initial commit

Makefile

@@ -0,0 +1,17 @@
+testinput: run.py
+	./run.py > testinput
+
+testdpkg: testdpkg.c
+	gcc testdpkg.c -ldpkg -o testdpkg
+
+testapt: testapt.cc
+	g++ testapt.cc -lapt-pkg -o testapt
+
+testdose: testdose.ml
+	ocamlfind ocamlc -package dose3 -linkpkg testdose.ml -o testdose
+
+.PHONY: test
+test: testinput testdpkg testapt
+	./rundpkg.sh < testinput | md5sum
+	./testapt < testinput | md5sum
+	./testdose < testinput | md5sum

run.py

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+#!/usr/bin/env python
+
+import deb822
+
+versions = set()
+with open("/home/josch/gsoc2012/bootstrap/Packages") as f:
+    for pkg in deb822.Deb822.iter_paragraphs(f, use_apt_pkg=False):
+        ver = pkg.get('Version')
+        if ver:
+            versions.add(ver)
+
+# create a list of all possible combinations of two versions by iterating
+# through the list of versions and comparing every version with all that come
+# after it
+versions = sorted(versions)
+for i,v1 in enumerate(versions):
+    for v2 in versions[i+1:]:
+        print("%s\t%s"%(v1,v2))

rundpkg.sh

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+#!/bin/sh
+# we need to do this because of bug#47214
+split --lines=1000000 --numeric-suffixes --suffix-length=4 --filter='./testdpkg'

testapt.cc

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+#include <apt-pkg/debversion.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main()
+{
+    char *line = NULL;
+    char *token;
+    char *orig1;
+    char *orig2;
+    char *ver1;
+    char *ver2;
+    size_t len = 0;
+    size_t read;
+    int ret;
+    while ((read = getline(&line, &len, stdin)) != -1) {
+        //fprintf(stderr, "%s", line);
+        orig1 = strdup(line);
+        orig2 = strdup(line);
+        token = orig1;
+        ver1 = strsep(&token, "\t");
+        if (ver1 == NULL) {
+            fprintf(stderr, "cannot read token1");
+            exit(EXIT_FAILURE);
+        }
+        ver2 = strsep(&token, "\n");
+        if (ver2 == NULL) {
+            fprintf(stderr, "cannot read token2");
+            exit(EXIT_FAILURE);
+        }
+        ret = debVS.CmpVersion(ver1, ver2);
+        if (ret == 0) {
+            fputc('=', stdout);
+        } else if (ret > 0) {
+            fputc('>', stdout);
+        } else {
+            fputc('<', stdout);
+        }
+        //fputs(orig2, stdout);
+        free(orig1);
+        free(orig2);
+    }
+    exit(EXIT_SUCCESS);
+}

testdose.ml

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+open Debian
+open ExtLib
+
+let main () =
+  List.iter (fun line ->
+      let ver1, ver2 = String.split line "\t" in
+      let ret = Version.compare ver1 ver2 in
+      print_char (if ret > 0 then '>' else if ret < 0 then '<' else '=')
+    ) (Std.input_list stdin);
+;;
+
+main ();;

testdpkg.c

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+#define LIBDPKG_VOLATILE_API 1
+#define _GNU_SOURCE
+#include <dpkg/dpkg.h>
+#include <dpkg/version.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main()
+{
+    char *line = NULL;
+    char *token;
+    char *orig1;
+    char *orig2;
+    char *ver1;
+    char *ver2;
+    size_t len = 0;
+    size_t read;
+    struct dpkg_version a, b;
+    int ret;
+    while ((read = getline(&line, &len, stdin)) != -1) {
+        //fprintf(stderr, "%s", line);
+        orig1 = strdup(line);
+        orig2 = strdup(line);
+        token = orig1;
+        ver1 = strsep(&token, "\t");
+        if (ver1 == NULL) {
+            fprintf(stderr, "cannot read token1");
+            exit(EXIT_FAILURE);
+        }
+        if(parseversion(&a, ver1, NULL)) {
+            fprintf(stderr, "cannot parse version1 %s\n", ver1);
+            exit(EXIT_FAILURE);
+        }
+        ver2 = strsep(&token, "\n");
+        if (ver2 == NULL) {
+            fprintf(stderr, "cannot read token2");
+            exit(EXIT_FAILURE);
+        }
+        if(parseversion(&b, ver2, NULL)) {
+            fprintf(stderr, "cannot parse version2 %s\n", ver2);
+            exit(EXIT_FAILURE);
+        }
+        ret = dpkg_version_compare(&a, &b);
+        if (ret == 0) {
+            fputc('=', stdout);
+        } else if (ret > 0) {
+            fputc('>', stdout);
+        } else {
+            fputc('<', stdout);
+        }
+        //fputs(orig2, stdout);
+        free(orig1);
+        free(orig2);
+    }
+    exit(EXIT_SUCCESS);
+}