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Document EnvVar change

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This commit is contained in:
Tom Limoncelli 2020-05-12 08:11:29 -04:00
parent 61026898ff
commit 42aad27f4c
1 changed files with 23 additions and 3 deletions
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docs/migrate-v1-to-v2.md
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@ -16,6 +16,7 @@ consider sending a PR to help improve this guide.
* [Flags before args](#flags-before-args) * [Flags before args](#flags-before-args)
* [Import string changed](#import-string-changed) * [Import string changed](#import-string-changed)
* [Flag aliases are done differently.](#flag-aliases-are-done-differently) * [Flag aliases are done differently.](#flag-aliases-are-done-differently)
* [EnvVar is now a list (EnvVars)](#envvar-is-now-a-list-envvars)
* [Commands are now lists of pointers](#commands-are-now-lists-of-pointers) * [Commands are now lists of pointers](#commands-are-now-lists-of-pointers)
* [Lists of commands should be pointers](#lists-of-commands-should-be-pointers) * [Lists of commands should be pointers](#lists-of-commands-should-be-pointers)
* [cli.Flag changed](#cliflag-changed) * [cli.Flag changed](#cliflag-changed)
@ -59,19 +60,38 @@ Change `Name: "foo, f"` to `Name: "foo", Aliases: []string{"f"}`
* OLD: * OLD:
```go ```go
cli.StringFlag{ cli.StringFlag{
Name: "config, cfg" Name: "config, cfg"
} }
``` ```
* NEW: * NEW:
```go ```go
cli.StringFlag{ cli.StringFlag{
Name: "config", Name: "config",
Aliases: []string{"cfg"}, Aliases: []string{"cfg"},
} }
``` ```
Sadly v2 doesn't warn you if a comma is in the name. Sadly v2 doesn't warn you if a comma is in the name.
(https://github.com/urfave/cli/issues/1103)
# EnvVar is now a list (EnvVars)
Change `EnvVar: "XXXXX"` to `EnvVars: []string{"XXXXX"}` (plural).
* OLD:
```go
cli.StringFlag{
EnvVar: "APP_LANG"
}
```
* NEW:
```go
cli.StringFlag{
EnvVars: []string{"APP_LANG"}
}
```
# Actions returns errors # Actions returns errors