provision: Add support for debian bullseye.

Fixes part of #17863.

docs/development/setup-advanced.md

@@ -14,7 +14,7 @@ If you'd like to install a Zulip development environment on a computer
 that's running one of:
 
 * Ubuntu 20.04 Focal, 18.04 Bionic
-* Debian 10 Buster
+* Debian 10 Buster, 11 Bullseye (beta)
 * CentOS 7 (beta)
 * Fedora 33 (beta)
 * RHEL 7 (beta)

docs/development/setup-vagrant.md

@@ -49,7 +49,7 @@ a proxy to access the internet.)
 - **All**: 2GB available RAM, Active broadband internet connection, [GitHub account][set-up-git].
 - **macOS**: macOS (10.11 El Capitan or newer recommended)
 - **Ubuntu LTS**: 20.04 or 18.04
-  - or **Debian**: 10 "buster"
+  - or **Debian**: 10 "buster" or 11 "bullseye"
 - **Windows**: Windows 64-bit (Win 10 recommended), hardware
   virtualization enabled (VT-x or AMD-V), administrator access.
 

scripts/lib/setup-apt-repo

@@ -67,7 +67,7 @@ deb-src http://apt.postgresql.org/pub/repos/apt/ $release-pgdg main
 deb http://ppa.launchpad.net/groonga/ppa/ubuntu $release main
 deb-src http://ppa.launchpad.net/groonga/ppa/ubuntu $release main
 EOF
-elif [[ "$release" =~ ^(buster)$ ]]; then
+elif [[ "$release" =~ ^(buster|bullseye)$ ]]; then
     distribution=debian
     apt-key add "$SCRIPTS_PATH"/setup/pgdg.asc
     cat >$SOURCES_FILE <<EOF

scripts/lib/setup-apt-repo-ksplice

@@ -56,7 +56,7 @@ apt-get -y install "${pre_setup_deps[@]}"
 SCRIPTS_PATH="$(cd "$(dirname "$(dirname "$0")")" && pwd)"
 
 release=$(lsb_release -sc)
-if [[ "$release" =~ ^(buster|bionic|cosmic|disco|eoan|focal|groovy)$ ]]; then
+if [[ "$release" =~ ^(buster|bullseye|bionic|cosmic|disco|eoan|focal|groovy)$ ]]; then
     apt-key add "$SCRIPTS_PATH"/setup/ksplice.asc
     cat >$SOURCES_FILE <<EOF
 deb http://www.ksplice.com/apt $release ksplice

scripts/lib/zulip_tools.py

@@ -425,6 +425,11 @@ def parse_os_release() -> Dict[str, str]:
                 continue
             k, v = line.split("=", 1)
             [distro_info[k]] = shlex.split(v)
+    if distro_info["PRETTY_NAME"] == "Debian GNU/Linux bullseye/sid":
+        # This hack can be removed once bullseye releases and reports
+        # its VERSION_ID in /etc/os-release.
+        distro_info["VERSION_CODENAME"] = "bullseye"
+        distro_info["VERSION_ID"] = "11"
     return distro_info
 
 

tools/lib/provision.py

@@ -97,6 +97,8 @@ vendor = distro_info["ID"]
 os_version = distro_info["VERSION_ID"]
 if vendor == "debian" and os_version == "10":  # buster
     POSTGRESQL_VERSION = "11"
+elif vendor == "debian" and os_version == "11":  # bullseye
+    POSTGRESQL_VERSION = "13"
 elif vendor == "ubuntu" and os_version in ["18.04", "18.10"]:  # bionic, cosmic
     POSTGRESQL_VERSION = "10"
 elif vendor == "ubuntu" and os_version in ["19.04", "19.10"]:  # disco, eoan
@@ -197,8 +199,17 @@ if vendor == "debian" and os_version in [] or vendor == "ubuntu" and os_version
         *VENV_DEPENDENCIES,
     ]
 elif "debian" in os_families():
+    DEBIAN_DEPENDECIES = UBUNTU_COMMON_APT_DEPENDENCIES
+    # The below condition is required since libappindicator is
+    # not available for bullseye (sid). "libgroonga1" is an
+    # additional depedency for postgresql-13-pgdg-pgroonga.
+    #
+    # See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=895037
+    if distro_info["VERSION_CODENAME"] == "bullseye":
+        DEBIAN_DEPENDECIES.remove("libappindicator1")
+        DEBIAN_DEPENDECIES.append("libgroonga0")
     SYSTEM_DEPENDENCIES = [
-        *UBUNTU_COMMON_APT_DEPENDENCIES,
+        *DEBIAN_DEPENDECIES,
         f"postgresql-{POSTGRESQL_VERSION}",
         f"postgresql-{POSTGRESQL_VERSION}-pgdg-pgroonga",
         *VENV_DEPENDENCIES,