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patch 8.2.4742: there is no way to start logging very early in startup

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Problem:    There is no way to start logging very early in startup.
Solution:   Add the --log argument.  Include the date in the start message in
            the log file.  Avoid a duplicate message when forking.  Log an
            executed shell command.
This commit is contained in:
Bram Moolenaar
2022-04-12 15:09:23 +01:00
parent 60895f3e36
commit c9a9a0ac1e
8 changed files with 63 additions and 7 deletions
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27
src/main.c
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@@ -138,15 +138,23 @@ main
atexit(vim_mem_profile_dump);
#endif
#ifdef STARTUPTIME
// Need to find "--startuptime" before actually parsing arguments.
#if defined(STARTUPTIME) || defined(FEAT_JOB_CHANNEL)
// Need to find "--startuptime" and "--log" before actually parsing
// arguments.
for (i = 1; i < argc - 1; ++i)
if (STRICMP(argv[i], "--startuptime") == 0)
{
# ifdef STARTUPTIME
if (STRICMP(argv[i], "--startuptime") == 0 && time_fd == NULL)
{
time_fd = mch_fopen(argv[i + 1], "a");
TIME_MSG("--- VIM STARTING ---");
break;
}
# endif
# ifdef FEAT_JOB_CHANNEL
if (STRICMP(argv[i], "--log") == 0)
ch_logfile((char_u *)(argv[i + 1]), (char_u *)"a");
# endif
}
#endif
starttime = time(NULL);
@@ -1997,6 +2005,8 @@ command_line_scan(mparm_T *parmp)
// "--version" give version message
// "--clean" clean context
// "--literal" take files literally
// "--startuptime fname" write timing info
// "--log fname" start logging early
// "--nofork" don't fork
// "--not-a-term" don't warn for not a term
// "--ttyfail" exit if not a term
@@ -2053,6 +2063,11 @@ command_line_scan(mparm_T *parmp)
want_argument = TRUE;
argv_idx += 11;
}
else if (STRNICMP(argv[0] + argv_idx, "log", 3) == 0)
{
want_argument = TRUE;
argv_idx += 3;
}
#ifdef FEAT_CLIENTSERVER
else if (STRNICMP(argv[0] + argv_idx, "serverlist", 10) == 0)
; // already processed -- no arg
@@ -2435,6 +2450,7 @@ command_line_scan(mparm_T *parmp)
(char_u *)argv[0];
}
// "--startuptime <file>" already handled
// "--log <file>" already handled
break;
// case 'd': -d {device} is handled in mch_check_win() for the
@@ -3539,6 +3555,9 @@ usage(void)
#ifdef STARTUPTIME
main_msg(_("--startuptime <file>\tWrite startup timing messages to <file>"));
#endif
#ifdef FEAT_JOB_CHANNEL
main_msg(_("--log <file>\tStart logging to <file> early"));
#endif
#ifdef FEAT_VIMINFO
main_msg(_("-i <viminfo>\t\tUse <viminfo> instead of .viminfo"));
#endif