Merge branch 'epoch-work'

31 files changed, 318 insertions, 178 deletions

diff --git a/contrib/bacman.in b/contrib/bacman.in
index b4e3b4ba..bd545180 100755
--- a/contrib/bacman.in
+++ b/contrib/bacman.in
@@ -220,12 +220,6 @@ while read i; do
         %REPLACES%)
             echo "replaces = $i"    >> .PKGINFO
         ;;
-        %EPOCH%)
-            echo "epoch = $i" >> .PKGINFO
-        ;;
-        %FORCE%)
-            echo "force = true" >> .PKGINFO
-        ;;
 
         # files
         %BACKUP%)
diff --git a/doc/.gitignore b/doc/.gitignore
index f047aaa9..a6f4df7f 100644
--- a/doc/.gitignore
+++ b/doc/.gitignore
@@ -6,6 +6,7 @@ pacman.8
 pacman.conf.5
 repo-add.8
 repo-remove.8
+vercmp.8
 *.css
 *.html
 *.xml
diff --git a/doc/Makefile.am b/doc/Makefile.am
index 37dab13f..00a0e88d 100644
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -7,6 +7,7 @@ ASCIIDOC_MANS = \
 	pacman.8 \
 	makepkg.8 \
 	repo-add.8 \
+	vercmp.8 \
 	PKGBUILD.5 \
 	makepkg.conf.5 \
 	pacman.conf.5 \
@@ -18,6 +19,7 @@ HTML_MANPAGES = \
 	pacman.8.html \
 	makepkg.8.html \
 	repo-add.8.html \
+	vercmp.8.html \
 	PKGBUILD.5.html \
 	makepkg.conf.5.html \
 	pacman.conf.5.html \
@@ -38,6 +40,7 @@ EXTRA_DIST = \
 	pacman.8.txt \
 	makepkg.8.txt \
 	repo-add.8.txt \
+	vercmp.8.txt \
 	PKGBUILD.5.txt \
 	PKGBUILD-example.txt \
 	makepkg.conf.5.txt \
@@ -129,6 +132,7 @@ $(HTML_OTHER): asciidoc.conf
 pacman.8 pacman.8.html: pacman.8.txt
 makepkg.8 makepkg.8.html: makepkg.8.txt
 repo-add.8 repo-add.8.html: repo-add.8.txt
+vercmp.8 vercmp.8.html: vercmp.8.txt
 PKGBUILD.5 PKGBUILD.5.html: PKGBUILD.5.txt PKGBUILD-example.txt
 makepkg.conf.5 makepkg.conf.5.html: makepkg.conf.5.txt
 pacman.conf.5 pacman.conf.5.html: pacman.conf.5.txt
diff --git a/doc/PKGBUILD.5.txt b/doc/PKGBUILD.5.txt
index e6c4a1fb..c0fa5948 100644
--- a/doc/PKGBUILD.5.txt
+++ b/doc/PKGBUILD.5.txt
@@ -45,7 +45,7 @@ similar to `$_basekernver`.
 
 *pkgver*::
 	The version of the software as released from the author (e.g. '2.7.1').
-	The variable is not allowed to contain hyphens.
+	The variable is not allowed to contain colons or hyphens.
 
 *pkgrel*::
 	This is the release number specific to the Arch Linux release. This
diff --git a/doc/footer.txt b/doc/footer.txt
index 8290f3c4..2ffb0092 100644
--- a/doc/footer.txt
+++ b/doc/footer.txt
@@ -18,13 +18,14 @@ Authors
 
 Current maintainers:
 
+* Allan McRae <allan@archlinux.org>
 * Dan McGee <dan@archlinux.org>
 * Xavier Chantry <shiningxc@gmail.com>
-* Aaron Griffin <aaron@archlinux.org>
 
 Past contributors:
 
 * Judd Vinet <jvinet@zeroflux.org>
 * Aurelien Foret <aurelien@archlinux.org>
+* Aaron Griffin <aaron@archlinux.org>
 
 See the 'AUTHORS' file for additional contributors.
diff --git a/doc/index.txt b/doc/index.txt
index ef328415..afb2719d 100644
--- a/doc/index.txt
+++ b/doc/index.txt
@@ -43,6 +43,7 @@ configuration files dealing with pacman.
 * linkman:pacman[8]
 * linkman:pacman.conf[5]
 * linkman:repo-add[8]
+* linkman:vercmp[8]
 
 Changelog
 ~~~~~~~~~
diff --git a/doc/pacman.8.txt b/doc/pacman.8.txt
index 2b47a88c..8f91e408 100644
--- a/doc/pacman.8.txt
+++ b/doc/pacman.8.txt
@@ -80,8 +80,10 @@ to determine which packages need upgrading. This behavior operates as follows:
   Numeric:
     1 < 1.0 < 1.1 < 1.1.1 < 1.2 < 2.0 < 3.0.0
 +
-Additionally, packages can have an 'epoch' value defined that will override any
-version comparison and force an upgrade.
+Additionally, version strings can have an 'epoch' value defined that will
+overrule any version comparison (unless the epoch values are equal). This is
+specified in an `epoch:version-rel` format. For example, `2:1.0-1` is always
+greater than `1:3.6-1`.
