1 files changed, 115 insertions, 0 deletions
diff --git a/guesscomponent.c b/guesscomponent.c
new file mode 100644
index 0000000..8a13fc7
--- /dev/null
+++ b/guesscomponent.c
@@ -0,0 +1,115 @@
+/*  This file is part of "reprepro"
+ *  Copyright (C) 2003 Bernhard R. Link
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02111-1301  USA
+ */
+#include <config.h>
+
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <strings.h>
+#include <stdio.h>
+#include "error.h"
+#include "guesscomponent.h"
+
+/* Guess which component to use:
+ * - if the user gave one, use that one.
+ * - if the section is a componentname, use this one
+ * - if the section starts with a componentname/, use this one
+ * - if the section ends with a /componentname, use this one
+ * - if the section/ is the start of a componentname, use this one
+ * - use the first component in the list
+ */
+
+retvalue guess_component(const char *codename, const struct atomlist *components, const char *package, const char *section, component_t givencomponent, component_t *guess) {
+	int i;
+	size_t section_len;
+
+	if (verbose >= 15) {
+		fprintf(stderr, "trace: guess_component(codename=%s, components=[", codename);
+		(void)atomlist_fprint(stderr, at_component, components);
+		fprintf(stderr, "], package=%s, section=%s, givencomponent=%s) called.\n",
+		        package, section, atoms_components[givencomponent]);
+	}
+
+	if (atom_defined(givencomponent)) {
+		if (!atomlist_in(components, givencomponent)) {
+			(void)fprintf(stderr,
+"Could not find '%s' in components of '%s': '",
+					atoms_components[givencomponent],
+					codename);
+			(void)atomlist_fprint(stderr,
+					at_component, components);
+			(void)fputs("'\n", stderr);
+			return RET_ERROR;
+		}
+		*guess = givencomponent;
+		return RET_OK;
+	}
+	if (section == NULL) {
+		fprintf(stderr,
+"Found no section for '%s', so I cannot guess the component to put it in!\n",
+				package);
+		return RET_ERROR;
+	}
+	if (components->count <= 0) {
+		fprintf(stderr,
+"I do not find any components in '%s', so there is no chance I cannot even take one by guessing!\n",
+				codename);
+		return RET_ERROR;
+	}
+	section_len = strlen(section);
+
+	for (i = 0 ; i < components->count ; i++) {
+		const char *component = atoms_components[components->atoms[i]];
+
+		if (strcmp(section, component) == 0) {
+			*guess = components->atoms[i];
+			return RET_OK;
+		}
+	}
+	for (i = 0 ; i < components->count ; i++) {
+		const char *component = atoms_components[components->atoms[i]];
+		size_t len = strlen(component);
+
+		if (len<section_len && section[len] == '/' &&
+				strncmp(section, component, len) == 0) {
+			*guess = components->atoms[i];
+			return RET_OK;
+		}
+	}
+	for (i = 0 ; i < components->count ; i++) {
+		const char *component = atoms_components[components->atoms[i]];
+		size_t len = strlen(component);
+
+		if (len<section_len && section[section_len-len-1] == '/' &&
+				strncmp(section+section_len-len, component, len)
+				== 0) {
+			*guess = components->atoms[i];
+			return RET_OK;
+		}
+	}
+	for (i = 0 ; i < components->count ; i++) {
+		const char *component = atoms_components[components->atoms[i]];
+
+		if (strncmp(section, component, section_len) == 0 &&
+				component[section_len] == '/') {
+			*guess = components->atoms[i];
+			return RET_OK;
+		}
+
+	}
+	*guess = components->atoms[0];
+	return RET_OK;
+}