[dpdk-dev] [PATCH v2] scripts: add git hook scripts for checkpatch and auto doc generation

[Ferruh Yigit]

These scripts are to automate some common tasks, scripts needs
to be deployed to specific folder to become active.

Scripts:
post-commit: Triggers after commit complete, re-generates api and
guides html documents. "RTE_DOC_OUT" environment variable configures
document output folder. Same script can be used on server side with
name "post-update", so documentation can auto updated after each push
to server.

post-merge: Same script as "post-commit", but triggered after git pull

pre-commit: Does a checkpatch check before commit started. This script
relies on scripts/checkpatches.sh script. checkpathes.sh should be
running well to use this git hook script.
This script can bypassed by commit "--no-verify" argument.

Deployment:
To make scripts active they need to be in <dpdk>/.git/hooks folder.
Alternatively "deploy.sh" script can be used, it simply links all
scripts into proper folder. Script names are significant and
shouldn't changed.

Signed-off-by: Ferruh Yigit <ferruh.yigit at intel.com>
---
 scripts/checkpatches.sh       |  1 +
 scripts/git-hooks/deploy.sh   | 20 ++++++++++++++++++++
 scripts/git-hooks/post-commit | 10 ++++++++++
 scripts/git-hooks/post-merge  |  1 +
 scripts/git-hooks/pre-commit  | 17 +++++++++++++++++
 5 files changed, 49 insertions(+)
 create mode 100755 scripts/git-hooks/deploy.sh
 create mode 100755 scripts/git-hooks/post-commit
 create mode 120000 scripts/git-hooks/post-merge
 create mode 100755 scripts/git-hooks/pre-commit

diff --git a/scripts/checkpatches.sh b/scripts/checkpatches.sh
index afc611b..8192514 100755
--- a/scripts/checkpatches.sh
+++ b/scripts/checkpatches.sh
@@ -43,6 +43,7 @@ length=${DPDK_CHECKPATCH_LINE_LENGTH:-80}
 
 # override default Linux options
 options="--no-tree"
+options="$options ${GIT_HOOK_OPTIONS}"
 options="$options --max-line-length=$length"
 options="$options --show-types"
 options="$options --ignore=LINUX_VERSION_CODE,FILE_PATH_CHANGES,\
diff --git a/scripts/git-hooks/deploy.sh b/scripts/git-hooks/deploy.sh
new file mode 100755
index 0000000..070fb6e
--- /dev/null
+++ b/scripts/git-hooks/deploy.sh
@@ -0,0 +1,20 @@
+
+SELF=$(basename $0)
+
+if [ ! -f ${SELF} ]; then
+	echo "Please run script from folder where script is"
+	exit 1
+fi
+
+FILES=$(ls | grep -v ${SELF})
+
+TARGET_FOLDER="../../.git/hooks"
+SCRIPT_FOLDER="../../scripts/git-hooks"
+
+if [ ! -d ${TARGET_FOLDER} ]; then
+	exit 2
+fi
+
+for f in ${FILES}; do
+	ln -sf ${SCRIPT_FOLDER}/${f} ${TARGET_FOLDER}/${f}
+done;
diff --git a/scripts/git-hooks/post-commit b/scripts/git-hooks/post-commit
new file mode 100755
index 0000000..2a76f96
--- /dev/null
+++ b/scripts/git-hooks/post-commit
@@ -0,0 +1,10 @@
+#
+# Create docs after each commit
+#
+
+if [ -n "$RTE_DOC_OUT" ]; then
+	OUT_CMD="O=${RTE_DOC_OUT}"
+fi
+
+make ${OUT_CMD} doc-guides-html 2>&1 > /dev/null
+make ${OUT_CMD} doc-api-html 2>&1 > /dev/null
diff --git a/scripts/git-hooks/post-merge b/scripts/git-hooks/post-merge
new file mode 120000
index 0000000..ace4560
--- /dev/null
+++ b/scripts/git-hooks/post-merge
@@ -0,0 +1 @@
+post-commit
\ No newline at end of file
diff --git a/scripts/git-hooks/pre-commit b/scripts/git-hooks/pre-commit
new file mode 100755
index 0000000..c46b27d
--- /dev/null
+++ b/scripts/git-hooks/pre-commit
@@ -0,0 +1,17 @@
+#
+# Check patch with checkpatch script before commit
+#
+# If checkpatch fails, commit fails
+#
+# Relies on scripts/checkpathes.sh script as checkpatch.pl wrapper
+#
+# If "git commit" called with "--no-verify" option, pre-commit hooks
+# bypassed and this script not called, checkpatch bypassed
+#
+
+RTE_CHECKPATCH=$PWD/scripts/checkpatches.sh
+PATCH=/tmp/dpdk-git-auto-checkpatch-$$.patch
+export GIT_HOOK_OPTIONS=--no-signoff
+
+git diff --cached > ${PATCH}
+exec ${RTE_CHECKPATCH} ${PATCH}
-- 
2.5.0