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[PATCH v5 26/40] odb-helper: add 'script_mode' to 'struct odb_helper'

From
Christian Couder <christian.couder@gmail.com>
Date
Aug 3, 2017, 09:19 UTC
Message-ID
<20170803091926.1755-27-chriscool@tuxfamily.org>
In-Reply-To
<20170803091926.1755-1-chriscool@tuxfamily.org>

to prepare for having a long running odb helper sub-process handling the communication between Git and an external odb.

We introduce "odb.<name>.subprocesscommand" to make it possible to define such a sub-process, and we mark such odb helpers with the new 'script_mode' field set to 0.

Helpers defined using the existing "odb.<name>.scriptcommand" are marked with the 'script_mode' field set to 1.

Implementation of the different capabilities/instructions in the new (sub-)process mode is left for following commits.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 external-odb.c |  8 +++++++-
 odb-helper.c   | 19 ++++++++++++++-----
 odb-helper.h   |  1 +
 3 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/external-odb.c b/external-odb.c
index 31d21bfe04..ccca67eff5 100644
--- a/external-odb.c
+++ b/external-odb.c
@@ -32,8 +32,14 @@ static int external_odb_config(const char *var, const char *value, void *data)
 
 	o = find_or_create_helper(name, namelen);
 
-	if (!strcmp(subkey, "scriptcommand"))
+	if (!strcmp(subkey, "scriptcommand")) {
+		o->script_mode = 1;
 		return git_config_string(&o->cmd, var, value);
+	}
+	if (!strcmp(subkey, "subprocesscommand")) {
+		o->script_mode = 0;
+		return git_config_string(&o->cmd, var, value);
+	}
 
 	return 0;
 }
diff --git a/odb-helper.c b/odb-helper.c
index b1f5464214..4c16dd297a 100644
--- a/odb-helper.c
+++ b/odb-helper.c
@@ -123,6 +123,9 @@ int odb_helper_init(struct odb_helper *o)
 	FILE *fh;
 	struct strbuf line = STRBUF_INIT;
 
+	if (!o->script_mode)
+		return 0;
+
 	if (odb_helper_start(o, &cmd, 0, "init") < 0)
 		return -1;
 
@@ -173,16 +176,12 @@ static int odb_helper_object_cmp(const void *va, const void *vb)
 	return hashcmp(a->sha1, b->sha1);
 }
 
-static void odb_helper_load_have(struct odb_helper *o)
+static void have_object_script(struct odb_helper *o)
 {
 	struct odb_helper_cmd cmd;
 	FILE *fh;
 	struct strbuf line = STRBUF_INIT;
 
-	if (o->have_valid)
-		return;
-	o->have_valid = 1;
-
 	if (odb_helper_start(o, &cmd, 0, "have") < 0)
 		return;
 
@@ -194,6 +193,16 @@ static void odb_helper_load_have(struct odb_helper *o)
 	strbuf_release(&line);
 	fclose(fh);
 	odb_helper_finish(o, &cmd);
+}
+
+static void odb_helper_load_have(struct odb_helper *o)
+{
+	if (o->have_valid)
+		return;
+	o->have_valid = 1;
+
+	if (o->script_mode)
+		have_object_script(o);
 
 	qsort(o->have, o->have_nr, sizeof(*o->have), odb_helper_object_cmp);
 }
diff --git a/odb-helper.h b/odb-helper.h
index f2fd2b7c9c..04b85f1d02 100644
--- a/odb-helper.h
+++ b/odb-helper.h
@@ -15,6 +15,7 @@ struct odb_helper {
 	const char *name;
 	const char *cmd;
 	unsigned int supported_capabilities;
+	int script_mode;
 
