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MEDIUM: init: support a list of files on the command line

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HAProxy could already support being passed a file list on the command
line, by passing multiple times "-f" followed by a file name. People
have been complaining that it made it hard to pass file lists from init
scripts.

This patch introduces an end of arguments using the common "--" tag,
after which only file names may appear. These files are then added to
the existing list of other files specified using -f and are loaded in
their declaration order. Thus it becomes possible to do something like
this :

    haproxy -sf $(pidof haproxy) -- /etc/haproxy/global.cfg /etc/haproxy/customers/*.cfg
This commit is contained in:
Willy Tarreau 2015-10-08 11:58:48 +02:00
parent c6ca1aa34d
commit a088d316b7
1 changed files with 16 additions and 1 deletions
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17
src/haproxy.c
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@ -416,7 +416,7 @@ void usage(char *name)
fprintf(stderr,
"Usage : %s [-f <cfgfile>]* [ -vdV"
"D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
" [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
" [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
" -v displays version ; -vv shows known build options.\n"
" -d enters debug mode ; -db only disables background mode.\n"
" -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
@ -702,6 +702,21 @@ void init(int argc, char **argv)
nb_oldpids++;
}
}
else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
/* now that's a cfgfile list */
argv++; argc--;
while (argc > 0) {
wl = (struct wordlist *)calloc(1, sizeof(*wl));
if (!wl) {
Alert("Cannot load configuration file %s : out of memory.\n", *argv);
exit(1);
}
wl->s = *argv;
LIST_ADDQ(&cfg_cfgfiles, &wl->list);
argv++; argc--;
}
break;
}
else { /* >=2 args */
argv++; argc--;
if (argc == 0)