# Copyright (C) 2016 and later: Unicode, Inc. and others. # License & terms of use: http://www.unicode.org/copyright.html # Copyright (C) 2010-2014, International Business Machines Corporation and others. # All Rights Reserved. # # Commands for regenerating ICU4C locale data (.txt files) from CLDR, # updated to apply to CLDR 37 / ICU 67 and later versions. # # The process requires local copies of # - CLDR (the source of most of the data, and some Java tools) # - The complete ICU source tree, including: # tools - includes the LdmlConverter build tool and associated config files # icu4c - the target for converted CLDR data, and source for ICU4J data; # includes tests for the converted data # icu4j - the target for updated data jars; includes tests for the converted # data # # For an official CLDR data integration into ICU, these should be clean, freshly # checked-out. For released CLDR sources, an alternative to checking out sources # for a given version is downloading the zipped sources for the common (core.zip) # and tools (tools.zip) directory subtrees from the Data column in # [http://cldr.unicode.org/index/downloads]. # # The versions of each of these must match. Included with the release notes for # ICU is the version number and/or a CLDR git tag name for the revision of CLDR # that was the source of the data for that release of ICU. # # Besides a standard JDK, the process also requires ant and maven # (http://ant.apache.org/), # plus the xml-apis.jar from the Apache xalan package # (http://xml.apache.org/xalan-j/downloads.html). # # Note: Enough things can (and will) fail in this process that it is best to # run the commands separately from an interactive shell. They should all # copy and paste without problems. # # It is often useful to save logs of the output of many of the steps in this # process. The commands below put log files in /tmp; you may want to put them # somewhere else. # #---- # # There are several environment variables that need to be defined. # # a) Java- and ant-related variables # # JAVA_HOME: Path to JDK (a directory, containing e.g. bin/java, bin/javac, # etc.); on many systems this can be set using # `/usr/libexec/java_home`. # # ANT_OPTS: You may want to set: # # -Xmx4096m, to give Java more memory; otherwise it may run out # of heap. # # b) CLDR-related variables # # CLDR_DIR: For most of the process, this is the path to the to root of # standard CLDR sources, below which are the common and # tools directories. For running LdmlConverter, this needs to be # temporarily reset to the parallel root for the production data, # corresponding to $CLDR_TMP_DIR/production (see description of # CLDR_TMP_DIR below). # CLDR_CLASSES: Path to the CLDR Tools classes directory. If not set, defaults # to $CLDR_DIR/tools/java/classes # # CLDR_TMP_DIR: Parent of temporary CLDR production data. # Defaults to $CLDR_DIR/../cldr-aux (sibling to CLDR_DIR). # # *** NOTE ***: In CLDR 36 and 37, the GenerateProductionData tool # no longer generates data by default into $CLDR_TMP_DIR/production; # instead it generates data into $CLDR_DIR/../cldr-staging/production # (though there is a command-line option to override this). However # the rest of the build still assumes that the generated data is in # $CLDR_TMP_DIR/production. So CLDR_TMP_DIR must be defined to be # $CLDR_DIR/../cldr-staging # # c) ICU-related variables # These variables only need to be set if you're directly reusing the # commands below. # # ICU4C_DIR: Path to root of ICU4C sources, below which is the source dir. # # ICU4J_ROOT: Path to root of ICU4J sources, below which is the main dir. # # TOOLS_ROOT: Path to root of ICU tools directory, below which is (e.g.) the # cldr and unicodetools dirs. # #---- # # If you are adding or removing locales, or specific kinds of locale data, # there are some xml files in the ICU sources that need to be updated (these xml # files are used in addition to the CLDR files as inputs to the CLDR data build # process for ICU): # # The primary file to edit for ICU 67 and later is # # $TOOLS_ROOT/cldr/cldr-to-icu/build-icu-data.xml # # The files used in previous versions are the following. These are not used in # the ICU-67-and-later process, but for now they should be kept up to date to # enable parallel use of the older build process for verification. # # $ICU4C_DIR/source/data/icu-config.xml - Update to add or remove # CLDR locales for inclusion in ICU. Update to prefer # alt forms for certain paths, or to exclude certain paths; note # that items can only have draft or alt attributes. # # Note that if a language-only locale (e.g. "de") is included in # , then all region sublocales for that language that # are present in CLDR data (e.g. "de_AT", "de_BE", "de_CH", etc.) # should also be included in , per PMC policy