Bug: open source file bug

[maha-hajja]

Bug description

if you have a file-file pipeline, when you open the source file and write to it, you get an error
but if you only echo something into it... then it works fine

panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x185ac22]
goroutine 96 [running]:
github.com/conduitio/conduit-connector-file.(*Source).Read(0xc000171801?, {0x38209a0, 0xc0001035c0})
/Users/mahahajja/go/pkg/mod/github.com/conduitio/[email protected]/source.go:57 +0xe2
github.com/conduitio/conduit-connector-sdk.(*sourcePluginAdapter).runRead(0xc0004fa8c0, {0x38209a0?, 0xc0001035c0?}, {0x3819ff8, 0xc0000d8940})
/Users/mahahajja/go/pkg/mod/github.com/conduitio/[email protected]/source.go:163 +0xf8
github.com/conduitio/conduit-connector-sdk.(*sourcePluginAdapter).Run.func1()
/Users/mahahajja/go/pkg/mod/github.com/conduitio/[email protected]/source.go:144 +0x72
gopkg.in/tomb%2ev2.(*Tomb).run(0xc0001d31d0, 0xc00016b290?)
/Users/mahahajja/go/pkg/mod/gopkg.in/[email protected]/tomb.go:163 +0x36
created by gopkg.in/tomb%2ev2.(*Tomb).Go
/Users/mahahajja/go/pkg/mod/gopkg.in/[email protected]/tomb.go:159 +0xee

note: this is reproduced using macOS Monterey / Version 12.5

Steps to reproduce

1. create a file to file pipeline
2. open the source file and write to it "not from the cmd"
3. an error will occur

Version

v0.3.0-nightly.20220809-2-gc8b4e52-dirty darwin/amd64

[hariso]

@maha-hajja Is the source file initially empty? When you say:

when you open the source file and write to it, you get an error
but if you only echo something into it... then it works fine

so you open the file using an editor, and then you get the nil dereference, but when you use echo, it works as expected?

[maha-hajja]

@hariso the source file could be initially empty or not.. either way, if you open it from an editor and add something, the pipeline would fail
using "echo" works as expected yes