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From: Stefan Beller <sbeller@google.com>
To: git@vger.kernel.org
Cc: jonathantanmy@google.com, Stefan Beller <sbeller@google.com>,
	Junio C Hamano <gitster@pobox.com>
Subject: [PATCH 1/9] sha1-array: provide oid_array_filter
Date: Wed, 28 Nov 2018 16:27:48 -0800
Message-ID: <20181129002756.167615-2-sbeller@google.com> (raw)
In-Reply-To: <20181129002756.167615-1-sbeller@google.com>

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 Documentation/technical/api-oid-array.txt |  5 +++++
 sha1-array.c                              | 17 +++++++++++++++++
 sha1-array.h                              |  3 +++
 3 files changed, 25 insertions(+)

diff --git a/Documentation/technical/api-oid-array.txt b/Documentation/technical/api-oid-array.txt
index 9febfb1d52..c97428c2c3 100644
--- a/Documentation/technical/api-oid-array.txt
+++ b/Documentation/technical/api-oid-array.txt
@@ -48,6 +48,11 @@ Functions
 	is not sorted, this function has the side effect of sorting
 	it.
 
+`oid_array_filter`::
+	Apply the callback function `want` to each entry in the array,
+	retaining only the entries for which the function returns true.
+	Preserve the order of the entries that are retained.
+
 Examples
 --------
 
diff --git a/sha1-array.c b/sha1-array.c
index b94e0ec0f5..d922e94e3f 100644
--- a/sha1-array.c
+++ b/sha1-array.c
@@ -77,3 +77,20 @@ int oid_array_for_each_unique(struct oid_array *array,
 	}
 	return 0;
 }
+
+void oid_array_filter(struct oid_array *array,
+		      for_each_oid_fn want,
+		      void *cb_data)
+{
+	unsigned nr = array->nr, src, dst;
+	struct object_id *oids = array->oid;
+
+	for (src = dst = 0; src < nr; src++) {
+		if (want(&oids[src], cb_data)) {
+			if (src != dst)
+				oidcpy(&oids[dst], &oids[src]);
+			dst++;
+		}
+	}
+	array->nr = dst;
+}
diff --git a/sha1-array.h b/sha1-array.h
index 232bf95017..55d016c4bf 100644
--- a/sha1-array.h
+++ b/sha1-array.h
@@ -22,5 +22,8 @@ int oid_array_for_each(struct oid_array *array,
 int oid_array_for_each_unique(struct oid_array *array,
 			      for_each_oid_fn fn,
 			      void *data);
+void oid_array_filter(struct oid_array *array,
+		      for_each_oid_fn want,
+		      void *cbdata);
 
 #endif /* SHA1_ARRAY_H */
-- 
2.20.0.rc1.387.gf8505762e3-goog


  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-29  0:27 [PATCHv2 0/9] Resending sb/submodule-recursive-fetch-gets-the-tip Stefan Beller
2018-11-29  0:27 ` Stefan Beller [this message]
2018-11-29  0:27 ` [PATCH 2/9] submodule.c: fix indentation Stefan Beller
2018-11-29  0:27 ` [PATCH 3/9] submodule.c: sort changed_submodule_names before searching it Stefan Beller
2018-12-05  0:12   ` Jonathan Tan
2018-11-29  0:27 ` [PATCH 4/9] submodule.c: tighten scope of changed_submodule_names struct Stefan Beller
2018-11-29  0:27 ` [PATCH 5/9] submodule: store OIDs in changed_submodule_names Stefan Beller
2018-11-29  0:27 ` [PATCH 6/9] repository: repo_submodule_init to take a submodule struct Stefan Beller
2018-11-29  0:27 ` [PATCH 7/9] submodule: migrate get_next_submodule to use repository structs Stefan Beller
2018-12-05  0:17   ` Jonathan Tan
2019-02-02  1:58   ` Jonathan Nieder
2018-11-29  0:27 ` [PATCH 8/9] submodule.c: fetch in submodules git directory instead of in worktree Stefan Beller
2018-12-05  0:38   ` Jonathan Tan
2018-11-29  0:27 ` [PATCH 9/9] fetch: try fetching submodules if needed objects were not fetched Stefan Beller
2018-12-05  1:07   ` Jonathan Tan
2018-12-06 21:26     ` [PATCH] fetch: ensure submodule objects fetched Stefan Beller
2018-12-09  1:57       ` Junio C Hamano
2018-12-05  3:10 ` [PATCHv2 0/9] Resending sb/submodule-recursive-fetch-gets-the-tip Junio C Hamano
2018-12-06 21:59   ` Stefan Beller
2018-12-07  0:25 ` Josh Steadmon
2019-01-15  1:38   ` Jonathan Nieder
  -- strict thread matches above, loose matches on Subject: below --
2018-10-16 18:13 [PATCH " Stefan Beller
2018-10-16 18:13 ` [PATCH 1/9] sha1-array: provide oid_array_filter Stefan Beller

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