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[dak/master 8/8] Refactor functions getSource() and getBinaries().



Both functions are moved from dak/generate_filelist.py to
daklib/lists.py. The generator now yields a tuple with the id as the
first element.

Signed-off-by: Torsten Werner <twerner@debian.org>
---
 dak/generate_filelist.py |   89 +-------------------------------
 daklib/lists.py          |  127 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 130 insertions(+), 86 deletions(-)
 create mode 100755 daklib/lists.py

diff --git a/dak/generate_filelist.py b/dak/generate_filelist.py
index c8d51a5..dcf6864 100755
--- a/dak/generate_filelist.py
+++ b/dak/generate_filelist.py
@@ -41,90 +41,7 @@ from daklib.threadpool import ThreadPool
 from daklib import utils
 import apt_pkg, os, stat, sys
 
-def fetch(query, args, session):
-    return [path + filename for (path, filename) in \
-        session.execute(query, args).fetchall()]
-
-def getSources(suite, component, session, timestamp):
-    extra_cond = ""
-    if timestamp:
-        extra_cond = "AND extract(epoch from sa.created) > %d" % timestamp
-    query = """
-        SELECT l.path, f.filename
-            FROM source s
-            JOIN src_associations sa
-                ON s.id = sa.source AND sa.suite = :suite %s
-            JOIN files f
-                ON s.file = f.id
-            JOIN location l
-                ON f.location = l.id AND l.component = :component
-            ORDER BY filename
-    """ % extra_cond
-    args = { 'suite': suite.suite_id,
-             'component': component.component_id }
-    return fetch(query, args, session)
-
-def getBinaries(suite, component, architecture, type, session, timestamp):
-    extra_cond = ""
-    if timestamp:
-        extra_cond = "AND extract(epoch from ba.created) > %d" % timestamp
-    query = """
-CREATE TEMP TABLE b_candidates (
-    source integer,
-    file integer,
-    architecture integer);
-
-INSERT INTO b_candidates (source, file, architecture)
-    SELECT b.source, b.file, b.architecture
-        FROM binaries b
-        JOIN bin_associations ba ON b.id = ba.bin
-        WHERE b.type = :type AND ba.suite = :suite AND
-            b.architecture IN (2, :architecture) %s;
-
-CREATE TEMP TABLE gf_candidates (
-    filename text,
-    path text,
-    architecture integer,
-    src integer,
-    source text);
-
-INSERT INTO gf_candidates (filename, path, architecture, src, source)
-    SELECT f.filename, l.path, bc.architecture, bc.source as src, s.source
-        FROM b_candidates bc
-        JOIN source s ON bc.source = s.id
-        JOIN files f ON bc.file = f.id
-        JOIN location l ON f.location = l.id
-        WHERE l.component = :component;
-
-WITH arch_any AS
-
-    (SELECT path, filename FROM gf_candidates
-        WHERE architecture > 2),
-
-     arch_all_with_any AS
-    (SELECT path, filename FROM gf_candidates
-        WHERE architecture = 2 AND
-              src IN (SELECT src FROM gf_candidates WHERE architecture > 2)),
-
-     arch_all_without_any AS
-    (SELECT path, filename FROM gf_candidates
-        WHERE architecture = 2 AND
-              source NOT IN (SELECT DISTINCT source FROM gf_candidates WHERE architecture > 2)),
-
-     filelist AS
-    (SELECT * FROM arch_any
-    UNION
-    SELECT * FROM arch_all_with_any
-    UNION
-    SELECT * FROM arch_all_without_any)
-
-    SELECT * FROM filelist ORDER BY filename
-    """ % extra_cond
-    args = { 'suite': suite.suite_id,
-             'component': component.component_id,
-             'architecture': architecture.arch_id,
-             'type': type }
-    return fetch(query, args, session)
+from daklib.lists import getSources, getBinaries
 
