| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "fmt" |
| 5 | "io" |
| 6 | ) |
| 7 | |
| 8 | // printAppRegion is spec §11's one line after "created app …": nothing on |
| 9 | // a single-region deployment, C13a when an older console ignored --region, |
| 10 | // C13b when a console with the switch off did, else C9 to C12 by source. |
| 11 | // |
| 12 | // C13b is decided by the source, not by comparing codes: a console that |
| 13 | // applied --region answers source "chosen", so any other source after an |
| 14 | // explicit --region means it was ignored. Comparing codes misses --region |
| 15 | // <the home> against a switch-off console, which answers the home itself. |
| 16 | // |
| 17 | // An empty region_source with a region present means the console could not |
| 18 | // read the stored region back (it then answers the home with no source). That |
| 19 | // says nothing about whether --region was applied, so it prints nothing: not |
| 20 | // C13b, and not a C9 to C12 line that would name a source nobody knows. |
| 21 | // |
| 22 | // onFleet is true when the create named a fleet (--place fleet/<name>). The |
| 23 | // fleet governs where its instances run, so C13b ("--region was not applied", |
| 24 | // "this app's instances start in <home>") would be wrong: it prints nothing. |
| 25 | func printAppRegion(w io.Writer, res apiCreateAppResult, asked string, onFleet bool) { |
| 26 | switch { |
| 27 | case res.Region == "" && res.RegionSource == "": |
| 28 | if asked != "" { |
| 29 | fmt.Fprintln(w, regionNotRecordedOldConsole) |
| 30 | } |
| 31 | case res.RegionSource == "": |
| 32 | // Region read-back failed on the console. Say nothing. |
| 33 | case asked != "" && res.RegionSource != "chosen" && onFleet: |
| 34 | // The fleet decides placement. Say nothing. |
| 35 | case asked != "" && res.RegionSource != "chosen": |
| 36 | fmt.Fprintln(w, regionNotAppliedSwitchOff(res.RegionName)) |
| 37 | case res.RegionsAvailable >= 2: |
| 38 | fmt.Fprintln(w, regionCreatedLine(res.RegionName, res.RegionSource)) |
| 39 | } |
| 40 | } |
| 41 | |
amadan