Added basic profile handling.

diff --git a/manga/profile.py b/manga/profile.py
new file mode 100644 (file)
index 0000000..2a82df4
--- /dev/null
+++ b/manga/profile.py
@@ -0,0 +1,191 @@
+import os
+pj = os.path.join
+
+home = os.getenv("HOME")
+if home is None or not os.path.isdir(home):
+    raise Exception("Could not find home directory for profile keeping")
+basedir = pj(home, ".manga", "profiles")
+
+def openwdir(nm, mode="r"):
+    if os.path.exists(nm):
+        return open(nm, mode)
+    if mode != "r":
+        d = os.path.dirname(nm)
+        if not os.path.isdir(d):
+            os.makedirs(d)
+    return open(nm, mode)
+
+def splitline(line):
+    def bsq(c):
+        if c == "\\": return "\\"
+        elif c == '"': return '"'
+        elif c == " ": return " "
+        elif c == "n": return "\n"
+        else: return ""
+    ret = []
+    p = 0
+    buf = ""
+    a = False
+    while p < len(line):
+        c = line[p]
+        if c.isspace():
+            p += 1
+        else:
+            while p < len(line):
+                c = line[p]
+                p += 1
+                if c == '"':
+                    a = True
+                    while p < len(line):
+                        c = line[p]
+                        p += 1
+                        if c == '"':
+                            break
+                        elif c == "\\" and p < len(line):
+                            buf += bsq(line[p])
+                            p += 1
+                        else:
+                            buf += c
+                elif c.isspace():
+                    ret.append(buf)
+                    buf = ""
+                    break
+                elif c == "\\" and p < len(line):
+                    buf += bsq(line[p])
+                    p += 1
+                else:
+                    buf += c
+    if a or buf != "":
+        ret.append(buf)
+    return ret
+
+def consline(*words):
+    buf = ""
+    for w in words:
+        if any((c == "\\" or c == '"' or c == "\n" for c in w)):
+            wb = ""
+            for c in w:
+                if c == "\\": wb += "\\\\"
+                elif c == '"': wb += '\\"'
+                elif c == "\n": wb += "\\n"
+                else: wb += c
+            w = wb
+        if w == "" or any((c.isspace() for c in w)):
+            w = '"' + w + '"'
+        if buf != "":
+            buf += " "
+        buf += w
+    return buf
+
+class manga(object):
+    def __init__(self, profile, libnm, id, path):
+        self.profile = profile
+        self.libnm = libnm
+        self.id = id
+        self.path = path
+        self.props = self.loadprops()
+
+    def loadprops(self):
+        ret = {}
+        with openwdir(self.path) as f:
+            for line in f:
+                words = splitline(line)
+                if len(words) < 1: continue
+                if words[0] == "set" and len(words) > 2:
+                    ret[words[1]] = words[2]
+                elif words[0] == "lset" and len(words) > 1:
+                    ret[words[1]] = words[2:]
+        return ret
+
+    def prop(self, key, default=KeyError):
+        if key not in self.props:
+            if default is KeyError:
+                raise KeyError(key)
+            return default
+        return self.props[key]
+
+    def setprop(self, key, val):
+        self.props[key] = val
+
+    def saveprops(self):
+        with openwdir(self.path, "w") as f:
+            for key, val in self.props.iteritems():
+                if isinstance(val, str):
+                    f.write(consline("set", key, val) + "\n")
+                else:
+                    f.write(consline("lset", key, *val) + "\n")
+
+    def open(self):
+        import lib
+        return lib.findlib(self.libnm).byid(self.id)
+
+class profile(object):
+    def __init__(self, dir):
+        self.dir = dir
+        self.name = None
+
+    def getmapping(self):
+        seq = 0
+        ret = {}
+        if os.path.exists(pj(self.dir, "map")):
+            with openwdir(pj(self.dir, "map")) as f:
+                for ln in f:
+                    words = splitline(ln)
+                    if len(words) < 1:
+                        continue
+                    if words[0] == "seq" and len(words) > 1:
+                        try:
+                            seq = int(words[1])
+                        except ValueError:
+                            pass
+                    elif words[0] == "manga" and len(words) > 3:
+                        try:
+                            ret[words[1], words[2]] = int(words[3])
+                        except ValueError:
+                            pass
+        return seq, ret
+
+    def savemapping(self, seq, m):
+        with openwdir(pj(self.dir, "map"), "w") as f:
+            f.write(consline("seq", str(seq)) + "\n")
+            for (libnm, id), num in m.iteritems():
+                f.write(consline("manga", libnm, id, str(num)) + "\n")
+
+    def getmanga(self, libnm, id, creat=False):
+        seq, m = self.getmapping()
+        if (libnm, id) in m:
+            return manga(self, libnm, id, pj(self.dir, "%i.manga" % m[(libnm, id)]))
+        if not creat:
+            raise KeyError("no such manga: (%s, %s)" % (libnm, id))
+        while True:
+            try:
+                fp = openwdir(pj(self.dir, "%i.manga" % seq), "wx")
+            except IOError:
+                seq += 1
+            else:
+                break
+        fp.close()
+        m[(libnm, id)] = seq
+        self.savemapping(seq, m)
+        return manga(self, libnm, id, pj(self.dir, "%i.manga" % seq))
+
+    def setlast(self):
+        if self.name is None:
+            raise ValueError("profile at " + self.dir + " has no name")
+        with openwdir(pj(basedir, "last"), "w") as f:
+            f.write(self.name + "\n")
+
+    @classmethod
+    def byname(cls, name):
+        if not name or name == "last" or name[0] == '.':
+            raise KeyError("invalid profile name: " + name)
+        ret = cls(pj(basedir, name))
+        ret.name = name
+        return ret
+
+    @classmethod
+    def last(cls):
+        if not os.path.exists(pj(basedir, "last")):
+            raise KeyError("there is no last used profile")
+        with open(pj(basedir, "last")) as f:
+            return cls.byname(f.readline().strip())