Convert prefer-rebase to update.

diff --git a/cbas/update b/cbas/update
index 9e1bf09..c12e8ef 100755 (executable)
--- a/cbas/update
+++ b/cbas/update
@@ -1,4 +1,9 @@
 #!/bin/sh
 
-. /srv/git/hooks/server/update-no-rewind
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+/srv/git/hooks/server/update-no-rewind "$refname" "$oldrev" "$newrev" &&
+/srv/git/hooks/server/update-prefer-rebase "$refname" "$oldrev" "$newrev"
 

diff --git a/server/pre-receive-prefer-rebase b/server/pre-receive-prefer-rebase
deleted file mode 100644 (file)
index 423f253..0000000
--- a/server/pre-receive-prefer-rebase
+++ /dev/null
@@ -1,67 +0,0 @@
-#!/bin/sh
-
-while read oldrev newrev refname ; do
-       if expr "$oldrev" : '0*$' >/dev/null ; then
-               exit 0
-       fi
-
-       # If they are introducing non-merge commits /and/ merge commits, it could
-       # look like one of two ways. This way:
-       #
-       # * --- B --- * --- oldrev
-       #        \             \
-       #        new --- new --- newrev
-       #
-       # They basically had an un-shared local dev branch (probably by making a
-       # merge) and instead should have done a rebase. Also, if they did:
-       #
-       # * --- B --- * --- oldrev
-       #        \             \
-       #        new --- new --- new -- newrev
-       #
-       # We should try and catch them--where the merge happened previously to
-       # them doing more work in the newrev commit.
-       #
-       # But if it looks like:
-       #
-       # * --- B --- * --- oldrev
-       #        \              \
-       #        old --- new --- newrev
-       #
-       # Then they had a pre-shared branch that cannot be rebased and so they
-       # were correct in doing a merge to tie "old" and "oldrev" together.
-       #
-       # Also, we obviously have to be okay with:
-       #
-       # * --- * --- * --- oldrev --- new --- new --- newrev
-
-       git rev-parse --not --branches | grep -v $(git rev-parse $refname) | git rev-list --stdin $oldrev..$newrev | while read commit ; do
-               number_of_parents=$(git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit | wc -l)
-               if [[ $number_of_parents > 1 ]] ; then
-                       # Find the original branch point (B)
-                       parents=$(git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit)
-                       baserev=$(git merge-base $parents)
-
-                       # For each parent
-                       git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit | while read parent ; do
-                               all_commits=$(git rev-list $baserev..$parent | wc -l)
-                               new_commits=$(git rev-parse --not --branches | git rev-list --stdin $baserev..$parent | wc -l)
-                               if [[ $all_commits -eq $new_commits ]] ; then
-                                       echo "----------------------------------------------------"
-                                       echo
-                                       echo "It looks like you should rebase instead of merging $commit"
-                                       echo
-                                       echo "----------------------------------------------------"
-                                       exit 1
-                               fi
-                       done
-                       if [ $? -ne 0 ] ; then
-                               exit 1
-                       fi
-               fi
-       done
-       if [ $? -ne 0 ] ; then
-               exit 1
-       fi
-done
-

diff --git a/server/update-prefer-rebase b/server/update-prefer-rebase
new file mode 100644 (file)
index 0000000..f46f5f2
--- /dev/null
+++ b/server/update-prefer-rebase
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+# Command line
+refname="$1"
+oldrev="$2"
+newrev="$3"
+
+if expr "$oldrev" : '0*$' >/dev/null ; then
+       exit 0
+fi
+
+git rev-parse --not --branches | git rev-list --stdin $oldrev..$newrev | while read commit ; do
+       number_of_parents=$(git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit | wc -l)
+       if [[ $number_of_parents > 1 ]] ; then
+               # Find the original branch point (B)
+               parents=$(git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit)
+               baserev=$(git merge-base $parents)
+
+               # For each parent
+               git rev-list -n 1 --parents $commit | sed 's/ /\n/g' | grep -v $commit | while read parent ; do
+                       all_commits=$(git rev-list $baserev..$parent | wc -l)
+                       new_commits=$(git rev-parse --not --branches | git rev-list --stdin $baserev..$parent | wc -l)
+                       if [[ $all_commits -eq $new_commits ]] ; then
+                               echo "----------------------------------------------------"
+                               echo
+                               echo "It looks like you should rebase instead of merging $commit"
+                               echo
+                               echo "----------------------------------------------------"
+                               exit 1
+                       fi
+               done
+               if [ $? -ne 0 ] ; then
+                       exit 1
+               fi
+       fi
+done
+

