Adding git hooks

2 files changed, 110 insertions, 0 deletions

diff --git a/hooks/pre-commit.hook b/hooks/pre-commit.hook
new file mode 100644
index 0000000..34dd510
--- /dev/null
+++ b/hooks/pre-commit.hook
@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# Check that the code follows a consistant code style
+#
+ 
+# FIXME : Add a check for existence of indent, and return 0 if not present
+ 
+echo "--Checking style--"
+for file in `git-diff-index --name-only HEAD | grep "\.c$"` ; do
+tempfoo=`basename $0`
+    newfile=`mktemp /tmp/${tempfoo}.XXXXXX` || exit 1
+    indent \
+	--braces-on-if-line \
+	--case-brace-indentation0 \
+	--case-indentation2 \
+	--braces-after-struct-decl-line \
+	--line-length80 \
+	--no-tabs \
+	--cuddle-else \
+	--dont-line-up-parentheses \
+	--continuation-indentation4 \
+	--honour-newlines \
+	--tab-size8 \
+	--indent-level2 \
+	$file -o $newfile 2>> /dev/null
+    diff -u -p "${file}" "${newfile}"
+    r=$?
+    rm "${newfile}"
+    if [ $r != 0 ] ; then
+echo "Code style error in $file, please fix before commiting."
+        exit 1
+    fi
+done
+echo "--Checking style pass--"
diff --git a/hooks/pre-receive.hook b/hooks/pre-receive.hook
new file mode 100644
index 0000000..8ddcd87
--- /dev/null
+++ b/hooks/pre-receive.hook
@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+import sys
+import os
+import subprocess
+
+# This server-side pre-receive hook is to be put and activated in all modules
+# that depend on the common submodule.
+#
+# It will check whether any modifications to the common 'submodule file' has a
+# a valid commit SHA1 that exists in the common module.
+
+def commit_exists(sha1, gitdir):
+    """Returns True if the sha1 is a valid commit in the given
+    git directory"""
+    # FIXME: We're using git-show for the time being, but there's a small
+    # risk that there might be a valid SHA1 for a non-commit object.
+    env = os.environ.copy()
+    env["GIT_DIR"] = gitdir
+    sub = subprocess.Popen(["git", "show", sha1], env=env,
+                           stdout=subprocess.PIPE,
+                           stderr=subprocess.PIPE)
+    while True:
+        res = sub.poll()
+        if res != None:
+            return res == 0
+
+# location of the common git module
+COMMON_GIT_DIR = "/git/gstreamer/common.git"
+
+pushvalid = True
+
+print "=> Checking for integrity of common submodule changes"
+print
+
+for line in sys.stdin.readlines():
+    # ref is the ref to be modified
+    # old is the old commit it was pointing to
+    # new is the new commit it was pointing to
+    old, new, ref = line.split(' ', 2)
+
+    # 1. Get the latest change to common (if there was any changes)
+    sub = subprocess.Popen(["git-diff", "%s..%s" % (old, new, ), "--", "common"],
+                           stdout=subprocess.PIPE)
+    stdout, stderr = sub.communicate()
+    if stdout != "":
+        # Format of submodule special files
+        # Subproject commit <SHA1>
+
+        # we get a diff, therefore only grab the last line
+        lastline = stdout.strip().rsplit('\n',1)[-1]
+        if not lastline.startswith("+Subproject commit"):
+            # this is bad, it means the diff has changed to something completely
+            # different
+            continue
+        subsha1 = lastline.rsplit(' ', 1)[-1]
+        print "   Pack wants common to point to", subsha1
+        if not commit_exists(subsha1, COMMON_GIT_DIR):
+            print "   /!\\ Commit does not exist in common git module /!\\"
+            print "   /!\\ for ref", ref
+            pushvalid = False
+            break
+
+        # 2. Figure out if that commit exists in the common submodule
+        # (use GIT_DIR to execute commands in that directory)
+
+if pushvalid:
+    print "   Incoming packet valid, proceeding to actual commit"
+    sys.exit(0)
+else:
+    print "   Attempting to push commits containing modifications to common"
+    print "   that have not been commited to the actuall common module."
+    print
+    print "   First push your changes to common/ before pushing the changes"
+    print "   to the module using it."
+    sys.exit(-1)
+