From 86d787a276af0042312cecd88c852aac2a28e40e Mon Sep 17 00:00:00 2001
From: pancake <pancake@flubox.(none)>
Date: Mon, 27 Oct 2008 18:06:45 +0100
Subject: [PATCH] * Initial import of chkver (compare version and package
 strings) * Oops. update-index for Makefile in / and utils/

--HG--
extra : convert_revision : 2e3132bd594600b63febf11a01bc1fd63da73398
---
 Makefile       |  8 +----
 utils/Makefile | 12 ++++++--
 utils/chkver.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 89 insertions(+), 10 deletions(-)
 create mode 100644 utils/chkver.c

diff --git a/Makefile b/Makefile
index 51cab5d0926..4750103f56e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,2 @@
 all:
-	mkdir -p utils
-	cd xbps-digest && make
-	cp -f xbps-digest/xbps-digest utils/
-	cd xbps-pkgdb && make
-	cp -f xbps-pkgdb/xbps-pkgdb utils/
-	cd xbps-digest && make clean
-	cd xbps-pkgdb && make clean
+	cd utils && make
diff --git a/utils/Makefile b/utils/Makefile
index 9010242864b..21d5beeca1c 100644
--- a/utils/Makefile
+++ b/utils/Makefile
@@ -1,10 +1,16 @@
 CFLAGS += -Wall -Werror -O3 -funroll-all-loops -ftree-loop-linear
+PREFIX  ?= /usr/local
+PKGDB_CFLAGS  += -Wall -Werror -I$(PREFIX)/include
+PKGDB_LDFLAGS += -lprop
 
-all: xbps-digest
+all: xbps-digest xbps-pkgdb
  
 xbps-digest: xbps-digest.o
 	$(CC) $(CFLAGS) $< -o $@
 
-clean:
-	-rm -rf *.o xbps-digest
+xbps-pkgdb: xbps-pkgdb.o
+	$(CC) $(PKGDB_CFLAGS) $(CFLAGS) $(PKGDB_LDFLAGS) $< -o $@
+
+clean:
+	-rm -rf *.o xbps-digest xbps-pkgdb
 
diff --git a/utils/chkver.c b/utils/chkver.c
new file mode 100644
index 00000000000..51f11b19852
--- /dev/null
+++ b/utils/chkver.c
@@ -0,0 +1,79 @@
+/* 
+ * Compare package and version strings
+ *
+ * Author: pancake <youterm.com>
+ */
+#include <stdio.h>
+#include <string.h>
+
+static int chkchr(char *ch)
+{
+	if (*ch>='0' && *ch<='9')
+		return *ch-'0';
+	switch(*ch) {
+	case 'a': if (ch[1]=='l')
+			return 0xa;
+		return -1;
+	case 'b': return 0xb;
+	case 'r': return 0xc;
+	}
+	return -1;
+		
+}
+
+static int ver2int(const char *a0, int *pow, int mpow)
+{
+	int r,ret = 0;
+	int pos = 0;
+	const char *a = a0+strlen(a0)-1;
+	for(*pow=0;a>=a0;a=a-1) {
+		if (*a=='.') {
+			 *pow=*pow+1;
+		} else {
+			r = chkchr(a);
+			if (r != -1)
+				ret+=((r+1)*((*pow)+1))<<pos++;
+		}
+		if (mpow>0 && *pow > mpow)
+			break;
+	}
+	return ret;
+}
+
+int chkver(const char *a0, const char *a1)
+{
+	int p0,p1;
+	int v0 = ver2int(a0, &p0, 0);
+	int v1 = ver2int(a1, &p1, p0);
+	return v1-v0;
+}
+
+int chkpkg(const char *a0, const char *b0)
+{
+	char *a = strchr(a0, '-');
+	char *b = strchr(b0, '-');
+
+	if (a == NULL || b== NULL) {
+		eprintf("Invalid package names\n");
+		return 0;
+	}
+	return chkver(a+1, b+1);
+}
+
+#if UNIT_TEST
+int main(int argc, char **argv)
+{
+	if (argc>2) {
+		printf("%s %s = %d\n",
+			argv[1], argv[2],
+			chkver(argv[1], argv[2]));
+	} else {
+		printf("1.2 2.2 = %d\n", chkver("1.2", "2.2"));
+		printf("1.0 10.3 = %d\n", chkver("1.0", "10.3"));
+		printf("1.0 1.0  = %d\n", chkver("1.0", "1.0"));
+		printf("1.0 1.2  = %d\n", chkver("1.0", "1.2"));
+		printf("1.0.1 1.0.2 = %d\n", chkver("1.0.1", "1.0.2"));
+		printf("1.0beta 1.0rc1 = %d\n", chkver("1.0beta", "1.0rc1"));
+	}
+}
+#endif