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dbg: Better logging, -d runcmd_trace_file=FILEPATH support

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ge
2026-06-01 00:01:32 +03:00
parent 5636f29acd
commit ac516c7b6c
3 changed files with 29 additions and 13 deletions
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cmd.v
+17 -12
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@@ -207,7 +207,7 @@ pub fn (mut c Command) start() !int {
}
child_pipes_hook := fn [mut c, pipes] (mut p Process) ! {
printdbg('child pipes hook!')
printdbg('Command.start: executing child pipes hook...')
if !c.redirect_stdio {
return
}
@@ -228,21 +228,21 @@ pub fn (mut c Command) start() !int {
if c.redirect_stdio {
if c.stdin != none {
c.stdio_copy_fns << fn [mut c] () ! {
printdbg('Command.start: stdin copy callback called')
printdbg('Command.start: stdin copy closure: started')
mut fd := c.stdin()!
printdbg('Command.start: stdin copy callback: child stdin fd=${fd.fd}')
printdbg('Command.start: stdin copy closure: child stdin fd=${fd.fd}')
if c.stdin != none {
// FIXME: V bug?: without `if` guard acessing
// to c.stdin causes SIGSEGV.
io_copy(mut c.stdin, mut fd, 'copy stdin')!
printdbg('Command.start: stdin copy callback: close child stdin fd after copy')
printdbg('Command.start: stdin copy closure: close child stdin fd after copy')
fd_close(fd.fd)!
}
}
}
if c.stdout != none {
c.stdio_copy_fns << fn [mut c] () ! {
printdbg('Command.start: stdout copy callback called')
printdbg('Command.start: stdout copy closure: started')
mut fd := c.stdout()!
if c.stdout != none {
io_copy(mut fd, mut c.stdout, 'copy stdout')!
@@ -251,7 +251,7 @@ pub fn (mut c Command) start() !int {
}
if c.stderr != none {
c.stdio_copy_fns << fn [mut c] () ! {
printdbg('Command.start: stderr copy callback called')
printdbg('Command.start: stderr copy closure: started')
mut fd := c.stderr()!
if c.stderr != none {
io_copy(mut fd, mut c.stderr, 'copy stderr')!
@@ -283,7 +283,9 @@ pub fn (mut c Command) start() !int {
for f in c.stdio_copy_fns {
go fn (func IOCopyFn) {
printdbg('Command.start: starting I/O copy closure in coroutine')
func() or { eprintln('error in I/O copy coroutine: ${err}') }
func() or {
eprintln('error in I/O copy coroutine: msg=${err.msg()}; code=${err.code()}')
}
}(f)
}
}
@@ -358,7 +360,7 @@ pub fn (c Command) stdin() !WriteFd {
WriteFd{c.stdio[0]}
} else {
printdbg('${@METHOD}: invalid fd -1')
error_with_code('Bad file descriptor', 9)
error_with_code('File descriptor is not set', 9)
}
}
@@ -370,7 +372,7 @@ pub fn (c Command) stdout() !ReadFd {
ReadFd{c.stdio[1]}
} else {
printdbg('${@METHOD}: invalid fd -1')
error_with_code('Bad file descriptor', 9)
error_with_code('File descriptor is not set', 9)
}
}
@@ -382,7 +384,7 @@ pub fn (c Command) stderr() !ReadFd {
ReadFd{c.stdio[2]}
} else {
printdbg('${@METHOD}: invalid fd -1')
error_with_code('Bad file descriptor', 9)
error_with_code('File descriptor is not set', 9)
}
}
@@ -412,11 +414,14 @@ fn io_copy(mut src io.Reader, mut dst io.Writer, msg string) ! {
}
for {
nr := src.read(mut buf) or {
printdbg('${@FN}: (${msg}) got error from reader, breaking loop: ${err}')
printdbg("${@FN}: (${msg}) got error from reader, breaking loop: msg='${err.msg()}'; code=${err.code()}")
break
}
printdbg('${@FN}: (${msg}) ${nr} bytes read from src to buf')
nw := dst.write(buf[..nr]) or { return err }
nw := dst.write(buf[..nr]) or {
printdbg("${@FN}: (${msg}) got error from writer, exiting: msg='${err.msg()}'; code=${err.code()}")
return err
}
printdbg('${@FN}: (${msg}) ${nw} bytes written to dst')
}
}