 
 *-T, \--deptest*::
 	Check dependencies; this is useful in scripts such as makepkg to check
diff --git a/doc/vercmp.8.txt b/doc/vercmp.8.txt
new file mode 100644
index 00000000..f2fc5305
--- /dev/null
+++ b/doc/vercmp.8.txt
@@ -0,0 +1,71 @@
+/////
+vim:set ts=4 sw=4 syntax=asciidoc noet:
+/////
+vercmp(8)
+=========
+
+Name
+----
+vercmp - version comparsion utility
+
+
+Synopsis
+--------
+'vercmp' <version1> <version2>
+
+
+Description
+-----------
+'vercmp' is used to determine the relationship between two given version
+numbers. It outputs values as follows:
+
+*  < 0 : if ver1 < ver2
+*  = 0 : if ver1 == ver2
+*  > 0 : if ver1 > ver2
+
+Version comparsion operates as follows:
+
+  Alphanumeric:
+    1.0a < 1.0alpha < 1.0b < 1.0beta < 1.0p < 1.0pre < 1.0rc < 1.0
+  Numeric:
+    1 < 1.0 < 1.1 < 1.1.1 < 1.2 < 2.0 < 3.0.0
+
+Additionally, version strings can have an 'epoch' value defined that will
+overrule any version comparison (unless the epoch values are equal). This is
+specified in an `epoch:version-rel` format. For example, `2:1.0-1` is always
+greater than `1:3.6-1`.
+
+
+Options
+-------
+*-h, \--help*::
+	Display syntax for the given operation. If no operation was supplied
+	then the general syntax is shown.
+
+Examples
+--------
+
+  $ vercmp 1 2
+  -1
+
+  $ vercmp 2 1
+  1
+
+  $ vercmp 2.0-1 1.7-6
+  1
+
+  $ vercmp 2.0 2.0-13
+  0
+
+  $ vercmp 4.34 1:001
+  -1
+
+Configuration
+-------------
+There is none.
+
+See Also
+--------
+linkman:pacman[8], linkman:makepkg[8], linkman:libalpm[3]
+
+include::footer.txt[]
diff --git a/lib/libalpm/alpm.h b/lib/libalpm/alpm.h
index 7c4cd48b..a540bc4f 100644
--- a/lib/libalpm/alpm.h
+++ b/lib/libalpm/alpm.h
@@ -238,7 +238,6 @@ size_t alpm_pkg_changelog_read(void *ptr, size_t size,
 /*int alpm_pkg_changelog_feof(const pmpkg_t *pkg, void *fp);*/
 int alpm_pkg_changelog_close(const pmpkg_t *pkg, void *fp);
 int alpm_pkg_has_scriptlet(pmpkg_t *pkg);
-int alpm_pkg_get_epoch(pmpkg_t *pkg);
 
 off_t alpm_pkg_download_size(pmpkg_t *newpkg);
 alpm_list_t *alpm_pkg_unused_deltas(pmpkg_t *pkg);
diff --git a/lib/libalpm/be_local.c b/lib/libalpm/be_local.c
index 5471fee4..ea59ceca 100644
--- a/lib/libalpm/be_local.c
+++ b/lib/libalpm/be_local.c
@@ -156,12 +156,6 @@ static alpm_list_t *_cache_get_groups(pmpkg_t *pkg)
 	return pkg->groups;
 }
 
-static int _cache_get_epoch(pmpkg_t *pkg)
-{
-	LAZY_LOAD(INFRQ_DESC, -1);
-	return pkg->epoch;
-}
-
 static int _cache_has_scriptlet(pmpkg_t *pkg)
 {
 	ALPM_LOG_FUNC;
@@ -318,7 +312,6 @@ static struct pkg_operations local_pkg_ops = {
 	.get_size        = _cache_get_size,
 	.get_isize       = _cache_get_isize,
 	.get_reason      = _cache_get_reason,
-	.get_epoch       = _cache_get_epoch,
 	.has_scriptlet   = _cache_has_scriptlet,
 	.get_licenses    = _cache_get_licenses,
 	.get_groups      = _cache_get_groups,
@@ -606,11 +599,6 @@ int _alpm_local_db_read(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq)
 					STRDUP(linedup, _alpm_strtrim(line), goto error);
 					info->replaces = alpm_list_add(info->replaces, linedup);
 				}
-			} else if(strcmp(line, "%EPOCH%") == 0) {
-				if(fgets(line, sizeof(line), fp) == NULL) {
-					goto error;
-				}
-				info->epoch = atoi(_alpm_strtrim(line));
 			} else if(strcmp(line, "%DEPENDS%") == 0) {
 				while(fgets(line, sizeof(line), fp) && strlen(_alpm_strtrim(line))) {
 					pmdepend_t *dep = _alpm_splitdep(_alpm_strtrim(line));
@@ -767,10 +755,6 @@ int _alpm_local_db_write(pmdb_t *db, pmpkg_t *info, pmdbinfrq_t inforeq)
 			}
 			fprintf(fp, "\n");
 		}
-		if(info->epoch) {
-			fprintf(fp, "%%EPOCH%%\n"
-							"%d\n\n", info->epoch);
-		}
 		if(info->url) {
 			fprintf(fp, "%%URL%%\n"
 							"%s\n\n", info->url);
diff --git a/lib/libalpm/be_package.c b/lib/libalpm/be_package.c
index b69161b4..c272bd47 100644
--- a/lib/libalpm/be_package.c
+++ b/lib/libalpm/be_package.c
@@ -184,13 +184,6 @@ static int parse_descfile(struct archive *a, pmpkg_t *newpkg)
 				STRDUP(newpkg->version, ptr, RET_ERR(PM_ERR_MEMORY, -1));
 			} else if(strcmp(key, "pkgdesc") == 0) {
 				STRDUP(newpkg->desc, ptr, RET_ERR(PM_ERR_MEMORY, -1));
-			} else if(strcmp(key, "force") == 0) {
-				/* For backward compatibility, like in sync_db_read */
-				if(!newpkg->epoch) {
-					newpkg->epoch = 1;
-				}
-			} else if(strcmp(key, "epoch") == 0) {
-				newpkg->epoch = atoi(ptr);
 			} else if(strcmp(key, "group") == 0) {