decision # 2012-05-02 (see http://bugs.icu-project.org/trac/ticket/9298). # # $ICU4C_DIR/source/data/build.xml - If you are adding or removing break # iterators, you need to update under # to clean the correct set of files. # # If there are new CLDR resource bundle types, you may need to # updated the sections to put these in the correct # data subfolder for ICU. # # $ICU4C_DIR/source/data/xml/ - If you are adding a new locale, break # iterator, collation tailoring, or rule-based number formatter, # you may need to add a corresponding xml file in (respectively) # the main/, brkitr/, collation/, or rbnf/ subdirectory here. # #---- # # For an official CLDR data integration into ICU, there are some additional # considerations: # # a) Don't commit anything in ICU sources (and possibly any changes in CLDR # sources, depending on their nature) until you have finished testing and # resolving build issues and test failures for both ICU4C and ICU4J. # # b) There are version numbers that may need manual updating in CLDR (other # version numbers get updated automatically, based on these): # # common/dtd/ldml.dtd - update cldrVersion # common/dtd/ldmlBCP47.dtd - update cldrVersion # common/dtd/ldmlSupplemental.dtd - update cldrVersion # common/dtd/ldmlSupplemental.dtd - updateunicodeVersion # keyboards/dtd/ldmlKeyboard.dtd - update cldrVersion # tools/java/org/unicode/cldr/util/CLDRFile.java - update GEN_VERSION # # c) After everything is committed, you will need to tag the CLDR and ICU # sources that ended up being used for the integration; see step 16 # below. # ################################################################################ # 1a. Java and ant variables, adjust for your system export JAVA_HOME=`/usr/libexec/java_home` export ANT_OPTS="-Xmx4096m # 1b. CLDR variables, adjust for your setup; with cygwin it might be e.g. # CLDR_DIR=`cygpath -wp /build/cldr` export CLDR_DIR=$HOME/cldr-myfork # 1c. ICU variables export ICU4C_DIR=$HOME/icu-myfork/icu4c export ICU4J_ROOT=$HOME/icu-myfork/icu4j export TOOLS_ROOT=$HOME/icu-myfork/tools # 2. Build the CLDR Java tools and jar cd $CLDR_DIR/tools/java ant clean ant all ant jar # 2a. Copy the CLDR jars into $TOOLS_ROOT/cldr/cldr-to-icu/lib/ maven repository; # see $TOOLS_ROOT/cldr/cldr-to-icu/lib/README.txt cd $TOOLS_ROOT/cldr/cldr-to-icu/lib/ mvn install:install-file \ -DgroupId=org.unicode.cldr \ -DartifactId=cldr-api \ -Dversion=0.1-SNAPSHOT \ -Dpackaging=jar \ -DgeneratePom=true \ -DlocalRepositoryPath=. \ -Dfile=$CLDR_DIR/tools/java/cldr.jar cd $TOOLS_ROOT/cldr/cldr-to-icu/lib/ mvn install:install-file \ -DgroupId=com.ibm.icu \ -DartifactId=icu-utilities \ -Dversion=0.1-SNAPSHOT \ -Dpackaging=jar \ -DgeneratePom=true \ -DlocalRepositoryPath=. \ -Dfile=$CLDR_DIR/tools/java/libs/utilities.jar cd $TOOLS_ROOT/cldr/cldr-to-icu/ mvn dependency:purge-local-repository -DsnapshotsOnly=true # 3. Configure ICU4C, build and test without new data first, to verify that # there are no pre-existing errors. Here is the runConfigureICU # code for the platform you are building, e.g. Linux, MacOSX, Cygwin. cd $ICU4C_DIR/source ./runConfigureICU make clean make check 2>&1 | tee /tmp/icu4c-oldData-makeCheck.txt # 4a. Generate the CLDR production data. This process uses ant with ICU's # data/build.xml # # Running "ant cleanprod" is necessary to clean out the production data directory # (usually $CLDR_TMP_DIR/production ), required if any CLDR data has changed. # # Running "ant setup" is not required, but it will print useful errors to # debug issues with your path when it fails. cd $ICU4C_DIR/source/data ant cleanprod ant setup ant proddata 2>&1 | tee /tmp/cldr-newData-proddataLog.txt # 4b. Build the new ICU4C data files; these include .txt files and .py files. # These new files will replace whatever was already present in the ICU4C sources. # This process uses the LdmlConverter in $TOOLS_ROOT/cldr/cldr-to-icu/; # see $TOOLS_ROOT/cldr/cldr-to-icu/README.txt # # This process will take several minutes, during most of which there will be no log # output (so do not assume nothing is happening). Keep a log so you can investigate # anything that looks suspicious. # # This also requires temporarily redefining CLDR_DIR. # # Note that "ant clean" should not be run before this. The build-icu-data.xml process # will automatically run its own "clean" step to delete files it cannot determine to # be ones that it would generate, except for pasts listed in elements such as # coll/de__PHONEBOOK.txt, coll/de_.txt, etc. # # Before this step, make any necessary changes to # build-icu-data.xml$TOOLS_ROOT/cldr/cldr-to-icu/ to add new locales, etc. cd $TOOLS_ROOT/cldr/cldr-to-icu/ CLDR_DIR=$CLDR_TMP_DIR/production ant -f build-icu-data.xml | tee /tmp/cldr-newData-builddataLog.txt # 5. Check which data files