69 lines
1.4 KiB
Go
69 lines
1.4 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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)
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// The maximum number of times an rule may be applied.
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const max_rule_cnt = 3
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func mk(rs *ruleSet, target string, dryrun bool) {
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// Build a graph
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// 1. Introduce special variables into the ruleSet
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}
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func mkError(msg string) {
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fmt.Fprintf(os.Stderr, "mk: %s\n", msg)
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os.Exit(1)
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}
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func main() {
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var mkfilepath string
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var dryrun bool
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flag.StringVar(&mkfilepath, "f", "mkfile", "use the given file as mkfile")
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flag.BoolVar(&dryrun, "n", false, "print commands without actually executing")
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flag.Parse()
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mkfile, err := os.Open(mkfilepath)
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if err != nil {
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mkError("no mkfile found")
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}
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input, _ := ioutil.ReadAll(mkfile)
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mkfile.Close()
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rs := parse(string(input), mkfilepath)
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targets := flag.Args()
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// build the first non-meta rule in the makefile, if none are given explicitly
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for i := range rs.rules {
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if !rs.rules[i].ismeta {
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for j := range rs.rules[i].targets {
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targets = append(targets, rs.rules[i].targets[j].spat)
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}
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}
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}
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if len(targets) == 0 {
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fmt.Println("mk: nothing to mk")
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return
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}
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for _, target := range targets {
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//fmt.Printf("building: %q\n", target)
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g := buildgraph(rs, target)
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g.visualize(os.Stdout)
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//mk(rs, target, dryrun)
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}
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}
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