 				newpkg->groups = alpm_list_add(newpkg->groups, strdup(ptr));
 			} else if(strcmp(key, "url") == 0) {
diff --git a/lib/libalpm/be_sync.c b/lib/libalpm/be_sync.c
index 1e4b2fde..4676e8a6 100644
--- a/lib/libalpm/be_sync.c
+++ b/lib/libalpm/be_sync.c
@@ -340,15 +340,6 @@ static int sync_db_read(pmdb_t *db, struct archive *archive,
 				READ_AND_STORE(pkg->md5sum);
 			} else if(strcmp(line, "%REPLACES%") == 0) {
 				READ_AND_STORE_ALL(pkg->replaces);
-			} else if(strcmp(line, "%EPOCH%") == 0) {
-				READ_NEXT(line);
-				pkg->epoch = atoi(line);
-			} else if(strcmp(line, "%FORCE%") == 0) {
-				/* For backward compatibility, treat force as a non-zero epoch
-				 * but only if we didn't already have a known epoch value. */
-				if(!pkg->epoch) {
-					pkg->epoch = 1;
-				}
 			} else if(strcmp(line, "%DEPENDS%") == 0) {
 				/* Different than the rest because of the _alpm_splitdep call. */
 				while(1) {
diff --git a/lib/libalpm/package.c b/lib/libalpm/package.c
index 241c41c0..d4b3b9c0 100644
--- a/lib/libalpm/package.c
+++ b/lib/libalpm/package.c
@@ -110,7 +110,6 @@ static const char *_pkg_get_arch(pmpkg_t *pkg)        { return pkg->arch; }
 static off_t _pkg_get_size(pmpkg_t *pkg)              { return pkg->size; }
 static off_t _pkg_get_isize(pmpkg_t *pkg)             { return pkg->isize; }
 static pmpkgreason_t _pkg_get_reason(pmpkg_t *pkg)    { return pkg->reason; }
-static int _pkg_get_epoch(pmpkg_t *pkg)               { return pkg->epoch; }
 static int _pkg_has_scriptlet(pmpkg_t *pkg)           { return pkg->scriptlet; }
 
 static alpm_list_t *_pkg_get_licenses(pmpkg_t *pkg)   { return pkg->licenses; }
@@ -141,7 +140,6 @@ struct pkg_operations default_pkg_ops = {
 	.get_size        = _pkg_get_size,
 	.get_isize       = _pkg_get_isize,
 	.get_reason      = _pkg_get_reason,
-	.get_epoch       = _pkg_get_epoch,
 	.has_scriptlet   = _pkg_has_scriptlet,
 	.get_licenses    = _pkg_get_licenses,
 	.get_groups      = _pkg_get_groups,
@@ -223,11 +221,6 @@ pmpkgreason_t SYMEXPORT alpm_pkg_get_reason(pmpkg_t *pkg)
 	return pkg->ops->get_reason(pkg);
 }
 
-int SYMEXPORT alpm_pkg_get_epoch(pmpkg_t *pkg)
-{
-	return pkg->ops->get_epoch(pkg);
-}
-
 alpm_list_t SYMEXPORT *alpm_pkg_get_licenses(pmpkg_t *pkg)
 {
 	return pkg->ops->get_licenses(pkg);
@@ -427,7 +420,6 @@ pmpkg_t *_alpm_pkg_dup(pmpkg_t *pkg)
 	newpkg->size = pkg->size;
 	newpkg->isize = pkg->isize;
 	newpkg->scriptlet = pkg->scriptlet;
-	newpkg->epoch = pkg->epoch;
 	newpkg->reason = pkg->reason;
 
 	newpkg->licenses   = alpm_list_strdup(pkg->licenses);
@@ -518,20 +510,8 @@ void _alpm_pkg_free_trans(pmpkg_t *pkg)
 /* Is spkg an upgrade for localpkg? */
 int _alpm_pkg_compare_versions(pmpkg_t *spkg, pmpkg_t *localpkg)
 {
-	int spkg_epoch, localpkg_epoch;
-
 	ALPM_LOG_FUNC;
 
-	spkg_epoch = alpm_pkg_get_epoch(spkg);
-	localpkg_epoch = alpm_pkg_get_epoch(localpkg);
-
-	if(spkg_epoch > localpkg_epoch) {
-		return(1);
-	} else if(spkg_epoch < localpkg_epoch) {
-		return(-1);
-	}
-
-	/* equal epoch values, move on to version comparison */
 	return alpm_pkg_vercmp(alpm_pkg_get_version(spkg),
 			alpm_pkg_get_version(localpkg));
 }
diff --git a/lib/libalpm/package.h b/lib/libalpm/package.h
index 52582d9b..b161d5f1 100644
--- a/lib/libalpm/package.h
+++ b/lib/libalpm/package.h
@@ -57,7 +57,6 @@ struct pkg_operations {
 	off_t (*get_size) (pmpkg_t *);
 	off_t (*get_isize) (pmpkg_t *);
 	pmpkgreason_t (*get_reason) (pmpkg_t *);
-	int (*get_epoch) (pmpkg_t *);
 	int (*has_scriptlet) (pmpkg_t *);
 
 	alpm_list_t *(*get_licenses) (pmpkg_t *);
@@ -107,7 +106,6 @@ struct __pmpkg_t {
 	off_t download_size;
 
 	int scriptlet;
-	int epoch;
 
 	pmpkgreason_t reason;
 	pmpkgfrom_t origin;
diff --git a/lib/libalpm/version.c b/lib/libalpm/version.c
index 85cc2f57..eba66210 100644
--- a/lib/libalpm/version.c
+++ b/lib/libalpm/version.c
@@ -23,23 +23,66 @@
 /* libalpm */
 #include "util.h"
 
-/** Compare two version strings and determine which one is 'newer'.
- * Returns a value comparable to the way strcmp works. Returns 1
- * if a is newer than b, 0 if a and b are the same version, or -1
- * if b is newer than a.
- *
- * This function has been adopted from the rpmvercmp function located
- * at lib/rpmvercmp.c, and was most recently updated against rpm
- * version 4.4.2.3. Small modifications have been made to make it more
- * consistent with the libalpm coding style.
