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Args - Bazel Args are constructed by calling ctx actions args() They can be passed as the arguments parameter of ctx actions run() or ctx actions run_shell() Each mutation of an Args object appends values to the eventual command line
actions - Bazel 3. 5. 1 Access this module using ctx actions Returns an Args object that can be used to build memory-efficient command lines Declares that the rule or aspect creates a directory with the given name, in the current package You must create an action that generates the directory
Practical Bazel: Use ctx. actions. args () to Form Arguments Lists However, it is both more efficient and better style to create the arguments list using ctx actions args() Furthermore, the args object will automatically handle any path vs short_path differences for you
Understanding inputs parameter of Bazel run action The arguments parameter of ctx actions run tells Bazel what the command line for the executable of the action is If your executable takes flags like --input and --output, you'd use arguments to construct a command line like --input artifact1 --input artifact2 --output artifact3
actions. run `arguments` are not passed when executing a test rule . . . You can't use ctx actions run to define the test runner action; instead, the test rule must return a self-contained executable (to be invoked with no command line arguments) and a set of runfiles (other files that must be available in the test environment) Something along these lines:
actions - Bazel Access this module using ctx actions Returns an Args object that can be used to build memory-efficient command lines Declares that the rule or aspect creates a directory with the given name, in the current package You must create an action that generates the directory
Writing Bazel rules: moving logic to execution — jayconrod. com We are using Args (obtained from ctx actions args) to build our argument list There are a couple advantages to using Args instead of building a list of strings First, there are several conveniences: you don't have to convert Files to strings, and there are useful facilities for formatting lists of options
ctx - Bazel 2. 1. 0 Command line arguments of the action Must be a list of strings or actions args () objects A one-word description of the action, e g CppCompile or GoLink Shell command to execute It is usually preferable to use executable instead Arguments are available with $1, $2, etc
Why is Bazel run_shell not placing arguments correctly? That is the documented semantics of passing string to the command parameter of run_shell Something like this should work: ctx actions run_shell( outputs = [dst], inputs = [src], command = "cp $1 $2", arguments = [src path, dst path]
ctx - Bazel Returns a tuple (inputs, empty list) of the depset of resolved inputs required to run the tools, suitable for passing as the same-named argument of the ctx actions run and ctx actions run_shell methods