4 files changed, 114 insertions, 0 deletions
diff --git a/tools/update-programs/README b/tools/update-programs/README
new file mode 100644
index 0000000000..35de17eb8f
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+++ b/tools/update-programs/README
@@ -0,0 +1,19 @@
+This directory defines a build project for focused work on the "update
+programs": programs owned or maintained by the Install/Update team
+that are standalone binaries (i.e., not part of the Firefox binary
+proper).
+
+To use this build project, prepare a minimal mozconfig with
+```
+ac_add_options --enable-project=tools/update-programs
+```
+
+Depending on the mozconfig options and host and target OS, some of the
+following will be built:
+
+1. the maintenance service (when `--enable-maintenance-service`);
+2. the updater binary (when `MOZ_UPDATER=1`);
+3. the Windows Default Browser Agent (when `--enable-default-browser-agent`);
+
+Packaging the installer and uninstaller is not yet supported: instead,
+use an (artifact) build with `--enable-project=browser`.
diff --git a/tools/update-programs/app.mozbuild b/tools/update-programs/app.mozbuild
new file mode 100644
index 0000000000..330d9b11ec
--- /dev/null
+++ b/tools/update-programs/app.mozbuild
@@ -0,0 +1,61 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+if CONFIG['MOZ_MAINTENANCE_SERVICE'] or \
+   CONFIG['MOZ_UPDATE_AGENT'] or \
+   CONFIG['MOZ_UPDATER']:
+    DIRS += [
+        '/toolkit/mozapps/update/common',
+    ]
+
+if CONFIG['MOZ_DEFAULT_BROWSER_AGENT']:
+    DIRS += [
+        '/toolkit/components/jsoncpp/src/lib_json',
+        '/toolkit/mozapps/defaultagent',
+    ]
+
+if CONFIG['MOZ_MAINTENANCE_SERVICE']:
+    DIRS += [
+        '/toolkit/components/maintenanceservice'
+    ]
+
+if CONFIG['MOZ_UPDATER']:
+    # NSS (and NSPR).
+    DIRS += [
+        '/modules/xz-embedded',
+        '/config/external/nspr',
+        '/config/external/sqlite',
+        '/config/external/zlib',
+        '/memory',
+        '/mfbt',
+        '/mozglue',
+        '/security',
+    ]
+
+    # The signing related bits of libmar depend on NSS.
+    DIRS += [
+        '/modules/libmar',
+        '/other-licenses/bsdiff',
+        '/toolkit/mozapps/update/updater/bspatch',
+        '/toolkit/mozapps/update/updater',
+    ]
+
+# Expose specific non-XPCOM headers when building standalone.
+if not CONFIG['MOZ_UPDATER']:
+    # When building the updater, we build /mozglue, which includes this.
+    EXPORTS.mozilla += [
+        '/mozglue/misc/DynamicallyLinkedFunctionPtr.h',
+    ]
+
+EXPORTS.mozilla += [
+    '/toolkit/xre/CmdLineAndEnvUtils.h',
+    '/widget/windows/WinHeaderOnlyUtils.h',
+]
+
+EXPORTS += [
+    '/xpcom/base/nsAutoRef.h',
+    '/xpcom/base/nsWindowsHelpers.h',
+    '/xpcom/string/nsCharTraits.h',
+    '/xpcom/string/nsUTF8Utils.h',
+]
diff --git a/tools/update-programs/confvars.sh b/tools/update-programs/confvars.sh
new file mode 100644
index 0000000000..66e2a80605
--- /dev/null
+++ b/tools/update-programs/confvars.sh
@@ -0,0 +1,12 @@
+#! /bin/sh
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+MOZ_APP_VENDOR=Mozilla
+
+MOZ_BRANDING_DIRECTORY=browser/branding/unofficial
+MOZ_APP_ID={ec8030f7-c20a-464f-9b0e-13a3a9e97384}
+
+# Build the updater by default.  Use --disable-updater to not.
+MOZ_UPDATER=1
diff --git a/tools/update-programs/moz.configure b/tools/update-programs/moz.configure
new file mode 100644
index 0000000000..2b50751905
--- /dev/null
+++ b/tools/update-programs/moz.configure
@@ -0,0 +1,22 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Spoof a stub of `js/moz.configure` for the included scripts.
+@dependable
+def js_standalone():
+    return False
+
+
+@depends(target)
+def fold_libs(target):
+    return target.os in ("WINNT", "OSX", "Android")
+
+
+set_config("MOZ_FOLD_LIBS", fold_libs)
+
+
+include("../../build/moz.configure/rust.configure")
+include("../../build/moz.configure/nspr.configure")
+include("../../build/moz.configure/nss.configure")
+include("../../build/moz.configure/update-programs.configure")