forked from OctaForge/OctaBuild
better error handling
parent
deb4cdbf2a
commit
7ea22b694b
140
main.cc
140
main.cc
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@ -1,8 +1,10 @@
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#include <sys/stat.h>
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#include <ostd/types.hh>
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#include <ostd/string.hh>
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#include <ostd/vector.hh>
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#include "cubescript.hh"
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#include <cubescript.hh>
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struct Rule {
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ostd::String target;
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@ -16,48 +18,64 @@ struct Rule {
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~Rule() { cscript::bcode_unref(func); }
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};
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struct ObState {
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cscript::CsState cs;
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ostd::ConstCharRange progname;
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};
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ostd::Vector<Rule> rules;
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time_t get_file_ts(const char *fname) {
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static time_t ob_get_file_ts(const char *fname) {
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struct stat st;
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if (stat(fname, &st) < 0) return 0;
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return st.st_mtime;
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}
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bool check_ts(ostd::ConstCharRange tname,
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const ostd::Vector<ostd::String> &deps) {
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time_t tts = get_file_ts(tname.data());
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static bool ob_check_ts(ostd::ConstCharRange tname,
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const ostd::Vector<ostd::String> &deps) {
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time_t tts = ob_get_file_ts(tname.data());
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if (!tts) return true;
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for (auto &dep: deps.iter()) {
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time_t sts = get_file_ts(dep.data());
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time_t sts = ob_get_file_ts(dep.data());
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if (sts && tts < sts) return true;
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}
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return false;
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}
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bool check_exec(ostd::ConstCharRange tname,
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const ostd::Vector<ostd::String> &deps) {
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ostd::FileStream f(tname, ostd::StreamMode::read);
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if (!f.is_open()) return true;
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f.close();
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for (auto &dep: deps.iter()) {
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f.open(dep, ostd::StreamMode::read);
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if (!f.is_open()) return true;
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f.close();
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}
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return check_ts(tname, deps);
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static bool ob_check_file(ostd::ConstCharRange fname) {
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return ostd::FileStream(fname, ostd::StreamMode::read).is_open();
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}
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int exec(cscript::CsState &cs, ostd::ConstCharRange target);
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static bool ob_check_exec(ostd::ConstCharRange tname,
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const ostd::Vector<ostd::String> &deps) {
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if (!ob_check_file(tname))
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return true;
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for (auto &dep: deps.iter())
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if (!ob_check_file(dep))
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return true;
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return ob_check_ts(tname, deps);
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}
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template<typename ...A>
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static int ob_error(ObState &os, int retcode, ostd::ConstCharRange fmt,
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A &&...args) {
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ostd::err.write(os.progname, ": ");
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ostd::err.writefln(fmt, ostd::forward<A>(args)...);
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return retcode;
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}
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static int ob_exec_rule(ObState &os, ostd::ConstCharRange target,
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ostd::ConstCharRange from = ostd::ConstCharRange());
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struct SubRule {
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ostd::ConstCharRange sub;
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Rule *rule;
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};
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int exec_list(cscript::CsState &cs,
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const ostd::Vector<SubRule> &rlist,
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ostd::Vector<ostd::String> &subdeps) {
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static int ob_exec_rlist(ObState &os,
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const ostd::Vector<SubRule> &rlist,
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ostd::Vector<ostd::String> &subdeps,
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ostd::ConstCharRange tname) {
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ostd::String repd;
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for (auto &sr: rlist.iter()) for (auto &target: sr.rule->deps.iter()) {
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ostd::ConstCharRange atgt = target.iter();
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@ -71,41 +89,39 @@ int exec_list(cscript::CsState &cs,
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atgt = repd.iter();
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}
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subdeps.push(atgt);
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int r = exec(cs, atgt);
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int r = ob_exec_rule(os, atgt, tname);
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if (r) return r;
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}
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return 0;
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}
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int exec_func(cscript::CsState &cs, ostd::ConstCharRange tname,
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const ostd::Vector<SubRule> &rlist) {
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static int ob_exec_func(ObState &os, ostd::ConstCharRange tname,
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const ostd::Vector<SubRule> &rlist) {
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ostd::Vector<ostd::String> subdeps;
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int r = exec_list(cs, rlist, subdeps);
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if (check_exec(tname, subdeps)) {
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int r = ob_exec_rlist(os, rlist, subdeps, tname);
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if (ob_check_exec(tname, subdeps)) {
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if (r) return r;
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ostd::Uint32 *func = nullptr;
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for (auto &sr: rlist.iter()) {
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Rule &r = *sr.rule;
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if (!r.func)
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continue;
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if (func) {
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ostd::err.writefln("redefinition of rule '%s'", tname);
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return 1;
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}
