Add script to easily run CI jobs locally

.gitignore

@@ -1,3 +1,3 @@
-build/
+build*/
 .ycm_extra_conf.py
 *.tinyrefl

ci/ci.sh

@@ -2,7 +2,7 @@
 set -e
 
 if [[ -z "$SOURCE_DIR" ]]; then
-    SOURCE_DIR=".."
+    SOURCE_DIR=`pwd`
 fi
 
 if [[ -z "$LLVM_VERSION" ]]; then
@@ -13,12 +13,22 @@ if [[ -z "$GENERATOR" ]]; then
     GENERATOR=Ninja
 fi
 
-mkdir build && cd build
+if [[ -z "$BUILD_DIR" ]]; then
+    BUILD_DIR=$SOURCE_DIR/build_${CI_JOB_NAME}_${HOSTNAME}
+fi
 
 echo Cross building: $CROSS_BUILDING
 echo Source dir: $SOURCE_DIR
 echo LLVM version: $LLVM_VERSION
 echo Generator: $GENERATOR
+echo Build directory: $BUILD_DIR
+
+if [[ "$CLEAN_BUILD" == "YES" ]]; then
+    echo Cleaning up old build tree...
+    rm -rf $BUILD_DIR
+fi
+
+mkdir -p $BUILD_DIR && cd $BUILD_DIR
 
 if [ "$CROSS_BUILDING" == "YES" ]; then
     toolchain="-DCMAKE_TOOLCHAIN_FILE=/usr/share/toolchain.cmake"

ci/run_job.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# Full path to the ci/ directory, where this script is located
+CI_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null && pwd )"
+SRC_DIR=$CI_DIR/..
+cd $CI_DIR
+
+JOB_NAME=$1
+OPTION=$2
+IMAGE_VARIABLE=${JOB_NAME//-/_}__image
+LLVM_VERSION_VARIABLE=${JOB_NAME//-/_}__variables__LLVM_VERSION
+CROSS_BUILDING_VARIABLE=${JOB_NAME//-/_}__variables__CROSS_BUILDING
+
+
+# Parse Giltab-ci config file
+source yaml.sh
+create_variables $SRC_DIR/.gitlab-ci.yml
+
+IMAGE=${!IMAGE_VARIABLE}
+LLVM_VERSION=${!LLVM_VERSION_VARIABLE}
+LLVM_VERSION=${LLVM_VERSION//\"/}
+CROSS_BUILDING=${!CROSS_BUILDING_VARIABLE}
+CROSS_BUILDING=${CROSS_BUILDING//\"/}
+
+if [[ -z "$IMAGE" ]]; then
+    >&2 echo No valid ci job named \"$JOB_NAME\" found
+    exit 1
+fi
+
+if [[ ! -z "$CROSS_BUILDING" ]]; then
+    CROSS_BUILDING_FLAG="-e CROSS_BUILDING=$CROSS_BUILDING"
+fi
+
+if [[ "$OPTION" == "--clean-build" ]]; then
+    CLEAN_BUILD_FLAG="-e CLEAN_BUILD=YES"
+elif [[ "$OPTION" == "--help" ]]; then
+    echo run_job <job-name> [option]
+    echo " "
+    echo   option:
+    echo     --clean-build : Clean buildtree before build
+    echo     --help : Show this help
+    exit
+fi
+
+if [[ -z "$LLVM_VERSION" ]]; then
+    >&2 echo LLVM_VERSION variable not set in job $JOB_NAME
+    exit 2
+fi
+
+echo Running job $JOB_NAME
+echo Using docker image $IMAGE
+echo CROSS_BUILDING=$CROSS_BUILDING
+echo LLVM_VERSION=$LLVM_VERSION
+
+docker run -ti --rm --hostname $JOB_NAME -v $SRC_DIR:/repo -w /repo -e CI_JOB_NAME=$JOB_NAME -e LLVM_VERSION=$LLVM_VERSION $CROSS_BUILDING_FLAG $CLEAN_BUILD_FLAG $IMAGE bash -c "./ci/ci.sh"

ci/yaml.sh

@@ -0,0 +1,50 @@
+#!/bin/bash
+
+# Based on https://gist.github.com/pkuczynski/8665367
+
+function parse_yaml() {
+    local yaml_file=$1
+    local prefix=$2
+    local s
+    local w
+    local fs
+
+    s='[[:space:]]*'
+    w='[a-zA-Z0-9_.-]*'
+    fs="$(echo @|tr @ '\034')"
+
+    (
+        sed -ne '/^--/s|--||g; s|\"|\\\"|g; s/\s*$//g;' \
+            -e "/#.*[\"\']/!s| #.*||g; /^#/s|#.*||g;" \
+            -e  "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
+            -e "s|^\($s\)\($w\)$s[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" |
+
+        awk -F"$fs" '{
+            indent = length($1)/2;
+            if (length($2) == 0) { conj[indent]="+";} else {conj[indent]="";}
+            vname[indent] = $2;
+            for (i in vname) {if (i > indent) {delete vname[i]}}
+                if (length($3) > 0) {
+                    vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
+                    printf("%s%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, conj[indent-1],$3);
+                }
+            }' |
+
+        sed -e 's/_=/+=/g' |
+        awk 'BEGIN {
+                 FS="=";
+                 OFS="="
+             }
+             /(-|\.).*=/ {
+                 gsub("-|\\.", "_", $1)
+             }
+             { print }'
+
+    ) < "$yaml_file"
+}
+
+function create_variables() {
+    local yaml_file="$1"
+    eval "$(parse_yaml "$yaml_file")"
+}
+