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syntactic improvements, plus now prioritizes correctly

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This commit is contained in:
Dimitri Rusin 2018-07-13 16:34:32 +00:00
parent a96621c6ec
commit 3193b7f93a
1 changed files with 21 additions and 21 deletions
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42
app/src/main/java/org/fdroid/fdroid/data/DBHelper.java
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@ -258,18 +258,13 @@ public class DBHelper extends SQLiteOpenHelper {
ensureIndexes(db);
// Always, load the internal defaults afterwards. This way, F-Droid native repos can never be deleted
List<String> defaultRepos = loadDefaultReposInternal();
List<String> defaultRepos = loadDefaultRepos();
// Insert all the repos into the database
if (defaultRepos.size() % REPO_XML_ARG_COUNT != 0) {
throw new IllegalArgumentException(
"default_repo.xml array does not have the right number of elements");
"At least one of the internally or externally loaded default repos does not have " + REPO_XML_ARG_COUNT + " entries.");
}
// Load a couple external default repos from one of { "/oem", "/odm", "/vendor", "/system" }
defaultRepos.addAll(loadDefaultReposExternal());
Utils.debugLog(TAG, "defaultRepos.size(): " + defaultRepos.size());
for (int i = 0; i < defaultRepos.size(); i += REPO_XML_ARG_COUNT) {
insertRepo(
db,
@ -278,41 +273,43 @@ public class DBHelper extends SQLiteOpenHelper {
defaultRepos.get(i + 2), // description
defaultRepos.get(i + 3), // version
defaultRepos.get(i + 4), // enabled
defaultRepos.get(i + 5), // priority
Integer.toString(i), // priority; currently ignored
defaultRepos.get(i + 6), // pushRequests
defaultRepos.get(i + 7) // pubkey
);
}
}
private List<String> loadDefaultReposInternal() {
return new LinkedList<>(Arrays.asList(context.getResources().getStringArray(R.array.default_repos)));
}
/*
* Look for external repositories under { "/oem", "/odm", "/vendor", "/system" }
* If ROOT is one of those paths and 'packageName' is the name of the package
* that contains this class, then we look under 'root'/etc/'packageName'/additional_repos.xml
*/
private List<String> loadDefaultReposExternal() {
List<String> externalRepos = new LinkedList<>();
private List<String> loadDefaultRepos() {
// First, take the built-in repos.
List<String> externalRepos = new LinkedList<>(Arrays.asList(context.getResources().getStringArray(R.array.default_repos)));
// Second, take the external repos. We will later prioritize the repos according their order in the list externalRepos.
final String packageName = context.getPackageName();
for (String root : Arrays.asList("/oem", "/odm", "/vendor", "/system")) {
String defaultReposPath = root + "/etc/" + packageName + "/additional_repos.xml";
for (String root : Arrays.asList("/system", "/vendor", "/odm", "/oem")) {
String additionalReposPath = root + "/etc/" + packageName + "/additional_repos.xml";
try {
File defaultReposFile = new File(defaultReposPath);
File defaultReposFile = new File(additionalReposPath);
if (defaultReposFile.exists() && defaultReposFile.isFile()) {
externalRepos.addAll(parseXmlRepos(defaultReposFile));
}
} catch (Exception e) {
Utils.debugLog(TAG, "Error loading " + defaultReposPath);
Utils.debugLog(TAG, "Error loading " + additionalReposPath);
Utils.debugLog(TAG, "Exception: " + e.getMessage());
break;
continue;
}
}
return externalRepos;
}
/*
* Take an xml file in the same format as the internal default_repos.xml and parse it into a list of items.
*/
private List<String> parseXmlRepos(File defaultReposFile) throws IOException, XmlPullParserException {
List<String> defaultRepos = new LinkedList<>();
InputStream xmlInputStream = null;
@ -325,31 +322,34 @@ public class DBHelper extends SQLiteOpenHelper {
// Type of piece of xml file, can be END_DOCUMENT, TEXT, END_TAG, START_TAG, ...
int eventType = parser.getEventType();
boolean isItem = false;
/* Walk through all TEXT pieces of the xml file and put them into our list of default repos.
* This could be improved by structuring the content for example into a list of lists where each contained list represents a repository, but
* we do it the traditional way.
*/
boolean isItem = false;
while (eventType != XmlPullParser.END_DOCUMENT) {
String tagname = parser.getName();
switch (eventType) {
// If an item starts, remember that in isItem
case XmlPullParser.START_TAG:
if (tagname.equals("item")) {
isItem = true;
}
break;
// If an item ends, also remember that in isItem
case XmlPullParser.END_TAG:
isItem = false;
break;
// If this is a textblock of an item tag, extract that into defaultRepos
case XmlPullParser.TEXT:
if (isItem) {
defaultRepos.add(new String(parser.getText())); // This is a piece of real information in the xml file
}
break;
}
eventType = parser.next();
}
xmlInputStream.close();
return defaultRepos;
}