func (p *Project) startLocked() error {
p.port = randomFreePort()
cmd := p.ProjectCmd()
log.Infof("Starting %s (%s)", p.Name(), cmdString(cmd))
p.cmd = cmd
p.out.Reset()
p.runError = nil
p.exitCode = 0
err := cmd.Start()
go func() {
werr := cmd.Wait()
if cmd == p.cmd {
// Othewise the process was intentionally killed
if s := cmd.ProcessState; s != nil {
exitCode := exitStatus(s)
p.Lock()
defer p.Unlock()
p.runError = werr
p.exitCode = exitCode
log.Warningf("%s exited with code %d", p.Name(), exitCode)
}
}
}()
time.AfterFunc(100*time.Millisecond, p.projectStarted)
return err
}
// Timings returns the available timings for the current
// goroutine. Note that calling Timings will end any events
// which have been set to automatically end (with Timed.AutoEnd)
// so this function should only be called at the end of the
// request lifecycle.
func Timings() []*Timing {
var timings map[string]*Timing
contexts.RLock()
ctx := contexts.data[goroutineId()]
if ctx != nil {
timings = make(map[string]*Timing)
ctx.Lock()
for _, v := range ctx.events {
if v.ended.IsZero() {
if v.autoend {
v.End()
} else {
if len(v.notes) > 0 {
log.Warningf("unfinished %q event (%s)", v.name, v.notes)
} else {
log.Warningf("unfinished %q event", v.name)
}
continue
}
}
timing := timings[v.name]
if timing == nil {
timing = &Timing{Name: v.name}
timings[v.name] = timing
}
timing.Events = append(timing.Events, &Event{v.started, v.ended, v.notes})
}
ctx.Unlock()
}
contexts.RUnlock()
ret := make([]*Timing, 0, len(timings))
for _, v := range timings {
ret = append(ret, v)
}
return ret
}
// Handler returns an http.handlerFunc which serves the assets from this
// Manager. To avoid circular imports, this function returns an http.HandlerFunc
// rather than a gnd.la/app.Handler. To obtain a gnd.la/app.Handler use
// gnd.la/app.HandlerFromHTTPFunc.
func (m *Manager) Handler() http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
p := m.Path(r.URL)
f, err := m.Load(p)
if err != nil {
log.Warningf("error serving %s: %s", r.URL, err)
return
}
seeker, err := Seeker(f)
if err != nil {
log.Warningf("error serving %s: %s", r.URL, err)
return
}
var modtime time.Time
if st, err := m.VFS().Stat(p); err == nil {
modtime = st.ModTime()
}
if r.URL.RawQuery != "" {
httpserve.NeverExpires(w)
}
http.ServeContent(w, r, r.URL.Path, modtime, seeker)
f.Close()
}
}
func (t *Template) prepareAssets() error {
groups, err := t.preparedAssetsGroups(t.vars, t, nil)
if err != nil {
return err
}
if err := sortGroups(groups); err != nil {
return err
}
var top bytes.Buffer
var bottom bytes.Buffer
for _, group := range groups {
// Only bundle and use CDNs in non-debug mode
if !t.Debug {
if group[0].Options.Bundle() || group[0].Options.Bundable() {
bundled, err := assets.Bundle(group, group[0].Options)
if err == nil {
group = []*assets.Group{
&assets.Group{
Manager: group[0].Manager,
Assets: []*assets.Asset{bundled},
Options: group[0].Options,
},
}
} else {
var names []string
for _, g := range group {
for _, a := range g.Assets {
names = append(names, a.Name)
}
}
log.Errorf("error bundling assets %s: %s - using individual assets", names, err)
}
} else if group[0].Options.Cdn() {
for _, g := range group {
var groupAssets []*assets.Asset
for _, a := range g.Assets {
cdnAssets, err := assets.CdnAssets(g.Manager, a)
if err != nil {
if !g.Manager.Has(a.Name) {
return fmt.Errorf("could not find CDN for asset %q: %s", a.Name, err)
}
log.Warningf("could not find CDN for asset %q: %s - using local copy", a.Name, err)
groupAssets = append(groupAssets, a)
continue
}
groupAssets = append(groupAssets, cdnAssets...)
