Add public kos32-export-env-vars

.gitea/workflows/build.yaml

@@ -142,7 +142,7 @@ jobs:
       - name: (en_US) Build KolibriOS
         run: |
           export PATH=/home/autobuild/tools/win32/bin:$PATH
-          source kos32-export-env-vars ${{ gitea.workspace }}
+          source "${{ gitea.workspace }}/.gitea/workflows/kos32-export-env-vars" "${{ gitea.workspace }}"
           tup build-en_US
 
       - name: (en_US) Upload floppy image
@@ -167,7 +167,7 @@ jobs:
       - name: (ru_RU) Build KolibriOS
         run: |
           export PATH=/home/autobuild/tools/win32/bin:$PATH
-          source kos32-export-env-vars ${{ gitea.workspace }}
+          source "${{ gitea.workspace }}/.gitea/workflows/kos32-export-env-vars" "${{ gitea.workspace }}"
           tup build-ru_RU
 
       - name: (ru_RU) Upload floppy image
@@ -192,7 +192,7 @@ jobs:
       - name: (es_ES) Build KolibriOS
         run: |
           export PATH=/home/autobuild/tools/win32/bin:$PATH
-          source kos32-export-env-vars ${{ gitea.workspace }}
+          source "${{ gitea.workspace }}/.gitea/workflows/kos32-export-env-vars" "${{ gitea.workspace }}"
           tup build-es_ES
 
       - name: (es_ES) Upload floppy image

.gitea/workflows/kos32-export-env-vars

@@ -0,0 +1,76 @@
+#!/usr/bin/env bash
+
+# SPDX-License-Identifier: GPL-2.0-only
+# SPDX-FileCopyrightText: 2025 KolibriOS team
+
+_kos32_export_env_vars() {
+    local repo_root prev_pwd cmtid latest_tag offset
+
+    repo_root="${1:-}"
+    if [ -z "${repo_root}" ]; then
+        echo "kos32-export-env-vars: repository path argument is required" >&2
+        return 1
+    fi
+
+    if [ ! -d "${repo_root}" ]; then
+        echo "kos32-export-env-vars: path does not exist: ${repo_root}" >&2
+        return 1
+    fi
+
+    if ! command -v git >/dev/null 2>&1; then
+        echo "kos32-export-env-vars: git is required but not found in PATH" >&2
+        return 1
+    fi
+
+    if ! git -C "${repo_root}" rev-parse --is-inside-work-tree >/dev/null 2>&1; then
+        echo "kos32-export-env-vars: not a git repository: ${repo_root}" >&2
+        return 1
+    fi
+
+    prev_pwd="${PWD}"
+    if ! cd "${repo_root}"; then
+        echo "kos32-export-env-vars: unable to enter repository: ${repo_root}" >&2
+        return 1
+    fi
+
+    cmtid="$(git rev-parse --short=8 HEAD 2>/dev/null)" || {
+        cd "${prev_pwd}" || true
+        echo "kos32-export-env-vars: failed to resolve HEAD commit id" >&2
+        return 1
+    }
+    if ! printf '%s' "${cmtid}" | grep -Eq '^[0-9a-fA-F]{8}$'; then
+        cd "${prev_pwd}" || true
+        echo "kos32-export-env-vars: unexpected commit id format: ${cmtid}" >&2
+        return 1
+    fi
+
+    latest_tag="$(git describe --tags --abbrev=0 2>/dev/null || true)"
+    if [ -n "${latest_tag}" ]; then
+        offset="$(git rev-list --count "${latest_tag}..HEAD" 2>/dev/null)" || {
+            cd "${prev_pwd}" || true
+            echo "kos32-export-env-vars: failed to compute commit offset from tag ${latest_tag}" >&2
+            return 1
+        }
+    else
+        offset="0"
+    fi
+    if ! printf '%s' "${offset}" | grep -Eq '^[0-9]+$'; then
+        cd "${prev_pwd}" || true
+        echo "kos32-export-env-vars: unexpected commit offset format: ${offset}" >&2
+        return 1
+    fi
+
+    if ! cd "${prev_pwd}"; then
+        echo "kos32-export-env-vars: failed to restore previous working directory: ${prev_pwd}" >&2
+        return 1
+    fi
+
+    export KOLIBRIOS_BUILD_CMTID="0x$(printf '%s' "${cmtid}" | tr '[:upper:]' '[:lower:]')"
+    export KOLIBRIOS_BUILD_OFFSET="${offset}"
+    if [ -z "${KOLIBRIOS_BUILD_DBGTAG+x}" ] || [ -z "${KOLIBRIOS_BUILD_DBGTAG}" ]; then
+        export KOLIBRIOS_BUILD_DBGTAG=0
+    fi
+}
+
+_kos32_export_env_vars "${1:-}" || return 1 2>/dev/null || exit 1
+unset -f _kos32_export_env_vars