- *
- * Keep in mind that the pkgrel is only compared if it is available
- * on both versions handed to this function. For example, comparing
- * 1.5-1 and 1.5 will yield 0; comparing 1.5-1 and 1.5-2 will yield
- * -1 as expected. This is mainly for supporting versioned dependencies
- * that do not include the pkgrel.
+/**
+ * Some functions in this file have been adopted from the rpm source, notably
+ * 'rpmvercmp' located at lib/rpmvercmp.c and 'parseEVR' located at
+ * lib/rpmds.c. It was most recently updated against rpm version 4.8.1. Small
+ * modifications have been made to make it more consistent with the libalpm
+ * coding style.
  */
-int SYMEXPORT alpm_pkg_vercmp(const char *a, const char *b)
+
+/**
+ * Split EVR into epoch, version, and release components.
+ * @param evr		[epoch:]version[-release] string
+ * @retval *ep		pointer to epoch
+ * @retval *vp		pointer to version
+ * @retval *rp		pointer to release
+ */
+static void parseEVR(char *evr, const char **ep, const char **vp,
+		const char **rp)
+{
+	const char *epoch;
+	const char *version;
+	const char *release;
+	char *s, *se;
+
+	s = evr;
+	/* s points to epoch terminator */
+	while (*s && isdigit(*s)) s++;
+	/* se points to version terminator */
+	se = strrchr(s, '-');
+
+	if(*s == ':') {
+		epoch = evr;
+		*s++ = '\0';
+		version = s;
+		if(*epoch == '\0') {
+			epoch = "0";
+		}
+	} else {
+		/* different from RPM- always assume 0 epoch */
+		epoch = "0";
+		version = evr;
+	}
+	if(se) {
+		*se++ = '\0';
+		release = se;
+	} else {
+		release = NULL;
+	}
+
+	if(ep) *ep = epoch;
+	if(vp) *vp = version;
+	if(rp) *rp = release;
+}
+
+/**
+ * Compare alpha and numeric segments of two versions.
+ * return 1: a is newer than b
+ *        0: a and b are the same version
+ *       -1: b is newer than a
+ */
+static int rpmvercmp(const char *a, const char *b)
 {
 	char oldch1, oldch2;
 	char *str1, *str2;
@@ -49,13 +92,6 @@ int SYMEXPORT alpm_pkg_vercmp(const char *a, const char *b)
 	int isnum;
 	int ret = 0;
 
-	/* libalpm added code. ensure our strings are not null */
-	if(!a) {
-		if(!b) return(0);
-		return(-1);
-	}
-	if(!b) return(1);
-
 	/* easy comparison to see if versions are identical */
 	if(strcmp(a, b) == 0) return(0);
 
@@ -147,22 +183,6 @@ int SYMEXPORT alpm_pkg_vercmp(const char *a, const char *b)
 		one = ptr1;
 		*ptr2 = oldch2;
 		two = ptr2;
-
-		/* libalpm added code. check if version strings have hit the pkgrel
-		 * portion. depending on which strings have hit, take correct action.
-		 * this is all based on the premise that we only have one dash in
-		 * the version string, and it separates pkgver from pkgrel. */
-		if(*ptr1 == '-' && *ptr2 == '-') {
-			/* no-op, continue comparing since we are equivalent throughout */
-		} else if(*ptr1 == '-') {
-			/* ptr1 has hit the pkgrel and ptr2 has not. continue version
-			 * comparison after stripping the pkgrel from ptr1. */
-			*ptr1 = '\0';
-		} else if(*ptr2 == '-') {
-			/* ptr2 has hit the pkgrel and ptr1 has not. continue version
-			 * comparison after stripping the pkgrel from ptr2. */
-			*ptr2 = '\0';
-		}
 	}
 
 	/* this catches the case where all numeric and alpha segments have */
@@ -179,7 +199,7 @@ int SYMEXPORT alpm_pkg_vercmp(const char *a, const char *b)
 	 * - if one is an alpha, two is newer.
 	 * - otherwise one is newer.
 	 * */
-	if ( ( !*one && !isalpha((int)*two) )
+	if ( (!*one && !isalpha((int)*two))
 			|| isalpha((int)*one) ) {
 		ret = -1;
 	} else {
@@ -192,4 +212,61 @@ cleanup:
 	return(ret);
 }
 
+/** Compare two version strings and determine which one is 'newer'.
+ * Returns a value comparable to the way strcmp works. Returns 1
+ * if a is newer than b, 0 if a and b are the same version, or -1
+ * if b is newer than a.
+ *
+ * Different epoch values for version strings will override any further
+ * comparison. If no epoch is provided, 0 is assumed.
+ *
+ * Keep in mind that the pkgrel is only compared if it is available
+ * on both versions handed to this function. For example, comparing
+ * 1.5-1 and 1.5 will yield 0; comparing 1.5-1 and 1.5-2 will yield
+ * -1 as expected. This is mainly for supporting versioned dependencies
+ * that do not include the pkgrel.
