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