Use git to automatically create version.h
[exim.git] / src / scripts / reversion
1 #!/bin/sh
2
3 # Update Exim's version header file.
4
5 # Read version information that was generated by a previous run of
6 # this script, or during the release process.
7
8 if [ -f version.sh ]
9 then . version.sh
10 elif [ -f ../src/version.sh ]
11 then . ../src/version.sh
12 fi
13
14 # If this tree is a git working directory, use that to get version information.
15
16 if [ -e ../../.git ] || [ "$1" = "release" ]
17 then
18 # Modify the output of git describe into separate parts for
19 # the name "exim" and the release and variant versions.
20 # Put a dot in the version number and remove a spurious g.
21 set $(git describe --dirty=-XX --match 'exim-4*' |
22 sed 's|-| |;s|_|.|;s|[-_]| _|;s|-g|-|')
23 # Only update if we need to
24 if [ "$2 $3" != "$EXIM_RELEASE_VERSION $EXIM_VARIANT_VERSION" ]
25 then
26 EXIM_RELEASE_VERSION="$2"
27 EXIM_VARIANT_VERSION="$3"
28 rm -f version.h
29 fi
30 fi
31
32 # If you are maintaining a patched version of Exim, you can either
33 # create your own version.sh as part of your release process, or you
34 # can modify EXIM_VARIANT_VERSION at this point in this script.
35
36 case $EXIM_RELEASE_VERSION in
37 '') echo "*** Your copy of Exim lacks any version information."
38 exit 1
39 esac
40
41 EXIM_COMPILE_NUMBER=$(expr "${EXIM_COMPILE_NUMBER:-0}" + 1)
42
43 echo "$EXIM_COMPILE_NUMBER" >cnumber.h
44
45 ( echo '# automatically generated file - see ../scripts/reversion'
46 echo EXIM_RELEASE_VERSION='"'"$EXIM_RELEASE_VERSION"'"'
47 echo EXIM_VARIANT_VERSION='"'"$EXIM_VARIANT_VERSION"'"'
48 echo EXIM_COMPILE_NUMBER='"'"$EXIM_COMPILE_NUMBER"'"'
49 ) >version.sh
50
51 if [ ! -f version.h ]
52 then
53 ( echo '/* automatically generated file - see ../scripts/reversion */'
54 echo '#define EXIM_RELEASE_VERSION "'"$EXIM_RELEASE_VERSION"'"'
55 echo '#define EXIM_VARIANT_VERSION "'"$EXIM_VARIANT_VERSION"'"'
56 echo '#define EXIM_VERSION_STR EXIM_RELEASE_VERSION EXIM_VARIANT_VERSION'
57 ) >version.h
58 fi
59
60 echo ">>> version $EXIM_RELEASE_VERSION$EXIM_VARIANT_VERSION #$EXIM_COMPILE_NUMBER"
61 echo