+ */
+int SYMEXPORT alpm_pkg_vercmp(const char *a, const char *b)
+{
+	char *full1, *full2;
+	const char *epoch1, *ver1, *rel1;
+	const char *epoch2, *ver2, *rel2;
+	int ret;
+
+	/* ensure our strings are not null */
+	if(!a && !b) {
+		return(0);
+	} else if(!a) {
+		return(-1);
+	} else if(!b) {
+		return(1);
+	}
+	/* another quick shortcut- if full version specs are equal */
+	if(strcmp(a, b) == 0) {
+		return(0);
+	}
+
+	/* Parse both versions into [epoch:]version[-release] triplets. We probably
+	 * don't need epoch and release to support all the same magic, but it is
+	 * easier to just run it all through the same code. */
+	full1 = strdup(a);
+	full2 = strdup(b);
+
+	/* parseEVR modifies passed in version, so have to dupe it first */
+	parseEVR(full1, &epoch1, &ver1, &rel1);
+	parseEVR(full2, &epoch2, &ver2, &rel2);
+
+	ret = rpmvercmp(epoch1, epoch2);
+	if(ret == 0) {
+		ret = rpmvercmp(ver1, ver2);
+		if(ret == 0 && rel1 && rel2) {
+			ret = rpmvercmp(rel1, rel2);
+		}
+	}
+
+	free(full1);
+	free(full2);
+	return(ret);
+}
+
 /* vim: set ts=2 sw=2 noet: */
diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index a2d9c837..b1b1b75a 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -142,18 +142,20 @@ clean_up() {
 		msg "$(gettext "Cleaning up...")"
 		rm -rf "$pkgdir" "$srcdir"
 		if [[ -n $pkgbase ]]; then
+			# TODO: this wasn't properly fixed in commit 2020e629
+			local fullver=$(get_full_version $epoch $pkgver $pkgrel)
 			# Can't do this unless the BUILDSCRIPT has been sourced.
 			if (( BUILDFUNC )); then
-				rm -f "${pkgbase}-${pkgver}-${pkgrel}-${CARCH}-build.log"*
+				rm -f "${pkgbase}-${fullver}-${CARCH}-build.log"*
 			fi
 			if (( CHECKFUNC )); then
-				rm -f "${pkgbase}-${pkgver}-${pkgrel}-${CARCH}-check.log"*
+				rm -f "${pkgbase}-${fullver}-${CARCH}-check.log"*
 			fi
 			if (( PKGFUNC )); then
-				rm -f "${pkgbase}-${pkgver}-${pkgrel}-${CARCH}-package.log"*
+				rm -f "${pkgbase}-${fullver}-${CARCH}-package.log"*
 			elif (( SPLITPKG )); then
 				for pkg in ${pkgname[@]}; do
-					rm -f "${pkgbase}-${pkgver}-${pkgrel}-${CARCH}-package_${pkg}.log"*
+					rm -f "${pkgbase}-${fullver}-${CARCH}-package_${pkg}.log"*
 				done
 			fi
 
@@ -225,6 +227,19 @@ get_url() {
 }
 
 ##
+#  usage : get_full_version( $epoch, $pkgver, $pkgrel )
+# return : full version spec, including epoch (if necessary), pkgver, pkgrel
+##
+get_full_version() {
+	if [[ $1 -eq 0 ]]; then
+		# zero epoch case, don't include it in version
+		echo $2-$3
+	else
+		echo $1:$2-$3
+	fi
+}
+
+##
 # Checks to see if options are present in makepkg.conf or PKGBUILD;
 # PKGBUILD options always take precedence.
 #
@@ -762,7 +777,8 @@ run_function() {
 	local ret=0
 	local restoretrap
 	if (( LOGGING )); then
-		local BUILDLOG="${startdir}/${pkgbase}-${pkgver}-${pkgrel}-${CARCH}-$pkgfunc.log"
+		local fullver=$(get_full_version $epoch $pkgver $pkgrel)
+		local BUILDLOG="${startdir}/${pkgbase}-${fullver}-${CARCH}-$pkgfunc.log"
 		if [[ -f $BUILDLOG ]]; then
 			local i=1
 			while true; do
@@ -935,9 +951,8 @@ write_pkginfo() {
 	echo "# $(LC_ALL=C date -u)"
 	echo "pkgname = $1"
 	(( SPLITPKG )) && echo pkgbase = $pkgbase
-	echo "pkgver = $pkgver-$pkgrel"
+	echo "pkgver = $(get_full_version $epoch $pkgver $pkgrel)"
 	echo "pkgdesc = $pkgdesc"
-	[[ $epoch ]] && echo "epoch = $epoch"
 	echo "url = $url"
 	echo "builddate = $builddate"
 	echo "packager = $packager"
@@ -1049,7 +1064,8 @@ create_package() {
 		"$PKGEXT" ; EXT=$PKGEXT ;;
 	esac
 
-	local pkg_file="$PKGDEST/${nameofpkg}-${pkgver}-${pkgrel}-${PKGARCH}${PKGEXT}"
+	local fullver=$(get_full_version $epoch $pkgver $pkgrel)
+	local pkg_file="$PKGDEST/${nameofpkg}-${fullver}-${PKGARCH}${PKGEXT}"
 	local ret=0
 
 	# when fileglobbing, we want * in an empty directory to expand to
@@ -1144,7 +1160,8 @@ create_srcpackage() {
 		"$SRCEXT" ;;
 	esac
 
-	local pkg_file="$SRCPKGDEST/${pkgbase}-${pkgver}-${pkgrel}${SRCEXT}"
+	local fullver=$(get_full_version $epoch $pkgver $pkgrel)
+	local pkg_file="$SRCPKGDEST/${pkgbase}-${fullver}${SRCEXT}"
 
 	# tar it up
 	msg2 "$(gettext "Compressing source package...")"