have modifications, which have been added or removed # (if there are no changes, you may not need to proceed further). Make sure the # list seems reasonable. cd $ICU4C_DIR/source/data git status # 5a. You may also want to check which files were modified in CLDR production data: cd $CLDR_TMP_DIR git status # 6. Fix any errors, investigate any warnings. # # Fixing may entail modifying CLDR source data or TOOLS_ROOT config files or # tooling. # 7. Now rebuild ICU4C with the new data and run make check tests. # Again, keep a log so you can investigate the errors. cd $ICU4C_DIR/source # 7a. If any files were added or removed (likely), re-run configure: ./runConfigureICU make clean # 7b. Now do the rebuild. make check 2>&1 | tee /tmp/icu4c-newData-makeCheck.txt # 8. Investigate each test case failure. The first run processing new CLDR data # from the Survey Tool can result in thousands of failures (in many cases, one # CLDR data fix can resolve hundreds of test failures). If the error is caused # by bad CLDR data, then file a CLDR bug, fix the data, and regenerate from # step 4. If the data is OK but the testcase needs to be updated because the # data has legitimately changed, then update the testcase. You will check in # the updated testcases along with the new ICU data at the end of this process. # Note that if the new data has any differences in structure, you will have to # update test/testdata/structLocale.txt or /tsutil/cldrtest/TestLocaleStructure # may fail. # Repeat steps 4-7 until there are no errors. # 9. You can also run the make check tests in exhaustive mode (these will also # be run automatically on the master branch after the merge resulting from this # integration): cd $ICU4C_DIR/source export INTLTEST_OPTS="-e" export CINTLTST_OPTS="-e" make check 2>&1 | tee /tmp/icu4c-newData-makeCheckEx.txt # 10. Again, investigate each failure, fixing CLDR data or ICU test cases as # appropriate, and repeating steps 4-7 and 9 until there are no errors. # 11. Now with ICU4J, build and test without new data first, to verify that # there are no pre-existing errors (or at least to have the pre-existing errors # as a base for comparison): cd $ICU4J_ROOT ant all 2>&1 | tee /tmp/icu4j-oldData-antAll.txt ant check 2>&1 | tee /tmp/icu4j-oldData-antCheck.txt # 12. Transfer the data to ICU4J: cd $ICU4C_DIR/source # 12a. You need to reconfigure ICU4C to include the unicore data. ICU_DATA_BUILDTOOL_OPTS=--include_uni_core_data ./runConfigureICU # 12b. Now build the jar files. cd $ICU4C_DIR/source/data # The following 2 lines are required to include the unicore data: make clean make -j6 make icu4j-data-install cd $ICU4C_DIR/source/test/testdata make icu4j-data-install # 13. Now rebuild ICU4J with the new data and run tests: # Keep a log so you can investigate the errors. cd $ICU4J_ROOT ant check 2>&1 | tee /tmp/icu4j-newData-antCheck.txt # 14. Investigate test case failures; fix test cases and repeat from step 12, # or fix CLDR data and repeat from step 4, as appropriate, until there are no # more failures in ICU4C or ICU4J (except failures that were present before you # began testing the new CLDR data). # Note that certain data changes and related test failures may require the # rebuilding of other kinds of data. For example: # a) Changes to locale matching data may cause failures in e.g. the following: # com.ibm.icu.dev.test.util.LocaleDistanceTest (testLoadedDataSameAsBuiltFromScratch) # com.ibm.icu.dev.test.util.LocaleMatcherTest (testLikelySubtagsLoadedDataSameAsBuiltFromScratch) # To address these requires building and running the tool # icu4j/tools/misc/src/com/ibm/icu/dev/tool/locale/LocaleDistanceBuilder.java # to regenerate the file icu4c/source/data/misc/langInfo.txt and then regenerating # the ICU4J data jars. # b) Changes to plurals data may cause failures in e.g. the following # com.ibm.icu.dev.test.format.PluralRulesTest (TestLocales) # To address these requires updating the LOCALE_SNAPSHOT data in # icu4j/main/tests/core/src/com/ibm/icu/dev/test/format/PluralRulesTest.java # by modifying the TestLocales() test there to run generateLOCALE_SNAPSHOT() and then # copying in the updated data. # 15. Check the file changes; then git add or git rm as necessary, and # commit the changes. cd $HOME/icu/ cd .. git status # git add or remove as necessary # commit # 16. For an official CLDR data integration into ICU, now tag the CLDR and # ICU sources with an appropriate CLDR milestone (you can check previous # tags for format), e.g.: cd $CLDR_DIR git tag ... git push --tags cd $HOME/icu git tag ... git push --tags # 17. You should also commit and tag the update production data in CLDR_TMP_DIR # using the same tag as for CLDR_DIR above: cd $CLDR_TMP_DIR # git add or remove as necessary # commit git tag ... git push --tags