1 files changed, 134 insertions, 0 deletions
diff --git a/scripts/lib/devtool/import.py b/scripts/lib/devtool/import.py
new file mode 100644
index 0000000000..6829851669
--- /dev/null
+++ b/scripts/lib/devtool/import.py
@@ -0,0 +1,134 @@
+# Development tool - import command plugin
+#
+# Copyright (C) 2014-2017 Intel Corporation
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
+"""Devtool import plugin"""
+
+import os
+import tarfile
+import logging
+import collections
+import json
+import fnmatch
+
+from devtool import standard, setup_tinfoil, replace_from_file, DevtoolError
+from devtool import export
+
+logger = logging.getLogger('devtool')
+
+def devimport(args, config, basepath, workspace):
+    """Entry point for the devtool 'import' subcommand"""
+
+    def get_pn(name):
+        """ Returns the filename of a workspace recipe/append"""
+        metadata = name.split('/')[-1]
+        fn, _ = os.path.splitext(metadata)
+        return fn
+
+    if not os.path.exists(args.file):
+        raise DevtoolError('Tar archive %s does not exist. Export your workspace using "devtool export"' % args.file)
+
+    with tarfile.open(args.file) as tar:
+        # Get exported metadata
+        export_workspace_path = export_workspace = None
+        try:
+            metadata = tar.getmember(export.metadata)
+        except KeyError as ke:
+            raise DevtoolError('The export metadata file created by "devtool export" was not found. "devtool import" can only be used to import tar archives created by "devtool export".')
+
+        tar.extract(metadata)
+        with open(metadata.name) as fdm:
+            export_workspace_path, export_workspace = json.load(fdm)
+        os.unlink(metadata.name)
+
+        members = tar.getmembers()
+
+        # Get appends and recipes from the exported archive, these
+        # will be needed to find out those appends without corresponding
+        # recipe pair
+        append_fns, recipe_fns = set(), set()
+        for member in members:
+            if member.name.startswith('appends'):
+                append_fns.add(get_pn(member.name))
+            elif member.name.startswith('recipes'):
+                recipe_fns.add(get_pn(member.name))
+
+        # Setup tinfoil, get required data and shutdown
+        tinfoil = setup_tinfoil(config_only=False, basepath=basepath)
+        try:
+            current_fns = [os.path.basename(recipe[0]) for recipe in tinfoil.cooker.recipecaches[''].pkg_fn.items()]
+        finally:
+            tinfoil.shutdown()
+
+        # Find those appends that do not have recipes in current metadata
+        non_importables = []
+        for fn in append_fns - recipe_fns:
+            # Check on current metadata (covering those layers indicated in bblayers.conf)
+            for current_fn in current_fns:
+                if fnmatch.fnmatch(current_fn, '*' + fn.replace('%', '') + '*'):
+                    break
+            else:
+                non_importables.append(fn)
+                logger.warning('No recipe to append %s.bbapppend, skipping' % fn)
+
+        # Extract
+        imported = []
+        for member in members:
+            if member.name == export.metadata:
+                continue
+
+            for nonimp in non_importables:
+                pn = nonimp.split('_')[0]
+                # do not extract data from non-importable recipes or metadata
+                if member.name.startswith('appends/%s' % nonimp) or \
+                        member.name.startswith('recipes/%s' % nonimp) or \
+                        member.name.startswith('sources/%s' % pn):
+                    break
+            else:
+                path = os.path.join(config.workspace_path, member.name)
+                if os.path.exists(path):
+                    # by default, no file overwrite is done unless -o is given by the user
+                    if args.overwrite:
+                        try:
+                            tar.extract(member, path=config.workspace_path)
+                        except PermissionError as pe:
+                            logger.warning(pe)
+                    else:
+                        logger.warning('File already present. Use --overwrite/-o to overwrite it: %s' % member.name)
+                        continue
+                else:
+                    tar.extract(member, path=config.workspace_path)
+
+                # Update EXTERNALSRC and the devtool md5 file
+                if member.name.startswith('appends'):
+                    if export_workspace_path:
+                        # appends created by 'devtool modify' just need to update the workspace
+                        replace_from_file(path, export_workspace_path, config.workspace_path)
+
+                        # appends created by 'devtool add' need replacement of exported source tree
+                        pn = get_pn(member.name).split('_')[0]
+                        exported_srctree = export_workspace[pn]['srctree']
+                        if exported_srctree:
+                            replace_from_file(path, exported_srctree, os.path.join(config.workspace_path, 'sources', pn))
+
+                    standard._add_md5(config, pn, path)
+                    imported.append(pn)
+
+    if imported:
+        logger.info('Imported recipes into workspace %s: %s' % (config.workspace_path, ', '.join(imported)))
+    else:
+        logger.warning('No recipes imported into the workspace')
+
+    return 0
+
+def register_commands(subparsers, context):
+    """Register devtool import subcommands"""
+    parser = subparsers.add_parser('import',
+                                   help='Import exported tar archive into workspace',
+                                   description='Import tar archive previously created by "devtool export" into workspace',
+                                   group='advanced')
+    parser.add_argument('file', metavar='FILE', help='Name of the tar archive to import')
+    parser.add_argument('--overwrite', '-o', action="store_true", help='Overwrite files when extracting')
+    parser.set_defaults(func=devimport)