@@ -1176,12 +1193,14 @@ install_package() {
 		msg "$(gettext "Installing %s package group with %s -U...")" "$pkgbase" "$PACMAN"
 	fi
 
-	local pkg pkglist
+	local fullver pkg pkglist
 	for pkg in ${pkgname[@]}; do
-		if [[ -f $PKGDEST/${pkg}-${pkgver}-${pkgrel}-${CARCH}${PKGEXT} ]]; then
-			pkglist+=" $PKGDEST/${pkg}-${pkgver}-${pkgrel}-${CARCH}${PKGEXT}"
+		# TODO: this wasn't properly fixed in commit 2020e629
+		fullver=$(get_full_version $epoch $pkgver $pkgrel)
+		if [[ -f $PKGDEST/${pkg}-${fullver}-${CARCH}${PKGEXT} ]]; then
+			pkglist+=" $PKGDEST/${pkg}-${fullver}-${CARCH}${PKGEXT}"
 		else
-			pkglist+=" $PKGDEST/${pkg}-${pkgver}-${pkgrel}-any${PKGEXT}"
+			pkglist+=" $PKGDEST/${pkg}-${fullver}-any${PKGEXT}"
 		fi
 	done
 
@@ -1803,7 +1822,7 @@ if (( ! ( ASROOT || INFAKEROOT ) && ( DEP_BIN || RMDEPS || INSTALL ) )); then
 	fi
 fi
 
-unset pkgname pkgbase pkgver pkgrel pkgdesc url license groups provides
+unset pkgname pkgbase pkgver pkgrel epoch pkgdesc url license groups provides
 unset md5sums replaces depends conflicts backup source install changelog build
 unset makedepends optdepends options noextract
 
@@ -1840,6 +1859,7 @@ if (( GENINTEG )); then
 fi
 
 pkgbase=${pkgbase:-${pkgname[0]}}
+epoch=${epoch:-0}
 
 # check the PKGBUILD for some basic requirements
 check_sanity || exit 1
@@ -1877,8 +1897,9 @@ if [[ -n "${PKGLIST[@]}" ]]; then
 fi
 
 if (( ! SPLITPKG )); then
-	if [[ -f $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-${CARCH}${PKGEXT} \
-	     || -f $PKGDEST/${pkgname}-${pkgver}-${pkgrel}-any${PKGEXT} ]] \
+	fullver=$(get_full_version $epoch $pkgver $pkgrel)
+	if [[ -f $PKGDEST/${pkgname}-${fullver}-${CARCH}${PKGEXT} \
+	     || -f $PKGDEST/${pkgname}-${fullver}-any${PKGEXT} ]] \
 			 && ! (( FORCE || SOURCEONLY || NOBUILD )); then
 		if (( INSTALL )); then
 			warning "$(gettext "A package has already been built, installing existing package...")"
@@ -1893,8 +1914,10 @@ else
 	allpkgbuilt=1
 	somepkgbuilt=0
 	for pkg in ${pkgname[@]}; do
-		if [[ -f $PKGDEST/${pkg}-${pkgver}-${pkgrel}-${CARCH}${PKGEXT} \
-		     || -f $PKGDEST/${pkg}-${pkgver}-${pkgrel}-any${PKGEXT} ]]; then
+		# TODO: this wasn't properly fixed in commit 2020e629
+		fullver=$(get_full_version $epoch $pkgver $pkgrel)
+		if [[ -f $PKGDEST/${pkg}-${fullver}-${CARCH}${PKGEXT} \
+		     || -f $PKGDEST/${pkg}-${fullver}-any${PKGEXT} ]]; then
 			somepkgbuilt=1
 		else
 			allpkgbuilt=0
@@ -1946,11 +1969,12 @@ if (( INFAKEROOT )); then
 	exit 0 # $E_OK
 fi
 
-msg "$(gettext "Making package: %s")" "$pkgbase $pkgver-$pkgrel ($(date))"
+fullver=$(get_full_version $epoch $pkgver $pkgrel)
+msg "$(gettext "Making package: %s")" "$pkgbase $fullver ($(date))"
 
 # if we are creating a source-only package, go no further
 if (( SOURCEONLY )); then
-	if [[ -f $SRCPKGDEST/${pkgbase}-${pkgver}-${pkgrel}${SRCEXT} ]] \
+	if [[ -f $SRCPKGDEST/${pkgbase}-${fullver}${SRCEXT} ]] \
 	     && (( ! FORCE )); then
 		error "$(gettext "A source package has already been built. (use -f to overwrite)")"
 		exit 1
@@ -2082,7 +2106,8 @@ else
 	fi
 fi
 
-msg "$(gettext "Finished making: %s")" "$pkgbase $pkgver-$pkgrel ($(date))"
+fullver=$(get_full_version $epoch $pkgver $pkgrel)
+msg "$(gettext "Finished making: %s")" "$pkgbase $fullver ($(date))"
 
 install_package
 
diff --git a/scripts/repo-add.sh.in b/scripts/repo-add.sh.in
index c3db7d9f..9b79022a 100644
--- a/scripts/repo-add.sh.in
+++ b/scripts/repo-add.sh.in
@@ -190,7 +190,7 @@ db_write_entry()
 {
 	# blank out all variables
 	local pkgfile="$1"
-	local pkgname pkgver pkgdesc epoch csize size md5sum url arch builddate packager force \
+	local pkgname pkgver pkgdesc csize size md5sum url arch builddate packager \
 		_groups _licenses _replaces _depends _conflicts _provides _optdepends
 
 	local OLDIFS="$IFS"
@@ -274,12 +274,6 @@ db_write_entry()
 	[[ -n $builddate ]] && echo -e "%BUILDDATE%\n$builddate\n" >>desc
 	[[ -n $packager ]] && echo -e "%PACKAGER%\n$packager\n" >>desc
 	write_list_entry "REPLACES" "$_replaces" "desc"
-	# remain backward-compatible for now; put a force entry in the database
-	if [[ -n $epoch ]]; then
-		echo -e "%EPOCH%\n#epoch\n" >>desc
-		echo -e "%FORCE%\n" >>desc
-	fi
-	[[ -n $force ]] && echo -e "%FORCE%\n" >>desc
 
 	# create depends entry
 	msg2 "$(gettext "Creating 'depends' db entry...")"
