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feat(tools/tvlc): pass list of derivations to depot-scanner

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You can now provide a list of Nix derivations to tvlc to get a git worktree + sparse-checkout containing only the paths needed to build the specified derivations.

Known bugs: even though //third_party is only passed to readdir(), git doesn't know this and includes all of //third_party/*.

Change-Id: I9dccebd3fbff4bb04ebd568175cf0a7e37d71ab3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1826
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
This commit is contained in:
Kane York 2020-08-20 18:15:33 -07:00 • committed by kanepyork
parent e539242032
commit a9650041bb
4 changed files with 36 additions and 7 deletions
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10
tools/depot-scanner/main.go
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@ -18,6 +18,7 @@ var nixStoreRoot = flag.String("store-path", "/nix/store/", "prefix for all vali
var modeFlag = flag.String("mode", modeArchive, "operation mode. valid values: tar, print")
var onlyFlag = flag.String("only", "", "only enable the listed output types, comma separated. valid values: DEPOT, STORE, CORE, UNKNOWN")
var relativeFlag = flag.Bool("relpath", false, "when printing paths, print them relative to the root of their path type")
const (
modeArchive = "tar"
@ -164,16 +165,25 @@ func main() {
if *modeFlag == "print" {
if enabledPathTypes[pb.PathType_STORE] {
for k, _ := range results[nixStorePath] {
if *relativePath {
k = strings.TrimPrefix(k, *nixStoreRoot)
k = strings.TrimPrefix(k, "/")
}
fmt.Println(k)
}
}
if enabledPathTypes[pb.PathType_DEPOT] {
for k, _ := range results[depotPath] {
if *relativeFlag {
k = strings.TrimPrefix(k, *depotRoot)
k = strings.TrimPrefix(k, "/")
}
fmt.Println(k)
}
}
if enabledPathTypes[pb.PathType_CORE] {
for k, _ := range results[corePkgsPath] {
// TODO relativeFlag
fmt.Println(k)
}
}