[PATCH v3 1/5] commit-reach: reduce requirements for remove_redundant()

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From: Derrick Stolee <dstolee@xxxxxxxxxxxxx>

Remove a comment at the beggining of remove_redundant() that mentions a
reordering of the input array to have the initial segment be the
independent commits and the final segment be the redundant commits.
While this behavior is followed in remove_redundant(), no callers rely
on that behavior.

Remove the final loop that copies this final segment and update the
comment to match the new behavior.

Signed-off-by: Derrick Stolee <dstolee@xxxxxxxxxxxxx>
---
 commit-reach.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/commit-reach.c b/commit-reach.c
index e38771ca5a1f..9af51fe7e078 100644
--- a/commit-reach.c
+++ b/commit-reach.c
@@ -160,9 +160,10 @@ static int remove_redundant(struct repository *r, struct commit **array, int cnt
 {
 	/*
 	 * Some commit in the array may be an ancestor of
-	 * another commit.  Move such commit to the end of
-	 * the array, and return the number of commits that
-	 * are independent from each other.
+	 * another commit.  Move the independent commits to the
+	 * beginning of 'array' and return their number. Callers
+	 * should not rely upon the contents of 'array' after
+	 * that number.
 	 */
 	struct commit **work;
 	unsigned char *redundant;
@@ -209,9 +210,6 @@ static int remove_redundant(struct repository *r, struct commit **array, int cnt
 	for (i = filled = 0; i < cnt; i++)
 		if (!redundant[i])
 			array[filled++] = work[i];
-	for (j = filled, i = 0; i < cnt; i++)
-		if (redundant[i])
-			array[j++] = work[i];
 	free(work);
 	free(redundant);
 	free(filled_index);
-- 
gitgitgadget




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