diff --git a/src/util/vercmp.c b/src/util/vercmp.c
index a1da23cd..adb5a42a 100644
--- a/src/util/vercmp.c
+++ b/src/util/vercmp.c
@@ -24,8 +24,8 @@
 
 #define BASENAME "vercmp"
 
-/* forward declaration, comes from vercmp.o in libalpm source that is linked in
- * directly so we don't have any library deps */
+/* forward declaration, comes from version.o in libalpm source that is linked
+ * in directly so we don't have any library deps */
 int alpm_pkg_vercmp(const char *a, const char *b);
 
 static void usage(void)
diff --git a/test/pacman/pmdb.py b/test/pacman/pmdb.py
index b4d0e2d5..6329f23d 100755
--- a/test/pacman/pmdb.py
+++ b/test/pacman/pmdb.py
@@ -156,11 +156,6 @@ class pmdb:
                 pkg.md5sum = fd.readline().strip("\n")
             elif line == "%REPLACES%":
                 pkg.replaces = _getsection(fd)
-            elif line == "%EPOCH%":
-                pkg.epoch = int(fd.readline().strip("\n"))
-            elif line == "%FORCE%":
-                fd.readline()
-                pkg.force = True
             elif line == "%DEPENDS%":
                 pkg.depends = _getsection(fd)
             elif line == "%OPTDEPENDS%":
@@ -250,19 +245,10 @@ class pmdb:
                 data.append(_mksection("SIZE", pkg.size))
             if pkg.reason:
                 data.append(_mksection("REASON", pkg.reason))
-            if pkg.epoch:
-                data.append(_mksection("EPOCH", pkg.epoch))
         else:
             data.append(_mksection("FILENAME", pkg.filename()))
             if pkg.replaces:
                 data.append(_mksection("REPLACES", pkg.replaces))
-            if pkg.epoch:
-                data.append(_mksection("EPOCH", pkg.epoch))
-                # for backward compatibility
-                if not pkg.force:
-                    data.append(_mksection("FORCE", ""))
-            if pkg.force:
-                data.append(_mksection("FORCE", ""))
             if pkg.csize:
                 data.append(_mksection("CSIZE", pkg.csize))
             if pkg.md5sum:
diff --git a/test/pacman/pmpkg.py b/test/pacman/pmpkg.py
index 3aabea49..988f4c28 100755
--- a/test/pacman/pmpkg.py
+++ b/test/pacman/pmpkg.py
@@ -49,8 +49,6 @@ class pmpkg:
         self.reason = 0
         self.md5sum = ""      # sync only
         self.replaces = []
-        self.force = False
-        self.epoch = 0
         self.depends = []
         self.optdepends = []
         self.conflicts = []
@@ -132,10 +130,6 @@ class pmpkg:
         data.append("builddate = %s" % self.builddate)
         data.append("packager = %s" % self.packager)
         data.append("size = %s" % self.size)
-        if self.force:
-            data.append("force = true")
-        if self.epoch:
-            data.append("epoch = %d" % self.epoch)
         if self.arch:
             data.append("arch = %s" % self.arch)
         for i in self.license:
diff --git a/test/pacman/pmrule.py b/test/pacman/pmrule.py
index bea8e4a4..89ae3f49 100755
--- a/test/pacman/pmrule.py
+++ b/test/pacman/pmrule.py
@@ -78,9 +78,6 @@ class pmrule:
                 elif case == "VERSION":
                     if value != newpkg.version:
                         success = 0
-                elif case == "EPOCH":
-                    if int(value) != newpkg.epoch:
-                        success = 0
                 elif case == "DESC":
                     if value != newpkg.desc:
                         success = 0
diff --git a/test/pacman/tests/sync140.py b/test/pacman/tests/epoch001.py
index b7ec9fcf..ac6c41a6 100644
--- a/test/pacman/tests/sync140.py
+++ b/test/pacman/tests/epoch001.py
@@ -1,7 +1,6 @@
 self.description = "Sysupgrade with a sync package having higher epoch"
 
-sp = pmpkg("dummy", "1.0-1")
-sp.epoch = 1
+sp = pmpkg("dummy", "1:1.0-1")
 self.addpkg2db("sync", sp)
 
 lp = pmpkg("dummy", "1.1-1")
@@ -10,4 +9,4 @@ self.addpkg2db("local", lp)
 self.args = "-Su"
 
 self.addrule("PACMAN_RETCODE=0")
-self.addrule("PKG_VERSION=dummy|1.0-1")
+self.addrule("PKG_VERSION=dummy|1:1.0-1")
diff --git a/test/pacman/tests/sync141.py b/test/pacman/tests/epoch002.py
index dac81f76..8ca4afc6 100644
--- a/test/pacman/tests/sync141.py
+++ b/test/pacman/tests/epoch002.py
@@ -3,8 +3,7 @@ self.description = "Sysupgrade with an epoch and ignore on same package"
 lp = pmpkg("dummy", "1.0-1")
 self.addpkg2db("local", lp)
 
-sp = pmpkg("dummy", "1.0-2")
-sp.epoch = 1
+sp = pmpkg("dummy", "1:1.0-2")
 self.addpkg2db("sync", sp)
 
 self.args = "-Su --ignore %s" % lp.name
diff --git a/test/pacman/tests/sync142.py b/test/pacman/tests/epoch003.py
