Generate the icu data binaries at compile time instead of checking in binaries

build_tools/write_icudata_lst.py

Index: build_tools/write_icudata_lst.py
diff --git a/build_tools/write_icudata_lst.py b/build_tools/write_icudata_lst.py
new file mode 100644
index 0000000000000000000000000000000000000000..40e9ff34cffb4338fec71511928c339c5a2551d7
--- /dev/null
+++ b/build_tools/write_icudata_lst.py
@@ -0,0 +1,77 @@
+"""Writes the icudata.lst file icupkg needs based on the information the gyp/gn
+generators can give it."""
+
+from __future__ import print_function
+
+import argparse
+import os
+import sys
+
+def change_ext(path, new_ext):
+    return os.path.splitext(path)[0] + new_ext
+
+def main():
+    parser = argparse.ArgumentParser(
+        description=('Generates an icudata.lst file to be compiled by icu.'))
+
+    parser.add_argument('--inroot',
+                        required=True,
+                        help='The root of the indata files.')
+
+    parser.add_argument('--infile',
+                        help='File that should contain a raw list.')
+
+    parser.add_argument('--outfile',
+                        required=True,
+                        help='File that will contain an ICU formatted list.')
+
+    parser.add_argument('--PRODUCT_DIR',
+                        help=('The value of the PRODUCT_DIR env var. ' +
+                              'Either this or --gn-root needs to be set.'))
+
+    parser.add_argument('--gn-root',
+                        help=('The root of the gn build dir. Either this '
+                              ' or PRODUCT_DIR (for gyp) must be set'))
+
+    parser.add_argument('files',
+                        nargs='*',
+                        help=('Files that were processed. Will magically '
+                              'be mapped to result files by this script.'))
+
+    args = parser.parse_args()
+
+    if args.gn_root is None and args.PRODUCT_DIR is None:
+        print('One of --gn-root and --PRODUCT_DIR must be set.')
+        sys.exit(1)
+
+    def map_to_result(filepath):
+        filepath = filepath.strip()
+        if args.PRODUCT_DIR is not None:
+            # gyp for Ninja.
+            filepath = filepath.replace('$!PRODUCT_DIR', args.PRODUCT_DIR)
+            # gyp for Make.
+            filepath = filepath.replace('$(obj)', args.PRODUCT_DIR + '/obj')
+        if args.gn_root is not None:
+            filepath = filepath.replace('//', args.gn_root + '/')
+        if len(filepath) > 1 and filepath[0] == filepath[-1] == '"':
+            # Strip quote.
+            filepath = filepath[1:-1]
+        short_path = os.path.relpath(filepath, args.inroot)
+        if short_path.startswith('..'):
+            short_path = filepath
+        return short_path
+
+    tmp_file = args.outfile + '.tmp'
+    with open(tmp_file, 'w') as icudata_lst:
+        if args.infile:
+            with open(args.infile, 'r') as infile:
+                for filename in infile:
+                    icudata_lst.write('%s\n' % map_to_result(filename))
+        for filename in args.files:
+            icudata_lst.write('%s\n' % map_to_result(filename))
+    if os.path.isfile(args.outfile):
+        os.unlink(args.outfile)
+    os.rename(tmp_file, args.outfile)
+
+if __name__ == '__main__':
+    main()