diff options
Diffstat (limited to 'run.go')
| -rw-r--r-- | run.go | 70 |
1 files changed, 70 insertions, 0 deletions
@@ -0,0 +1,70 @@ +package main + +import ( + "errors" + "fmt" + "os" + "path/filepath" + + "go.wit.com/lib/gui/shell" + "go.wit.com/log" +) + +func purgeGoCaches() { + homedir, err := os.UserHomeDir() + if err != nil { + badExit(err) + } + pkgdir := filepath.Join(homedir, "go/pkg") + var cmd []string + cmd = []string{"chmod", "700", "-R", pkgdir} + runStrict("", cmd) + cmd = []string{"rm", "-rf", pkgdir} + runStrict("", cmd) + builddir := filepath.Join(homedir, ".cache/go-build") + cmd = []string{"rm", "-rf", builddir} + runStrict("", cmd) + + // this can't have really happened + // echo this still failed in: + // echo "Linux hpdev2.grid.wit.com 6.9.8-rt-amd64 #1 SMP PREEMPT_RT Debian 6.9.8-1 (2024-07-07) x86_64 GNU/Linux" + // echo and I had to drop the caches after building go install binaries quickly and running them + // echo "as an os.Exec() between binaries" + // echo sysctl -w vm.drop_caches=3 +} + +func runStrict(wd string, cmd []string) { + var err error + if wd != "" { + if err = os.Chdir(wd); err != nil { + log.Info("cd", "wd", "failed", err) + badExit(err) + } + } + log.Info(wd, "running:", wd, cmd) + // result := shell.Run(cmd) + result := shell.RunRealtime(cmd) + if result.Error != nil { + log.Info("cmd failed", wd, cmd, err) + for i, line := range result.Stdout { + log.Info("STDOUT:", i, line) + } + for i, line := range result.Stderr { + log.Info("STDERR:", i, line) + } + badExit(err) + } + if result.Exit != 0 { + log.Info("cmd failed", wd, cmd, err) + for i, line := range result.Stdout { + log.Info("STDOUT:", i, line) + } + for i, line := range result.Stderr { + log.Info("STDERR:", i, line) + } + badExit(errors.New(fmt.Sprintf("cmd failed with %d", result.Exit))) + } + for i, line := range result.Stdout { + log.Info(i, line) + } +} |