diff options
| author |  Victoria Dye <vdye@github.com> | 2022-03-01 20:24:26 +0000 |
|---|---|---|
| committer |  Junio C Hamano <gitster@pobox.com> | 2022-03-01 12:36:00 -0800 |
| commit | cc89331ddc92cd89012eaf7937d167b3e0beaecc (patch) | |
| tree | 78663939bf347fdc04f0d2171830a4463194bb7f | |
| parent | status: fix nested sparse directory diff in sparse index (diff) | |
| download | tgif-cc89331ddc92cd89012eaf7937d167b3e0beaecc.tar.xz | |
read-tree: explicitly disallow prefixes with a leading '/'
Exit with an error if a prefix provided to `git read-tree --prefix` begins
with '/'. In most cases, prefixes like this result in an "invalid path"
error; however, the repository root would be interpreted as valid when
specified as '--prefix=/'. This is due to leniency around trailing directory
separators on prefixes (e.g., allowing both '--prefix=my-dir' and
'--prefix=my-dir/') - the '/' in the prefix is actually the *trailing*
slash, although it could be misinterpreted as a *leading* slash.
To remove the confusing repo root-as-'/' case and make it clear that
prefixes should not begin with '/', exit with an error if the first
character of the provided prefix is '/'.
Helped-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
| -rw-r--r-- | builtin/read-tree.c | 4 | ||||
| -rwxr-xr-x | t/t1003-read-tree-prefix.sh | 10 |
2 files changed, 14 insertions, 0 deletions
diff --git a/builtin/read-tree.c b/builtin/read-tree.c index 2109c4c9e5..c1a401971c 100644 --- a/builtin/read-tree.c +++ b/builtin/read-tree.c @@ -166,6 +166,10 @@ int cmd_read_tree(int argc, const char **argv, const char *cmd_prefix) if (1 < opts.merge + opts.reset + prefix_set) die("Which one? -m, --reset, or --prefix?"); + /* Prefix should not start with a directory separator */ + if (opts.prefix && opts.prefix[0] == '/') + die("Invalid prefix, prefix cannot start with '/'"); + if (opts.reset) opts.reset = UNPACK_RESET_OVERWRITE_UNTRACKED; diff --git a/t/t1003-read-tree-prefix.sh b/t/t1003-read-tree-prefix.sh index e0db2066f3..c860c08ecb 100755 --- a/t/t1003-read-tree-prefix.sh +++ b/t/t1003-read-tree-prefix.sh @@ -25,4 +25,14 @@ test_expect_success 'read-tree --prefix' ' cmp expect actual ' +test_expect_success 'read-tree --prefix with leading slash exits with error' ' + git rm -rf . && + test_must_fail git read-tree --prefix=/two/ $tree && + git read-tree --prefix=two/ $tree && + + git rm -rf . && + test_must_fail git read-tree --prefix=/ $tree && + git read-tree --prefix= $tree +' + test_done |