- 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 (file)
index 0000000..c1e0a34
--- /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;
+}