Fix clone / fetch error on Nix built binary https://github.com/NixOS/nixpkgs/issues/443125

Changes

4 changed files (+22/-3)

• default.nix
  • @@ -27,6 +27,7 @@ buildGoModule {
    ldflags = [ # git binary from nixpkgs links against libs under "/nix/store/.../lib" "-X main.additionalAccessDirs=/nix/store" + "-X github.com/pocka/legit/git/exe.gitPath=${lib.getExe git}" ]; # Test scripts invoke system "git" command.
• git/exe/exe.go (new)
  • @@ -0,0 +1,15 @@
    + // Copyright 2026 Shota FUJI <pockawoooh@gmail.com> + // SPDX-License-Identifier: MIT + + package exe + + var gitPath string + + func GitBin() string { + if gitPath != "" { + return gitPath + } + + // Let the system resolve. + return "git" + }
• git/service/service.go
  • @@ -9,6 +9,8 @@ import (
    "os/exec" "strings" "syscall" + + "github.com/pocka/legit/git/exe" ) // Mostly from charmbracelet/soft-serve and sosedoff/gitkit.
  • @@ -20,7 +22,7 @@ type ServiceCommand struct {
    } func (c *ServiceCommand) InfoRefs() error { - cmd := exec.Command("git", []string{ + cmd := exec.Command(exe.GitBin(), []string{ "upload-pack", "--stateless-rpc", "--advertise-refs",
  • @@ -68,7 +70,7 @@ func (c *ServiceCommand) InfoRefs() error {
    } func (c *ServiceCommand) UploadPack() error { - cmd := exec.Command("git", []string{ + cmd := exec.Command(exe.GitBin(), []string{ "-c", "uploadpack.allowFilter=true", "upload-pack", "--stateless-rpc",
• main.go
  • @@ -12,6 +12,7 @@ import (
    "github.com/pocka/legit/config" "github.com/pocka/legit/embed" + "github.com/pocka/legit/git/exe" "github.com/pocka/legit/routes" )
  • @@ -73,7 +74,7 @@ func main() {
    write: true, } - if path, err := exec.LookPath("git"); err != nil { + if path, err := exec.LookPath(exe.GitBin()); err != nil { log.Printf("Unable to find git binary, git operations will fail: %s", err) } else { fsAllowList = append(fsAllowList, filesystemAccess{