Add four new extension tags for pretty-formatting dependencies

- The current method that --requires and friends use is kinda
  cumbersome and outputs extra whitespace for dependencies which
  dont have flags+version attached. Adding extensions for this
  is likely to be easier than teaching query formatting to
  permit conditionalizing on current value instead of just tag existence.

lib/rpmtag.h

@@ -302,6 +302,10 @@ typedef enum rpmTag_e {
     RPMTAG_MSSFMANIFEST		= 5038, /* s[] reservation (unimplemented) */
     RPMTAG_MSSFDOMAIN		= 5039, /* s[] reservation (unimplemented) */
     RPMTAG_INSTFILENAMES	= 5040, /* s[] extension */
+    RPMTAG_REQUIRENEVRS		= 5041, /* s[] extension */
+    RPMTAG_PROVIDENEVRS		= 5042, /* s[] extension */
+    RPMTAG_OBSOLETENEVRS	= 5043, /* s[] extension */
+    RPMTAG_CONFLICTNEVRS	= 5044, /* s[] extension */
 
     RPMTAG_FIRSTFREE_TAG	/*!< internal */
 } rpmTag;

lib/tagexts.c

@@ -726,6 +726,47 @@ static int epochnumTag(Header h, rpmtd td, headerGetFlags hgflags)
     return 1;
 }
 
+static int depnevrsTag(Header h, rpmtd td, headerGetFlags hgflags,
+			rpmTagVal tag)
+{
+    rpmds ds = rpmdsNew(h, tag, 0);
+    int ndeps = rpmdsCount(ds);
+
+    if (ndeps > 0) {
+	char **deps = xmalloc(sizeof(*deps) * ndeps);
+	int i;
+	while ((i = rpmdsNext(ds)) >= 0) {
+	    deps[i] = rpmdsNewDNEVR(NULL, ds);
+	}
+	td->data = deps;
+	td->type = RPM_STRING_ARRAY_TYPE;
+	td->count = ndeps;
+	td->flags |= (RPMTD_ALLOCED | RPMTD_PTR_ALLOCED);
+    }
+    rpmdsFree(ds);
+    return (ndeps > 0);
+}
+
+static int requirenevrsTag(Header h, rpmtd td, headerGetFlags hgflags)
+{
+    return depnevrsTag(h, td, hgflags, RPMTAG_REQUIRENAME);
+}
+
+static int providenevrsTag(Header h, rpmtd td, headerGetFlags hgflags)
+{
+    return depnevrsTag(h, td, hgflags, RPMTAG_PROVIDENAME);
+}
+
+static int obsoletenevrsTag(Header h, rpmtd td, headerGetFlags hgflags)
+{
+    return depnevrsTag(h, td, hgflags, RPMTAG_OBSOLETENAME);
+}
+
+static int conflictnevrsTag(Header h, rpmtd td, headerGetFlags hgflags)
+{
+    return depnevrsTag(h, td, hgflags, RPMTAG_CONFLICTNAME);
+}
+
 static const struct headerTagFunc_s rpmHeaderTagExtensions[] = {
     { RPMTAG_GROUP,		groupTag },
     { RPMTAG_DESCRIPTION,	descriptionTag },
@@ -751,6 +792,10 @@ static const struct headerTagFunc_s rpmHeaderTagExtensions[] = {
     { RPMTAG_VERBOSE,		verboseTag },
     { RPMTAG_EPOCHNUM,		epochnumTag },
     { RPMTAG_INSTFILENAMES,	instfilenamesTag },
+    { RPMTAG_REQUIRENEVRS,	requirenevrsTag },
+    { RPMTAG_PROVIDENEVRS,	providenevrsTag },
+    { RPMTAG_OBSOLETENEVRS,	obsoletenevrsTag },
+    { RPMTAG_CONFLICTNEVRS,	conflictnevrsTag },
     { 0, 			NULL }
 };
 

tests/rpmgeneral.at

@@ -65,6 +65,7 @@ CLASSDICT
 COLLECTIONS
 CONFLICTFLAGS
 CONFLICTNAME
+CONFLICTNEVRS
 CONFLICTS
 CONFLICTVERSION
 COOKIE
@@ -142,6 +143,7 @@ NVRA
 O
 OBSOLETEFLAGS
 OBSOLETENAME
+OBSOLETENEVRS
 OBSOLETES
 OBSOLETEVERSION
 OLDFILENAMES
@@ -191,6 +193,7 @@ PREUNFLAGS
 PREUNPROG
 PROVIDEFLAGS
 PROVIDENAME
+PROVIDENEVRS
 PROVIDES
 PROVIDEVERSION
 PUBKEYS
@@ -200,6 +203,7 @@ RELEASE
 REMOVETID
 REQUIREFLAGS
 REQUIRENAME
+REQUIRENEVRS
 REQUIRES
 REQUIREVERSION
 RPMVERSION