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Auto prepend caller when wrapping errors

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This commit is contained in:
Frederik Ring
2024-02-16 15:35:42 +01:00
parent 83fa0aae48
commit 52c22a1891
24 changed files with 313 additions and 222 deletions
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38
cmd/backup/run_script.go
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@@ -6,6 +6,8 @@ package main
import (
"errors"
"fmt"
"github.com/offen/docker-volume-backup/internal/errwrap"
)
// runScript instantiates a new script object and orchestrates a backup run.
@@ -15,7 +17,12 @@ import (
func runScript(c *Config) (err error) {
defer func() {
if derr := recover(); derr != nil {
err = fmt.Errorf("runScript: unexpected panic running script: %v", derr)
asErr, ok := derr.(error)
if ok {
err = errwrap.Wrap(asErr, "unexpected panic running script")
} else {
err = errwrap.Wrap(nil, fmt.Sprintf("%v", derr))
}
}
}()
@@ -23,27 +30,27 @@ func runScript(c *Config) (err error) {
unlock, lockErr := s.lock("/var/lock/dockervolumebackup.lock")
if lockErr != nil {
err = fmt.Errorf("runScript: error acquiring file lock: %w", lockErr)
err = errwrap.Wrap(lockErr, "error acquiring file lock")
return
}
defer func() {
if derr := unlock(); derr != nil {
err = errors.Join(err, fmt.Errorf("runScript: error releasing file lock: %w", derr))
err = errors.Join(err, errwrap.Wrap(derr, "error releasing file lock"))
}
}()
unset, err := s.c.applyEnv()
if err != nil {
return fmt.Errorf("runScript: error applying env: %w", err)
return errwrap.Wrap(err, "error applying env")
}
defer func() {
if derr := unset(); derr != nil {
err = errors.Join(err, fmt.Errorf("runScript: error unsetting environment variables: %w", derr))
err = errors.Join(err, errwrap.Wrap(derr, "error unsetting environment variables"))
}
}()
if initErr := s.init(); initErr != nil {
err = fmt.Errorf("runScript: error instantiating script: %w", initErr)
err = errwrap.Wrap(initErr, "error instantiating script")
return
}
@@ -56,7 +63,7 @@ func runScript(c *Config) (err error) {
// similar).
defer func() {
if derr := restartContainersAndServices(); derr != nil {
err = errors.Join(err, fmt.Errorf("runScript: error restarting containers and services: %w", derr))
err = errors.Join(err, errwrap.Wrap(derr, "error restarting containers and services"))
}
}()
if err != nil {
@@ -82,19 +89,22 @@ func runScript(c *Config) (err error) {
if hookErr := s.runHooks(scriptErr); hookErr != nil {
if scriptErr != nil {
return fmt.Errorf(
"runScript: error %w executing the script followed by %w calling the registered hooks",
scriptErr,
hookErr,
return errwrap.Wrap(
nil,
fmt.Sprintf(
"error %v executing the script followed by %v calling the registered hooks",
scriptErr,
hookErr,
),
)
}
return fmt.Errorf(
"runScript: the script ran successfully, but an error occurred calling the registered hooks: %w",
return errwrap.Wrap(
hookErr,
"the script ran successfully, but an error occurred calling the registered hooks",
)
}
if scriptErr != nil {
return fmt.Errorf("runScript: error running script: %w", scriptErr)
return errwrap.Wrap(scriptErr, "error running script")
}
return nil
}()