Refactor common openocd flash script.

Makefile

@@ -47,14 +47,6 @@ clock_stm32:
 	--strip=never \
 	//clock:clock
 
-clock_stm32_flash:
-	bazel run \
-	--crosstool_top=@stm32//tools/arm_compiler:toolchain \
-	--cpu=armeabi-v7a-m4 \
-	--define TARGET=stm32f411 \
-	//clock/scripts:discovery_flash
-
-
 clock_stm32_breakout:
 	bazel run \
 	--crosstool_top=@stm32//tools/arm_compiler:toolchain \

clock/scripts/BUILD

@@ -1,27 +1,8 @@
-sh_binary(
-    name = "discovery_flash",
-    srcs = [
-        "discovery_flash.sh"
-    ],
-    data = [
-        "//clock:clock_flash_artifact"
-    ],
-    args = [
-        "/usr/share/openocd/scripts/board/stm32f4discovery.cfg",
-        "$(location //clock:clock_flash_artifact)"
-    ]
-)
+load("//tools/scripts:openocd.bzl", "openocd_flash")
 
-sh_binary(
+openocd_flash(
     name = "breakout_flash",
-    srcs = [
-        "breakout_flash.sh"
-    ],
-    data = [
-        "//clock:clock_flash_artifact"
-    ],
-    args = [
-        "/usr/share/openocd/scripts/target/stm32l1.cfg",
-        "$(location //clock:clock_flash_artifact)"
-    ]
+    artifact = "//clock:clock_flash_artifact",
+    target = "/usr/share/openocd/scripts/target/stm32l1.cfg"
 )
+

tools/scripts/BUILD

@@ -0,0 +1 @@
+exports_files(["openocd_flash.sh"])

tools/scripts/openocd.bzl

@@ -0,0 +1,14 @@
+def openocd_flash(name, artifact, target):
+    native.sh_binary(
+        name = "{}".format(name),
+        srcs = [
+            "//tools/scripts:openocd_flash.sh"
+        ],
+        data = [
+            artifact
+        ],
+        args = [
+            target,
+            "$(location {})".format(artifact)
+        ]
+    )