Sync eng/common directory with azure-sdk-tools repository

eng/common/pipelines/templates/steps/mashup-doc-index.yml

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+parameters: 
+  TargetFolder: ''
+
+steps:
+  - task: PythonScript@0
+    displayName: MashUp Generated Index Site so its served from default site location
+    inputs:
+      scriptSource: inline
+      script: |
+        import argparse
+        import os
+        import logging
+        import re
+        import shutil
+        from io import open
+
+        SITE_INDEX = r'${{ parameters.SourceDirectory }}\docfx_project\_site'
+        TOC_HTML_REGEX = r"\.\./toc.html"
+        NAV_TOC_HTML_REGEX = r"api/"
+        PREV_DIR_REGEX = r"\.\./"
+
+        def locate_htmlfiles(directory):
+            html_set = []
+            for root, dirs, files in os.walk(directory):
+                for file in files:
+                    html_set.append(os.path.join(root, file))
+            return html_set
+
+        def process_html(content):
+            content = re.sub(TOC_HTML_REGEX, 'navtoc.html', content)
+            content = re.sub(PREV_DIR_REGEX, '', content)
+            return content
+
+        def process_navtoc(content):
+            content = re.sub(NAV_TOC_HTML_REGEX, '', content)
+            return content
+
+        if __name__ == "__main__":
+            html_files = locate_htmlfiles(os.path.join(SITE_INDEX, 'api'))
+            navtoc_location = os.path.join(SITE_INDEX, 'toc.html')
+
+            # Process the main toc.html and rename it to navtoc.html
+            try:
+                logging.info(
+                    "Process {}.".format(navtoc_location)
+                )
+                with open(navtoc_location, "r", encoding="utf8") as navtoc_stream:
+                    navtoc_content = navtoc_stream.read()
+                new_navtoc_content = process_navtoc(navtoc_content)
+                logging.info("Process {}.".format(navtoc_content))
+                with open(navtoc_location, "w", encoding="utf8") as html_stream:
+                    html_stream.write(new_navtoc_content)
+            except Exception as e:
+                logging.error(e)
+                exit(1)
+
+            # Rename main toc.html to navtoc.html
+            os.rename(navtoc_location, os.path.join(SITE_INDEX, 'navtoc.html'))
+
+            # Process all html in api directory
+            for html_location in html_files:
+                try:
+                    logging.info(
+                        "Process {}.".format(html_location)
+                    )
+                    with open(html_location, "r", encoding="utf8") as html_stream:
+                        html_content = html_stream.read()
+                    new_content = process_html(html_content)
+                    logging.info("Process {}.".format(html_location))
+                    with open(html_location, "w", encoding="utf8") as html_stream:
+                        html_stream.write(new_content)
+                except Exception as e:
+                    logging.error(e)
+                    exit(1)
+
+            # Move all files from api to main site home directory
+            for html_location in html_files:
+                shutil.copy(html_location, SITE_INDEX)
+
+            # Delete API Directory
+            shutil.rmtree(os.path.join(SITE_INDEX, 'api'))

