Is there a way to see how packages in my flutter project depend on each other?
Under packages, I mean internal packages: folders under 'lib'.
Also, it would be great to check for circular dependencies between the packages.
You can use below command to see your flutter app's dependency graph.
flutter pub deps
The dependency information is printed as a tree, a list, or a compact list.
I was also looking for a tool to show internal dependencies but couldn't find one. So I wrote a tool called Lakos to visualize Dart/Flutter library dependencies in Graphviz. Lakos will visualize dependencies inside your project, not external package dependencies. Lakos will also warn about dependency cycles with an exit code.
https://pub.dev/packages/lakos
Example usage:
lakos --metrics . | dot -Tpng -Gdpi=200 -o lakos_example.png
The output will look similar to this:
Layerlens can auto-generate dependency diagrams for your project.
Related
When running an SBT compile, I can see a specific dependency with a specific version coming in in the build log:
[info] Resolving junit#junit;4.12 ...
This dependency is not mentioned explicity in any of the build.sbt files, so it is either coming in as a transitive dependency or maybe from the Play framework itself.
Any idea how I can trace the exact source of this particular Junit version dependency? I have already tried to get it from the SBT dependency tree. However, this includes only the same "Resolving..." msg, but not where it's been resolved from.
Thanks!
Before there was a plugin for inspecting dependencies: sbt-dependency-graph. Now (since sbt 1.4) it's part of the core sbt and can be enabled by adding addDependencyTreePlugin to your project/plugins.sbt file. Then you can use commands like whatDependsOn:
whatDependsOn <organization> <module> <revision>?: Find out what depends on an artifact. Shows a reverse dependency tree for the selected module. The <revision> argument is optional.
Or, if it doesn't help, run dependencyBrowseGraph or dependencyBrowseTree, and inspect the graph/tree (there is a search field).
When I do a fresh git clone of the greenDAO repo, import the project with Android Studio, and try to compile, references to all the Android objects throw Unresolved Symbol/Method errors. Similarly, the Android specific import statements are also unresolved.
I've gotten as far as realizing that the build.gradle files don't call apply plugin: 'android', but instead lists dependencies like:
dependencies {
provided 'com.google.android:android:4.1.1.4'
provided 'com.google.android:android-test:4.1.1.4'
provided 'com.google.android:annotations:4.1.1.4'
provided 'com.google.android:support-v4:r7'
provided 'com.google.android:support-v4:r7'
...
}
I've used the SDK manager to make sure I have all the files for API v4.1 installed. I also know how to use greenDAO by using the Maven repos and/or importing JARs. My problem is specific to building from source.
Update 1: As stated, when using provided, none of the Android files are found.
I don't have enough reputation to post images, but you can find a screenshot here.
My build.sbt has a lot of dependencies now. How do I know which dependencies are actually being used?
Maven seems to have dependency:analyse http://maven.apache.org/plugins/maven-dependency-plugin/
Is there something similar for sbt?
There is the sbt-explicit-dependencies plugin, which has been developed recently. It has direct commands in the SBT console to:
Enforce explicit direct declaration of dependencies, thus disallowing transitive dependencies.
Detect and remove unneeded dependencies.
you can use sbt-dependency-graph plugin. it shows dependencies in different graphical representations. also you can try to use tattletale, but it's not integrated with sbt. it'll require you to copy managed dependencies (retrieveManaged := true). this tool not only shows dependency graph, but analyzes class usage and can display unused dependencies (including transitive)
I am building a Java (web) application with Maven and Eclipse.
When I look inside my .war file I can see the following logging libraries there:
log4j-1.2.14.jar
log4j-1.2.17.jar
slf4j-api-1.7.5.jar
slf4j-log4j12-1.7.5.jar
I did not declared these libraries in my pom.xml, so they probably are transitive dependencies (i.e. dependencies of my dependencies).
How can I find out which of my dependencies depend on these libraries?
I tried to use the mvn dependency:tree plugin, but it does not show any of these .jars.
In Eclipse, the Java Resources > Libraries > Maven Dependencies node does not show them either. Though, curiously, it shows other transitive dependencies of my project.
If you want to rely on maven only you may want to take a closer look on the dependency plugin, here are two examples:
mvn dependency:tree -Dverbose will display more detailed information - especially for example if a artifact will be omitted for conflicting with another artifacts version (e.g. convergence issue). It will also display you the hirachy with all the transitive dependencies.
To have a specific artefact analyzed (to for example find who delivers a specific transitive dependency) you can specify like so:
mvn dependency:tree -Dincludes=com.my.group.id:my-artefact-id:jar:1.0.1 -Dverbose
(Where you obviously need to adjust the artefact, packaging type and version according to your needs)
Open pom.xml in Eclipse and go to Dependency Hierarchy tab
![enter image description here][1]
It should show you the dependency tree in the Dependency Hierarchy tab. Evgeniy Dorofeev is right.
Something similar to the screenshot attached
you would probably have to expand all.
EDIT: Refined the answer.
Thats a little weird. But here is what i found.
If you go to http://mvnrepository.com/artifact/log4j/log4j/1.2.17
it will show you which dependencies are used and which does the jar file depend on.
The springframework dependency for web-mvc 3.2.4 would download the spring-core and the spring-core dependency uses log4j.
I'm currently using sbt to build and run my scala programs. I'm trying to use sbt.Process to execute system commands. I must be missing something because when I try to import sbt.Process in one of my files in src/ I get this error.
not found: value sbt
[error] import sbt.Process._
So it looks like I can't access the sbt package inside my src/ files. What do I need to do to access it? Thanks.
SBT's environment (v 0.7.x) is only available in your build file or a Plugin.
The easiest way to use sbt.Process library (until 0.9.x which will have Process as an independent library) is to copy (BSD License) Process.scala and ProcessImpl.scala into your project
There are different classpaths for running sbt and compiling your source files.
One classpath is for compilation of files in directory project/build (that one contains sbt jars and usually scala library 2.7.7) and the other one is for building source files of your project (that one contains your dependencies from lib and lib_managed and usually scala library 2.8.*). If you'd like to use sbt.Process in your source files you can do two things:
add sbt jar to lib or lib_managed for it to be available on your project's classpath
use snapshot version of scala 2.9, it would have sbt Process built-in as sys.process package
Wait for Scala 2.9, and then just use it out of scala.sys.process.
sbt package has became an integral part of the Scala standard library since version 2.9
...this API has been included in the Scala standard library for version 2.9.
quoted from sbt wiki
Here's the link (scroll down)
well, in order to use it, all you have to do (assuming you are using sbt for build), is to add in build.sbt file the following line of code: sbtPlugin := true it will add the needed dependencies to your project.
of course, this solution is only to get your imports with sbt package to work. you should refactor your code to use the new package scala.sys.process like Daniel C. Sobral suggested.