2026-09-23 15:19:50

PostgreSQL/build_rdbms_01/install_common.sh

@@ -0,0 +1,83 @@
+#!/usr/bin/env bash
+
+set -Eeuo pipefail
+
+die() {
+  printf 'ERROR: %s\n' "$*" >&2
+  exit 1
+}
+
+require_tools() {
+  local tool
+  for tool in "$@"; do
+    command -v "$tool" >/dev/null || die "$tool is required"
+  done
+}
+
+validate_postgresql_version() {
+  local version="$1"
+  [[ "$version" =~ ^[0-9]+\.[0-9]+([.][0-9]+)?$ ]] ||
+    die "invalid PostgreSQL version: $version"
+}
+
+latest_tag() {
+  local repository="$1"
+  local tag
+
+  tag="$(
+    curl -fsSL "https://api.github.com/repos/$repository/releases/latest" |
+      sed -nE 's/^[[:space:]]*"tag_name":[[:space:]]*"([^"]+)".*/\1/p' |
+      head -n 1 || true
+  )"
+  if [[ -n "$tag" ]]; then
+    printf '%s\n' "$tag"
+    return
+  fi
+
+  curl -fsSL "https://api.github.com/repos/$repository/tags?per_page=1" |
+    sed -nE 's/^[[:space:]]*"name":[[:space:]]*"([^"]+)".*/\1/p' |
+    head -n 1 || true
+}
+
+latest_pgaudit_tag() {
+  local repository="$1"
+  local major="$2"
+  local tag
+
+  tag="$(
+    curl -fsSL "https://api.github.com/repos/$repository/tags?per_page=100" |
+      sed -nE 's/^[[:space:]]*"name":[[:space:]]*"([^"]+)".*/\1/p' |
+      grep -E "^${major//./\\.}\." |
+      head -n 1 || true
+  )"
+  printf '%s\n' "${tag:-$(latest_tag "$repository")}"
+}
+
+reset_staging_dir() {
+  local staging_dir="$1"
+  [[ "$staging_dir" != "/" ]] || die "STAGING_DIR must not be the filesystem root"
+  rm -rf -- "$staging_dir"
+  mkdir -p "$staging_dir"
+}
+
+require_postgresql_installation() {
+  local prefix="$1"
+  local pg_config="$prefix/bin/pg_config"
+  [[ "$prefix" != "/" ]] || die "PREFIX must not be the filesystem root"
+  [[ -x "$pg_config" ]] || die "PostgreSQL is not installed at $prefix"
+}
+
+download_source() {
+  local staging_dir="$1"
+  local repository="$2"
+  local tag="$3"
+  local archive_name="$4"
+  local source_dir="$5"
+  local archive="$staging_dir/$archive_name"
+
+  curl -fL --retry 3 --retry-delay 2 \
+    -o "$archive" \
+    "https://github.com/$repository/archive/refs/tags/$tag.tar.gz"
+  tar -xzf "$archive" -C "$staging_dir"
+  [[ -d "$source_dir" ]] || die "source directory was not created: $source_dir"
+}