Add RPMTAG_INSTFILENAMES tag extension for state-aware file lists

- For a more consistent experience wrt all the state-awareness stuff,
  this needs to be easily querifiable too.
- Also makes the tagnames kludgery from commit
  cac8c389607d7a5735b2905035fdfe4404670d06 unnecessary

3 files changed, 48 insertions, 21 deletions

diff --git a/lib/rpmtag.h b/lib/rpmtag.h
index 775d41429..e9878c109 100644
--- a/lib/rpmtag.h
+++ b/lib/rpmtag.h
@@ -301,6 +301,7 @@ typedef enum rpmTag_e {
     RPMTAG_ORDERFLAGS		= 5037,	/* i[] */
     RPMTAG_MSSFMANIFEST		= 5038, /* s[] reservation (unimplemented) */
     RPMTAG_MSSFDOMAIN		= 5039, /* s[] reservation (unimplemented) */
+    RPMTAG_INSTFILENAMES	= 5040, /* s[] extension */
 
     RPMTAG_FIRSTFREE_TAG	/*!< internal */
 } rpmTag;
@@ -313,7 +314,6 @@ typedef enum rpmTag_e {
 typedef enum rpmDbiTag_e {
     RPMDBI_PACKAGES		= 0,	/* Installed package headers. */
     RPMDBI_LABEL		= 2,	/* NEVRA label pseudo index */
-    RPMDBI_INSTFILENAMES	= 32,	/* Files with inst. state pseudo idx */
     RPMDBI_NAME			= RPMTAG_NAME,
     RPMDBI_BASENAMES		= RPMTAG_BASENAMES,
     RPMDBI_GROUP		= RPMTAG_GROUP,
@@ -326,6 +326,7 @@ typedef enum rpmDbiTag_e {
     RPMDBI_INSTALLTID		= RPMTAG_INSTALLTID,
     RPMDBI_SIGMD5		= RPMTAG_SIGMD5,
     RPMDBI_SHA1HEADER		= RPMTAG_SHA1HEADER,
+    RPMDBI_INSTFILENAMES	= RPMTAG_INSTFILENAMES,
 } rpmDbiTag;
 
 /** \ingroup signature
diff --git a/lib/tagexts.c b/lib/tagexts.c
index 4dc6e7576..d316396ff 100644
--- a/lib/tagexts.c
+++ b/lib/tagexts.c
@@ -36,18 +36,18 @@ struct headerTagFunc_s {
  * @retval *fnp		array of file names
  * @retval *fcp		number of files
  */
-static void rpmfiBuildFNames(Header h, rpmTag tagN,
+static void rpmfiBuildFNames(Header h, rpmTag tagN, int withstate,
 	const char *** fnp, rpm_count_t * fcp)
 {
-    const char **baseNames, **dirNames, **fileNames;
+    const char **baseNames, **dirNames, **fileNames, *fileStates;
     uint32_t *dirIndexes;
-    rpm_count_t count;
-    size_t size;
+    rpm_count_t count, retcount;
+    size_t size = 0;
     rpmTag dirNameTag = RPMTAG_DIRNAMES;
     rpmTag dirIndexesTag = RPMTAG_DIRINDEXES;
     char * t;
-    int i;
-    struct rpmtd_s bnames, dnames, dixs;
+    int i, j;
+    struct rpmtd_s bnames, dnames, dixs, fstates;
 
     if (tagN == RPMTAG_ORIGBASENAMES) {
 	dirNameTag = RPMTAG_ORIGDIRNAMES;
@@ -62,33 +62,47 @@ static void rpmfiBuildFNames(Header h, rpmTag tagN,
     (void) headerGet(h, dirNameTag, &dnames, HEADERGET_MINMEM);
     (void) headerGet(h, dirIndexesTag, &dixs, HEADERGET_MINMEM);
 
-    count = rpmtdCount(&bnames);
+    retcount = count = rpmtdCount(&bnames);
     baseNames = bnames.data;
     dirNames = dnames.data;
     dirIndexes = dixs.data;
 
