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reproduce.tt: Check for the presence of commands like nix-build

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This commit is contained in:
Eelco Dolstra 2013-05-02 16:19:20 +02:00
parent 659898bd67
commit a468a28840
1 changed files with 20 additions and 1 deletions
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21
src/root/reproduce.tt
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@ -59,7 +59,17 @@ export NIX_PATH=
mkdir -p "$tmpDir" mkdir -p "$tmpDir"
cd "$tmpDir" cd "$tmpDir"
echo "storing sources in $tmpDir" >&2 echo "storing inputs and results in $tmpDir" >&2
requireCommand() {
local cmd="$1"
if ! type -P "$cmd" > /dev/null; then
echo "$0: command ‘$cmd’ is not installed; please install it and try again" >&2
exit 1
fi
return 0
}
# Fetch the inputs. # Fetch the inputs.
@ -72,7 +82,9 @@ inputDir=
inputDir="$tmpDir/[% input.name %]/git-export" inputDir="$tmpDir/[% input.name %]/git-export"
if ! [ -d "$inputDir" ]; then if ! [ -d "$inputDir" ]; then
echo
echo "fetching Git input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2 echo "fetching Git input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2
requireCommand git
inputDirTmp="$inputDir.tmp" inputDirTmp="$inputDir.tmp"
rm -rf "$inputDirTmp" rm -rf "$inputDirTmp"
mkdir -p "$inputDirTmp" mkdir -p "$inputDirTmp"
@ -90,7 +102,9 @@ args+=(--arg '[% input.name %]' "{ outPath = $inputDir; rev = \"[% input.revisio
inputDir="$tmpDir/[% input.name %]/hg-archive" inputDir="$tmpDir/[% input.name %]/hg-archive"
if ! [ -d "$inputDir" ]; then if ! [ -d "$inputDir" ]; then
echo
echo "fetching Mercurial input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2 echo "fetching Mercurial input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2
requireCommand hg
inputDirTmp="$inputDir.tmp" inputDirTmp="$inputDir.tmp"
rm -rf "$inputDirTmp" rm -rf "$inputDirTmp"
hg clone '[% input.uri %]' "$inputDirTmp" -r '[% input.revision %]' hg clone '[% input.uri %]' "$inputDirTmp" -r '[% input.revision %]'
@ -105,7 +119,9 @@ args+=(--arg '[% input.name %]' "{ outPath = $inputDir; rev = \"[% input.revisio
inputDir="$tmpDir/[% input.name %]/svn-export" inputDir="$tmpDir/[% input.name %]/svn-export"
if ! [ -d "$inputDir" ]; then if ! [ -d "$inputDir" ]; then
echo
echo "fetching Subversion input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2 echo "fetching Subversion input ‘[% input.name %]’ from ‘[% input.uri %]’ (commit [% input.revision %])..." >&2
requireCommand svn
rm -rf "$inputDir.tmp" rm -rf "$inputDir.tmp"
svn export '[% input.uri %]@[% input.revision %]' "$inputDir.tmp" svn export '[% input.uri %]@[% input.revision %]' "$inputDir.tmp"
mv "$inputDir.tmp" "$inputDir" mv "$inputDir.tmp" "$inputDir"
@ -137,6 +153,8 @@ fi
# Run nix-build. # Run nix-build.
requireCommand nix-build
if [ -z "$nixExprInputDir" ]; then if [ -z "$nixExprInputDir" ]; then
echo "$0: don't know the path to the Nix expression!" >&2 echo "$0: don't know the path to the Nix expression!" >&2
exit 1 exit 1
@ -148,6 +166,7 @@ fi
# when evaluating jobs that rely on builtins.currentSystem. # when evaluating jobs that rely on builtins.currentSystem.
args+=(--option system x86_64-linux) args+=(--option system x86_64-linux)
echo
echo "Nix path is $NIX_PATH" >&2 echo "Nix path is $NIX_PATH" >&2
echo "Nix args are ${args[@]}" >&2 echo "Nix args are ${args[@]}" >&2