmp ls-files.expect ls-files.actual &&
@ -67,7 +67,7 @@ test_expect_success 'enable split index again, "one" now belongs to base index"'
git update-index --split-index &&
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
EOF
test_cmp ls-files.expect ls-files.actual &&
@ -105,7 +105,7 @@ test_expect_success 'add another file, which stays index' '
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0 one
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
100644 $EMPTY_BLOB 0 two
EOF
test_cmp ls-files.expect ls-files.actual &&
@ -113,7 +113,7 @@ EOF
q_to_tab >expect <<EOF &&
$BASE
100644 2e0996000b7e9019eabcad29391bf0f5c7702f0b 0Q
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
100644 $EMPTY_BLOB 0 two
replacements: 0
deletions:
EOF
@ -159,14 +159,14 @@ test_expect_success 'add original file back' '
git update-index --add one &&
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
EOF
test_cmp ls-files.expect ls-files.actual &&
test-dump-split-index .git/index | sed "/^own/d" >actual &&
cat >expect <<EOF &&
$BASE
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 $EMPTY_BLOB 0 one
replacements:
deletions: 0
EOF
@ -178,8 +178,8 @@ test_expect_success 'add new file' '
git update-index --add two &&
git ls-files --stage >actual &&
cat >expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
100644 $EMPTY_BLOB 0 one
100644 $EMPTY_BLOB 0 two
EOF
test_cmp expect actual
'
@ -188,8 +188,8 @@ test_expect_success 'unify index, two files remain' '
git update-index --no-split-index &&
git ls-files --stage >ls-files.actual &&
cat >ls-files.expect <<EOF &&
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 one
100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0 two
100644 $EMPTY_BLOB 0 one
100644 $EMPTY_BLOB 0 two
EOF
test_cmp ls-files.expect ls-files.actual &&

31
t/t2203-add-intent.sh
View file

@ -82,5 +82,36 @@ test_expect_success 'cache-tree invalidates i-t-a paths' '
test_cmp expect actual
'
test_expect_success 'cache-tree does not ignore dir that has i-t-a entries' '
git init ita-in-dir &&
(
cd ita-in-dir &&
mkdir 2 &&
for f in 1 2/1 2/2 3
do
echo "$f" >"$f"
done &&
git add 1 2/2 3 &&
git add -N 2/1 &&
git commit -m committed &&
git ls-tree -r HEAD >actual &&
grep 2/2 actual
)
'
test_expect_success 'cache-tree does skip dir that becomes empty' '
rm -fr ita-in-dir &&
git init ita-in-dir &&
(
cd ita-in-dir &&
mkdir -p 1/2/3 &&
echo 4 >1/2/3/4 &&
git add -N 1/2/3/4 &&
git write-tree >actual &&
echo $EMPTY_TREE >expected &&
test_cmp expected actual
)
'
test_done

8
t/t3102-ls-tree-wildcards.sh
View file

@ -12,16 +12,16 @@ test_expect_success 'setup' '
'
test_expect_success 'ls-tree a[a] matches literally' '
cat >expect <<-\EOF &&
100644 blob e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 a[a]/three
cat >expect <<-EOF &&
100644 blob $EMPTY_BLOB a[a]/three
EOF
git ls-tree -r HEAD "a[a]" >actual &&
test_cmp expect actual
'
test_expect_success 'ls-tree outside prefix' '
cat >expect <<-\EOF &&
100644 blob e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 ../a[a]/three
cat >expect <<-EOF &&
100644 blob $EMPTY_BLOB ../a[a]/three
EOF
( cd aa && git ls-tree -r HEAD "../a[a]"; ) >actual &&
test_cmp expect actual

2
t/t4010-diff-pathspec.sh
View file

@ -78,8 +78,6 @@ test_expect_success 'diff-tree pathspec' '
test_cmp expected current
'
EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
test_expect_success 'diff-tree with wildcard shows dir also matches' '
git diff-tree --name-only $EMPTY_TREE $tree -- "f*" >result &&
echo file0 >expected &&

10
t/t4054-diff-bogus-tree.sh
View file

@ -3,8 +3,6 @@
test_description='test diff with a bogus tree containing the null sha1'
. ./test-lib.sh
empty_tree=4b825dc642cb6eb9a060e54bf8d69288fbee4904
test_expect_success 'create bogus tree' '
bogus_tree=$(
printf "100644 fooQQQQQQQQQQQQQQQQQQQQQ" |
@ -22,13 +20,13 @@ test_expect_success 'create tree with matching file' '
test_expect_success 'raw diff shows null sha1 (addition)' '
echo ":000000 100644 $_z40 $_z40 A foo" >expect &&
git diff-tree $empty_tree $bogus_tree >actual &&
git diff-tree $EMPTY_TREE $bogus_tree >actual &&
test_cmp expect actual
'
test_expect_success 'raw diff shows null sha1 (removal)' '
echo ":100644 000000 $_z40 $_z40 D foo" >expect &&
git diff-tree $bogus_tree $empty_tree >actual &&
git diff-tree $bogus_tree $EMPTY_TREE >actual &&
test_cmp expect actual
'
@ -57,11 +55,11 @@ test_expect_success 'raw diff shows null sha1 (index)' '
'
test_expect_success 'patch fails due to bogus sha1 (addition)' '
test_must_fail git diff-tree -p $empty_tree $bogus_tree
test_must_fail git diff-tree -p $EMPTY_TREE $bogus_tree
'
test_expect_success 'patch fails due to bogus sha1 (removal)' '
test_must_fail git diff-tree -p $bogus_tree $empty_tree
test_must_fail git diff-tree -p $bogus_tree $EMPTY_TREE
'
test_expect_success 'patch fails due to bogus sha1 (modification)' '

