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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, see . from __future__ import print_function import sys import re import subprocess from debian import debtags import apt class SmartSearcher: def __init__(self, fullcoll, query): self.apt_cache = apt.Cache() self.wanted = set() self.unwanted = set() self.ignored = set() self.interesting = [] self.tags_in_menu = [] self.fullcoll = fullcoll self.subcoll = fullcoll # Initialise the search self.compute_interesting(query) def compute_interesting(self, query): input = subprocess.Popen("apt-cache search " + query, shell=True, stdout = subprocess.PIPE, close_fds = True) # Read the package list and create the subcollection pkgs = [] for pkg in input.stdout: pkg, none = pkg.rstrip("\n").split(' - ', 1) #print(pkg) pkgs.append(pkg) subcoll = self.fullcoll.choose_packages(pkgs) rel_index = debtags.relevance_index_function(self.fullcoll, subcoll) # Get all the tags sorted by increasing relevance self.interesting = sorted(self.subcoll.iter_tags(), lambda b, a: cmp(rel_index(a), rel_index(b))) def tag_match(self, pkg): tags = self.fullcoll.tags_of_package(pkg) if len(self.wanted) > 0 and not self.wanted.issubset(tags): return False if len(self.unwanted) > 0 and len(tags.intersection(self.unwanted)) > 0: return False return True def refilter(self): # Regenerate subcoll self.subcoll = self.fullcoll.filter_packages(self.tag_match) def show_set(self, tags, type): for tag in tags: self.tags_in_menu.append(tag) print("%d) %s (%s)" % (len(self.tags_in_menu), tag, type)) def show_choice_sequence(self, seq, max = 7): for tag in seq: if tag in self.wanted or tag in self.unwanted or tag in self.ignored: continue self.tags_in_menu.append(tag) print("%d) %s (%d/%d)" % \ (len(self.tags_in_menu), tag, self.subcoll.card(tag), self.subcoll.package_count())) max = max - 1 if max == 0: break def show_tags(self): self.tags_in_menu = [] self.show_set(self.wanted, "wanted") self.show_set(self.unwanted, "unwanted") self.show_set(self.ignored, "ignored") print self.show_choice_sequence(self.interesting) print # Compute the most interesting tags by discriminance discr = sorted(self.subcoll.iter_tags(), \ lambda a, b: cmp(self.subcoll.discriminance(a), self.subcoll.discriminance(b))) self.show_choice_sequence(discr) def output_packages(self): for pkg in self.subcoll.iter_packages(): aptpkg = self.apt_cache[pkg] desc = aptpkg.raw_description.split("\n")[0] print(pkg, "-", desc) def interact(self): done = False while not done: print("Tag selection:") self.show_tags() print(self.subcoll.package_count(), " packages selected so far.") changed = False sys.stdout.write("Your choice (+#, -#, =#, K word, View, Done, Quit, ?): ") ans = sys.stdin.readline() if ans == None: break ans = ans.strip(" \t\n") # If we're setting a new keyword search, process now and skip # processing as a list if ans == "?": print("+ number select the tag with the given number as a tag you want") print("- number select the tag with the given number as a tag you do not want") print("= number select the tag with the given number as a tag you don't care about") print("K word recompute the set of interesting tags from a full-text search using the given word") print("V view the packages selected so far") print("D print the packages selected so far and exit") print("Q quit debtags smart search") print("? print this help information") elif ans[0] == 'k' or ans[0] == 'K': # Strip initial command and empty spaces ans = ans[1:].strip(); if len(ans) == 0: print("The 'k' command needs a keyword to use for finding new interesting tags.") else: self.compute_interesting(ans) ans = '' else: # Split the answer by spaces for cmd in ans.split(): if cmd[0] == '+' or cmd[0] == '-' or cmd[0] == '=': try: idx = int(cmd[1:]) except ValueError: print(cmd, "should have a number after +, - or =") continue if idx > len(self.tags_in_menu): print("Tag", idx, "was not on the menu.") else: tag = self.tags_in_menu[idx - 1] # cout << "Understood " << ans << " as " << ans[0] << tag.fullname() << endl; if cmd[0] == '+': self.wanted.add(tag) if tag in self.unwanted: self.unwanted.remove(tag) if tag in self.ignored: self.ignored.remove(tag) if cmd[0] == '-': if tag in self.wanted: self.wanted.remove(tag) self.unwanted.add(tag) if tag in self.ignored: self.ignored.remove(tag) if cmd[0] == '=': if tag in self.wanted: self.wanted.remove(tag) if tag in self.unwanted: self.unwanted.remove(tag) self.ignored.add(tag) changed = True elif cmd == "V" or cmd == "v": self.output_packages() elif cmd == "D" or cmd == "d": self.output_packages() done = True; elif cmd == "Q" or cmd == "q": done = True; else: print("Ignoring command \"%s\"" % (cmd)) if changed: self.refilter() if len(sys.argv) < 3: print("Usage: %s tagdb keywords..." % (sys.argv[0]), file=sys.stderr) sys.exit(1) # Main starts fullcoll = debtags.DB() # Read full database tag_filter = re.compile(r"^special::.+$|^.+::TODO$") fullcoll.read(open(sys.argv[1], "r"), lambda x: not tag_filter.match(x)) searcher = SmartSearcher(fullcoll, " ".join(sys.argv[2:])) searcher.interact() # vim:set ts=4 sw=4 expandtab: