9     var pkg = action[1]
12         addSteps(decomposed, pkg)
15         updateSteps(decomposed, pkg)
18         moveSteps(decomposed, pkg)
21         removeSteps(decomposed, pkg)
24         defaultSteps(decomposed, cmd, pkg)
30 function addAction (decomposed, action, pkg) {  argument
31   if (decomposed.some((_) => _[0] === action && _[1] === pkg)) return
32   decomposed.push([action, pkg])
35 function addSteps (decomposed, pkg) {  argument
36   if (pkg.fromBundle) {
40     addAction(decomposed, 'fetch', pkg.fromBundle)
41     addAction(decomposed, 'extract', pkg.fromBundle)
43   if (!pkg.fromBundle && !pkg.isLink) {
44     addAction(decomposed, 'fetch', pkg)
45     addAction(decomposed, 'extract', pkg)
47   if (!pkg.fromBundle || npm.config.get('rebuild-bundle')) {
48     addAction(decomposed, 'preinstall', pkg)
49     addAction(decomposed, 'build', pkg)
50     addAction(decomposed, 'install', pkg)
51     addAction(decomposed, 'postinstall', pkg)
53   if (!pkg.fromBundle || !pkg.isLink) {
54     addAction(decomposed, 'finalize', pkg)
56   addAction(decomposed, 'refresh-package-json', pkg)
59 function updateSteps (decomposed, pkg) {  argument
60   removeSteps(decomposed, pkg.oldPkg)
61   addSteps(decomposed, pkg)
64 function removeSteps (decomposed, pkg) {  argument
65   addAction(decomposed, 'unbuild', pkg)
66   addAction(decomposed, 'remove', pkg)
69 function moveSteps (decomposed, pkg) {  argument
70   addAction(decomposed, 'move', pkg)
71   addAction(decomposed, 'build', pkg)
72   addAction(decomposed, 'install', pkg)
73   addAction(decomposed, 'postinstall', pkg)
74   addAction(decomposed, 'refresh-package-json', pkg)
77 function defaultSteps (decomposed, cmd, pkg) {  argument
78   addAction(decomposed, cmd, pkg)