4
t/t5504-fetch-receive-strict.sh
View file

@ -115,8 +115,8 @@ test_expect_success 'push with transfer.fsckobjects' '
test_cmp exp act
'
cat >bogus-commit <<\EOF
tree 4b825dc642cb6eb9a060e54bf8d69288fbee4904
cat >bogus-commit <<EOF
tree $EMPTY_TREE
author Bugs Bunny 1234567890 +0000
committer Bugs Bunny <bugs@bun.ni> 1234567890 +0000

12
t/t7011-skip-worktree-reading.sh
View file

@ -23,17 +23,15 @@ S sub/1
H sub/2
EOF
NULL_SHA1=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
setup_absent() {
test -f 1 && rm 1
git update-index --remove 1 &&
git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
git update-index --skip-worktree 1
}
test_absent() {
echo "100644 $NULL_SHA1 0 1" > expected &&
echo "100644 $EMPTY_BLOB 0 1" > expected &&
git ls-files --stage 1 > result &&
test_cmp expected result &&
test ! -f 1
@ -42,12 +40,12 @@ test_absent() {
setup_dirty() {
git update-index --force-remove 1 &&
echo dirty > 1 &&
git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
git update-index --skip-worktree 1
}
test_dirty() {
echo "100644 $NULL_SHA1 0 1" > expected &&
echo "100644 $EMPTY_BLOB 0 1" > expected &&
git ls-files --stage 1 > result &&
test_cmp expected result &&
echo dirty > expected
@ -120,7 +118,7 @@ test_expect_success 'grep with skip-worktree file' '
test "$(git grep --no-ext-grep test)" = "1:test"
'
echo ":000000 100644 $_z40 $NULL_SHA1 A 1" > expected
echo ":000000 100644 $_z40 $EMPTY_BLOB A 1" > expected
test_expect_success 'diff-index does not examine skip-worktree absent entries' '
setup_absent &&
git diff-index HEAD -- 1 > result &&

10
t/t7012-skip-worktree-writing.sh
View file

@ -53,17 +53,15 @@ test_expect_success 'read-tree removes worktree, dirty case' '
git update-index --no-skip-worktree added
'
NULL_SHA1=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
setup_absent() {
test -f 1 && rm 1
git update-index --remove 1 &&
git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
git update-index --skip-worktree 1
}
test_absent() {
echo "100644 $NULL_SHA1 0 1" > expected &&
echo "100644 $EMPTY_BLOB 0 1" > expected &&
git ls-files --stage 1 > result &&
test_cmp expected result &&
test ! -f 1
@ -72,12 +70,12 @@ test_absent() {
setup_dirty() {
git update-index --force-remove 1 &&
echo dirty > 1 &&
git update-index --add --cacheinfo 100644 $NULL_SHA1 1 &&
git update-index --add --cacheinfo 100644 $EMPTY_BLOB 1 &&
git update-index --skip-worktree 1
}
test_dirty() {
echo "100644 $NULL_SHA1 0 1" > expected &&
echo "100644 $EMPTY_BLOB 0 1" > expected &&
git ls-files --stage 1 > result &&
test_cmp expected result &&
echo dirty > expected

6
t/t7063-status-untracked-cache.sh
View file

@ -53,7 +53,7 @@ A two
EOF
cat >../dump.expect <<EOF &&
info/exclude e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
info/exclude $EMPTY_BLOB
core.excludesfile 0000000000000000000000000000000000000000
exclude_per_dir .gitignore
flags 00000006
@ -137,7 +137,7 @@ EOF
test_expect_success 'verify untracked cache dump' '
test-dump-untracked-cache >../actual &&
cat >../expect <<EOF &&
info/exclude e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
info/exclude $EMPTY_BLOB
core.excludesfile 0000000000000000000000000000000000000000
exclude_per_dir .gitignore
flags 00000006
@ -184,7 +184,7 @@ EOF
test_expect_success 'verify untracked cache dump' '
test-dump-untracked-cache >../actual &&
cat >../expect <<EOF &&
info/exclude e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
info/exclude $EMPTY_BLOB
core.excludesfile 0000000000000000000000000000000000000000
exclude_per_dir .gitignore
flags 00000006

2
t/t7508-status.sh
View file

@ -803,7 +803,7 @@ EOF
'
cat >expect <<EOF
:100644 100644 e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 0000000000000000000000000000000000000000 M dir1/modified
:100644 100644 $EMPTY_BLOB 0000000000000000000000000000000000000000 M dir1/modified
EOF
test_expect_success 'status refreshes the index' '
touch dir2/added &&

5
t/test-lib.sh
View file

@ -162,6 +162,9 @@ _x40="$_x05$_x05$_x05$_x05$_x05$_x05$_x05$_x05"
# Zero SHA-1
_z40=0000000000000000000000000000000000000000
EMPTY_TREE=4b825dc642cb6eb9a060e54bf8d69288fbee4904
EMPTY_BLOB=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
# Line feed
LF='
'
@ -170,7 +173,7 @@ LF='
# when case-folding filenames
u200c=$(printf '\342\200\214')
export _x05 _x40 _z40 LF u200c
export _x05 _x40 _z40 LF u200c EMPTY_TREE EMPTY_BLOB
# Each test should start with something like this, after copyright notices:
#