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Merge "Freeze environment reading after saving deps"

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Dan Willemsen 2015-09-15 23:57:07 +00:00 committed by Gerrit Code Review
commit 8a12ccd282
1 changed files with 9 additions and 2 deletions
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11
common/config.go
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@ -48,8 +48,9 @@ type config struct {
srcDir string // the path of the root source directory
envLock sync.Mutex
envDeps map[string]string
envLock sync.Mutex
envDeps map[string]string
envFrozen bool
}
type jsonConfigurable interface {
@ -178,6 +179,9 @@ func (c *config) Getenv(key string) string {
var exists bool
c.envLock.Lock()
if val, exists = c.envDeps[key]; !exists {
if c.envFrozen {
panic("Cannot access new environment variables after envdeps are frozen")
}
val = os.Getenv(key)
c.envDeps[key] = val
}
@ -186,6 +190,9 @@ func (c *config) Getenv(key string) string {
}
func (c *config) EnvDeps() map[string]string {
c.envLock.Lock()
c.envFrozen = true
c.envLock.Unlock()
return c.envDeps
}