 def listPath(suite, component, architecture = None, type = None,
         incremental_mode = False):
@@ -152,7 +69,7 @@ def writeSourceList(args):
     (file, timestamp) = listPath(suite, component,
             incremental_mode = incremental_mode)
     session = DBConn().session()
-    for filename in getSources(suite, component, session, timestamp):
+    for _, filename in getSources(suite, component, session, timestamp):
         file.write(filename + '\n')
     session.close()
     file.close()
@@ -162,7 +79,7 @@ def writeBinaryList(args):
     (file, timestamp) = listPath(suite, component, architecture, type,
             incremental_mode)
     session = DBConn().session()
-    for filename in getBinaries(suite, component, architecture, type,
+    for _, filename in getBinaries(suite, component, architecture, type,
             session, timestamp):
         file.write(filename + '\n')
     session.close()
diff --git a/daklib/lists.py b/daklib/lists.py
new file mode 100755
index 0000000..13555e2
--- /dev/null
+++ b/daklib/lists.py
@@ -0,0 +1,127 @@
+#!/usr/bin/python
+
+"""
+Helper functions for list generating commands (Packages, Sources).
+
+@contact: Debian FTP Master <ftpmaster@debian.org>
+@copyright: 2009-2011  Torsten Werner <twerner@debian.org>
+@license: GNU General Public License version 2 or later
+"""
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+################################################################################
+
+def fetch(query, args, session):
+    for (id, path, filename) in session.execute(query, args).fetchall():
+        yield (id, path + filename)
+
+def getSources(suite, component, session, timestamp = None):
+    '''
+    Calculates the sources in suite and component optionally limited by
+    sources newer than timestamp.  Returns a generator that yields a
+    tuple of source id and full pathname to the dsc file. See function
+    writeSourceList() in dak/generate_filelist.py for an example that
+    uses this function.
+    '''
+    extra_cond = ""
+    if timestamp:
+        extra_cond = "AND extract(epoch from sa.created) > %d" % timestamp
+    query = """
+        SELECT s.id, l.path, f.filename
+            FROM source s
+            JOIN src_associations sa
+                ON s.id = sa.source AND sa.suite = :suite %s
+            JOIN files f
+                ON s.file = f.id
+            JOIN location l
+                ON f.location = l.id AND l.component = :component
+            ORDER BY filename
+    """ % extra_cond
+    args = { 'suite': suite.suite_id,
+             'component': component.component_id }
+    return fetch(query, args, session)
+
+def getBinaries(suite, component, architecture, type, session, timestamp = None):
+    '''
+    Calculates the binaries in suite and component of architecture and
+    type 'deb' or 'udeb' optionally limited to binaries newer than
+    timestamp.  Returns a generator that yields a tuple of binary id and
+    full pathname to the u(deb) file. See function writeBinaryList() in
+    dak/generate_filelist.py for an example that uses this function.
+    '''
+    extra_cond = ""
+    if timestamp:
+        extra_cond = "AND extract(epoch from ba.created) > %d" % timestamp
+    query = """
+CREATE TEMP TABLE b_candidates (
+    id integer,
+    source integer,
+    file integer,
+    architecture integer);
+
+INSERT INTO b_candidates (id, source, file, architecture)
+    SELECT b.id, b.source, b.file, b.architecture
+        FROM binaries b
+        JOIN bin_associations ba ON b.id = ba.bin
+        WHERE b.type = :type AND ba.suite = :suite AND
+            b.architecture IN (2, :architecture) %s;
+
+CREATE TEMP TABLE gf_candidates (
+    id integer,
+    filename text,
+    path text,
+    architecture integer,
+    src integer,
+    source text);
+
+INSERT INTO gf_candidates (id, filename, path, architecture, src, source)
+    SELECT bc.id, f.filename, l.path, bc.architecture, bc.source as src, s.source
+        FROM b_candidates bc
+        JOIN source s ON bc.source = s.id
+        JOIN files f ON bc.file = f.id
+        JOIN location l ON f.location = l.id
+        WHERE l.component = :component;
+
+WITH arch_any AS
+
+    (SELECT id, path, filename FROM gf_candidates
+        WHERE architecture > 2),
+
+     arch_all_with_any AS
+    (SELECT id, path, filename FROM gf_candidates
+        WHERE architecture = 2 AND
+              src IN (SELECT src FROM gf_candidates WHERE architecture > 2)),
+
+     arch_all_without_any AS
+    (SELECT id, path, filename FROM gf_candidates
+        WHERE architecture = 2 AND
+              source NOT IN (SELECT DISTINCT source FROM gf_candidates WHERE architecture > 2)),
+
+     filelist AS
+    (SELECT * FROM arch_any
+    UNION
+    SELECT * FROM arch_all_with_any
+    UNION
+    SELECT * FROM arch_all_without_any)
+
+    SELECT * FROM filelist ORDER BY filename
+    """ % extra_cond
+    args = { 'suite': suite.suite_id,
+             'component': component.component_id,
+             'architecture': architecture.arch_id,
+             'type': type }
+    return fetch(query, args, session)
+
-- 
1.7.2.5


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