+    if (withstate) {
+	headerGet(h, RPMTAG_FILESTATES, &fstates, HEADERGET_MINMEM);
+	fileStates = fstates.data;
+    }
+
     /*
      * fsm, psm and rpmfi assume the data is stored in a single allocation
      * block, until those assumptions are removed we need to jump through
      * a few hoops here and precalculate sizes etc
      */
-    size = sizeof(*fileNames) * count;
-    for (i = 0; i < count; i++)
+    for (i = 0; i < count; i++) {
+	if (withstate && !RPMFILE_IS_INSTALLED(fileStates[i])) {
+	    retcount--;
+	    continue;
+	}
 	size += strlen(baseNames[i]) + strlen(dirNames[dirIndexes[i]]) + 1;
+    }
+    size += sizeof(*fileNames) * retcount;
 
     fileNames = xmalloc(size);
-    t = ((char *) fileNames) + (sizeof(*fileNames) * count);
-    for (i = 0; i < count; i++) {
-	fileNames[i] = t;
+    t = ((char *) fileNames) + (sizeof(*fileNames) * retcount);
+    for (i = 0, j = 0; i < count; i++) {
+	if (withstate && !RPMFILE_IS_INSTALLED(fileStates[i]))
+	    continue;
+	fileNames[j++] = t;
 	t = stpcpy( stpcpy(t, dirNames[dirIndexes[i]]), baseNames[i]);
 	*t++ = '\0';
     }
     rpmtdFreeData(&bnames);
     rpmtdFreeData(&dnames);
     rpmtdFreeData(&dixs);
+    if (withstate)
+	rpmtdFreeData(&fstates);
 
     *fnp = fileNames;
-    *fcp = count;
+    *fcp = retcount;
 }
 
 static int filedepTag(Header h, rpmTag tagN, rpmtd td, headerGetFlags hgflags)
@@ -274,6 +288,22 @@ static int triggertypeTag(Header h, rpmtd td, headerGetFlags hgflags)
 }
 
 /**
+ * Retrieve installed file paths.
+ * @param h		header
+ * @retval td		tag data container
+ * @return		1 on success
+ */
+static int instfilenamesTag(Header h, rpmtd td, headerGetFlags hgflags)
+{
+    rpmfiBuildFNames(h, RPMTAG_BASENAMES, 1,
+		     (const char ***) &(td->data), &(td->count));
+    if (td->data) {
+	td->type = RPM_STRING_ARRAY_TYPE;
+	td->flags = RPMTD_ALLOCED;
+    }
+    return (td->data != NULL); 
+}
+/**
  * Retrieve file paths.
  * @param h		header
  * @retval td		tag data container
@@ -281,7 +311,7 @@ static int triggertypeTag(Header h, rpmtd td, headerGetFlags hgflags)
  */
 static int filenamesTag(Header h, rpmtd td, headerGetFlags hgflags)
 {
-    rpmfiBuildFNames(h, RPMTAG_BASENAMES, 
+    rpmfiBuildFNames(h, RPMTAG_BASENAMES, 0,
 		     (const char ***) &(td->data), &(td->count));
     if (td->data) {
 	td->type = RPM_STRING_ARRAY_TYPE;
@@ -298,7 +328,7 @@ static int filenamesTag(Header h, rpmtd td, headerGetFlags hgflags)
  */
 static int origfilenamesTag(Header h, rpmtd td, headerGetFlags hgflags)
 {
-    rpmfiBuildFNames(h, RPMTAG_ORIGBASENAMES, 
+    rpmfiBuildFNames(h, RPMTAG_ORIGBASENAMES, 0,
 		     (const char ***) &(td->data), &(td->count));
     if (td->data) {
 	td->type = RPM_STRING_ARRAY_TYPE;
@@ -720,6 +750,7 @@ static const struct headerTagFunc_s rpmHeaderTagExtensions[] = {
     { RPMTAG_HEADERCOLOR,	headercolorTag },
     { RPMTAG_VERBOSE,		verboseTag },
     { RPMTAG_EPOCHNUM,		epochnumTag },
+    { RPMTAG_INSTFILENAMES,	instfilenamesTag },
     { 0, 			NULL }
 };
 
diff --git a/lib/tagname.c b/lib/tagname.c
index abcae1c0c..0c2696803 100644
--- a/lib/tagname.c
+++ b/lib/tagname.c
@@ -129,9 +129,6 @@ static const char * _tagName(rpmTagVal tag)
     case RPMDBI_PACKAGES:
 	name = "Packages";
 	break;
-    case RPMDBI_INSTFILENAMES:
-	name = "Instfilenames";
-	break;
     /* XXX make sure rpmdb indices are identically named. */
     case RPMTAG_CONFLICTS:
 	name = "Conflictname";
@@ -212,8 +209,6 @@ static rpmTagVal _tagValue(const char * tagstr)
 
     if (!rstrcasecmp(tagstr, "Packages"))
 	return RPMDBI_PACKAGES;
-    if (!rstrcasecmp(tagstr, "Instfilenames"))
-	return RPMDBI_INSTFILENAMES;
 
     if (_rpmTags.byName == NULL)
 	tagLoadIndex(&_rpmTags.byName, &_rpmTags.byNameSize, tagCmpName);