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-rwxr-xr-xtemplates/hooks--pre-push.sample18
-rwxr-xr-xtemplates/hooks--push-to-checkout.sample78
-rwxr-xr-xtemplates/hooks--update.sample2
3 files changed, 88 insertions, 10 deletions
diff --git a/templates/hooks--pre-push.sample b/templates/hooks--pre-push.sample
index 6187dbf439..4ce688d32b 100755
--- a/templates/hooks--pre-push.sample
+++ b/templates/hooks--pre-push.sample
@@ -14,7 +14,7 @@
# Information about the commits which are being pushed is supplied as lines to
# the standard input in the form:
#
-# <local ref> <local sha1> <remote ref> <remote sha1>
+# <local ref> <local oid> <remote ref> <remote oid>
#
# This sample shows how to prevent push of commits where the log message starts
# with "WIP" (work in progress).
@@ -22,27 +22,27 @@
remote="$1"
url="$2"
-z40=0000000000000000000000000000000000000000
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
-while read local_ref local_sha remote_ref remote_sha
+while read local_ref local_oid remote_ref remote_oid
do
- if [ "$local_sha" = $z40 ]
+ if test "$local_oid" = "$zero"
then
# Handle delete
:
else
- if [ "$remote_sha" = $z40 ]
+ if test "$remote_oid" = "$zero"
then
# New branch, examine all commits
- range="$local_sha"
+ range="$local_oid"
else
# Update to existing branch, examine new commits
- range="$remote_sha..$local_sha"
+ range="$remote_oid..$local_oid"
fi
# Check for WIP commit
- commit=`git rev-list -n 1 --grep '^WIP' "$range"`
- if [ -n "$commit" ]
+ commit=$(git rev-list -n 1 --grep '^WIP' "$range")
+ if test -n "$commit"
then
echo >&2 "Found WIP commit in $local_ref, not pushing"
exit 1
diff --git a/templates/hooks--push-to-checkout.sample b/templates/hooks--push-to-checkout.sample
new file mode 100755
index 0000000000..af5a0c0018
--- /dev/null
+++ b/templates/hooks--push-to-checkout.sample
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+# An example hook script to update a checked-out tree on a git push.
+#
+# This hook is invoked by git-receive-pack(1) when it reacts to git
+# push and updates reference(s) in its repository, and when the push
+# tries to update the branch that is currently checked out and the
+# receive.denyCurrentBranch configuration variable is set to
+# updateInstead.
+#
+# By default, such a push is refused if the working tree and the index
+# of the remote repository has any difference from the currently
+# checked out commit; when both the working tree and the index match
+# the current commit, they are updated to match the newly pushed tip
+# of the branch. This hook is to be used to override the default
+# behaviour; however the code below reimplements the default behaviour
+# as a starting point for convenient modification.
+#
+# The hook receives the commit with which the tip of the current
+# branch is going to be updated:
+commit=$1
+
+# It can exit with a non-zero status to refuse the push (when it does
+# so, it must not modify the index or the working tree).
+die () {
+ echo >&2 "$*"
+ exit 1
+}
+
+# Or it can make any necessary changes to the working tree and to the
+# index to bring them to the desired state when the tip of the current
+# branch is updated to the new commit, and exit with a zero status.
+#
+# For example, the hook can simply run git read-tree -u -m HEAD "$1"
+# in order to emulate git fetch that is run in the reverse direction
+# with git push, as the two-tree form of git read-tree -u -m is
+# essentially the same as git switch or git checkout that switches
+# branches while keeping the local changes in the working tree that do
+# not interfere with the difference between the branches.
+
+# The below is a more-or-less exact translation to shell of the C code
+# for the default behaviour for git's push-to-checkout hook defined in
+# the push_to_deploy() function in builtin/receive-pack.c.
+#
+# Note that the hook will be executed from the repository directory,
+# not from the working tree, so if you want to perform operations on
+# the working tree, you will have to adapt your code accordingly, e.g.
+# by adding "cd .." or using relative paths.
+
+if ! git update-index -q --ignore-submodules --refresh
+then
+ die "Up-to-date check failed"
+fi
+
+if ! git diff-files --quiet --ignore-submodules --
+then
+ die "Working directory has unstaged changes"
+fi
+
+# This is a rough translation of:
+#
+# head_has_history() ? "HEAD" : EMPTY_TREE_SHA1_HEX
+if git cat-file -e HEAD 2>/dev/null
+then
+ head=HEAD
+else
+ head=$(git hash-object -t tree --stdin </dev/null)
+fi
+
+if ! git diff-index --quiet --cached --ignore-submodules $head --
+then
+ die "Working directory has staged changes"
+fi
+
+if ! git read-tree -u -m "$commit"
+then
+ die "Could not update working tree to new HEAD"
+fi
diff --git a/templates/hooks--update.sample b/templates/hooks--update.sample
index 5014c4b31c..c4d426bc6e 100755
--- a/templates/hooks--update.sample
+++ b/templates/hooks--update.sample
@@ -60,7 +60,7 @@ esac
# --- Check types
# if $newrev is 0000...0000, it's a commit to delete a ref.
-zero="0000000000000000000000000000000000000000"
+zero=$(git hash-object --stdin </dev/null | tr '[0-9a-f]' '0')
if [ "$newrev" = "$zero" ]; then
newrev_type=delete
else