lerna-script

For usage scenarios documentation please see root of repo;

CLI

lerna-script exports a cli script:

lerna-script [options] <task>

where options:

• loglevel - set's loglevel, defaults to info;

task:

• one of exports defined in lerna.js file.

API

loadPackages({[log], [packageConfigs]}): Promise[LernaPackages[]]

Returns list of packages/modules in repo - forward to lerna;

Parameters:

• log, optional - npmlog logger;

loadRootPackage({[log]}): Promise[LernaPackage[]]

Returns Package of root module.

Parameters:

• log, optional - npmlog logger;

iter.forEach(lernaPackages, {[log], [build]})(task): Promise

Executed provided command for all lernaPackages in a serial fashion. taskFn can be either sync task or return a Promise.

Parameters:

• lernaPackages - list of lerna packages to iterate on;
• log - logger to be used for progress and pass-on to nested tasks;
• build - should a module be built as in changes.build;
• task - function to execute with signature (lernaPackage, log) => Promise.

Returns promise with task results.

iter.parallel(lernaPackages, {[log], [build], [concurrency]})(task): Promise

Executed provided command for all lernaPackages in a parallel fashion(Promise.all). taskFn can be either sync task or return a Promise.

Parameters:

• lernaPackages - list of lerna packages to iterate on;
• log - logger to be used for progress and pass-on to nested tasks;
• build - should a module be built as in changes.build;
• task - function to execute with signature (lernaPackage, log) => Promise.
• concurrency - number, defaults to Infinity. See bluebird#map API

Returns promise with task results.

iter.batched(lernaPackages, {[log], [build]})(task): Promise

Executed provided command for all lernaPackages in a batched fashion respecting dependency graph. taskFn can be either sync task or return a Promise.

Parameters:

• lernaPackages - list of lerna packages to iterate on;
• log - logger to be used for progress and pass-on to nested tasks;
• build - should a module be built as in changes.build;
• task - function to execute with signature (lernaPackage, log) => Promise.

Returns promise without results (undefined).

exec.command(lernaPackage, {silent = true})(command): Promise(stdout)

Executes given command for a package and returns collected stdout.

Note that command is a single command, meaning rm -f zzz and not ex. rm -f zzz && mkdir zzz. It's just for convenience you can provide command and args as a single string.

Argument list #1:

• command - command to execute;

Argument list #2:

• lernaPackage - package returned either by rootPackage() or packages();
• silent - should command output be streamed to stdout/stderr or suppressed. Defaults to true;

Returns:

• stdout - collected output;

exec.script(lernaPackage, {silent = true})(script): Promise(stdout)

Executes given npm script for a package and returns collected stdout.

Argument list #1:

• script - npm script to execute;

Argument list #2:

• lernaPackage - package returned either by rootPackage() or packages();
• silent - should script output be streamed to stdout/stderr or suppressed. Defaults to true;

Returns:

• stdout - collected output;

changes.build(lernaPackage, {[log]})([label]): undefined

Marks package as built.

Parameters:

• lernaPackage - package to build;
• log, optional - npmlog logger;
• label, optional - given you have several exports scripts, you can separate them in different build/unbuild groups by label.

changes.unbuild(lernaPackage, {[log]})([label]): undefined

Marks package as unbuilt.

Parameters:

• lernaPackage - package to unbuild;
• log, optional - npmlog logger;
• label, optional - given you have several exports scripts, you can separate them in different build/unbuild groups by label

changes.isBuilt(lernaPackage)([label]): boolean

Returns true if package is build and false otherwise.

Parameters:

• lernaPackage - package to unbuild;
• label, optional - given you have several exports scripts, you can separate them in different build/unbuild groups by label

filters.removeBuilt(lernaPackages: [], {[log]})([label]: String): []

Filters-out packages that have been marked as built changes.build and were not changed since. Note that it filters-out also dependent packages, so if:

• a, did not change, depends on b;
• b, changed;
• c, not changed, no inter-project dependencies.

Then it will return only c as b has changed and a depends on b, so it needs to be rebuilt/retested/re...

Parameters:

• lernaPackages - packages to filter;
• log, optional - npmlog logger;
• label, optional - given you have several exports scripts, you can separate them in different build/unbuild groups by label

Note: this filter mutates built/unbuild state, meaning that it unbuilds dependents to get reproducible runs.

filters.gitSince(lernaPackages: [], {[log]})(refspec: String, {ignoreChanges: string[]}?): []

Filters-out packages that have did not change since refspec - ex. master, brach, tag.

Parameters:

• lernaPackages - packages to filter;
• log, optional - npmlog logger;
• refspec - git refspec = master, branchname, tag...
• opts.ignoreChanges - optional array of glob expressions. files matching those globs will be ignored in the diff calculation.

filters.removeByGlob(lernaPackages: [], {[log]})(glob: String): []

Filters-out packages by provided glob pattern.

Parameters:

• lernaPackages - packages to filter;
• log, optional - npmlog logger;
• glob - glob pattern.

filters.includeFilteredDeps(lernaPackages: [], {[log]})(filteredPackages: []): []

Returns a list of packages tgat includes dependencies of filteredPackages that are in lernaPackages.

Parameters:

• lernaPackages - all packages;
• log, optional - npmlog logger;
• filteredPackages - subset of lernaPackages.

fs.readFile(lernaPackage)(relativePath, converter: buffer => ?): Promise[?]

Reads a file as string by default or accepts a custom converter.

Parameters:

• lernaPackage - a lerna package for cwd of reading;
• relativePath - file path relative to lernaPackage root.
• converter - a function to convert content, ex. JSON.parse

fs.writeFile(lernaPackage)(relativePath, content, converter: type => string): Promise[String]

Writes string/buffer to file, accepts custom formatter.

Automatically detects and formats object.

Parameters:

• lernaPackage - a lerna package for cwd of reading;
• relativePath - file path relative to lernaPackage root.
• content - content of file.
• converter - function to convert provided type to string/buffer.