1 | #!/usr/bin/env bash
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2 | #
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3 | # Build stamp
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4 | #
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5 | # Usage:
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6 | # build/stamp.sh <function name>
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7 |
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8 | REPO_ROOT=$(cd $(dirname $0)/..; pwd)
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9 | source build/common.sh
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10 |
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11 | write-release-date() {
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12 | mkdir -p _build # Makefile makes this, but scripts/release.sh needs it too
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13 |
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14 | # Write a readable, sortable date that is independent of time zone.
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15 | date --utc --rfc-3339 seconds > _build/release-date.txt
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16 | }
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17 |
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18 | write-git-commit() {
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19 | ### Write git commit only if we need to
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20 | # Ninja works on timestamps, so we don't want to cause rebuilds.
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21 |
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22 | local out=_build/git-commit.txt
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23 | mkdir -p _build
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24 |
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25 | # This check is not quite accurate, since you can modify a file, and then run
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26 | # Ninja without running build/py.sh all, which calls this function. But it's
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27 | # better than nothing.
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28 | if ! git diff --quiet; then
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29 | log 'Working tree is dirty'
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30 |
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31 | #rm -f -v $out
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32 | echo '<unknown>' > $out
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33 | return
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34 | fi
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35 |
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36 | local hash
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37 | hash=$(git log -n 1 --pretty='format:%H')
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38 |
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39 | # Don't disturb the timestamp if it exists!
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40 | if test -f $out; then
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41 | local old
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42 | read -r old < $out
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43 |
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44 | if test "$old" = "$hash"; then
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45 | log "Unchanged git commit $hash, skipping $out"
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46 | return
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47 | else
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48 | log "Overwriting $out with $hash"
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49 | fi
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50 | fi
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51 |
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52 | echo $hash > $out
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53 | #log "Wrote $out ($hash)"
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54 | }
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55 |
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56 | gen-cpp() {
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57 | ### For printing out in --version
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58 |
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59 | local in=$1 # stamp from Ninja
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60 | local h_out=$2
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61 | local cc_out=$3
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62 |
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63 | local hash
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64 | read -r hash < $in
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65 | #log hash=$hash
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66 |
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67 | cat >$h_out <<EOF
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68 | extern const char* gCommitHash;
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69 | EOF
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70 |
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71 | cat >$cc_out <<EOF
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72 | const char* gCommitHash = "$hash";
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73 | EOF
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74 | }
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75 |
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76 | "$@"
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