1 files changed, 59 insertions, 0 deletions
diff --git a/core/errors/util-errors.go b/core/errors/util-errors.go
new file mode 100644
index 0000000..c734904
--- /dev/null
+++ b/core/errors/util-errors.go
@@ -0,0 +1,59 @@
+package errors
+
+import (
+	"errors"
+	"strings"
+)
+
+var (
+	// ErrGitCommand is thrown when git command returned an error code
+	ErrGitCommand = errors.New("git command returned error code")
+	// ErrAuthenticationRequired is thrown when an authentication required on
+	// a remote operation
+	ErrAuthenticationRequired = errors.New("authentication required")
+	// ErrAuthorizationFailed is thrown when authorization failed while trying
+	// to authenticate with remote
+	ErrAuthorizationFailed = errors.New("authorization failed")
+	// ErrInvalidAuthMethod is thrown when invalid auth method is invoked
+	ErrInvalidAuthMethod = errors.New("invalid auth method")
+	// ErrAlreadyUpToDate is thrown when a repository is already up to date
+	// with its src on merge/fetch/pull
+	ErrAlreadyUpToDate = errors.New("already up to date")
+	// ErrCouldNotFindRemoteRef is thrown when trying to fetch/pull cannot
+	// find suitable remote reference
+	ErrCouldNotFindRemoteRef = errors.New("could not find remote ref")
+	// ErrMergeAbortedTryCommit indicates that the repositort is not clean and
+	// some changes may conflict with the merge
+	ErrMergeAbortedTryCommit = errors.New("stash/commit changes. aborted")
+	// ErrRemoteBranchNotSpecified means that default remote branch is not set
+	// for the current branch. can be setted with "git config --local --add
+	// branch.<your branch name>.remote=<your remote name> "
+	ErrRemoteBranchNotSpecified = errors.New("upstream not set")
+	// ErrRemoteNotFound is thrown when the remote is not reachable. It may be
+	// caused by the deletion of the remote or coneectivty problems
+	ErrRemoteNotFound = errors.New("remote not found")
+	// ErrConflictAfterMerge is thrown when a conflict occurs at merging two
+	// references
+	ErrConflictAfterMerge = errors.New("conflict while merging")
+	// ErrUnmergedFiles possibly occurs after a conflict
+	ErrUnmergedFiles = errors.New("unmerged files detected")
+	// ErrUnclassified is unconsidered error type
+	ErrUnclassified = errors.New("unclassified error")
+)
+
+// ParseGitError takes git output as an input and tries to find some meaningful
+// errors can be used by the app
+func ParseGitError(out string, err error) error {
+	if strings.Contains(out, "error: Your local changes to the following files would be overwritten by merge") {
+		return ErrMergeAbortedTryCommit
+	} else if strings.Contains(out, "ERROR: Repository not found") {
+		return ErrRemoteNotFound
+	} else if strings.Contains(out, "for your current branch, you must specify a branch on the command line") {
+		return ErrRemoteBranchNotSpecified
+	} else if strings.Contains(out, "Automatic merge failed; fix conflicts and then commit the result") {
+		return ErrConflictAfterMerge
+	} else if strings.Contains(out, "error: Pulling is not possible because you have unmerged files.") {
+		return ErrUnmergedFiles
+	}
+	return ErrUnclassified
+}