pyrox.dev
1_handleCmdOutput(){
2 local command=("$1" "$2")
3 local versionOutput
4
5 local envArgs=()
6 if [[ "$3" != "*" ]]; then
7 envArgs+=("--ignore-environment")
8 for var in $3; do
9 envArgs+=("$var=${!var}")
10 done
11 fi
12
13 versionOutput="$(env \
14 --chdir=/ \
15 --argv0="$(basename "${command[0]}")" \
16 "${envArgs[@]}" \
17 "${command[@]}" 2>&1 \
18 | sed -e 's|@storeDir@/[^/ ]*/|{{storeDir}}/|g' \
19 || true)"
20 if [[ "$versionOutput" =~ "$version" ]]; then
21 echoPrefix="Successfully managed to"
22 else
23 echoPrefix="Did not"
24 fi
25 # The return value of this function is this variable:
26 echo "$echoPrefix"
27 # And in anycase we want these to be printed in the build log, useful for
28 # debugging, so we print these to stderr.
29 echo "$echoPrefix" find version "$version" in the output of the command \
30 "${command[@]}" >&2
31 echo "$versionOutput" >&2
32}
33versionCheckHook(){
34 runHook preVersionCheck
35 echo Executing versionCheckPhase
36
37 # Don't keep any environment variables by default
38 : "${versionCheckKeepEnvironment:=}"
39
40 local cmdProgram cmdArg echoPrefix
41 if [[ ! -z "${versionCheckProgram-}" ]]; then
42 cmdProgram="$versionCheckProgram"
43 elif [[ ! -z "${NIX_MAIN_PROGRAM-}" ]]; then
44 cmdProgram="${!outputBin}/bin/${NIX_MAIN_PROGRAM}"
45 elif [[ ! -z "${pname-}" ]]; then
46 echo "versionCheckHook: Package \`${pname}\` does not have the \`meta.mainProgram\` attribute." \
47 "We'll assume that the main program has the same name for now, but this behavior is deprecated," \
48 "because it leads to surprising errors when the assumption does not hold." \
49 "If the package has a main program, please set \`meta.mainProgram\` in its definition to make this warning go away." \
50 "Should the binary that outputs the intended version differ from \`meta.mainProgram\`, consider setting \`versionCheckProgram\` instead." >&2
51 cmdProgram="${!outputBin}/bin/${pname}"
52 else
53 echo "versionCheckHook: \$NIX_MAIN_PROGRAM, \$versionCheckProgram and \$pname are all empty, so" \
54 "we don't know how to run the versionCheckPhase." \
55 "To fix this, set one of \`meta.mainProgram\` or \`versionCheckProgram\`." >&2
56 exit 2
57 fi
58
59 if [[ ! -x "$cmdProgram" ]]; then
60 echo "versionCheckHook: $cmdProgram was not found, or is not an executable" >&2
61 exit 2
62 fi
63 if [[ -z "${versionCheckProgramArg}" ]]; then
64 for cmdArg in "--help" "--version"; do
65 echoPrefix="$(_handleCmdOutput "$cmdProgram" "$cmdArg" "$versionCheckKeepEnvironment")"
66 if [[ "$echoPrefix" == "Successfully managed to" ]]; then
67 break
68 fi
69 done
70 else
71 cmdArg="$versionCheckProgramArg"
72 echoPrefix="$(_handleCmdOutput "$cmdProgram" "$cmdArg" "$versionCheckKeepEnvironment")"
73 fi
74 if [[ "$echoPrefix" == "Did not" ]]; then
75 exit 2
76 fi
77
78 runHook postVersionCheck
79 echo Finished versionCheckPhase
80}
81
82if [[ -z "${dontVersionCheck-}" ]]; then
83 echo "Using versionCheckHook"
84 preInstallCheckHooks+=(versionCheckHook)
85fi