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sparse-checkout: escape all glob characters on write 

The sparse-checkout patterns allow special globs according to
fnmatch(3). When writing cone-mode patterns for paths containing
these characters, they must be escaped.

Use is_glob_special() to check which characters must be escaped
this way, and add a path to the tests that contains all glob
characters at once. Note that ']' is not special, since the
initial bracket '[' is escaped.

Reported-by: Jeff King <peff@peff.net>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2020-01-31 20:16:13 +00:00 committed by Junio C Hamano
parent e55682ea26
commit e53ffe2704
2 changed files with 9 additions and 6 deletions
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2
builtin/sparse-checkout.c
View File

@ -149,7 +149,7 @@ static char *escaped_pattern(char *pattern)
struct strbuf final = STRBUF_INIT;
while (*p) {
if (*p == '*' || *p == '\\')
if (is_glob_special(*p))
strbuf_addch(&final, '\\');
strbuf_addch(&final, *p);

13
t/t1091-sparse-checkout-builtin.sh
View File

@ -381,20 +381,21 @@ test_expect_success 'pattern-checks: contained glob characters' '
done
'
test_expect_success BSLASHPSPEC 'pattern-checks: escaped "*"' '
test_expect_success BSLASHPSPEC 'pattern-checks: escaped characters' '
git clone repo escaped &&
TREEOID=$(git -C escaped rev-parse HEAD:folder1) &&
NEWTREE=$(git -C escaped mktree <<-EOF
$(git -C escaped ls-tree HEAD)
040000 tree $TREEOID zbad\\dir
040000 tree $TREEOID zdoes*exist
040000 tree $TREEOID zglob[!a]?
EOF
) &&
COMMIT=$(git -C escaped commit-tree $NEWTREE -p HEAD) &&
git -C escaped reset --hard $COMMIT &&
check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" &&
check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" zglob[!a]? &&
git -C escaped sparse-checkout init --cone &&
git -C escaped sparse-checkout set zbad\\dir/bogus "zdoes*not*exist" "zdoes*exist" &&
git -C escaped sparse-checkout set zbad\\dir/bogus "zdoes*not*exist" "zdoes*exist" "zglob[!a]?" &&
cat >expect <<-\EOF &&
/*
!/*/
@ -403,9 +404,10 @@ test_expect_success BSLASHPSPEC 'pattern-checks: escaped "*"' '
/zbad\\dir/bogus/
/zdoes\*exist/
/zdoes\*not\*exist/
/zglob\[!a]\?/
EOF
test_cmp expect escaped/.git/info/sparse-checkout &&
check_read_tree_errors escaped "a zbad\\dir zdoes*exist" &&
check_read_tree_errors escaped "a zbad\\dir zdoes*exist zglob[!a]?" &&
git -C escaped ls-tree -d --name-only HEAD >list-expect &&
git -C escaped sparse-checkout set --stdin <list-expect &&
cat >expect <<-\EOF &&
@ -416,9 +418,10 @@ test_expect_success BSLASHPSPEC 'pattern-checks: escaped "*"' '
/folder2/
/zbad\\dir/
/zdoes\*exist/
/zglob\[!a]\?/
EOF
test_cmp expect escaped/.git/info/sparse-checkout &&
check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" &&
check_files escaped "a deep folder1 folder2 zbad\\dir zdoes*exist" zglob[!a]? &&
git -C escaped sparse-checkout list >list-actual &&
test_cmp list-expect list-actual
'