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ba67aaf2d0
Add a git-sh-i18n--envsubst program which is a stripped-down version
of the GNU envsubst(1) program that comes with GNU gettext for use in
the eval_gettext() fallback.
We need a C helper program because implementing eval_gettext() purely
in shell turned out to be unworkable. Digging through the Git mailing
list archives will reveal two shell implementations of eval_gettext
that are almost good enough, but fail on an edge case which is tested
for in the tests which are part of this patch.
These are the modifications I made to envsubst.c as I turned it into
sh-i18n--envsubst.c:
* Added our git-compat-util.h header for xrealloc() and friends.
* Removed inclusion of gettext-specific headers.
* Removed most of main() and replaced it with my own. The modified
version only does option parsing for --variables. That's all it
needs.
* Modified error() invocations to use our error() instead of
error(3).
* Replaced the gettext XNMALLOC(n, size) macro with just
xmalloc(n). Since XNMALLOC() only allocated char's.
* Removed the string_list_destroy function. It's redundant (also in
the upstream code).
* Replaced the use of stdbool.h (a C99 header) by doing the following
replacements on the code:
* s/bool/unsigned short int/g
* s/true/1/g
* s/false/0/g
Reported-by: Johannes Sixt <j.sixt@viscovery.net>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
26 lines
743 B
Text
26 lines
743 B
Text
git-sh-i18n--envsubst(1)
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========================
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NAME
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----
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git-sh-i18n--envsubst - Git's own envsubst(1) for i18n fallbacks
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DESCRIPTION
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-----------
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This is not a command the end user would want to run. Ever.
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This documentation is meant for people who are studying the
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plumbing scripts and/or are writing new ones.
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git-sh-i18n--envsubst is Git's stripped-down copy of the GNU
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`envsubst(1)` program that comes with the GNU gettext package. It's
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used internally by linkgit:git-sh-i18n[1] to interpolate the variables
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passed to the the `eval_gettext` function.
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No promises are made about the interface, or that this
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program won't disappear without warning in the next version
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of Git. Don't use it.
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GIT
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---
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Part of the linkgit:git[1] suite
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