Filter out all git branches except for the selected one

Author: JohT

COMMANDS.md

@@ -264,7 +264,7 @@ Here is the resulting schema:
 
 #### Parameter
 
-The optional parameter `--source directory-path-to-the-source-folder-containing-git-repositories` can be used to select a different directory for the repositories. By default, the `source` directory within the analysis workspace directory is used. This command only needs the git history to be present. Therefore, `git clone --bare` is sufficient. If the `source` directory is also used for code analysis (like for Typescript) then a full git clone is of course needed.
+The optional parameter `--source directory-path-to-the-source-folder-containing-git-repositories` can be used to select a different directory for the repositories. By default, the `source` directory within the analysis workspace directory is used. This command only needs the git history to be present. Therefore, `git clone --bare` is sufficient. If the `source` directory is also used for code analysis (like for Typescript) then a full git clone is of course needed. Additionally, if you want to focus on a specific version or branch, use `--branch branch-name` to checkout the branch and `--single-branch` to exclude other branches before importing the git log data.
 
 #### Environment Variable
 

GETTING_STARTED.md

@@ -66,7 +66,7 @@ Use these optional command line options as needed:
 
 - If you want to analyze Typescript code, create a symbolic link inside the `source` directory that points to the Typescript project. Alternatively you can also copy the project into the `source` directory.
 
-- If you want to include git data like changed files and authors, create a symbolic link inside the `source` directory that points to the repository or clone it into the `source` directory. If you already have your Typescript project in there, you of course don't have to do it twice. If you are analyzing Java artifacts (full source not needed), it is sufficient to use a bare clone that only contains the git history without the sources using `git clone --bare`.
+- If you want to include git data like changed files and authors, create a symbolic link inside the `source` directory that points to the repository or clone it into the `source` directory. If you already have your Typescript project in there, you of course don't have to do it twice. If you are analyzing Java artifacts (full source not needed), it is sufficient to use a bare clone that only contains the git history without the sources using `git clone --bare`. If you want to focus on one branch, use `--branch branch-name` to checkout the branch and `--single-branch` to only fetch the history of that branch.
 
 - Alternatively to the steps above, run an already predefined download script
 

scripts/downloader/downloadAxonFramework.sh

@@ -57,6 +57,6 @@ source "${SCRIPTS_DIR}/downloadMavenArtifact.sh" -g "${ARTIFACTS_GROUP}" -a "axo
 # This makes it possible to additionally import the git log into the graph
 if [ ! -d "${SOURCE_DIRECTORY}/AxonFramework-${ARTIFACTS_VERSION}/.git" ]; then
   echo "download${ANALYSIS_NAME}: Getting bare git history of source code repository..."
-  git clone --bare https://github.com/AxonFramework/AxonFramework.git --branch "axon-${ARTIFACTS_VERSION}" "${SOURCE_DIRECTORY}/AxonFramework-${ARTIFACTS_VERSION}/.git"
+  git clone --bare https://github.com/AxonFramework/AxonFramework.git --branch "axon-${ARTIFACTS_VERSION}" --single-branch "${SOURCE_DIRECTORY}/AxonFramework-${ARTIFACTS_VERSION}/.git"
 fi
 ################################################################

scripts/downloader/downloadTypescriptProject.sh

@@ -115,7 +115,7 @@ if [ ! -d "${fullSourceDirectory}" ]; then # source doesn't exist
   if [ -n "${cloneUrl}" ]; then # only clone if url is specified and source doesn't exist 
     echo "downloadTypescriptProject: Cloning ${cloneUrl} with version ${projectVersion}..."
     # A full clone is done since not only the source is scanned, but also the git log/history.
-    git clone --branch "${projectTag}" "${cloneUrl}" "${fullSourceDirectory}"
+    git clone --branch "${projectTag}" --single-branch "${cloneUrl}" "${fullSourceDirectory}"
   else
     # Source doesn't exist and no clone URL is specified.
     echo "downloadTypescriptProject: Error: Source directory ${fullSourceDirectory} for project ${projectName} not found."