/**
* Gets type of git object.
*
* @param gitObject revision object e.g. commit, tree, blob, tag.
* @return type of git object
*/
private String getRevisionType(String gitObject) throws GitException {
EmptyGitCommand command =
nativeGit
.createEmptyGitCommand()
.setNextParameter("cat-file")
.setNextParameter("-t")
.setNextParameter(gitObject);
command.execute();
return command.getText();
}
/**
* Gets branch ref by branch name.
*
* @param branchName existing git branch name
* @return ref to the branch
* @throws GitException when it is not possible to get branchName ref
*/
private String getBranchRef(String branchName) throws GitException {
EmptyGitCommand command = nativeGit.createEmptyGitCommand();
command.setNextParameter("show-ref").setNextParameter(branchName).execute();
final String output = command.getText();
if (output.isEmpty()) {
throw new GitException("Error getting reference of branch.");
}
return output.split(" ")[1];
}
/**
* Ensure existence repository root directory inside working directory and in our virtual file
* system
*
* @throws GitException if git root folder is not in working directory
*/
void ensureExistenceRepoRootInWorkingDirectory() throws GitException {
if (isInsideWorkTree()) {
final EmptyGitCommand emptyGitCommand = nativeGit.createEmptyGitCommand();
emptyGitCommand.setNextParameter("rev-parse").setNextParameter("--git-dir").execute();
final String gitDir = emptyGitCommand.getText();
// here we check that git repo inside our file system mount point
if (!gitDir.startsWith(mountRoot.getAbsolutePath()) && !gitDir.equals(".git")) {
throw new GitException("Project is not a git repository.");
}
} else {
throw new GitException("Project is not a git repository.");
}
}
/**
* Ensure existence repository root directory inside working directory
*
* @throws GitException if git root folder is not in working directory
*/
boolean isInsideWorkTree() throws GitException {
final EmptyGitCommand emptyGitCommand = nativeGit.createEmptyGitCommand();
// command "rev-parse --is-inside-work-tree" returns true/false
try {
emptyGitCommand
.setNextParameter("rev-parse")
.setNextParameter("--is-inside-work-tree")
.execute();
final String output = emptyGitCommand.getText();
return Boolean.valueOf(output);
} catch (GitException ge) {
String msg = ge.getMessage();
if (msg != null && notInGitRepoErrorPattern.matcher(msg).matches()) {
return false;
}
throw ge;
}
}