From: Derrick Stolee <dsto...@microsoft.com>
The 'git sparse-checkout set' subcommand takes a list of patterns
as arguments and writes them to the sparse-checkout file. Then, it
updates the working directory using 'git read-tree -mu HEAD'.
The 'set' subcommand will replace the entire contents of the
sparse-checkout file. The write_patterns_and_update() method is
extracted from cmd_sparse_checkout() to make it easier to implement
'add' and/or 'remove' subcommands in the future.
If the core.sparseCheckout config setting is disabled, then enable
the config setting in the worktree config. If we set the config
this way and the sparse-checkout fails, then re-disable the config
setting.
Signed-off-by: Derrick Stolee <dsto...@microsoft.com>
---
Documentation/git-sparse-checkout.txt | 6 ++++
builtin/sparse-checkout.c | 45 ++++++++++++++++++++++++++-
t/t1091-sparse-checkout-builtin.sh | 32 +++++++++++++++++++
3 files changed, 82 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-sparse-checkout.txt
b/Documentation/git-sparse-checkout.txt
index 930a361567..b933043b3d 100644
--- a/Documentation/git-sparse-checkout.txt
+++ b/Documentation/git-sparse-checkout.txt
@@ -42,6 +42,12 @@ To avoid interfering with other worktrees, it first enables
the
`extensions.worktreeConfig` setting and makes sure to set the
`core.sparseCheckout` setting in the worktree-specific config file.
+'set'::
+ Write a set of patterns to the sparse-checkout file, as given as
+ a list of arguments following the 'set' subcommand. Update the
+ working directory to match the new patterns. Enable the
+ core.sparseCheckout config setting if it is not already enabled.
+
SPARSE CHECKOUT
---------------
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index 6c336b7ab3..834ee421f0 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -8,7 +8,7 @@
#include "strbuf.h"
static char const * const builtin_sparse_checkout_usage[] = {
- N_("git sparse-checkout (init|list)"),
+ N_("git sparse-checkout (init|list|set) <options>"),
NULL
};
@@ -140,6 +140,47 @@ static int sparse_checkout_init(int argc, const char
**argv)
return update_working_directory();
}
+static int write_patterns_and_update(struct pattern_list *pl)
+{
+ char *sparse_filename;
+ FILE *fp;
+
+ sparse_filename = get_sparse_checkout_filename();
+ fp = fopen(sparse_filename, "w");
+ write_patterns_to_file(fp, pl);
+ fclose(fp);
+ free(sparse_filename);
+
+ return update_working_directory();
+}
+
+static int sparse_checkout_set(int argc, const char **argv, const char *prefix)
+{
+ static const char *empty_base = "";
+ int i;
+ struct pattern_list pl;
+ int result;
+ int set_config = 0;
+ memset(&pl, 0, sizeof(pl));
+
+ for (i = 1; i < argc; i++)
+ add_pattern(argv[i], empty_base, 0, &pl, 0);
+
+ if (!core_apply_sparse_checkout) {
+ sc_set_config(MODE_ALL_PATTERNS);
+ core_apply_sparse_checkout = 1;
+ set_config = 1;
+ }
+
+ result = write_patterns_and_update(&pl);
+
+ if (result && set_config)
+ sc_set_config(MODE_NO_PATTERNS);
+
+ clear_pattern_list(&pl);
+ return result;
+}
+
int cmd_sparse_checkout(int argc, const char **argv, const char *prefix)
{
static struct option builtin_sparse_checkout_options[] = {
@@ -162,6 +203,8 @@ int cmd_sparse_checkout(int argc, const char **argv, const
char *prefix)
return sparse_checkout_list(argc, argv);
if (!strcmp(argv[0], "init"))
return sparse_checkout_init(argc, argv);
+ if (!strcmp(argv[0], "set"))
+ return sparse_checkout_set(argc, argv, prefix);
}
usage_with_options(builtin_sparse_checkout_usage,
diff --git a/t/t1091-sparse-checkout-builtin.sh
b/t/t1091-sparse-checkout-builtin.sh
index cb74715ca6..bf2dc55bb1 100755
--- a/t/t1091-sparse-checkout-builtin.sh
+++ b/t/t1091-sparse-checkout-builtin.sh
@@ -96,4 +96,36 @@ test_expect_success 'clone --sparse' '
test_cmp expect dir
'
+test_expect_success 'set enables config' '
+ git init empty-config &&
+ (
+ cd empty-config &&
+ test_commit test file &&
+ test_path_is_missing .git/config.worktree &&
+ test_must_fail git sparse-checkout set nothing &&
+ test_i18ngrep "sparseCheckout = false" .git/config.worktree &&
+ git sparse-checkout set "/*" &&
+ test_i18ngrep "sparseCheckout = true" .git/config.worktree
+ )
+'
+
+test_expect_success 'set sparse-checkout using builtin' '
+ git -C repo sparse-checkout set "/*" "!/*/" "*folder*" &&
+ cat >expect <<-EOF &&
+ /*
+ !/*/
+ *folder*
+ EOF
+ git -C repo sparse-checkout list >actual &&
+ test_cmp expect actual &&
+ test_cmp expect repo/.git/info/sparse-checkout &&
+ ls repo >dir &&
+ cat >expect <<-EOF &&
+ a
+ folder1
+ folder2
+ EOF
+ test_cmp expect dir
+'
+
test_done
--
gitgitgadget
