pkgs: new module to display quick information about common softwares

modules/pkgs.py

@@ -0,0 +1,68 @@
+"""Get information about common software"""
+
+# PYTHON STUFFS #######################################################
+
+import portage
+
+from nemubot import context
+from nemubot.exception import IMException
+from nemubot.hooks import hook
+
+from more import Response
+
+DB = None
+
+# MODULE CORE #########################################################
+
+def get_db():
+    global DB
+    if DB is None:
+        DB = portage.db[portage.root]["porttree"].dbapi
+    return DB
+
+
+def package_info(pkgname):
+    pv = get_db().xmatch("match-all", pkgname)
+    if not pv:
+        raise IMException("No package named '%s' found" % pkgname)
+
+    bv = get_db().xmatch("bestmatch-visible", pkgname)
+    pvsplit = portage.catpkgsplit(bv if bv else pv[-1])
+    info = get_db().aux_get(bv if bv else pv[-1], ["DESCRIPTION", "HOMEPAGE", "LICENSE", "IUSE", "KEYWORDS"])
+
+    return {
+        "pkgname": '/'.join(pvsplit[:2]),
+        "category": pvsplit[0],
+        "shortname": pvsplit[1],
+        "lastvers": '-'.join(pvsplit[2:]) if pvsplit[3] != "r0" else pvsplit[2],
+        "othersvers": ['-'.join(portage.catpkgsplit(p)[2:]) for p in pv if p != bv],
+        "description": info[0],
+        "homepage": info[1],
+        "license": info[2],
+        "uses": info[3],
+        "keywords": info[4],
+    }
+
+
+# MODULE INTERFACE ####################################################
+
+@hook.command("eix",
+      help="Get information about a package",
+      help_usage={
+          "NAME": "Get information about a software NAME"
+      })
+def cmd_eix(msg):
+    if not len(msg.args):
+        raise IMException("please give me a package to search")
+
+    def srch(term):
+        try:
+            yield package_info(term)
+        except portage.exception.AmbiguousPackageName as e:
+            for i in e.args[0]:
+                yield package_info(i)
+
+    res = Response(channel=msg.channel, count=" (%d more packages)", nomore="No more package '%s'" % msg.args[0])
+    for pi in srch(msg.args[0]):
+        res.append_message("\x03\x02{pkgname}:\x03\x02 {description} - {homepage} - {license} - last revisions: \x03\x02{lastvers}\x03\x02{ov}".format(ov=(", " + ', '.join(pi["othersvers"])) if pi["othersvers"] else "", **pi))
+    return res