为什么鲍尔不更新我的angular呢？

Question

我有angular 1.2.3，我想升级到1.2.7

> cat bower.json
...
  "dependencies": {
    "json3": "~3.2.4",
    "jquery": "~1.9.1",
    "es5-shim": "~2.0.8",
    "toastr": "~2.0.1",
    "angular-ui-tinymce": "latest",
    "underscore": "~1.5.2",
    "underscore.string": "~2.3.3",
    "angular-ui-utils": "~0.0.4",
    "angular-dragdrop": "~1.0.5",
    "angular-cookies": "~1.2.3",
    "angular-animate": "~1.2.3",
    "angular-resource": "~1.2.3",
    "angular": "~1.2.3"
  },
  "devDependencies": {
    "angular-mocks": "~1.2.3",
    "bootstrap": "~3.0.1",
    "font-awesome": "~4.0.3",
    "angular-bootstrap-affix": "~0.3.0"
  }
...

我甚至不知道下面的输出是什么意思……，它在做什么？

> bower update angular
bower angular#~1.x              cached git://github.com/angular/bower-angular.git#1.2.7
bower angular#~1.x            validate 1.2.7 against git://github.com/angular/bower-angular.git#~1.x
bower angular#>= 1.0.2          cached git://github.com/angular/bower-angular.git#1.2.7
bower angular#>= 1.0.2        validate 1.2.7 against git://github.com/angular/bower-angular.git#>= 1.0.2
bower angular#1.2.3             cached git://github.com/angular/bower-angular.git#1.2.3
bower angular#1.2.3           validate 1.2.3 against git://github.com/angular/bower-angular.git#1.2.3
bower angular#~1.2.3            cached git://github.com/angular/bower-angular.git#1.2.7
bower angular#~1.2.3          validate 1.2.7 against git://github.com/angular/bower-angular.git#~1.2.3
bower angular#~1.x                 new version for git://github.com/angular/bower-angular.git#~1.x
bower angular#~1.x             resolve git://github.com/angular/bower-angular.git#~1.x
bower angular#>= 1.0.2             new version for git://github.com/angular/bower-angular.git#>= 1.0.2
bower angular#>= 1.0.2         resolve git://github.com/angular/bower-angular.git#>= 1.0.2
bower angular#~1.2.3               new version for git://github.com/angular/bower-angular.git#~1.2.3
bower angular#~1.2.3           resolve git://github.com/angular/bower-angular.git#~1.2.3
bower angular#~1.x            download https://github.com/angular/bower-angular/archive/v1.2.8-build.2095+sha.28fc80b.tar.gz
bower angular#>= 1.0.2        download https://github.com/angular/bower-angular/archive/v1.2.8-build.2095+sha.28fc80b.tar.gz
bower angular#~1.2.3          download https://github.com/angular/bower-angular/archive/v1.2.8-build.2095+sha.28fc80b.tar.gz
bower angular#>= 1.0.2         extract archive.tar.gz
bower angular#>= 1.0.2        resolved git://github.com/angular/bower-angular.git#1.2.8-build.2095+sha.28fc80b
bower angular#~1.x             extract archive.tar.gz
bower angular#~1.x            resolved git://github.com/angular/bower-angular.git#1.2.8-build.2095+sha.28fc80b
bower angular#~1.2.3           extract archive.tar.gz
bower angular#~1.2.3          resolved git://github.com/angular/bower-angular.git#1.2.8-build.2095+sha.28fc80b

什么都没变？我还在1.2.3版本上

> git diff
diff --git a/ngapp/app/bower_components/angular/.bower.json b/ngapp/app/bower_components/angular/.bower.json
index dc9d0b6..842a1f3 100644
--- a/ngapp/app/bower_components/angular/.bower.json
+++ b/ngapp/app/bower_components/angular/.bower.json
@@ -11,6 +11,6 @@
     "commit": "b112b099971f4cf016023bdeb00b267e9bf6dfb5"
   },
   "_source": "git://github.com/angular/bower-angular.git",
-  "_target": "~1.2.3",
+  "_target": "1.2.3",
   "_originalSource": "angular"
 }

> bower --version
1.2.8

我是不是遗漏了什么？

> bower info angular
.... shows all versions including 1.2.7 and 1.2.8-builds as well

Answer 1

我认为你的依赖关系阻碍了你孤立地更新angular。例如，看看bower_components/angular-route/bower.json。你会看到一个特定版本的angular被列为依赖项("1.2.3")，而不是~/“相当接近”的说明符("~1.2.3")。所以你只想更新angular，但bower最多只能更新你的angular的当前版本，因为你有其他完全依赖于该版本的包。

如果你使用bower update，那么bower将有机会更新你的所有软件包，包括angular-route和其他阻碍angular的软件包。对这些包的更新现在将允许bower在满足依赖性的同时更新angular。此外，我认为如果您根据特定的angular版本标识所有这些包(您可以使用bower list查看依赖关系)，并将它们作为参数传递(如bower update angular angular-mocks angular-resource angular-route angular-sanitize... )，那么bower也可以执行更新。

Answer 2

我想问题出在这里

"angular": "~1.2.3" 

https://github.com/isaacs/node-semver/

"Reasonably close to 1.2.3". 

因此您应该使用以下命令更改它

"angular": "1.2.7" 

更新：(它在评论中，但我认为最好指出它)

请注意，您不能将包名称传递给update命令并仅更新单个包:它仍然会更新所有包。您可以通过运行bower install获得单个包的最新版本；它只会覆盖您当前拥有的版本