diff --git a/tests/t2300-server-pre-receive-prefer-rebase.sh b/tests/t2300-server-pre-receive-prefer-rebase.sh
deleted file mode 100644 (file)
index e13d155..0000000
--- a/tests/t2300-server-pre-receive-prefer-rebase.sh
+++ /dev/null
@@ -1,111 +0,0 @@
-#!/bin/sh
-
-test_description='server pre-receive prefer rebase'
-
-. ./test-lib.sh
-
-test_expect_success 'setup' '
-       echo "setup" >a &&
-       git add a &&
-       git commit -m "setup" &&
-       git clone ./. server &&
-       rm -fr server/.git/hooks &&
-       git remote add origin ./server &&
-       git config --add branch.master.remote origin &&
-       git config --add branch.master.merge refs/heads/master &&
-       git fetch
-'
-
-install_server_hook 'pre-receive-prefer-rebase' 'pre-receive'
-
-test_expect_success 'all local changes do not need a merge' '
-       # server is on "setup"
-
-       # make an outstanding change for us--but do not push
-       echo "$test_name" >a.client1 &&
-       git add a.client1 &&
-       git commit -m "$test_name on client1" &&
-
-       # have another client commit (in this case, it is the server, but close enough)
-       cd server &&
-       echo "$test_name" >a.client2 &&
-       git add a.client2 &&
-       git commit -m "$test_name on client2" &&
-
-       # go back to our client and it will merge in our changes
-       cd .. &&
-       git pull &&
-       merge=$(git rev-parse HEAD) &&
-
-       ! git push 2>push.err &&
-       cat push.err | grep "It looks like you should rebase instead of merging $merge" &&
-       git reset --hard origin/master
-'
-
-test_expect_success 'all local changes do not need a merge even with more commits after' '
-       # server is on "setup"
-
-       # make an outstanding change for us--but do not push
-       echo "$test_name" >a.client1 &&
-       git add a.client1 &&
-       git commit -m "$test_name on client1" &&
-
-       # have another client commit (in this case, it is the server, but close enough)
-       cd server &&
-       echo "$test_name" >a.client2 &&
-       git add a.client2 &&
-       git commit -m "$test_name on client2" &&
-
-       # go back to our client and it will merge in our changes
-       cd .. &&
-       git pull &&
-       merge=$(git rev-parse HEAD) &&
-
-       # To complicate things, have them add another change
-       echo "$test_name again" >a.client1 &&
-       git commit -a -m "$test_name on client1 again" &&
-
-       ! git push 2>push.err &&
-       cat push.err | grep "It looks like you should rebase instead of merging $merge" &&
-       git reset --hard origin/master
-'
-
-test_expect_success 'already shared topic changes do warrant a merge' '
-       # server is on "setup"
-
-       # make a change on topic for us and share it
-       git checkout -b topic master &&
-       echo "$test_name" >a.client1 &&
-       git add a.client1 &&
-       git commit -m "$test_name on client1 and topic" &&
-       git push origin topic &&
-
-       # make an outstanding change that we will have to merge later
-       echo "$test_name again" >>a.client1 &&
-       git commit -a -m "$test_name on client1 and topic again" &&
-
-       # have another client commit to master (in this case, it is the server, but close enough)
-       cd server &&
-       echo "$test_name" >a.client2 &&
-       git add a.client2 &&
-       git commit -m "$test_name on client2" &&
-
-       # go back to our client and it will merge in our changes
-       cd .. &&
-       git checkout master &&
-       git pull &&
-       git merge topic &&
-
-       git push
-'
-
-test_expect_success 'simple commit' '
-       # go back to topic and make a simple commit/push as a sanity check
-       git checkout topic &&
-       echo "$test_name" >>a.client1 &&
-       git commit -a -m "$test_name on client1 and topic" &&
-       git push
-'
-
-test_done
-

