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

[Ferruh Yigit <ferruh.yigit@intel.com>]

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. If script
finds any error it will print warnings and fails. If  checkpatch
fails commit also fails. This guaranties every commit pass checkpatch.
Default script is <dpdk>/scripts/checkpatch.pl but this can be
changed by RTE_CHECKPATCH environment variable. Also a default list
of checkpatch ignore items defined, new ones can be added by IGNORE
environment variable.
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 copies all
scripts into proper folder. Script names are significant and
shouldn't changed.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
---
 scripts/git-hooks/deploy.sh   | 19 +++++++++++++++++++
 scripts/git-hooks/post-commit | 10 ++++++++++
 scripts/git-hooks/post-merge  | 10 ++++++++++
 scripts/git-hooks/pre-commit  | 44 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100755 scripts/git-hooks/deploy.sh
 create mode 100755 scripts/git-hooks/post-commit
 create mode 100755 scripts/git-hooks/post-merge
 create mode 100755 scripts/git-hooks/pre-commit

diff --git a/scripts/git-hooks/deploy.sh b/scripts/git-hooks/deploy.sh
new file mode 100755
index 0000000..0aa7ffb
--- /dev/null
+++ b/scripts/git-hooks/deploy.sh
@@ -0,0 +1,19 @@
+
+NAME=$(basename $0)
+
+if [ ! -f ${NAME} ]; then
+	echo "Please run script from folder where script is"
+	exit 1
+fi
+
+FILES=$(ls | grep -v ${NAME})
+
+TARGET_FOLDER="../../.git/hooks"
+
+if [ ! -d ${TARGET_FOLDER} ]; then
+	exit 2
+fi
+
+for f in ${FILES}; do
+	cp -i ${f} ${TARGET_FOLDER}/
+done;
diff --git a/scripts/git-hooks/post-commit b/scripts/git-hooks/post-commit
new file mode 100755
index 0000000..2a76f96
--- /dev/null
+++ b/scripts/git-hooks/post-commit
@@ -0,0 +1,10 @@
+#
+# Create docs after each commit
+#
+
+if [ -n "$RTE_DOC_OUT" ]; then
+	OUT_CMD="O=${RTE_DOC_OUT}"
+fi
+
+make ${OUT_CMD} doc-guides-html 2>&1 > /dev/null
+make ${OUT_CMD} doc-api-html 2>&1 > /dev/null
diff --git a/scripts/git-hooks/post-merge b/scripts/git-hooks/post-merge
new file mode 100755
index 0000000..2a76f96
--- /dev/null
+++ b/scripts/git-hooks/post-merge
@@ -0,0 +1,10 @@
+#
+# Create docs after each commit
+#
+
+if [ -n "$RTE_DOC_OUT" ]; then
+	OUT_CMD="O=${RTE_DOC_OUT}"
+fi
+
+make ${OUT_CMD} doc-guides-html 2>&1 > /dev/null
+make ${OUT_CMD} doc-api-html 2>&1 > /dev/null
diff --git a/scripts/git-hooks/pre-commit b/scripts/git-hooks/pre-commit
new file mode 100755
index 0000000..102be73
--- /dev/null
+++ b/scripts/git-hooks/pre-commit
@@ -0,0 +1,44 @@
+#
+# Check patch with checkpatch script before commit
+#
+# If checkpatch fails, commit fails
+#
+# Sample command line can be like:
+# IGNORE="LINUX_VERSION_CODE,VOLATILE" RTE_CHACKPATCH=/linux/scripts/checkpatch.pl git commit
+#
+
+if [ -z "$RTE_CHECKPATCH" ]; then
+	RTE_CHECKPATCH=$PWD/scripts/checkpatch.pl
+fi
+
+if [ ! -x ${RTE_CHECKPATCH} ]; then
+	if [ -f ${RTE_CHECKPATCH} ]; then
+		echo "checkpatch script is not executable: ${RTE_CHECKPATCH}"
+	else
+		echo "checkpatch script not found: ${RTE_CHECKPATCH}"
+	fi
+	exit 2
+fi
+
+IGNORE_DEFAULT="LINUX_VERSION_CODE,\
+FILE_PATH_CHANGES,\
+VOLATILE,\
+PREFER_PACKED,\
+PREFER_ALIGNED,\
+PREFER_PRINTF,\
+PREFER_KERNEL_TYPES,\
+SPLIT_STRING,\
+LINE_SPACING,\
+PARENTHESIS_ALIGNMENT,\
+NETWORKING_BLOCK_COMMENT_STYLE,\
+NEW_TYPEDEFS,\
+COMPLEX_MACRO,\
+COMPARISON_TO_NULL"
+
+IGNORE_CMD="--ignore ${IGNORE_DEFAULT}"
+
+if [ -n "$IGNORE" ]; then
+	IGNORE_CMD="${IGNORE_CMD},${IGNORE}"
+fi
+
+exec git diff --cached | $RTE_CHECKPATCH ${IGNORE_CMD} --no-tree -q -
-- 
2.5.0