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parallel-checkout: add tests related to path collisions

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Add tests to confirm that path collisions are properly detected by
checkout workers, both to avoid race conditions and to report colliding
entries on clone.

Co-authored-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Matheus Tavares
2021-05-04 13:27:32 -03:00
committed by Junio C Hamano
parent d0e5d35700
commit 6a7bc9d118
3 changed files with 168 additions and 2 deletions
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4
parallel-checkout.c
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@ -8,6 +8,7 @@
#include "sigchain.h"
#include "streaming.h"
#include "thread-utils.h"
#include "trace2.h"
struct pc_worker {
struct child_process cp;
@ -326,6 +327,7 @@ void write_pc_item(struct parallel_checkout_item *pc_item,
if (dir_sep && !has_dirs_only_path(path.buf, dir_sep - path.buf,
state->base_dir_len)) {
pc_item->status = PC_ITEM_COLLIDED;
trace2_data_string("pcheckout", NULL, "collision/dirname", path.buf);
goto out;
}
@ -341,6 +343,8 @@ void write_pc_item(struct parallel_checkout_item *pc_item,
* call should have already caught these cases.
*/
pc_item->status = PC_ITEM_COLLIDED;
trace2_data_string("pcheckout", NULL,
"collision/basename", path.buf);
} else {
error_errno("failed to open file '%s'", path.buf);
pc_item->status = PC_ITEM_FAILED;