diff --git a/tests/t2300-server-update-prefer-rebase.sh b/tests/t2300-server-update-prefer-rebase.sh
new file mode 100644 (file)
index 0000000..4e9d4fa
--- /dev/null
+++ b/tests/t2300-server-update-prefer-rebase.sh
@@ -0,0 +1,111 @@
+#!/bin/sh
+
+test_description='server update prefer rebase'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+       echo "setup" >a &&
+       git add a &&
+       git commit -m "setup" &&
+       git clone ./. server &&
+       rm -fr server/.git/hooks &&
+       git remote add origin ./server &&
+       git config --add branch.master.remote origin &&
+       git config --add branch.master.merge refs/heads/master &&
+       git fetch
+'
+
+install_server_hook 'update-prefer-rebase' 'update'
+
+test_expect_success 'all local changes do not need a merge' '
+       # server is on "setup"
+
+       # make an outstanding change for us--but do not push
+       echo "$test_name" >a.client1 &&
+       git add a.client1 &&
+       git commit -m "$test_name on client1" &&
+
+       # have another client commit (in this case, it is the server, but close enough)
+       cd server &&
+       echo "$test_name" >a.client2 &&
+       git add a.client2 &&
+       git commit -m "$test_name on client2" &&
+
+       # go back to our client and it will merge in our changes
+       cd .. &&
+       git pull &&
+       merge=$(git rev-parse HEAD) &&
+
+       ! git push 2>push.err &&
+       cat push.err | grep "It looks like you should rebase instead of merging $merge" &&
+       git reset --hard origin/master
+'
+
+test_expect_success 'all local changes do not need a merge even with more commits after' '
+       # server is on "setup"
+
+       # make an outstanding change for us--but do not push
+       echo "$test_name" >a.client1 &&
+       git add a.client1 &&
+       git commit -m "$test_name on client1" &&
+
+       # have another client commit (in this case, it is the server, but close enough)
+       cd server &&
+       echo "$test_name" >a.client2 &&
+       git add a.client2 &&
+       git commit -m "$test_name on client2" &&
+
+       # go back to our client and it will merge in our changes
+       cd .. &&
+       git pull &&
+       merge=$(git rev-parse HEAD) &&
+
+       # To complicate things, have them add another change
+       echo "$test_name again" >a.client1 &&
+       git commit -a -m "$test_name on client1 again" &&
+
+       ! git push 2>push.err &&
+       cat push.err | grep "It looks like you should rebase instead of merging $merge" &&
+       git reset --hard origin/master
+'
+
+test_expect_success 'already shared topic changes do warrant a merge' '
+       # server is on "setup"
+
+       # make a change on topic for us and share it
+       git checkout -b topic master &&
+       echo "$test_name" >a.client1 &&
+       git add a.client1 &&
+       git commit -m "$test_name on client1 and topic" &&
+       git push origin topic &&
+
+       # make an outstanding change that we will have to merge later
+       echo "$test_name again" >>a.client1 &&
+       git commit -a -m "$test_name on client1 and topic again" &&
+
+       # have another client commit to master (in this case, it is the server, but close enough)
+       cd server &&
+       echo "$test_name" >a.client2 &&
+       git add a.client2 &&
+       git commit -m "$test_name on client2" &&
+
+       # go back to our client and it will merge in our changes
+       cd .. &&
+       git checkout master &&
+       git pull &&
+       git merge topic &&
+
+       git push
+'
+
+test_expect_success 'simple commit' '
+       # go back to topic and make a simple commit/push as a sanity check
+       git checkout topic &&
+       echo "$test_name" >>a.client1 &&
+       git commit -a -m "$test_name on client1 and topic" &&
+       git push
+'
+
+test_done
+