From: Mark Huang <mlhuang@cs.princeton.edu>
Date: Wed, 8 Mar 2006 21:19:16 +0000 (+0000)
Subject: - parse RPM spec files for real using C library. Can't use Python
X-Git-Tag: planetlab-3_3-branch-point~22
X-Git-Url: http://git.onelab.eu/?a=commitdiff_plain;h=b4cd26785fca00250c33964e12be40d358b48482;p=build.git

- parse RPM spec files for real using C library. Can't use Python
  bindings since they do not export tags.
---

diff --git a/parseSpec.c b/parseSpec.c
new file mode 100644
index 00000000..c1e0a348
--- /dev/null
+++ b/parseSpec.c
@@ -0,0 +1,100 @@
+/*
+ * Parses RPM spec file into Makefile fragment. See
+ *
+ * http://fedora.redhat.com/docs/drafts/rpm-guide-en/ch-programming-c.html
+ *
+ * Mark Huang <mlhuang@cs.princeton.edu>
+ * Copyright (C) 2006 The Trustees of Princeton University
+ *
+ * $Id: rollout.py,v 1.3 2005/06/21 19:12:44 mlhuang Exp $
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libgen.h>
+#include <rpm/rpmlib.h>
+#include <rpm/rpmts.h>
+#include <rpm/rpmcli.h>
+#include <rpm/rpmbuild.h>
+#include <rpm/rpmspec.h>
+
+/* the structure describing the options we take and the defaults */
+static struct poptOption optionsTable[] = {
+	{ NULL, '\0', POPT_ARG_INCLUDE_TABLE, rpmcliAllPoptTable, 0,
+	  "Common options for all rpm modes and executables:",
+	  NULL },
+
+	POPT_AUTOALIAS
+	POPT_AUTOHELP
+	POPT_TABLEEND
+};
+
+/* Stolen from rpm/build/spec.c:rpmspecQuery() */
+Spec
+rpmspecGet(rpmts ts, const char * arg)
+{
+	char * buildRoot = NULL;
+	int recursing = 0;
+	char * passPhrase = "";
+	char *cookie = NULL;
+	int anyarch = 1;
+	int force = 1;
+
+	if (parseSpec(ts, arg, "/", buildRoot, recursing, passPhrase,
+		      cookie, anyarch, force)) {
+		fprintf(stderr, "query of specfile %s failed, can't parse\n", arg);
+		return NULL;
+	}
+
+	return rpmtsSpec(ts);
+}
+
+int
+main(int argc, char *const argv[])
+{
+	poptContext context;
+	rpmts ts = NULL;
+	QVA_t qva = &rpmQVKArgs;
+	int ec = 0;
+	Spec spec;
+	struct Source *source;
+
+	/* Parse common options for all rpm modes and executables */
+	context = rpmcliInit(argc, argv, optionsTable);
+
+	/* Create transaction state */
+	ts = rpmtsCreate();
+
+	/* Parse spec file. The rpmcli functions don't allow you to
+	 * access the Spec structure directly, so we call our own
+	 * version of parseSpec() directly. */
+	spec = rpmspecGet(ts, argv[1]);
+	if (spec && spec->sources) {
+		for (source = spec->sources; source; source = source->next) {
+			char fullSource[PATH_MAX];
+			strncpy(fullSource, source->fullSource, sizeof(fullSource));
+			printf("SOURCES += SOURCES/%s\n", basename(fullSource));
+		}
+	}
+		
+	/* This is what would popt would do if --specfile were
+	 * specified. */
+	qva->qva_source |= RPMQV_SPECFILE;
+	qva->qva_sourceCount++;
+	qva->qva_mode = 'q';
+	qva->qva_specQuery = rpmspecQuery;
+
+	/* Get SRPM name from name of first package */ 
+	qva->qva_queryFormat = "SRPM := SRPMS/%{name}-%{version}-%{release}.src.rpm\n";
+	if (spec && spec->packages)
+		showQueryPackage(qva, ts, spec->packages->header);
+
+	/* Print all packages */
+	qva->qva_queryFormat = "RPMS += RPMS/%{ARCH}/%{name}-%{version}-%{release}.%{ARCH}.rpm\n";
+	ec = rpmcliQuery(ts, qva, (const char **) &argv[1]);
+
+	ts = rpmtsFree(ts);
+	context = rpmcliFini(context);
+	return ec;
+}