apt-extracttemplates stuff from debconf

Author: tausq
Date: 2001-02-23 04:28:49 GMT
apt-extracttemplates stuff from debconf

1 files changed, 142 insertions, 0 deletions

diff --git a/cmdline/apt-extracttemplates.cc b/cmdline/apt-extracttemplates.cc
new file mode 100644
index 000000000..b7af03005
--- /dev/null
+++ b/cmdline/apt-extracttemplates.cc
@@ -0,0 +1,142 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#define _GNU_SOURCE
+#include <getopt.h>
+#include <wait.h>
+#include <fstream.h>
+
+#include <apt-pkg/init.h>
+#if APT_PKG_MAJOR >= 3
+#define APT_COMPATIBILITY 986
+#include <apt-pkg/debversion.h>
+#endif
+#include <apt-pkg/pkgcache.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/progress.h>
+#include <apt-pkg/sourcelist.h>
+#include <apt-pkg/pkgcachegen.h>
+#include <apt-pkg/version.h>
+#include "debfile.h"
+	
+#define TMPDIR "/var/lib/debconf/"
+#define STR(x) (x ? x : "")
+//#define TMPDIR "tmp/"
+
+void help(void)
+{
+	fprintf(stderr, "apt-extracttemplates deb [deb]\n");
+	exit(0);
+}
+
+char *writefile(const char *prefix, const char *data)
+{
+	char fn[512];
+	static int i;
+	snprintf(fn, sizeof(fn), "%s%s.%u%d", TMPDIR, prefix, getpid(), i++);
+
+	if (data == NULL) data = "";
+
+	ofstream ofs(fn);
+	if (!ofs) return NULL;
+	ofs << data;
+	ofs.close();
+	return strdup(fn);
+}
+
+void writeconfig(const DebFile &file)
+{
+	char *templatefile = writefile("template", file.Template);
+	char *configscript = writefile("config", file.Config);
+
+	if (templatefile == 0 || configscript == 0)
+	{
+		fprintf(stderr, "Cannot write config script or templates\n");
+		return;
+	}
+	printf("%s %s %s %s\n",
+		STR(file.Package),	// Package
+		STR(file.Version),	// Version
+		templatefile,	// Template
+		configscript 	// Config
+	);
+}
+
+void init(MMap *&Map, pkgCache *&Cache)
+{
+	// Initialize the apt cache
+	if (pkgInitConfig(*_config) == false || pkgInitSystem(*_config, _system) == false)
+	{
+		fprintf(stderr, "Cannot initialize apt cache\n");
+		return;
+	}
+	pkgSourceList List;
+	List.ReadMainList();
+	OpProgress Prog;
+	pkgMakeStatusCache(List,Prog,&Map,true);
+	Cache = new pkgCache(Map);
+}
+
+int main(int argc, char **argv, char **env)
+{
+	int idx = 0;
+	char **debs = 0;
+	int numdebs = 0;
+	MMap *Map = 0;
+	const char *debconfver = NULL;
+
+	init(Map, DebFile::Cache);
+	if (Map == 0 || DebFile::Cache == 0)
+	{
+		fprintf(stderr, "Cannot initialize APT cache\n");
+		return 1;
+	}
+
+	debconfver = DebFile::GetInstalledVer("debconf");
+	
+	if (debconfver == NULL) 
+	{
+		fprintf(stderr, "Cannot get debconf version. Is debconf installed?\n");
+		return 1;
+	}
+
+	numdebs = argc - 1;
+	debs = new char *[numdebs];
+	memcpy(debs, &argv[1], sizeof(char *) * numdebs);
+
+	if (numdebs < 1) 
+	{
+		fprintf(stderr, "apt-extracttemplates foo.deb [...]\n");
+		return 0;
+	}
+
+	for (idx = 0; idx < numdebs; idx++)
+	{
+		DebFile file(debs[idx]);
+		if (file.Go() == false) 
+		{
+			fprintf(stderr, "Cannot read %s\n", debs[idx]);
+			continue;
+		}
+		if (file.Template != 0 && file.ParseInfo() == true)
+		{
+			if (file.DepVer != 0 && *file.DepVer != 0 &&
+			    pkgCheckDep(file.DepVer, 
+			                debconfver, file.DepOp) == false) 
+				continue;
+			if (file.PreDepVer != 0 && *file.PreDepVer != 0 &&
+			    pkgCheckDep(file.PreDepVer, 
+			                debconfver, file.PreDepOp) == false) 
+				continue;
+
+			writeconfig(file);
+		}
+	}
+	
+
+	delete Map;
+	delete DebFile::Cache;
+
+	return 0;
+}