}
g.Assets = groupAssets
}
}
}
for _, g := range group {
for _, v := range g.Assets {
switch v.Position {
case assets.Top:
if err := assets.RenderTo(&top, g.Manager, v); err != nil {
return fmt.Errorf("error rendering asset %q", v.Name)
}
top.WriteByte('\n')
case assets.Bottom:
if err := assets.RenderTo(&bottom, g.Manager, v); err != nil {
return fmt.Errorf("error rendering asset %q", v.Name)
}
bottom.WriteByte('\n')
default:
return fmt.Errorf("asset %q has invalid position %s", v.Name, v.Position)
}
}
}
}
t.topAssets = top.Bytes()
t.bottomAssets = bottom.Bytes()
return nil
}
func Bundle(groups []*Group, opts Options) (*Asset, error) {
assetType := Type(-1)
var names []string
for _, group := range groups {
for _, v := range group.Assets {
if v.Type == TypeOther {
return nil, fmt.Errorf("asset %q does not specify a Type and can't be bundled", v.Name)
}
if assetType < 0 {
assetType = v.Type
} else if assetType != v.Type {
return nil, fmt.Errorf("asset %q has different code type %s (first asset is of type %s)", v.Name, v.Type, assetType)
}
names = append(names, v.Name)
}
}
bundler := bundlers[assetType]
if bundler == nil {
return nil, fmt.Errorf("no bundler for %s", assetType)
}
// Prepare the code, changing relative paths if required
name, err := bundleName(groups, assetType.Ext(), opts)
if err != nil {
return nil, err
}
// The bundle is output to the first manager
m := groups[0].Manager
// Check if the code has been already bundled
if m.Has(name) {
log.Debugf("%s already bundled into %s and up to date", names, name)
} else {
dir := path.Dir(name)
log.Debugf("bundling %v", names)
var code []string
for _, group := range groups {
for _, v := range group.Assets {
c, err := v.Code(group.Manager)
if err != nil {
return nil, fmt.Errorf("error getting code for asset %q: %s", v.Name, err)
}
if vd := path.Dir(v.Name); vd != dir {
if assetType == TypeCSS {
log.Debugf("asset %q will move from %v to %v, rewriting relative paths...", v.Name, vd, dir)
c = replaceRelativePaths(c, vd, dir)
} else {
log.Warningf("asset %q will move from %v to %v, relative paths might not work", v.Name, vd, dir)
}
}
code = append(code, c)
}
}
// Bundle to a buf first. We don't want to create
// the file if the bundling fails.
var buf bytes.Buffer
allCode := strings.Join(code, "\n\n")
reader := strings.NewReader(allCode)
if err := bundler.Bundle(&buf, reader, opts); err != nil {
return nil, err
}
s := makeLinksCacheable(m, dir, buf.Bytes())
initial := len(allCode)
final := len(s)
var percent float64
if initial != 0 {
percent = float64(final) / float64(initial) * 100
}
log.Debugf("reduced size from %s to %s (%.2f%%)", formatutil.Size(uint64(initial)),
formatutil.Size(uint64(final)), percent)
w, err := m.Create(name, true)
if err == nil {
if _, err := io.Copy(w, strings.NewReader(s)); err != nil {
w.Close()
return nil, err
}
if err := w.Close(); err != nil {
return nil, err
}
} else {
// If the file exists, is up to date
if !os.IsExist(err) {
return nil, err
}
}
}
return &Asset{
Name: name,
Type: assetType,
Attributes: groups[0].Assets[0].Attributes,
Position: groups[0].Assets[0].Position,
}, nil
}
