From c179a2b45bfc350db0c43dc9b7d2f707e7572080 Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Wed, 4 Nov 2020 14:02:08 +1000
Subject: [PATCH] extract version from defs.bzl; gate buildhash on optimized
 build

---
 .bazelrc             |  2 --
 BUILD.bazel          | 21 +++++++++++++++++++--
 scripts/BUILD.bazel  |  7 +++++++
 scripts/buildinfo.py | 23 +++++++++++++++++++++++
 scripts/status.sh    |  7 +------
 5 files changed, 50 insertions(+), 10 deletions(-)
 create mode 100644 scripts/BUILD.bazel
 create mode 100644 scripts/buildinfo.py

diff --git a/.bazelrc b/.bazelrc
index fe585947c..eadbb9fb9 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -1,7 +1,5 @@
 common --enable_platform_specific_config
 common --experimental_repository_cache_hardlinks
-#common --symlink_prefix=.bazel/
-#common --experimental_no_product_name_out_symlink
 
 # specify python path on Windows for pyo3 compile
 build:windows --action_env="PYTHON_SYS_EXECUTABLE=c:\\python\\python.exe"
diff --git a/BUILD.bazel b/BUILD.bazel
index f23816c95..41dce3e70 100644
--- a/BUILD.bazel
+++ b/BUILD.bazel
@@ -1,8 +1,22 @@
+config_setting(
+    name = "release",
+    values = {
+        "compilation_mode": "opt",
+    },
+)
+
 genrule(
-    name = "buildinfo_gen",
+    name = "buildinfo",
+    srcs = ["//:defs.bzl"],
     outs = ["buildinfo.txt"],
-    cmd = "grep STABLE_ bazel-out/stable-status.txt > $@",
+    cmd = select({
+        "release": "$(location //scripts:buildinfo) $(location //:defs.bzl) bazel-out/stable-status.txt release > $@",
+        "//conditions:default": "$(location //scripts:buildinfo) $(location //:defs.bzl) bazel-out/stable-status.txt devel > $@",
+    }),
     stamp = 1,
+    tools = [
+        "//scripts:buildinfo",
+    ],
     visibility = ["//visibility:public"],
 )
 
@@ -11,3 +25,6 @@ alias(
     actual = "//ts:tsconfig.json",
     visibility = ["//visibility:public"],
 )
+
+# for version info
+exports_files(["defs.bzl"])
diff --git a/scripts/BUILD.bazel b/scripts/BUILD.bazel
new file mode 100644
index 000000000..464420f10
--- /dev/null
+++ b/scripts/BUILD.bazel
@@ -0,0 +1,7 @@
+py_binary(
+    name = "buildinfo",
+    srcs = ["buildinfo.py"],
+    data = ["//:defs.bzl"],
+    stamp = 1,
+    visibility = ["//visibility:public"],
+)
diff --git a/scripts/buildinfo.py b/scripts/buildinfo.py
new file mode 100644
index 000000000..61ee66336
--- /dev/null
+++ b/scripts/buildinfo.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+
+import re
+import sys
+
+defs_file = sys.argv[1]
+stamp_file = sys.argv[2]
+release_mode = sys.argv[3] == "release"
+
+version_re = re.compile('anki_version = "(.*)"')
+
+# extract version number from defs.bzl
+for line in open(defs_file).readlines():
+    if ver := version_re.match(line):
+        print(f"STABLE_VERSION {ver.group(1)}")
+
+for line in open(stamp_file).readlines():
+    if line.startswith("STABLE_BUILDHASH"):
+        if release_mode:
+            print(line.strip())
+        else:
+            # if not in release mode, map buildhash to a consistent value
+            print("STABLE_BUILDHASH dev")
diff --git a/scripts/status.sh b/scripts/status.sh
index d6aaaab1f..e02172a2a 100755
--- a/scripts/status.sh
+++ b/scripts/status.sh
@@ -1,8 +1,3 @@
 #!/bin/bash
 
-echo "STABLE_VERSION 2.1.36"
-if [ "$ANKI_RELEASE" != "" ]; then
-    echo "STABLE_BUILDHASH $(git rev-parse --short=8 HEAD || echo nogit)"
-else
-    echo "STABLE_BUILDHASH dev"
-fi
+echo "STABLE_BUILDHASH $(git rev-parse --short=8 HEAD || echo nogit)"