Embed IANA time zone database for clean environments

.github/workflows/ci-bats-unix.yaml

@@ -25,6 +25,17 @@ jobs:
     env:
       use_credentials: ${{ secrets.AWS_SECRET_ACCESS_KEY != '' && secrets.AWS_ACCESS_KEY_ID != '' }}
     steps:
+      # Docker entrypoint and docker tests in general may use more space than is available in the GitHub default runner,
+      # so we remove unused pre-installed programs.
+      - name: Free disk space
+        run: |
+          NAME="DISK-CLEANUP"
+          echo "[${NAME}] Starting background cleanup..."
+          [ -d /usr/share/dotnet ] && sudo rm -rf /usr/share/dotnet &
+          [ -d /usr/local/lib/android ] && sudo rm -rf /usr/local/lib/android &
+          [ -d /opt/ghc ] && sudo rm -rf /opt/ghc &
+          [ -d /usr/local/share/boost ] && sudo rm -rf /usr/local/share/boost &
+
       - name: Conditionally Set ENV VARS for AWS tests
         run: |
           if [[ $use_credentials == true ]]; then

go/utils/publishrelease/buildindocker.sh

@@ -107,7 +107,7 @@ for tuple in $OS_ARCH_TUPLES; do
       go build \
         $GO_BUILD_FLAGS \
         -ldflags="${platform_go_ldflags[${tuple}]}" \
-        -tags icu_static \
+        -tags="icu_static,timetzdata" \
         -trimpath \
         -o "$o/bin/$obin" "./cmd/$bin/"
   done

integration-tests/bats/tzdata.bats

@@ -0,0 +1,74 @@
+#!/usr/bin/env bats
+
+# tzdata.bats requires a Docker container in order to test an environment with no Go time zone database information is
+# available. This includes the Unix file system information, which we remove in our tzdataDockerfile. You can find all
+# locations and properties in the tests below in the documentation links.
+load "$BATS_TEST_DIRNAME"/helper/common.bash
+
+TEST_NAME="dolt-tzdata"
+TEST_IMAGE="$TEST_NAME:bookworm-slim"
+
+setup_file() {
+    WORKSPACE_ROOT=$(cd "$BATS_TEST_DIRNAME/../../.." && pwd)
+    export WORKSPACE_ROOT
+
+    docker build -f "$BATS_TEST_DIRNAME/tzdataDockerfile" -t "$TEST_IMAGE" "$WORKSPACE_ROOT"
+}
+
+# The 'c' prefixes avoid conflicts with binaries on the local bats runner machine. The normal binaries are still
+# available for normal tests for when time zone tables are added.
+csh() {
+    docker exec -i "$TEST_CONTAINER" sh -lc "$@"
+}
+
+cdolt() {
+    docker exec -i -w "$DOLT_REPOSITORY" "$TEST_CONTAINER" dolt "$@"
+}
+
+dolt1791() {
+    docker exec -i -w "$DOLT_REPOSITORY" "$TEST_CONTAINER" dolt1791 "$@"
+}
+
+setup() {
+    export TEST_CONTAINER="${TEST_NAME}-$$"
+    export DOLT_REPOSITORY="/var/lib/dolt/tzdata"
+
+    docker run -d --name "$TEST_CONTAINER" "$TEST_IMAGE" sh -lc 'sleep infinity' >/dev/null
+
+    csh "set -eu
+rm -rf $DOLT_REPOSITORY
+mkdir -p $DOLT_REPOSITORY
+cd $DOLT_REPOSITORY
+dolt config --global --add user.email 'bats@email.fake'
+dolt config --global --add user.name 'Bats Tests'
+dolt init"
+}
+
+teardown() {
+    docker rm -f "$TEST_CONTAINER" >/dev/null 2>&1
+}
+
+# bats test_tags=no_lambda
+@test "tzdata: the docker environment has no time zone database" {
+    run dolt1791 sql -q "SELECT CONVERT_TZ('2023-01-01 12:00:00','UTC','America/New_York') AS iana_ok;"
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "iana_ok" ]] || false
+    [[ "$output" =~ "NULL" ]] || false
+}
+
+# bats test_tags=no_lambda
+@test "tzdata: source build works without time zone database" {
+    # See https://pkg.go.dev/time#LoadLocation for IANA database locations checked. Here want to see Dolt always embed
+    # the IANA database for environments without it (otherwise NULL is returned).
+    run cdolt sql -q "SELECT CONVERT_TZ('2023-01-01 12:00:00','UTC','America/New_York') AS iana_ok;"
+    [ "$status" -eq 0 ]
+    [[ "$output" =~ "iana_ok" ]] || false
+    [[ "$output" =~ '2023-01-01 07:00:00' ]] || false
+    [[ "$output" != *NULL* ]] || false
+
+    run cdolt sql -r csv -q "SELECT
+  CONVERT_TZ('2007-03-11 2:00:00','US/Eastern','US/Central') AS time1,
+  CONVERT_TZ('2007-03-11 3:00:00','US/Eastern','US/Central') AS time2;"
+    [[ "$output" =~ "time1,time2" ]] || false
+    [[ "$output" =~ "2007-03-11 01:00:00,2007-03-11 02:00:00" ]] || false
+}

integration-tests/bats/tzdataDockerfile

@@ -0,0 +1,31 @@
+#syntax=docker/dockerfile:1.3
+FROM golang:1.25-trixie AS smoke-binary
+RUN apt-get update -y && apt-get install -y libicu-dev
+
+# latest version that does not have timetzdata tag: https://pkg.go.dev/time/tzdata
+RUN curl -L "https://github.com/dolthub/dolt/releases/download/v1.79.1/install.sh" | bash
+RUN mkdir /tmp/bin/ && mv /usr/local/bin/dolt* /tmp/bin/dolt1791
+
+# trixie is the ver. used by the release workflow
+FROM golang:1.25-trixie AS source-binary
+# buildindocker script expects absolute dir /src/
+COPY dolt/go/go.mod /src/
+WORKDIR /src/
+RUN go mod download
+
+COPY dolt/go/ .
+ENV OS_ARCH_TUPLES=linux-amd64
+RUN chmod +x utils/publishrelease/buildindocker.sh && utils/publishrelease/buildindocker.sh
+
+FROM debian:bookworm-slim
+RUN apt-get update -y && apt-get install -y libicu-dev && rm -rf /var/lib/apt/lists/*;
+RUN rm -rf /usr/share/zoneinfo
+
+COPY --from=smoke-binary /tmp/bin/dolt1791 /usr/local/bin/dolt1791
+COPY --from=source-binary /src/out/dolt-linux-amd64/bin/dolt /usr/local/bin/dolt
+RUN /usr/local/bin/dolt version
+
+VOLUME /var/lib/dolt
+EXPOSE 3306 33060 7007
+WORKDIR /var/lib/dolt
+