initial archive browsing support

--HG--
branch : pmacs2

application.py

@@ -347,19 +347,22 @@ class Application(object):
     def close_buffer_by_name(self, name):
         if self.has_buffer_name(name):
             self.close_buffer(self.get_buffer_by_name(name))
+
+    def make_name(self, name):
+        if self.has_buffer_name(name):
+            i = 1
+            auxname = '%s/%d' % (name, i)
+            while self.has_buffer_name(auxname):
+                i += 1
+                auxname = '%s/%d' % (name, i)
+            name = auxname
+        return name
     
     def open_path(self, path, binary=False, cipher=None, password=None):
         path = os.path.abspath(os.path.realpath(util.expand_tilde(path)))
         b = self.get_buffer_by_path(path)
         if b is None:
-            name = os.path.basename(path)
-            if self.has_buffer_name(name):
-                i = 1
-                auxname = '%s/%d' % (name, i)
-                while self.has_buffer_name(auxname):
-                    i += 1
-                    auxname = '%s/%d' % (name, i)
-                name = auxname
+            name = self.make_name(os.path.basename(path))
 
             mode_name = None
             if cipher is None:

buffer/fs.py

@@ -1,5 +1,9 @@
 import fnmatch
-import dirutil, os
+import os
+import shutil
+import tempfile
+
+import dirutil
 from buffer import Buffer
 
 ignore = ['*.o', '*.lo', '*.la', '#*#', '*.rej', '*~', '.#*', '.DS_Store',
@@ -25,7 +29,7 @@ class DirBuffer(Buffer):
     def path_exists(self):
         return os.path.exists(self.path)
 
-    def _get_names(self):
+    def get_names(self):
         if not self.path_exists():
             raise Exception, "directory %r does not exists" % self.path
         names = os.listdir(self.path)
@@ -36,7 +40,7 @@ class DirBuffer(Buffer):
     def _make_path(self, name):
         return os.path.join(self.path, name)
     def _get_lines(self):
-        names = self._get_names()
+        names = self.get_names()
 
         fieldlines = []
         maxlens = [0] * 5
@@ -82,6 +86,34 @@ class DirBuffer(Buffer):
     def save_as(self, path):
         raise Exception, "can't save a directory buffer"
 
+class ArchiveBuffer(DirBuffer):
+    btype = 'archive'
+    types = [
+        ['.tar', 'tar xf %(archive)r -C %(dir)r'],
+        ['.tgz', 'tar xfz %(archive)r -C %(dir)r'],
+        ['.tar.gz', 'tar xfz %(archive)r -C %(dir)r'],
+        ['.tar.bz2', 'tar xfj %(archive)r -C %(dir)r'],
+        #['.gz', 'gunzip %(archive)r'],
+        #['.bz2', 'bunzip2 %(archive)r'],
+        #['.zip', 'unzip %(archive)r'],
+        #['.jar', 'unzip %(archive)r'],
+    ]
+    def __init__(self, path, name=None):
+        self.archive = os.path.realpath(path)
+        for suffix, cmd in self.types:
+            if self.archive.endswith(suffix):
+                path = tempfile.mkdtemp()
+                cwd = os.getcwd()
+                os.chdir(path)
+                s = cmd % {'archive': self.archive, 'dir': path}
+                os.chdir(cwd)
+                retval = os.system(s)
+                if retval != 0: raise Exception("%r failed" % s)
+        DirBuffer.__init__(self, path, name)
+
+    def close(self):
+        shutil.rmtree(self.path)
+
 class PathListBuffer(DirBuffer):
     btype = 'pathlist'
     def __init__(self, name, paths):
@@ -93,7 +125,7 @@ class PathListBuffer(DirBuffer):
         self.settings['type-sort'] = False
     def path_exists(self):
         raise Exception
-    def _get_names(self):
+    def get_names(self):
         cwd = os.getcwd()
         return [x.replace(cwd, '.', 1) for x in self.paths]
     def _make_path(self, name):

mode/dir.py

@@ -4,7 +4,7 @@ import buffer, buffer.fs
 from window import Window
 from lex import Grammar, PatternRule, RegionRule, PatternMatchRule
 from point import Point
-from method import Method, Argument
+from method import Method, Argument, arg
 
 class PermGrammar(Grammar):
     rules = [
@@ -59,12 +59,36 @@ class SortName(FsSettingBase):
     msg = "Sorting files by name, type"
     def _doit(self, w, **vargs): w.buffer.settings['type-sort'] = False
 
+class OpenArchive(Method):
+    args = [arg('path', dt="path", p="Open Archive: ", h="archive to open")]
+    def _execute(self, w, **vargs):
+        path = vargs['path']
+        a = w.application
+        b = a.get_buffer_by_path(path)
+        if not b:
+            name = a.make_name(os.path.basename(path))
+            b = buffer.fs.ArchiveBuffer(path, name)
+            b.open()
+            Window(b, a, height=0, width=0, mode_name='dir')
+            a.add_buffer(b)
+        a.methods['switch-buffer'].execute(w, buffername=b.name())
+        if b.btype != 'archive':
+            return
+        names = [x for x in b.get_names() if x != '.' and x != '..']
+        if len(names) == 1:
+            path2 = os.path.join(b.path, names[0])
+            a.methods['open-file'].execute(w, filename=path2)
+
 class DirRefresh(Method):
     def _execute(self, w, **vargs):
-        t = dirutil.resolve_token(w)
-        s = t.string
+        t = None
+        try:
+            t = dirutil.resolve_token(w)
+            s = t.string
+        except:
+            pass
         w.buffer.reload()
-        dirutil.find_name(w, s)
+        if t: dirutil.find_name(w, s)
 class DirOpen(Method):
     def _execute(self, w, **vargs):
         path = dirutil.resolve_path(w)
@@ -219,7 +243,8 @@ class Dir(mode.Fundamental):
     }
     actions = [DirRefresh, DirOpen, DirGrep, DirChmod, DirChown, DirChgrp,
                DirTouch, DirRemove, HideDotFiles, ShowDotFiles, SortName,
-               SortType]
+               SortType,
+               OpenArchive]
     def __init__(self, w):
         mode.Fundamental.__init__(self, w)
         self.add_bindings('dir-refresh', ('C-c r',))