From 8e0d85c61e9ee6dc3df76c8262fb0b195d0b8a62 Mon Sep 17 00:00:00 2001
From: Colin Walters <walters@verbum.org>
Date: Tue, 23 Feb 2010 11:02:46 -0500
Subject: [PATCH] Add 'VCS' key

Spec files have a lot of metadata about a project.  However one of the
most key components is the upstream version control system which was
notably lacking.

Resolve this by adding a "VCS" key.  There is no specification
for contents of this key, given that the set of version control
systems (and features thereof) are not well-defined.  However,
recommendations are:

 * git: This URL should be in a form that can be passed to "git clone",
   with the additional feature that an optional fragment identifier "#foo"
   denotes a branch or tag.
---
 build/files.c         | 1 +
 build/parsePreamble.c | 3 +++
 lib/rpmlib.h          | 1 +
 3 files changed, 5 insertions(+)

diff --git a/build/files.c b/build/files.c
index 45a23a1..2c3320e 100644
--- a/build/files.c
+++ b/build/files.c
@@ -2012,6 +2012,7 @@ void initSourceHeader(Spec spec)
 	case RPMTAG_CHANGELOGNAME:
 	case RPMTAG_CHANGELOGTEXT:
 	case RPMTAG_URL:
+	case RPMTAG_VCS:
 	case RPMTAG_BUILDHOST:
 	case HEADER_I18NTABLE:
 	    if (ptr)
diff --git a/build/parsePreamble.c b/build/parsePreamble.c
index aac0aef..14a6eeb 100644
--- a/build/parsePreamble.c
+++ b/build/parsePreamble.c
@@ -25,6 +25,7 @@ static rpmTag copyTagsDuringParse[] = {
     RPMTAG_VENDOR,
     RPMTAG_ICON,
     RPMTAG_URL,
+    RPMTAG_VCS,
     RPMTAG_CHANGELOGTIME,
     RPMTAG_CHANGELOGNAME,
     RPMTAG_CHANGELOGTEXT,
@@ -600,6 +601,7 @@ static int handlePreambleTag(Spec spec, Package pkg, int tag, const char *macro,
 	(void) headerAddEntry(pkg->header, tag, RPM_STRING_TYPE, field, 1);
 	break;
       case RPMTAG_URL:
+      case RPMTAG_VCS:
 	SINGLE_TOKEN_ONLY;
 	(void) headerAddEntry(pkg->header, tag, RPM_STRING_TYPE, field, 1);
 	break;
@@ -801,6 +803,7 @@ static struct PreambleRec_s const preambleList[] = {
     {RPMTAG_GROUP,		1, LEN_AND_STR("group")},
     {RPMTAG_PACKAGER,		0, LEN_AND_STR("packager")},
     {RPMTAG_URL,		0, LEN_AND_STR("url")},
+    {RPMTAG_VCS,		0, LEN_AND_STR("vcs")},
     {RPMTAG_SOURCE,		0, LEN_AND_STR("source")},
     {RPMTAG_PATCH,		0, LEN_AND_STR("patch")},
     {RPMTAG_NOSOURCE,		0, LEN_AND_STR("nosource")},
diff --git a/lib/rpmlib.h b/lib/rpmlib.h
index d2f5116..fd3fa7b 100644
--- a/lib/rpmlib.h
+++ b/lib/rpmlib.h
@@ -443,6 +443,7 @@ typedef enum rpmTag_e {
     RPMTAG_DEPENDSDICT		= 1145,
     RPMTAG_SOURCEPKGID		= 1146,
     RPMTAG_DISTTAG		= 1155, /* s */
+    RPMTAG_VCS			= 5034, /* s */
     RPMTAG_AUTOINSTALLED	= 5094, /* i */
     RPMTAG_IDENTITY		= 5095, /* s */
 /*@-enummemuse@*/