[PATCH next 2/2] Remove python 2.5'isms

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From: Brandon Casey <drafnel@xxxxxxxxx>

The following python 2.5 features were worked around:

    * the hashlib module was replaced with the sha module
    * the 'any' built-in method was replaced with a 'for' loop
    * a conditional expression was replaced with an 'if' statement
    * the subprocess.check_call method was replaced by a call to
      subprocess.Popen followed by a call to subprocess.wait with a
      check of its return status

These changes allow the python infrastructure to be used with python 2.4
which is distributed with RedHat's RHEL 5, for example.

t5800 was updated to check for python >= 2.4 to reflect these changes.

Signed-off-by: Brandon Casey <casey@xxxxxxxxxxxxxxx>
---
 git-remote-testgit.py               |    9 ++++++---
 git_remote_helpers/git/exporter.py  |    4 +++-
 git_remote_helpers/git/importer.py  |    4 +++-
 git_remote_helpers/git/non_local.py |   16 ++++++++++++----
 git_remote_helpers/git/repo.py      |    9 +++++++--
 t/t5800-remote-helpers.sh           |    4 ++--
 6 files changed, 33 insertions(+), 13 deletions(-)

diff --git a/git-remote-testgit.py b/git-remote-testgit.py
index 9253922..6356d48 100644
--- a/git-remote-testgit.py
+++ b/git-remote-testgit.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 
-import hashlib
+import sha
 import sys
 import os
 sys.path.insert(0, os.getenv("GITPYTHONLIB","."))
@@ -19,7 +19,7 @@ def get_repo(alias, url):
     repo.get_revs()
     repo.get_head()
 
-    hasher = hashlib.sha1()
+    hasher = sha.new()
     hasher.update(repo.path)
     repo.hash = hasher.hexdigest()
 
@@ -133,7 +133,10 @@ def do_export(repo, args):
 
     path = os.path.join(dirname, 'testgit.marks')
     print path
-    print path if os.path.exists(path) else ""
+    if os.path.exists(path):
+        print path
+    else:
+        print ""
     sys.stdout.flush()
 
     update_local_repo(repo)
diff --git a/git_remote_helpers/git/exporter.py b/git_remote_helpers/git/exporter.py
index dfaab00..f40f9d6 100644
--- a/git_remote_helpers/git/exporter.py
+++ b/git_remote_helpers/git/exporter.py
@@ -48,4 +48,6 @@ class GitExporter(object):
 
         args = ["sed", "s_refs/heads/_" + self.repo.prefix + "_g"]
 
-        subprocess.check_call(args, stdin=p1.stdout)
+        child = subprocess.Popen(args, stdin=p1.stdout)
+        if child.wait() != 0:
+            raise CalledProcessError
diff --git a/git_remote_helpers/git/importer.py b/git_remote_helpers/git/importer.py
index af2919d..70a7127 100644
--- a/git_remote_helpers/git/importer.py
+++ b/git_remote_helpers/git/importer.py
@@ -35,4 +35,6 @@ class GitImporter(object):
         if os.path.exists(path):
             args.append("--import-marks=" + path)
 
-        subprocess.check_call(args)
+        child = subprocess.Popen(args)
+        if child.wait() != 0:
+            raise CalledProcessError
diff --git a/git_remote_helpers/git/non_local.py b/git_remote_helpers/git/non_local.py
index d75ef8f..f27389b 100644
--- a/git_remote_helpers/git/non_local.py
+++ b/git_remote_helpers/git/non_local.py
@@ -29,7 +29,9 @@ class NonLocalGit(object):
         os.makedirs(path)
         args = ["git", "clone", "--bare", "--quiet", self.repo.gitpath, path]
 
-        subprocess.check_call(args)
+        child = subprocess.Popen(args)
+        if child.wait() != 0:
+            raise CalledProcessError
 
         return path
 
@@ -43,10 +45,14 @@ class NonLocalGit(object):
             die("could not find repo at %s", path)
 
         args = ["git", "--git-dir=" + path, "fetch", "--quiet", self.repo.gitpath]
-        subprocess.check_call(args)
+        child = subprocess.Popen(args)
+        if child.wait() != 0:
+            raise CalledProcessError
 
         args = ["git", "--git-dir=" + path, "update-ref", "refs/heads/master", "FETCH_HEAD"]
-        subprocess.check_call(args)
+        child = subprocess.Popen(args)
+        if child.wait() != 0:
+            raise CalledProcessError
 
     def push(self, base):
         """Pushes from the non-local repo to base.
@@ -58,4 +64,6 @@ class NonLocalGit(object):
             die("could not find repo at %s", path)
 
         args = ["git", "--git-dir=" + path, "push", "--quiet", self.repo.gitpath]
-        subprocess.check_call(args)
+        child = subprocess.Popen(args)
+        if child.wait() != 0:
+            raise CalledProcessError
diff --git a/git_remote_helpers/git/repo.py b/git_remote_helpers/git/repo.py
index 82d5f78..58e1cdb 100644
--- a/git_remote_helpers/git/repo.py
+++ b/git_remote_helpers/git/repo.py
@@ -19,7 +19,10 @@ def is_remote(url):
 
     prefixes = ["http", "file", "git"]
 
-    return any(url.startswith(i) for i in prefixes)
+    for prefix in prefixes:
+        if url.startswith(prefix):
+            return True
+    return False
 
 class GitRepo(object):
     """Repo object representing a repo.
@@ -50,7 +53,9 @@ class GitRepo(object):
         path = ".cached_revs"
         ofile = open(path, "w")
 
-        subprocess.check_call(args, stdout=ofile)
+        child = subprocess.Popen(args, stdout=ofile)
+        if child.wait() != 0:
+            raise CalledProcessError
         output = open(path).readlines()
         self.revmap = dict(sanitize(i) for i in output)
         if "HEAD" in self.revmap:
diff --git a/t/t5800-remote-helpers.sh b/t/t5800-remote-helpers.sh
index 22c7df4..4ee7b65 100755
--- a/t/t5800-remote-helpers.sh
+++ b/t/t5800-remote-helpers.sh
@@ -9,13 +9,13 @@ test_description='Test remote-helper import and export commands'
 
 if test_have_prereq PYTHON && "$PYTHON_PATH" -c '
 import sys
-if sys.hexversion < 0x02050000:
+if sys.hexversion < 0x02040000:
     sys.exit(1)
 '
 then
 	:
 else
-	say 'skipping git remote-testgit tests: requires Python 2.5 or newer'
+	say 'skipping git remote-testgit tests: requires Python 2.4 or newer'
 	test_done
 fi
 
-- 
1.6.6.2

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