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Add tix-build support for catching warnings.

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This commit is contained in:
Jonas 'Sortie' Termansen 2014-12-27 23:42:59 +01:00
parent fc1531ad8d
commit a03546be01
1 changed files with 96 additions and 0 deletions
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96
tix/tix-build.cpp
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@ -116,6 +116,74 @@ typedef struct
enum build_step end_step;
} metainfo_t;
bool has_in_path(const char* program)
{
pid_t child_pid = fork();
if ( child_pid < 0 )
error(1, errno, "fork: which %s", program);
if ( child_pid )
{
int exitstatus;
waitpid(child_pid, &exitstatus, 0);
return WIFEXITED(exitstatus) && WEXITSTATUS(exitstatus) == 0;
}
close(0); open("/dev/null", O_RDONLY);
close(1); open("/dev/null", O_WRONLY);
close(2); open("/dev/null", O_WRONLY);
char* argv[] =
{
(char*) "which",
(char*) program,
(char*) NULL,
};
execvp(argv[0], argv);
_exit(1);
}
void emit_compiler_warning_wrapper(metainfo_t* minfo,
const char* bindir,
const char* name)
{
(void) minfo;
if ( !has_in_path(name) )
return;
const char* warnings_dir = getenv("TIX_WARNINGS_DIR");
char* wrapper_path = print_string("%s/%s", bindir, name);
FILE* wrapper = fopen(wrapper_path, "w");
if ( !wrapper )
error(1, errno, "`%s'", wrapper_path);
// TODO: Find a portable shell way of doing this.
fprintf(wrapper, "#!/bin/bash\n");
fprint_shell_variable_assignment(wrapper, "PATH", getenv("PATH"));
fprint_shell_variable_assignment(wrapper, "TIX_WARNINGS_DIR", warnings_dir);
fprintf(wrapper, "warnfile=$(mktemp --tmpdir=\"$TIX_WARNINGS_DIR\")\n");
fprintf(wrapper, "(%s \"$@\") 2> >(tee $warnfile >&2)\n", name);
fprintf(wrapper, "exitstatus=$?\n");
fprintf(wrapper, "if test -s \"$warnfile\"; then\n");
fprintf(wrapper, " if test $exitstatus = 0; then\n");
fprintf(wrapper, " (echo \"cd $(pwd) && %s $@\" && cat \"$warnfile\") > \"$warnfile.warn\"\n", name);
fprintf(wrapper, " else\n");
fprintf(wrapper, " (echo \"cd $(pwd) && %s $@\" && cat \"$warnfile\") > \"$warnfile.err\"\n", name);
fprintf(wrapper, " fi\n");
fprintf(wrapper, "fi\n");
fprintf(wrapper, "rm -f \"$warnfile\"\n");
fprintf(wrapper, "exit $exitstatus\n");
fflush(wrapper);
fchmod_plus_x(fileno(wrapper));
fclose(wrapper);
free(wrapper_path);
}
void emit_compiler_warning_cross_wrapper(metainfo_t* minfo,
const char* bindir,
const char* name)
{
char* cross_name = print_string("%s-%s", minfo->host, name);
emit_compiler_warning_wrapper(minfo, bindir, cross_name);
free(cross_name);
}
void emit_pkg_config_wrapper(metainfo_t* minfo)
{
char* bindir = print_string("%s/tmppid.%ju.bin", minfo->tmp, (uintmax_t) getpid());
@ -175,6 +243,34 @@ void emit_pkg_config_wrapper(metainfo_t* minfo)
free(var_pkg_config_path);
free(var_pkg_config_sysroot_dir);
if ( getenv("TIX_WARNINGS_DIR") )
{
char* warnings_dir = print_string("%s/%s", getenv("TIX_WARNINGS_DIR"), minfo->package_name);
if ( mkdir(warnings_dir, 0777) == 0 || errno == EEXIST )
{
setenv("TIX_WARNINGS_DIR", warnings_dir, 1);
}
else
{
error(1, errno, "mkdir: `%s': compiler warnings won't be saved", warnings_dir);
unsetenv("TIX_WARNINGS_DIR");
}
free(warnings_dir);
}
if ( getenv("TIX_WARNINGS_DIR") )
{
emit_compiler_warning_wrapper(minfo, bindir, "cc");
emit_compiler_warning_wrapper(minfo, bindir, "gcc");
emit_compiler_warning_wrapper(minfo, bindir, "c++");
emit_compiler_warning_wrapper(minfo, bindir, "g++");
emit_compiler_warning_cross_wrapper(minfo, bindir, "cc");
emit_compiler_warning_cross_wrapper(minfo, bindir, "gcc");
emit_compiler_warning_cross_wrapper(minfo, bindir, "c++");
emit_compiler_warning_cross_wrapper(minfo, bindir, "g++");
}
char* new_path = print_string("%s:%s", bindir, getenv("PATH") ? getenv("PATH") : "");
setenv("PATH", new_path, 1);
free(new_path);