From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
`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@xxxxxxxxx>
Helped-by: Eric Sunshine <sunshine@xxxxxxxxxxxxxx>
Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
---
Documentation/git-sparse-checkout.txt | 16 +++++++++++----
builtin/sparse-checkout.c | 28 +++++++++++++--------------
sparse-index.c | 10 +++-------
t/t1091-sparse-checkout-builtin.sh | 4 ++--
4 files changed, 30 insertions(+), 28 deletions(-)
diff --git a/Documentation/git-sparse-checkout.txt b/Documentation/git-sparse-checkout.txt
index b81dbe06543..94dad137b96 100644
--- a/Documentation/git-sparse-checkout.txt
+++ b/Documentation/git-sparse-checkout.txt
@@ -31,13 +31,21 @@ COMMANDS
Describe the patterns in the sparse-checkout file.
'set'::
- Enable the necessary config settings
- (extensions.worktreeConfig, core.sparseCheckout,
- core.sparseCheckoutCone) if they are not already enabled, and
- write a set of patterns to the sparse-checkout file from the
+ Enable the necessary sparse-checkout config settings
+ (`core.sparseCheckout`, `core.sparseCheckoutCone`, and
+ `index.sparse`) if they are not already set to the desired values,
+ and write a set of patterns to the sparse-checkout file from the
list of arguments following the 'set' subcommand. Update the
working directory to match the new patterns.
+
+To ensure that adjusting the sparse-checkout settings within a worktree
+does not alter the sparse-checkout settings in other worktrees, the 'set'
+subcommand will upgrade your repository config to use worktree-specific
+config if not already present. The sparsity defined by the arguments to
+the 'set' subcommand are stored in the worktree-specific sparse-checkout
+file. See linkgit:git-worktree[1] and the documentation of
+`extensions.worktreeConfig` in linkgit:git-config[1] for more details.
++
When the `--stdin` option is provided, the patterns are read from
standard in as a newline-delimited list instead of from the arguments.
+
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index 679c1070368..314c8d61f80 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -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;
}
diff --git a/sparse-index.c b/sparse-index.c
index a1d505d50e9..e93609999e0 100644
--- a/sparse-index.c
+++ b/sparse-index.c
@@ -99,13 +99,9 @@ static int convert_to_sparse_rec(struct index_state *istate,
int set_sparse_index_config(struct repository *repo, int enable)
{
- int res;
- char *config_path = repo_git_path(repo, "config.worktree");
- res = git_config_set_in_file_gently(config_path,
- "index.sparse",
- enable ? "true" : NULL);
- free(config_path);
-
+ int res = repo_config_set_worktree_gently(repo,
+ "index.sparse",
+ enable ? "true" : "false");
prepare_repo_settings(repo);
repo->settings.sparse_index = enable;
return res;
diff --git a/t/t1091-sparse-checkout-builtin.sh b/t/t1091-sparse-checkout-builtin.sh
index 42776984fe7..be6ea4ffe33 100755
--- a/t/t1091-sparse-checkout-builtin.sh
+++ b/t/t1091-sparse-checkout-builtin.sh
@@ -117,7 +117,7 @@ test_expect_success 'switching to cone mode with non-cone mode patterns' '
cd bad-patterns &&
git sparse-checkout init &&
git sparse-checkout add dir &&
- git config core.sparseCheckoutCone true &&
+ git config --worktree core.sparseCheckoutCone true &&
test_must_fail git sparse-checkout add dir 2>err &&
grep "existing sparse-checkout patterns do not use cone mode" err
)
@@ -256,7 +256,7 @@ test_expect_success 'sparse-index enabled and disabled' '
test_cmp expect actual &&
git -C repo config --list >config &&
- ! grep index.sparse config
+ test_cmp_config -C repo false index.sparse
)
'
--
gitgitgadget