eng/common/pipelines/templates/steps/replace-relative-links.yml

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+parameters: 
+  TargetFolder: ''
+  RootFolder: ''
+  BuildSHA: ''
+  RepoId: ''
+
+steps:
+  - task: PythonScript@0
+    displayName: Replace Relative Readme Links with Absolute References
+    inputs:
+      scriptSource: inline
+      script: |
+        import argparse
+        import sys
+        import os
+        import logging
+        import glob
+        import re
+        import fnmatch
+        from io import open
+        try:
+            from pathlib import Path
+        except:
+            from pathlib2 import Path
+
+        # This script is intended to be run against a single folder. All readme.md files (regardless of casing) will have the relative links
+        # updated with appropriate full reference links. This is a recursive update..
+
+        logging.getLogger().setLevel(logging.INFO)
+
+        RELATIVE_LINK_REPLACEMENT_SYNTAX = (
+            "https://github.com/{repo_id}/tree/{build_sha}/{target_resource_path}"
+        )
+
+        LINK_DISCOVERY_REGEX = r"\[([^\]]*)\]\(([^)]+)\)"
+        PREDEFINED_LINK_DISCOVERY_REGEX = r"(\[[^\]]+]\:)\s*([^\s]+)"
+
+        IMAGE_FILE_EXTENSIONS = ['.jpeg', '.jpg', '.png', '.gif', '.tiff']
+        RELATIVE_LINK_REPLACEMENT_SYNTAX_FOR_IMAGE = (
+            "https://github.com/{repo_id}/raw/{build_sha}/{target_resource_path}"
+        )
+
+        def locate_readmes(directory):
+            readme_set = []
+
+            for root, dirs, files in os.walk(directory):
+                for file in files:
+                    if file.lower() == "readme.md":
+                        readme_set.append(os.path.join(root, file))
+            return readme_set
+
+
+        def is_relative_link(link_value, readme_location):
+            link_without_location = link_value
+            if link_without_location.find('#') > 0:
+                link_without_location = link_without_location[0:link_without_location.find('#')]
+
+            try:
+                return os.path.exists(
+                    os.path.abspath(os.path.join(os.path.dirname(readme_location), link_without_location))
+                )
+            except:
+                return False
+
+
+        def replace_relative_link(match, readme_location, root_folder, build_sha, repo_id):
+            link_path = match.group(2).strip()
+
+            if is_relative_link(link_path, readme_location):
+                # if it is a relative reference, we need to find the path from the root of the repository
+                resource_absolute_path = os.path.abspath(
+                    os.path.join(os.path.dirname(readme_location), link_path)
+                )
+                placement_from_root = os.path.relpath(resource_absolute_path, root_folder)
+
+                suffix = Path(placement_from_root).suffix
+                if (suffix in IMAGE_FILE_EXTENSIONS):
+                    updated_link = RELATIVE_LINK_REPLACEMENT_SYNTAX_FOR_IMAGE.format(
+                        repo_id=repo_id,
+                        build_sha=build_sha,
+                        target_resource_path=placement_from_root,
+                    ).replace("\\", "/")
+                else:
+                    updated_link = RELATIVE_LINK_REPLACEMENT_SYNTAX.format(
+                        repo_id=repo_id,
+                        build_sha=build_sha,
+                        target_resource_path=placement_from_root,
+                    ).replace("\\", "/")
+
+                return "[{}]({})".format(match.group(1), updated_link)
+            else:
+                return match.group(0)
+
+        def replace_prefined_relative_links(match, readme_location, root_folder, build_sha, repo_id):
+            link_path = match.group(2).strip()
+
+            if is_relative_link(link_path, readme_location):
+                # if it is a relative reference, we need to find the path from the root of the repository
+                resource_absolute_path = os.path.abspath(
+                    os.path.join(os.path.dirname(readme_location), link_path)
+                )
+                placement_from_root = os.path.relpath(resource_absolute_path, root_folder)
+
+                suffix = Path(placement_from_root).suffix
+                if (suffix in IMAGE_FILE_EXTENSIONS):
+                    updated_link = RELATIVE_LINK_REPLACEMENT_SYNTAX_FOR_IMAGE.format(
+                        repo_id=repo_id,
+                        build_sha=build_sha,
+                        target_resource_path=placement_from_root,
+                    ).replace("\\", "/")
+                else:
+                    updated_link = RELATIVE_LINK_REPLACEMENT_SYNTAX.format(
+                        repo_id=repo_id,
+                        build_sha=build_sha,
+                        target_resource_path=placement_from_root,
+                    ).replace("\\", "/")
+
+                return "{} {}".format(match.group(1), updated_link)
+            else:
+                return match.group(0)
+
+
+        def transfer_content_to_absolute_references(
+            root_folder, build_sha, repo_id, readme_location, content
+        ):
+            content = re.sub(
+                LINK_DISCOVERY_REGEX,
+                lambda match, readme_location=readme_location, root_folder=root_folder, build_sha=build_sha, repo_id=repo_id: replace_relative_link(
+                    match, readme_location, root_folder, build_sha, repo_id
+                ),
+                content,
+            )
+
+            content = re.sub(
+                PREDEFINED_LINK_DISCOVERY_REGEX,
+                lambda match, readme_location=readme_location, root_folder=root_folder, build_sha=build_sha, repo_id=repo_id: replace_prefined_relative_links(
+                    match, readme_location, root_folder, build_sha, repo_id
+                ),
+                content,
+            )
+
+            return content
+
+
+        if __name__ == "__main__":
+            parser = argparse.ArgumentParser(
+                description="Replaces relative links for any README.md under the target folder. Given any discovered relative link, will replace with the provided repoId and SHA. Case insensitive"
+            )
+
+            parser.add_argument(
+                "-t",
+                "--target",
+                dest="target_folder",
+                help="The target folder that contains a README ",
+                default="${{ parameters.TargetFolder }}",
+            )
+
+            parser.add_argument(
+                "-i",
+                "--repoid",
+                dest="repo_id",
+                help='The target repository used as the base for the path replacement. Full Id, example: "Azure/azure-sdk-for-net"',
+                default="${{ parameters.RepoId }}",
+            )
+
+            parser.add_argument(
+                "-r",
+                "--root",
+                dest="root_folder",
+                help="The root directory of the repository. This gives us the ability to rationalize links in situations where a relative link traverses UPWARDS from the readme.",
+                default="${{ parameters.RootFolder }}",
+            )
+
+            parser.add_argument(
+                "-s",
+                "--sha",
+                dest="build_sha",
+                help="The commit hash associated with this change. Using this will mean that links will never be broken.",
+                default="${{ parameters.BuildSHA }}",
+            )
+
+            args = parser.parse_args()
+
+            logging.info("Root Folder: {}".format(args.root_folder))
+            logging.info("Target Folder: {}".format(args.target_folder))
+            logging.info("Repository Id: {}".format(args.repo_id))
+            logging.info("Build SHA: {}".format(args.build_sha))
+
+            readme_files = locate_readmes(args.target_folder)
+
+            for readme_location in readme_files:
+                try:
+                    logging.info(
+                        "Running Relative Link Replacement on {}.".format(readme_location)
+                    )
+
+                    with open(readme_location, "r", encoding="utf-8") as readme_stream:
+                        readme_content = readme_stream.read()
+
+                    new_content = transfer_content_to_absolute_references(
+                        args.root_folder,
+                        args.build_sha,
+                        args.repo_id,
+                        readme_location,
+                        readme_content,
+                    )
+
+                    with open(readme_location, "w", encoding="utf-8") as readme_stream:
+                        readme_stream.write(new_content)
+
+                except Exception as e:
+                    logging.error(e)
+                    exit(1)
+
+  - script: |
+        git diff -U0
+    displayName: Highlight Readme Updates

