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Makefile: sort source files before feeding to xgettext

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We will feed xgettext with more C source files and in different order
in subsequent commit. To generate a stable "po/git.pot" regardless of
the number and order of input source files, we sort the c, perl, and
shell source files in groups before feeding them to xgettext.

Ævar suggested that we should not pass the option "--sort-by-file" to
xgettext to sort the translatable strings, as it will mix the three
groups of source files (c, perl and shell) in the file "po/git.pot",
and change the order of translatable strings in the same line of a file.

With this update, the newly generated "po/git.pot" will have the same
entries while in a different order.

With the help of a custom diff driver as shown below,

    git config --global diff.gettext-fmt.textconv \
        "msgcat --no-location --sort-by-file"

and appending a new entry "*.pot diff=gettext-fmt" to git attributes,
we can see that there are no substantial changes in "po/git.pot".

We won't checkin the newly generated "po/git.pot", because we will
remove it from tree in a later commit.

Suggested-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Jiang Xin <zhiyou.jx@alibaba-inc.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jiang Xin 2022-05-26 22:50:26 +08:00 committed by Junio C Hamano
parent 6cd33dceed
commit ea3f639fe7
1 changed files with 3 additions and 4 deletions
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7
Makefile
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@ -2713,10 +2713,9 @@ XGETTEXT_FLAGS_SH = $(XGETTEXT_FLAGS) --language=Shell \
--keyword=gettextln --keyword=eval_gettextln
XGETTEXT_FLAGS_PERL = $(XGETTEXT_FLAGS) --language=Perl \
--keyword=__ --keyword=N__ --keyword="__n:1,2"
LOCALIZED_C = $(C_OBJ:o=c) $(LIB_H) $(GENERATED_H)
LOCALIZED_SH = $(SCRIPT_SH)
LOCALIZED_SH += git-sh-setup.sh
LOCALIZED_PERL = $(SCRIPT_PERL)
LOCALIZED_C = $(sort $(C_OBJ:o=c) $(LIB_H) $(GENERATED_H))
LOCALIZED_SH = $(sort $(SCRIPT_SH) git-sh-setup.sh)
LOCALIZED_PERL = $(sort $(SCRIPT_PERL))
ifdef XGETTEXT_INCLUDE_TESTS
LOCALIZED_C += t/t0200/test.c