Thread (184 messages) flat view 184 messages, 6 authors, 2021-04-01

Re: [PATCH 10/20] sparse-checkout: hold pattern list in index

From: Elijah Newren <hidden>
Date: 2021-02-25 07:16:16

On Tue, Feb 23, 2021 at 12:14 PM Derrick Stolee via GitGitGadget
[off-list ref] wrote:
From: Derrick Stolee <redacted>

As we modify the sparse-checkout definition, we perform index operations
on a pattern_list that only exists in-memory. This allows easy backing
out in case the index update fails.

However, if the index write itself cares about the sparse-checkout
pattern set, we need access to that in-memory copy. Place a pointer to
a 'struct pattern_list' in the index so we can access this on-demand.
This will be used in the next change which uses the sparse-checkout
definition to filter out directories that are outsie the sparse cone.
Looks like you still have the "outsie" typo.  ;-)
quoted hunk ↗ jump to hunk
Signed-off-by: Derrick Stolee <redacted>
---
 builtin/sparse-checkout.c | 17 ++++++++++-------
 cache.h                   |  2 ++
 2 files changed, 12 insertions(+), 7 deletions(-)
diff --git a/builtin/sparse-checkout.c b/builtin/sparse-checkout.c
index 2306a9ad98e0..e00b82af727b 100644
--- a/builtin/sparse-checkout.c
+++ b/builtin/sparse-checkout.c
@@ -110,6 +110,8 @@ static int update_working_directory(struct pattern_list *pl)
        if (is_index_unborn(r->index))
                return UPDATE_SPARSITY_SUCCESS;

+       r->index->sparse_checkout_patterns = pl;
+
        memset(&o, 0, sizeof(o));
        o.verbose_update = isatty(2);
        o.update = 1;
@@ -138,6 +140,7 @@ static int update_working_directory(struct pattern_list *pl)
        else
                rollback_lock_file(&lock_file);

+       r->index->sparse_checkout_patterns = NULL;
        return result;
 }
@@ -517,19 +520,18 @@ static int modify_pattern_list(int argc, const char **argv, enum modify_type m)
 {
        int result;
        int changed_config = 0;
-       struct pattern_list pl;
-       memset(&pl, 0, sizeof(pl));
+       struct pattern_list *pl = xcalloc(1, sizeof(*pl));

        switch (m) {
        case ADD:
                if (core_sparse_checkout_cone)
-                       add_patterns_cone_mode(argc, argv, &pl);
+                       add_patterns_cone_mode(argc, argv, pl);
                else
-                       add_patterns_literal(argc, argv, &pl);
+                       add_patterns_literal(argc, argv, pl);
                break;

        case REPLACE:
-               add_patterns_from_input(&pl, argc, argv);
+               add_patterns_from_input(pl, argc, argv);
                break;
        }
@@ -539,12 +541,13 @@ static int modify_pattern_list(int argc, const char **argv, enum modify_type m)
                changed_config = 1;
        }

-       result = write_patterns_and_update(&pl);
+       result = write_patterns_and_update(pl);

        if (result && changed_config)
                set_config(MODE_NO_PATTERNS);

-       clear_pattern_list(&pl);
+       clear_pattern_list(pl);
+       free(pl);
        return result;
 }
diff --git a/cache.h b/cache.h
index 1336c8d7435e..d75b352f38d3 100644
--- a/cache.h
+++ b/cache.h
@@ -307,6 +307,7 @@ static inline unsigned int canon_mode(unsigned int mode)
 struct split_index;
 struct untracked_cache;
 struct progress;
+struct pattern_list;

 struct index_state {
        struct cache_entry **cache;
@@ -332,6 +333,7 @@ struct index_state {
        struct mem_pool *ce_mem_pool;
        struct progress *progress;
        struct repository *repo;
+       struct pattern_list *sparse_checkout_patterns;
 };

 /* Name hashing */
--
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