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sparse-checkout: set worktree-config correctly

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`git sparse-checkout set/init` enables worktree-specific
configuration[*] by setting extensions.worktreeConfig=true, but neglects
to perform the additional necessary bookkeeping of relocating
`core.bare=true` and `core.worktree` from $GIT_COMMON_DIR/config to
$GIT_COMMON_DIR/config.worktree, as documented in git-worktree.txt. As a
result of this oversight, these settings, which are nonsensical for
secondary worktrees, can cause Git commands to incorrectly consider a
worktree bare (in the case of `core.bare`) or operate on the wrong
worktree (in the case of `core.worktree`). Fix this problem by taking
advantage of the recently-added init_worktree_config() which enables
`extensions.worktreeConfig` and takes care of necessary bookkeeping.

While at it, for backward-compatibility reasons, also stop upgrading the
repository format to "1" since doing so is (unintentionally) not
required to take advantage of `extensions.worktreeConfig`, as explained
by 11664196ac ("Revert "check_repository_format_gently(): refuse
extensions for old repositories"", 2020-07-15).

[*] The main reason to use worktree-specific config for the
sparse-checkout builtin was to avoid enabling sparse-checkout patterns
in one and causing a loss of files in another. If a worktree does not
have a sparse-checkout patterns file, then the sparse-checkout logic
will not kick in on that worktree.

Reported-by: Sean Allred <allred.sean@gmail.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Reviewed-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee
2022-02-07 21:33:01 +00:00
committed by Junio C Hamano
parent fe18733927
commit 7316dc5f6f
4 changed files with 30 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
builtin/sparse-checkout.c
View File

@ -15,6 +15,7 @@
#include "wt-status.h"
#include "quote.h"
#include "sparse-index.h"
#include "worktree.h"
static const char *empty_base = "";
@ -359,26 +360,23 @@ enum sparse_checkout_mode {
static int set_config(enum sparse_checkout_mode mode)
{
const char *config_path;
if (upgrade_repository_format(1) < 0)
die(_("unable to upgrade repository format to enable worktreeConfig"));
if (git_config_set_gently("extensions.worktreeConfig", "true")) {
error(_("failed to set extensions.worktreeConfig setting"));
/* Update to use worktree config, if not already. */
if (init_worktree_config(the_repository)) {
error(_("failed to initialize worktree config"));
return 1;
}
config_path = git_path("config.worktree");
git_config_set_in_file_gently(config_path,
"core.sparseCheckout",
mode ? "true" : NULL);
git_config_set_in_file_gently(config_path,
"core.sparseCheckoutCone",
mode == MODE_CONE_PATTERNS ? "true" : NULL);
if (repo_config_set_worktree_gently(the_repository,
"core.sparseCheckout",
mode ? "true" : "false") ||
repo_config_set_worktree_gently(the_repository,
"core.sparseCheckoutCone",
mode == MODE_CONE_PATTERNS ?
"true" : "false"))
return 1;
if (mode == MODE_NO_PATTERNS)
set_sparse_index_config(the_repository, 0);
return set_sparse_index_config(the_repository, 0);
return 0;
}