// matchfield reports whether the field matches this build.
static bool
matchfield(char *f)
{
char *p;
bool res;
p = xstrrchr(f, ',');
if(p == nil)
return streq(f, goos) || streq(f, goarch) || streq(f, "cmd_go_bootstrap") || streq(f, "go1.1");
*p = 0;
res = matchfield(f) && matchfield(p+1);
*p = ',';
return res;
}
int
markall(char buf[], int f)
{
char **np;
int i;
struct message *mp;
char *namelist[NMLSIZE], *bufp;
int tok, beg, mc, star, other, valdot, colmod, colresult;
valdot = dot - &message[0] + 1;
colmod = 0;
for (i = 1; i <= msgCount; i++)
unmark(i);
bufp = buf;
mc = 0;
np = &namelist[0];
scaninit();
tok = scan(&bufp);
star = 0;
other = 0;
beg = 0;
while (tok != TEOL) {
switch (tok) {
case TNUMBER:
number:
if (star) {
printf("No numbers mixed with *\n");
return (-1);
}
mc++;
other++;
if (beg != 0) {
if (check(lexnumber, f))
return (-1);
for (i = beg; i <= lexnumber; i++)
if (f == MDELETED || (message[i - 1].m_flag & MDELETED) == 0)
mark(i);
beg = 0;
break;
}
beg = lexnumber;
if (check(beg, f))
return (-1);
tok = scan(&bufp);
regret(tok);
if (tok != TDASH) {
mark(beg);
beg = 0;
}
break;
case TPLUS:
if (beg != 0) {
printf("Non-numeric second argument\n");
return (-1);
}
i = valdot;
do {
i++;
if (i > msgCount) {
printf("Referencing beyond EOF\n");
return (-1);
}
} while ((message[i - 1].m_flag & MDELETED) != f);
mark(i);
break;
case TDASH:
if (beg == 0) {
i = valdot;
do {
i--;
if (i <= 0) {
printf("Referencing before 1\n");
return (-1);
}
} while ((message[i - 1].m_flag & MDELETED) != f);
mark(i);
}
break;
case TSTRING:
if (beg != 0) {
printf("Non-numeric second argument\n");
return (-1);
}
other++;
if (lexstring[0] == ':') {
colresult = evalcol(lexstring[1]);
if (colresult == 0) {
printf("Unknown colon modifier \"%s\"\n",
lexstring);
return (-1);
}
colmod |= colresult;
}
else
*np++ = savestr(lexstring);
break;
case TDOLLAR:
case TUP:
case TDOT:
lexnumber = metamess(lexstring[0], f);
if (lexnumber == -1)
return (-1);
goto number;
case TSTAR:
if (other) {
printf("Can't mix \"*\" with anything\n");
return (-1);
}
star++;
break;
case TERROR:
return (-1);
}
tok = scan(&bufp);
}
lastcolmod = colmod;
*np = NULL;
mc = 0;
if (star) {
for (i = 0; i < msgCount; i++)
if ((message[i].m_flag & MDELETED) == f) {
mark(i+1);
mc++;
}
if (mc == 0) {
printf("No applicable messages.\n");
return (-1);
}
return (0);
}
/*
* If no numbers were given, mark all of the messages,
* so that we can unmark any whose sender was not selected
* if any user names were given.
*/
if ((np > namelist || colmod != 0) && mc == 0)
for (i = 1; i <= msgCount; i++)
if ((message[i-1].m_flag & MDELETED) == f)
mark(i);
/*
* If any names were given, go through and eliminate any
* messages whose senders were not requested.
*/
if (np > namelist) {
for (i = 1; i <= msgCount; i++) {
for (mc = 0, np = &namelist[0]; *np != NULL; np++)
if (**np == '/') {
if (matchfield(*np, i)) {
mc++;
break;
}
}
else {
if (matchsender(*np, i)) {
mc++;
break;
}
}
if (mc == 0)
unmark(i);
}
/*
* Make sure we got some decent messages.
*/
mc = 0;
for (i = 1; i <= msgCount; i++)
if (message[i-1].m_flag & MMARK) {
mc++;
break;
}
if (mc == 0) {
printf("No applicable messages from {%s",
namelist[0]);
for (np = &namelist[1]; *np != NULL; np++)
printf(", %s", *np);
printf("}\n");
return (-1);
}
}
/*
* If any colon modifiers were given, go through and
* unmark any messages which do not satisfy the modifiers.
*/
if (colmod != 0) {
for (i = 1; i <= msgCount; i++) {
struct coltab *colp;
mp = &message[i - 1];
for (colp = &coltab[0]; colp->co_char != '\0'; colp++)
if (colp->co_bit & colmod)
if ((mp->m_flag & colp->co_mask)
!= colp->co_equal)
unmark(i);
}
for (mp = &message[0]; mp < &message[msgCount]; mp++)
if (mp->m_flag & MMARK)
break;
if (mp >= &message[msgCount]) {
struct coltab *colp;
printf("No messages satisfy");
for (colp = &coltab[0]; colp->co_char != '\0'; colp++)
if (colp->co_bit & colmod)
printf(" :%c", colp->co_char);
printf("\n");
return (-1);
}
}
return (0);
}
// shouldbuild reports whether we should build this file.
// It applies the same rules that are used with context tags
// in package go/build, except that the GOOS and GOARCH
// can appear anywhere in the file name, not just after _.
// In particular, they can be the entire file name (like windows.c).
// We also allow the special tag cmd_go_bootstrap.
// See ../go/bootstrap.go and package go/build.
static bool
shouldbuild(char *file, char *dir)
{
char *name, *p;
int i, j, ret;
Buf b;
Vec lines, fields;
// Check file name for GOOS or GOARCH.
name = lastelem(file);
for(i=0; i<nelem(okgoos); i++)
if(contains(name, okgoos[i]) && !streq(okgoos[i], goos))
return 0;
for(i=0; i<nelem(okgoarch); i++)
if(contains(name, okgoarch[i]) && !streq(okgoarch[i], goarch))
return 0;
// Omit test files.
if(contains(name, "_test"))
return 0;
// cmd/go/doc.go has a giant /* */ comment before
// it gets to the important detail that it is not part of
// package main. We don't parse those comments,
// so special case that file.
if(hassuffix(file, "cmd/go/doc.go") || hassuffix(file, "cmd\\go\\doc.go"))
return 0;
if(hassuffix(file, "cmd/cgo/doc.go") || hassuffix(file, "cmd\\cgo\\doc.go"))
return 0;
// Check file contents for // +build lines.
binit(&b);
vinit(&lines);
vinit(&fields);
ret = 1;
readfile(&b, file);
splitlines(&lines, bstr(&b));
for(i=0; i<lines.len; i++) {
p = lines.p[i];
while(*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')
p++;
if(*p == '\0')
continue;
if(contains(p, "package documentation")) {
ret = 0;
goto out;
}
if(contains(p, "package main") && !streq(dir, "cmd/go") && !streq(dir, "cmd/cgo")) {
ret = 0;
goto out;
}
if(!hasprefix(p, "//"))
break;
if(!contains(p, "+build"))
continue;
splitfields(&fields, lines.p[i]);
if(fields.len < 2 || !streq(fields.p[1], "+build"))
continue;
for(j=2; j<fields.len; j++) {
p = fields.p[j];
if((*p == '!' && !matchfield(p+1)) || matchfield(p))
goto fieldmatch;
}
ret = 0;
goto out;
fieldmatch:;
}
out:
bfree(&b);
vfree(&lines);
vfree(&fields);
return ret;
}