eng/common/pipelines/templates/steps/verify-path-length.yml

@@ -0,0 +1,59 @@
+# Template for all Python Scripts in this repository
+parameters: 
+  SourceDirectory: ''
+  BasePathLength: 49
+
+steps:
+  - task: PythonScript@0
+    displayName: Analyze Path Lengths
+    inputs:
+      scriptSource: inline
+      script: |
+        # Verifies Length of file path for all files in the SourceDirectory.
+        # File paths and directory paths must be less than 260 and 248 characters respectively on windows OS
+        # Repo users get a limited number of characters for the repo clone path. As Specified by the BasePathLength parameter.
+        # Script makes sure that paths in the repo are less than 260 and 248 for files and directories respectively after adding the BasePathLength.
+        import os
+        import sys
+
+        source_directory = r'${{ parameters.SourceDirectory }}'
+        longest_file_path = ''
+        longest_file_path_length = 0
+        longest_dir_path = ''
+        longest_dir_path_length = 0
+        break_switch = False
+        long_file_paths = []
+        long_dir_paths = []
+
+        def pluralize(string, plural_string, count):
+            return plural_string if count > 1 else string
+
+        print('Analyzing length of paths...')
+        for root, dirs, files in os.walk('{0}'.format(source_directory)):
+            for file in files:
+                file_path = os.path.relpath(os.path.join(root, file), source_directory)
+                if ((len(file_path) + ${{ parameters.BasePathLength }}) > longest_file_path_length):
+                    longest_file_path_length = len(file_path) + ${{ parameters.BasePathLength }}
+                    longest_file_path = file_path
+                    if (longest_file_path_length >= 260):
+                        long_file_paths.append(longest_file_path)
+                dir_path = os.path.relpath(root, source_directory)
+                if ((len(dir_path) + ${{ parameters.BasePathLength }}) > longest_dir_path_length):
+                    longest_dir_path_length = len(dir_path) + ${{ parameters.BasePathLength }}
+                    longest_dir_path = dir_path
+                    if (longest_dir_path_length >= 248):
+                        long_dir_paths.append(longest_dir_path)
+
+        if (len(long_file_paths) > 0):
+            print('With a base path length of {0} the following file path{1} exceed the allow path length of 260 characters'.format(${{ parameters.BasePathLength }}, pluralize('', 's', len(long_file_paths))))
+            print(*long_file_paths, sep = "\n")
+            break_switch = True
+
+        if (len(long_dir_paths) > 0):
+            print('With a base path length of {0} the following directory path{1} exceed the allow path length of 248 characters'.format(${{ parameters.BasePathLength }}, pluralize('', 's', len(long_dir_paths))))
+            print(*long_dir_paths, sep = "\n")
+            break_switch = True
+
+        if break_switch == True:
+            print("Some file paths are too long. Please reduce path lengths")
+            exit(1)