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if (func)
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return ob_error(os, 1, "redefinition of rule '%s'", tname);
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func = r.func;
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}
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if (func) {
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cscript::StackedValue targetv, sourcev, sourcesv;
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targetv.id = cs.new_ident("target");
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targetv.id = os.cs.new_ident("target");
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if (!cscript::check_alias(targetv.id))
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return 1;
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targetv.set_cstr(tname);
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targetv.push();
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if (subdeps.size() > 0) {
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sourcev.id = cs.new_ident("source");
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sourcesv.id = cs.new_ident("sources");
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sourcev.id = os.cs.new_ident("source");
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sourcesv.id = os.cs.new_ident("sources");
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if (!cscript::check_alias(sourcev.id))
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return 1;
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if (!cscript::check_alias(sourcesv.id))
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@ -121,14 +137,14 @@ int exec_func(cscript::CsState &cs, ostd::ConstCharRange tname,
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sourcesv.push();
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}
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return cs.run_int(func);
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return os.cs.run_int(func);
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}
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}
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return 0;
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}
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ostd::ConstCharRange compare_subst(ostd::ConstCharRange expanded,
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ostd::ConstCharRange toexpand) {
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static ostd::ConstCharRange ob_compare_subst(ostd::ConstCharRange expanded,
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ostd::ConstCharRange toexpand) {
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auto rep = ostd::find(toexpand, '%');
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/* no subst found */
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if (rep.empty())
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@ -157,26 +173,35 @@ ostd::ConstCharRange compare_subst(ostd::ConstCharRange expanded,
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return expanded;
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}
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int exec(cscript::CsState &cs, ostd::ConstCharRange target) {
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static int ob_exec_rule(ObState &os, ostd::ConstCharRange target,
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ostd::ConstCharRange from) {
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ostd::Vector<SubRule> rlist;
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for (auto &rule: rules.iter()) {
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if (target == rule.target) {
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rlist.push().rule = &rule;
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continue;
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}
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ostd::ConstCharRange sub = compare_subst(target, rule.target);
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ostd::ConstCharRange sub = ob_compare_subst(target, rule.target);
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if (!sub.empty()) {
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SubRule &sr = rlist.push();
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sr.rule = &rule;
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sr.sub = sub;
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}
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}
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if (rlist.empty()) return 0;
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return exec_func(cs, target, rlist);
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if (rlist.empty() && !ob_check_file(target)) {
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if (from.empty())
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return ob_error(os, 1, "no rule to run target '%s'", target);
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else
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return ob_error(os, 1, "no rule to run target '%s' "
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"(needed by '%s')",
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target, from);
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return 1;
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}
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return ob_exec_func(os, target, rlist);
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}
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void rule(cscript::CsState &, const char *tgt, const char *dep, uint *body,
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int *numargs) {
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static void ob_rule_cmd(cscript::CsState &, const char *tgt, const char *dep,
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ostd::Uint32 *body, int *numargs) {
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ostd::Vector<ostd::String> targets = cscript::util::list_explode(tgt);
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ostd::Vector<ostd::String> deps = cscript::util::list_explode(dep);
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for (auto &target: targets.iter()) {
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@ -192,21 +217,30 @@ void rule(cscript::CsState &, const char *tgt, const char *dep, uint *body,
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}
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int main(int argc, char **argv) {
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cscript::CsState cs;
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ObState os;
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const char *lslash = strrchr(argv[0], '/');
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if (lslash)
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os.progname = lslash + 1;
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else
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os.progname = argv[0];
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cscript::init_lib_base(cs);
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cscript::init_lib_io(cs);
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cscript::init_lib_math(cs);
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cscript::init_lib_string(cs);
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cscript::init_lib_list(cs);
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cscript::init_lib_base(os.cs);
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cscript::init_lib_io(os.cs);
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cscript::init_lib_math(os.cs);
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cscript::init_lib_string(os.cs);
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cscript::init_lib_list(os.cs);
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cs.add_command("shell", "C", [](cscript::CsState &cs, char *s) {
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os.cs.add_command("shell", "C", [](cscript::CsState &cs, char *s) {
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cs.result->set_int(system(s));
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});
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cs.add_command("rule", "sseN", rule);
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os.cs.add_command("rule", "sseN", ob_rule_cmd);
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if (!cs.run_file("cubefile", true))
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return 1;
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return exec(cs, (argc > 1) ? argv[1] : "all");
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if (!os.cs.run_file("cubefile", true))
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return ob_error(os, 1, "failed creating rules");
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if (rules.empty())
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return ob_error(os, 1, "no targets");
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return ob_exec_rule(os, (argc > 1) ? argv[1] : "all");
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}
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