ca446c691f
We need the git-revision for module-version checks so provide the infrastructure now and print it in log_init(). Note that the git-describe string is distributed with the tarballs so end-users will not have to generate it themself. But when building from git, the revision will be automatically updated whenever something changes. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com>
63 lines
1.0 KiB
Bash
Executable File
63 lines
1.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# Generate $1 with:
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# #define BUILD_GIT_HEAD "<git-head-revision>"
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# But do not touch $1 if the git-revision is already up-to-date.
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#
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if test "x$1" = "x" ; then
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echo "usage: ./genversion <file>"
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exit 1
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fi
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#
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# Check whether this is a valid git repository.
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# Set ISGIT to 1=true or 0=false.
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#
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ISGIT=0
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REV=`git rev-parse --git-dir 2>/dev/null`
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if test "x$?" = "x0" ; then
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ISGIT=1
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fi
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#
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# Check the old revision from $1.
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#
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if test -f "$1" ; then
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OLDREV=`cat "$1"`
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else
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if test $ISGIT = 0 ; then
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echo "WARNING: version file $1 is missing"
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echo "#define BUILD_GIT_HEAD \"unknown-revision\""
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exit 0
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fi
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OLDREV=""
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fi
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#
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# Check new revision from "git describe". However, if this is no valid
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# git-repository, return success and do nothing.
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#
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if test $ISGIT = 0 ; then
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exit 0
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fi
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NEWREV=`git describe`
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NEWREV="#define BUILD_GIT_HEAD \"$NEWREV\""
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#
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# Exit if the file is already up to date.
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# Otherwise, write the new revision into the file.
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#
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if test "x$OLDREV" = "x$NEWREV" ; then
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exit 0
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fi
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echo "$NEWREV" >"$1"
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