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October 21, 2019 10:21
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Generate quickest Maven script for the pending changes in a Git checkout
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| #!/bin/python3 | |
| # See https://paulhammant.com/2019/10/20/quicker-local-maven-builds | |
| import sh, os | |
| from pathlib import Path | |
| log = sh.git.log("--oneline", "--no-color", "--decorate=short", _tty_out=False) | |
| hashLine = "" | |
| for line in log.split("\n"): | |
| if ' (origin/master,' in line: | |
| hashLine = line | |
| break | |
| if 'master, origin/master' in line: | |
| hashLine = line | |
| break | |
| if (len(hashLine) is 0): | |
| print("Could not determine origin/master SHA1") | |
| exit(1) | |
| originHash = hashLine.split(" ")[0] | |
| diffFiles = sh.git.diff("--name-status", originHash, _tty_out=False) | |
| allModules = [] | |
| for filename in Path('.').glob('**/pom.xml'): | |
| allModules.append(str(filename).split("/pom.xml")[0]) | |
| allModulesWithSourceTrees = [] | |
| for filename in Path('.').glob('**/src/main'): | |
| srcDir = str(filename).split("/src/main")[0] | |
| if srcDir in allModules and srcDir not in allModulesWithSourceTrees: | |
| allModulesWithSourceTrees.append(srcDir) | |
| impactedProdModules = [] | |
| impactedTestModules = [] | |
| for diffFile in diffFiles: | |
| file = diffFile.split("\t")[1].strip() | |
| for m in allModulesWithSourceTrees: | |
| if file.startswith(m) and "src/test/" not in file and m not in impactedProdModules: | |
| impactedProdModules.append(m) | |
| impactedTestModules.append(m) | |
| if file.startswith(m) and "src/test/" in file and m not in impactedTestModules: | |
| impactedTestModules.append(m) | |
| with open(".mvnCommands.sh", 'w') as out: | |
| out.write("#!/bin/sh\n\nset -e\n\n") | |
| out.write("mvn install -DskipTests -pl " + ",".join(impactedProdModules) + "\n\n") | |
| out.write("mvn test -Dmaven.main.skip -pl " + ",".join(impactedTestModules) + "\n\n") | |
| os.chmod(".mvnCommands.sh", 0o775) | |
| print(".mvnCommands.sh updated") |
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