 	struct odb_helper_object {
 		unsigned char sha1[20];
-- 
2.14.0.rc1.52.gf02fb0ddac.dirty
Previous: Christian CouderNext: Christian Couder
Message 49 of 73 in “Add initial experimental external ODB support”
  1. 00/40 Add initial experimental external ODB supportChristian Couder, Aug 3, 2017
  2. 03/40 t0021/rot13-filter: improve 'if .. elsif .. else' styleChristian Couder, Aug 3, 2017
  3. 04/40 Add Git/Packet.pm from parts of t0021/rot13-filter.plChristian Couder, Aug 3, 2017
  4. Junio C HamanoAug 3, 2017
  5. Christian CouderAug 4, 2017
  6. 07/40 Git/Packet.pm: add packet_initialize()Christian Couder, Aug 3, 2017
  7. 09/40 sha1_file: prepare for external odbsChristian Couder, Aug 3, 2017
  8. 11/40 odb-helper: add odb_helper_init() to send 'init' instructionChristian Couder, Aug 3, 2017
  9. Lars SchneiderSep 10, 2017
  10. Christian CouderSep 14, 2017
  11. 14/40 external-odb: accept only blobs for nowChristian Couder, Aug 3, 2017
  12. Junio C HamanoAug 3, 2017
  13. Christian CouderSep 14, 2017
  14. 12/40 t0400: add 'put_raw_obj' instruction to odb-helper scriptChristian Couder, Aug 3, 2017
  15. Lars SchneiderSep 10, 2017
  16. Christian CouderSep 14, 2017
  17. 20/40 lib-httpd: add list.shChristian Couder, Aug 3, 2017
  18. 13/40 external odb: add 'put_raw_obj' supportChristian Couder, Aug 3, 2017
  19. Junio C HamanoAug 3, 2017
  20. Christian CouderSep 14, 2017
  21. 22/40 odb-helper: add odb_helper_get_raw_object()Christian Couder, Aug 3, 2017
  22. 19/40 lib-httpd: add upload.shChristian Couder, Aug 3, 2017
  23. Junio C HamanoAug 3, 2017
  24. Christian CouderSep 14, 2017
  25. 21/40 lib-httpd: add apache-e-odb.confChristian Couder, Aug 3, 2017
  26. 29/40 Add t0460 to test passing git objectsChristian Couder, Aug 3, 2017
  27. 28/40 Add t0450 to test 'get_direct' mechanismChristian Couder, Aug 3, 2017
  28. 33/40 Add t0480 to test "have" capability and raw objectsChristian Couder, Aug 3, 2017
  29. 34/40 external-odb: use 'odb=magic' attribute to mark odb blobsChristian Couder, Aug 3, 2017
  30. 37/40 clone: add --initial-refspec optionChristian Couder, Aug 3, 2017
  31. 36/40 clone: add 'initial' param to write_remote_refs()Christian Couder, Aug 3, 2017
  32. 35/40 Add Documentation/technical/external-odb.txtChristian Couder, Aug 3, 2017
  33. Stefan BellerAug 3, 2017
  34. Christian CouderAug 25, 2017
  35. Jonathan TanAug 25, 2017
  36. Christian CouderAug 29, 2017
  37. Ben PeartAug 28, 2017
  38. Christian CouderAug 29, 2017
  39. Ben PeartAug 30, 2017
  40. Christian CouderAug 30, 2017
  41. 30/40 odb-helper: add put_object_process()Christian Couder, Aug 3, 2017
  42. 32/40 odb-helper: add have_object_process()Christian Couder, Aug 3, 2017
  43. 38/40 clone: disable external odb before initial cloneChristian Couder, Aug 3, 2017
  44. 39/40 Add tests for 'clone --initial-refspec'Christian Couder, Aug 3, 2017
  45. 40/40 Add t0430 to test cloning using bundlesChristian Couder, Aug 3, 2017
  46. 31/40 Add t0470 to test passing raw objectsChristian Couder, Aug 3, 2017
  47. 27/40 odb-helper: add init_object_process()Christian Couder, Aug 3, 2017
  48. 23/40 pack-objects: don't pack objects in external odbsChristian Couder, Aug 3, 2017
  49. 26/40 odb-helper: add 'script_mode' to 'struct odb_helper'Christian Couder, Aug 3, 2017
  50. 24/40 Add t0420 to test transfer to HTTP external odbChristian Couder, Aug 3, 2017
  51. 25/40 external-odb: add 'get_direct' supportChristian Couder, Aug 3, 2017
  52. Junio C HamanoAug 3, 2017
  53. Christian CouderSep 14, 2017
  54. Jonathan TanSep 14, 2017
  55. Christian CouderSep 15, 2017
  56. Jonathan TanSep 15, 2017
  57. 15/40 t0400: add test for external odb write supportChristian Couder, Aug 3, 2017
  58. 17/40 Add t0410 to test external ODB transferChristian Couder, Aug 3, 2017
  59. 18/40 lib-httpd: pass config file to start_httpd()Christian Couder, Aug 3, 2017
  60. 16/40 Add GIT_NO_EXTERNAL_ODB env variableChristian Couder, Aug 3, 2017
  61. 10/40 Add initial external odb supportChristian Couder, Aug 3, 2017
  62. Junio C HamanoAug 3, 2017
  63. Jeff KingAug 3, 2017
  64. Christian CouderSep 14, 2017
  65. 08/40 Git/Packet.pm: add capability functionsChristian Couder, Aug 3, 2017
  66. Junio C HamanoAug 3, 2017
  67. Christian CouderAug 4, 2017
  68. 01/40 builtin/clone: get rid of 'value' strbufChristian Couder, Aug 3, 2017
  69. 05/40 t0021/rot13-filter: use Git/Packet.pmChristian Couder, Aug 3, 2017
  70. 06/40 Git/Packet.pm: improve error messageChristian Couder, Aug 3, 2017
  71. 02/40 t0021/rot13-filter: refactor packet reading functionsChristian Couder, Aug 3, 2017
  72. Lars SchneiderSep 10, 2017
  73. Christian CouderSep 14, 2017

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