local: Treat dots/periods as digits in destructuring directories.

[automanga.git] / manga / profile.py

diff --git a/manga/profile.py b/manga/profile.py
index 85e47b3..2b7a15a 100644 (file)
--- a/manga/profile.py
+++ b/manga/profile.py
@@ -4,16 +4,49 @@ 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")
+confdir = pj(home, ".manga")
+basedir = pj(confdir, "profiles")
+
+class txfile(object):
+    def __init__(self, name, mode):
+        self.realname = name
+        self.tempname = name + ".new"
+        self.bk = open(self.tempname, mode)
+
+    def close(self, abort=False):
+        self.bk.close()
+        if abort:
+            os.unlink(self.tempname)
+        else:
+            os.rename(self.tempname, self.realname)
+
+    def read(self, sz=-1):
+        return self.bk.read(sz)
+
+    def write(self, data):
+        return self.bk.write(data)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *exc_info):
+        if exc_info[0] is not None:
+            self.close(True)
+        else:
+            self.close(False)
 
 def openwdir(nm, mode="r"):
+    ft = open
+    if mode == "W":
+        mode = "w"
+        ft = txfile
     if os.path.exists(nm):
-        return open(nm, mode)
+        return ft(nm, mode)
     if mode != "r":
         d = os.path.dirname(nm)
         if not os.path.isdir(d):
             os.makedirs(d)
-    return open(nm, mode)
+    return ft(nm, mode)
 
 def splitline(line):
     def bsq(c):
@@ -93,7 +126,7 @@ class manga(object):
         self.props = self.loadprops()
 
     def open(self):
-        import lib
+        from . import lib
         return lib.findlib(self.libnm).byid(self.id)
 
     def save(self):
@@ -146,8 +179,8 @@ class tagview(object):
 
     @staticmethod
     def save(profile, m):
-        with profile.file("tags", "w") as fp:
-            for (libnm, id), tags in m.iteritems():
+        with profile.file("tags", "W") as fp:
+            for (libnm, id), tags in m.items():
                 fp.write(consline(libnm, id, *tags) + "\n")
 
     @staticmethod
@@ -179,13 +212,19 @@ class filemanga(manga):
         return ret
 
     def save(self):
-        with openwdir(self.path, "w") as f:
-            for key, val in self.props.iteritems():
+        with openwdir(self.path, "W") as f:
+            for key, val in self.props.items():
                 if isinstance(val, str):
                     f.write(consline("set", key, val) + "\n")
                 else:
                     f.write(consline("lset", key, *val) + "\n")
 
+    def mtime(self):
+        try:
+            return os.stat(self.path).st_mtime
+        except FileNotFoundError:
+            return 0
+
 class profile(object):
     def __init__(self, dir):
         self.dir = dir
@@ -210,9 +249,9 @@ class profile(object):
         return seq, ret
 
     def savemapping(self, seq, m):
-        with openwdir(pj(self.dir, "map"), "w") as f:
+        with openwdir(pj(self.dir, "map"), "W") as f:
             f.write(consline("seq", str(seq)) + "\n")
-            for (libnm, id), num in m.iteritems():
+            for (libnm, id), num in m.items():
                 f.write(consline("manga", libnm, id, str(num)) + "\n")
 
     def getmanga(self, libnm, id, creat=False):
@@ -223,7 +262,7 @@ class profile(object):
             raise KeyError("no such manga: (%s, %s)" % (libnm, id))
         while True:
             try:
-                fp = openwdir(pj(self.dir, "%i.manga" % seq), "wx")
+                fp = openwdir(pj(self.dir, "%i.manga" % seq), "x")
             except IOError:
                 seq += 1
             else:
@@ -236,7 +275,7 @@ class profile(object):
     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:
+        with openwdir(pj(basedir, "last"), "W") as f:
             f.write(self.name + "\n")
 
     def getaliases(self):
@@ -251,8 +290,8 @@ class profile(object):
         return ret
 
     def savealiases(self, map):
-        with openwdir(pj(self.dir, "alias"), "w") as f:
-            for nm, (libnm, id) in map.iteritems():
+        with openwdir(pj(self.dir, "alias"), "W") as f:
+            for nm, (libnm, id) in map.items():
                 f.write(consline("alias", nm, libnm, id) + "\n")
 
     def file(self, name, mode="r"):