1 files changed, 87 insertions, 0 deletions
diff --git a/forged/internal/ipc/git2c/perror.go b/forged/internal/ipc/git2c/perror.go
new file mode 100644
index 0000000..4be2a07
--- /dev/null
+++ b/forged/internal/ipc/git2c/perror.go
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: AGPL-3.0-only
+// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org>
+
+// TODO: Make the C part report detailed error messages too
+
+package git2c
+
+import "errors"
+
+var (
+	ErrUnknown                         = errors.New("git2c: unknown error")
+	ErrPath                            = errors.New("git2c: get tree entry by path failed")
+	ErrRevparse                        = errors.New("git2c: revparse failed")
+	ErrReadme                          = errors.New("git2c: no readme")
+	ErrBlobExpected                    = errors.New("git2c: blob expected")
+	ErrEntryToObject                   = errors.New("git2c: tree entry to object conversion failed")
+	ErrBlobRawContent                  = errors.New("git2c: get blob raw content failed")
+	ErrRevwalk                         = errors.New("git2c: revwalk failed")
+	ErrRevwalkPushHead                 = errors.New("git2c: revwalk push head failed")
+	ErrBareProto                       = errors.New("git2c: bare protocol error")
+	ErrRefResolve                      = errors.New("git2c: ref resolve failed")
+	ErrBranches                        = errors.New("git2c: list branches failed")
+	ErrCommitLookup                    = errors.New("git2c: commit lookup failed")
+	ErrDiff                            = errors.New("git2c: diff failed")
+	ErrMergeBaseNone                   = errors.New("git2c: no merge base found")
+	ErrMergeBase                       = errors.New("git2c: merge base failed")
+	ErrCommitCreate                    = errors.New("git2c: commit create failed")
+	ErrUpdateRef                       = errors.New("git2c: update ref failed")
+	ErrCommitTree                      = errors.New("git2c: commit tree lookup failed")
+	ErrInitRepoCreate                  = errors.New("git2c: init repo: create failed")
+	ErrInitRepoConfig                  = errors.New("git2c: init repo: open config failed")
+	ErrInitRepoSetHooksPath            = errors.New("git2c: init repo: set core.hooksPath failed")
+	ErrInitRepoSetAdvertisePushOptions = errors.New("git2c: init repo: set receive.advertisePushOptions failed")
+	ErrInitRepoMkdir                   = errors.New("git2c: init repo: create directory failed")
+)
+
+func Perror(errno uint64) error {
+	switch errno {
+	case 0:
+		return nil
+	case 3:
+		return ErrPath
+	case 4:
+		return ErrRevparse
+	case 5:
+		return ErrReadme
+	case 6:
+		return ErrBlobExpected
+	case 7:
+		return ErrEntryToObject
+	case 8:
+		return ErrBlobRawContent
+	case 9:
+		return ErrRevwalk
+	case 10:
+		return ErrRevwalkPushHead
+	case 11:
+		return ErrBareProto
+	case 12:
+		return ErrRefResolve
+	case 13:
+		return ErrBranches
+	case 14:
+		return ErrCommitLookup
+	case 15:
+		return ErrDiff
+	case 16:
+		return ErrMergeBaseNone
+	case 17:
+		return ErrMergeBase
+	case 18:
+		return ErrUpdateRef
+	case 19:
+		return ErrCommitCreate
+	case 20:
+		return ErrInitRepoCreate
+	case 21:
+		return ErrInitRepoConfig
+	case 22:
+		return ErrInitRepoSetHooksPath
+	case 23:
+		return ErrInitRepoSetAdvertisePushOptions
+	case 24:
+		return ErrInitRepoMkdir
+	}
+	return ErrUnknown
+}