index 726ef304..ac395e30 100644
--- a/test/pacman/tests/sync142.py
+++ b/test/pacman/tests/epoch003.py
@@ -1,14 +1,12 @@
 self.description = "Sysupgrade with an epoch package overriding a force package"
 
-sp = pmpkg("dummy", "1.4-1")
-sp.epoch = 2
+sp = pmpkg("dummy", "2:1.4-1")
 self.addpkg2db("sync", sp)
 
-lp = pmpkg("dummy", "2.0-1")
-lp.force = True
+lp = pmpkg("dummy", "1:2.0-1")
 self.addpkg2db("local", lp)
 
 self.args = "-Su"
 
 self.addrule("PACMAN_RETCODE=0")
-self.addrule("PKG_VERSION=dummy|1.4-1")
+self.addrule("PKG_VERSION=dummy|2:1.4-1")
diff --git a/test/pacman/tests/sync143.py b/test/pacman/tests/epoch004.py
index 2ee940a9..74b00c2b 100644
--- a/test/pacman/tests/sync143.py
+++ b/test/pacman/tests/epoch004.py
@@ -1,18 +1,16 @@
 self.description = "Sysupgrade with same version, different epochs"
 
-sp = pmpkg("dummy", "2.0-1")
+sp = pmpkg("dummy", "2:2.0-1")
 sp.files = ["bin/dummynew"]
-sp.epoch = 2
 self.addpkg2db("sync", sp)
 
-lp = pmpkg("dummy", "2.0-1")
+lp = pmpkg("dummy", "1:2.0-1")
 lp.files = ["bin/dummyold"]
-lp.force = True
 self.addpkg2db("local", lp)
 
 self.args = "-Su"
 
 self.addrule("PACMAN_RETCODE=0")
-self.addrule("PKG_VERSION=dummy|2.0-1")
+self.addrule("PKG_VERSION=dummy|2:2.0-1")
 self.addrule("FILE_EXIST=bin/dummynew")
 self.addrule("!FILE_EXIST=bin/dummyold")
diff --git a/test/pacman/tests/epoch010.py b/test/pacman/tests/epoch010.py
new file mode 100644
index 00000000..03bba273
--- /dev/null
+++ b/test/pacman/tests/epoch010.py
@@ -0,0 +1,12 @@
+self.description = "usbutils case study: force in new package"
+
+sp = pmpkg("usbutils", "1:001-1")
+self.addpkg2db("sync", sp)
+
+lp = pmpkg("usbutils", "0.91-4")
+self.addpkg2db("local", lp)
+
+self.args = "-Su"
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_VERSION=usbutils|1:001-1")
diff --git a/test/pacman/tests/epoch011.py b/test/pacman/tests/epoch011.py
new file mode 100644
index 00000000..bc5ee619
--- /dev/null
+++ b/test/pacman/tests/epoch011.py
@@ -0,0 +1,12 @@
+self.description = "usbutils case study: force stays, epoch now in local db"
+
+sp = pmpkg("usbutils", "1:002-1")
+self.addpkg2db("sync", sp)
+
+lp = pmpkg("usbutils", "1:001-1")
+self.addpkg2db("local", lp)
+
+self.args = "-Su"
+
+self.addrule("PACMAN_RETCODE=0")
+self.addrule("PKG_VERSION=usbutils|1:002-1")
diff --git a/test/pacman/tests/epoch012.py b/test/pacman/tests/epoch012.py
new file mode 100644
index 00000000..2a7a7ac2
--- /dev/null
+++ b/test/pacman/tests/epoch012.py
@@ -0,0 +1,13 @@
+self.description = "usbutils case study: maintainer screws up and removes force"
+
+sp = pmpkg("usbutils", "003-1")
+self.addpkg2db("sync", sp)
+
+lp = pmpkg("usbutils", "1:002-1")
+self.addpkg2db("local", lp)
+
+self.args = "-Su"
+
+self.addrule("PACMAN_RETCODE=0")
+# remember, this is how we have to handle this- 003 will not be installed
+self.addrule("PKG_VERSION=usbutils|1:002-1")
diff --git a/test/pacman/tests/sync136.py b/test/pacman/tests/sync136.py
index b3a6baf4..b31aae2c 100644
--- a/test/pacman/tests/sync136.py
+++ b/test/pacman/tests/sync136.py
@@ -1,7 +1,6 @@
 self.description = "Sysupgrade with a sync package forcing a downgrade"
 
-sp = pmpkg("dummy", "1.0-1")
-sp.force = True
+sp = pmpkg("dummy", "1:1.0-1")
 
 self.addpkg2db("sync", sp)
 
@@ -12,4 +11,4 @@ self.addpkg2db("local", lp)
 self.args = "-Su"
 
 self.addrule("PACMAN_RETCODE=0")
-self.addrule("PKG_VERSION=dummy|1.0-1")
+self.addrule("PKG_VERSION=dummy|1:1.0-1")
diff --git a/test/pacman/tests/sync137.py b/test/pacman/tests/sync137.py
index 000855c5..d76ac49d 100644
--- a/test/pacman/tests/sync137.py
+++ b/test/pacman/tests/sync137.py
@@ -4,8 +4,7 @@ lp = pmpkg("dummy", "1.0-1")
 
 self.addpkg2db("local", lp)
 
-sp = pmpkg("dummy", "1.0-2")
-sp.force = True
+sp = pmpkg("dummy", "1:1.0-2")
 self.addpkg2db("sync", sp)
 
 self.args = "-Su --ignore %s" % lp.name
diff --git a/test/util/vercmptest.sh b/test/util/vercmptest.sh
index fca06578..a9ed3b2a 100755
--- a/test/util/vercmptest.sh
+++ b/test/util/vercmptest.sh
@@ -118,6 +118,25 @@ runtest 1.5.1    1.5.b   1
 runtest 1.5.b-1  1.5.b   0
 runtest 1.5-1    1.5.b  -1
 
+# epoch included version comparisons
+runtest 0:1.0    0:1.0   0
+runtest 0:1.0    0:1.1  -1
+runtest 1:1.0    0:1.0   1
+runtest 1:1.0    0:1.1   1
+runtest 1:1.0    2:1.1  -1
+
+# epoch + sometimes present pkgrel
+runtest 1:1.0    0:1.0-1  1
+runtest 1:1.0-1  0:1.1-1  1
+
+# epoch included on one version
+runtest 0:1.0    1.0   0
+runtest 0:1.0    1.1  -1
+runtest 0:1.1    1.0   1
+runtest 1:1.0    1.0   1
+runtest 1:1.0    1.1   1
+runtest 1:1.1    1.1   1
+
 #END TESTS
 
 echo