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// Copyright 2015 Google Inc. All rights reserved
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package kati
import (
"fmt"
"io"
)
func showDeps(w io.Writer, n *DepNode, indent int, seen map[string]int) {
id, present := seen[n.Output]
if !present {
id = len(seen)
seen[n.Output] = id
}
fmt.Fprintf(w, "%*c%s (%d)\n", indent, ' ', n.Output, id)
if present {
return
}
for _, d := range n.Deps {
showDeps(w, d, indent+1, seen)
}
if len(n.OrderOnlys) > 0 {
fmt.Fprintf(w, "%*corder_onlys:\n", indent, ' ')
for _, d := range n.OrderOnlys {
showDeps(w, d, indent+1, seen)
}
}
}
func showNode(w io.Writer, n *DepNode) {
fmt.Fprintf(w, "%s:", n.Output)
for _, i := range n.ActualInputs {
fmt.Fprintf(w, " %s", i)
}
fmt.Fprintf(w, "\n")
for _, c := range n.Cmds {
fmt.Fprintf(w, "\t%s\n", c)
}
for k, v := range n.TargetSpecificVars {
fmt.Fprintf(w, "%s: %s=%s\n", n.Output, k, v.String())
}
fmt.Fprintf(w, "\n")
fmt.Fprintf(w, "location: %s:%d\n", n.Filename, n.Lineno)
if n.IsPhony {
fmt.Fprintf(w, "phony: true\n")
}
seen := make(map[string]int)
fmt.Fprintf(w, "dependencies:\n")
showDeps(w, n, 1, seen)
}
func handleNodeQuery(w io.Writer, q string, nodes []*DepNode) {
for _, n := range nodes {
if n.Output == q {
showNode(w, n)
break
}
}
}
// Query queries q in g.
func Query(w io.Writer, q string, g *DepGraph) {
if q == "$MAKEFILE_LIST" {
for _, mk := range g.accessedMks {
fmt.Fprintf(w, "%s: state=%d\n", mk.Filename, mk.State)
}
return
}
if q == "$*" {
for k, v := range g.vars {
fmt.Fprintf(w, "%s=%s\n", k, v.String())
}
return
}
if q == "*" {
for _, n := range g.nodes {
fmt.Fprintf(w, "%s\n", n.Output)
}
return
}
handleNodeQuery(w, q, g.nodes)
}
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