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entry.jl
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entry.jl
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module Entry
using ..Types
import ..Reqs, ..Read, ..Query, ..Resolve, ..Cache, ..Write
import Base: Git, thispatch, nextpatch, nextminor, nextmajor, check_new_version
macro recover(ex)
quote
try $(esc(ex))
catch err
show(err)
end
end
end
function edit(f::Function, pkg::String, args...)
r = Reqs.read("REQUIRE")
reqs = Reqs.parse(r)
avail = Read.available()
!haskey(avail,pkg) && !haskey(reqs,pkg) && return false
rʹ = f(r,pkg,args...)
rʹ == r && return false
reqsʹ = Reqs.parse(rʹ)
reqsʹ != reqs && resolve(reqsʹ,avail)
Reqs.write("REQUIRE",rʹ)
info("REQUIRE updated.")
return true
end
function edit()
editor = get(ENV,"VISUAL",get(ENV,"EDITOR",nothing))
editor != nothing ||
error("set the EDITOR environment variable to an edit command")
editor = Base.shell_split(editor)
reqs = Reqs.parse("REQUIRE")
run(`$editor REQUIRE`)
reqsʹ = Reqs.parse("REQUIRE")
reqs == reqsʹ && return info("Nothing to be done.")
info("Computing changes...")
resolve(reqsʹ)
end
function add(pkg::String, vers::VersionSet)
edit(Reqs.add,pkg,vers) && return
ispath(pkg) || error("unknown package $pkg")
info("Nothing to be done.")
end
add(pkg::String, vers::VersionNumber...) = add(pkg,VersionSet(vers...))
function rm(pkg::String)
edit(Reqs.rm,pkg) && return
ispath(pkg) || return info("Nothing to be done.")
info("Removing $pkg (unregistered)")
Write.remove(pkg)
end
available() = sort!(ASCIIString[keys(Read.available())...], by=lowercase)
function available(pkg::String)
avail = Read.available(pkg)
if !isempty(avail) || Read.isinstalled(pkg)
return sort!([keys(avail)...])
end
error("$pkg is not a package (not registered or installed)")
end
function installed()
pkgs = Dict{ASCIIString,VersionNumber}()
for (pkg,(ver,fix)) in Read.installed()
pkgs[pkg] = ver
end
return pkgs
end
function installed(pkg::String)
avail = Read.available(pkg)
Read.isinstalled(pkg) && return Read.installed_version(pkg,avail)
isempty(avail) && error("$pkg is not a package (not registered or installed)")
return nothing # registered but not installed
end
function status(io::IO)
reqs = Reqs.parse("REQUIRE")
instd = Read.installed()
required = sort!([keys(reqs)...])
if !isempty(required)
println(io, "Required packages:")
for pkg in required
ver,fix = pop!(instd,pkg)
status(io,pkg,ver,fix)
end
end
additional = sort!([keys(instd)...])
if !isempty(additional)
println(io, "Additional packages:")
for pkg in additional
ver,fix = instd[pkg]
status(io,pkg,ver,fix)
end
end
if isempty(required) && isempty(additional)
println(io, "No packages installed.")
end
end
# TODO: status(io::IO, pkg::String)
function status(io::IO, pkg::String, ver::VersionNumber, fix::Bool)
@printf io " - %-29s " pkg
fix || return println(io,ver)
@printf io "%-19s" ver
if ispath(pkg,".git")
print(io, Git.attached(dir=pkg) ? Git.branch(dir=pkg) : Git.head(dir=pkg)[1:8])
attrs = String[]
isfile("METADATA",pkg,"url") || push!(attrs,"unregistered")
Git.dirty(dir=pkg) && push!(attrs,"dirty")
isempty(attrs) || print(io, " (",join(attrs,", "),")")
else
print(io, "non-repo (unregistered)")
end
println(io)
end
function clone(url::String, pkg::String)
info("Cloning $pkg from $url")
ispath(pkg) && error("$pkg already exists")
try
Git.run(`clone -q $url $pkg`)
Git.set_remote_url(url, dir=pkg)
catch
run(`rm -rf $pkg`)
rethrow()
end
isempty(Reqs.parse("$pkg/REQUIRE")) && return
info("Computing changes...")
resolve()
end
function clone(url_or_pkg::String)
urlpath = joinpath("METADATA",url_or_pkg,"url")
if isfile(urlpath)
pkg = url_or_pkg
url = readchomp(urlpath)
# TODO: Cache.prefetch(pkg,url)
else
url = url_or_pkg
m = match(r"/(\w+?)(?:\.jl)?(?:\.git)?$", url)
m != nothing || error("can't determine package name from URL: $url")
pkg = m.captures[1]
end
clone(url,pkg)
end
function _checkout(pkg::String, what::String, merge::Bool=false, pull::Bool=false)
Git.transact(dir=pkg) do
Git.dirty(dir=pkg) && error("$pkg is dirty, bailing")
Git.run(`checkout -q $what`, dir=pkg)
merge && Git.run(`merge -q --ff-only $what`, dir=pkg)
if pull
info("Pulling $pkg latest $what...")
Git.run(`pull -q --ff-only`, dir=pkg)
end
resolve()
end
end
function checkout(pkg::String, branch::String, merge::Bool, pull::Bool)
ispath(pkg,".git") || error("$pkg is not a git repo")
info("Checking out $pkg $branch...")
_checkout(pkg,branch,merge,pull)
end
function free(pkg::String)
ispath(pkg,".git") || error("$pkg is not a git repo")
Read.isinstalled(pkg) || error("$pkg cannot be freed – not an installed package")
avail = Read.available(pkg)
isempty(avail) && error("$pkg cannot be freed – not a registered package")
Git.dirty(dir=pkg) && error("$pkg cannot be freed – repo is dirty")
info("Freeing $pkg")
vers = sort!([keys(avail)...], rev=true)
while true
for ver in vers
sha1 = avail[ver].sha1
Git.iscommit(sha1, dir=pkg) || continue
return _checkout(pkg,sha1)
end
isempty(Cache.prefetch(pkg, Read.url(pkg), [a.sha1 for (v,a)=avail])) && continue
error("can't find any registered versions of $pkg to checkout")
end
end
function pin(pkg::String, head::String)
ispath(pkg,".git") || error("$pkg is not a git repo")
branch = "pinned.$(head[1:8]).tmp"
rslv = (head != Git.head(dir=pkg))
info("Creating $pkg branch $branch")
Git.run(`checkout -q -B $branch $head`, dir=pkg)
rslv ? resolve() : nothing
end
pin(pkg::String) = pin(pkg,Git.head(dir=pkg))
function pin(pkg::String, ver::VersionNumber)
ispath(pkg,".git") || error("$pkg is not a git repo")
Read.isinstalled(pkg) || error("$pkg cannot be pinned – not an installed package".tmp)
avail = Read.available(pkg)
isempty(avail) && error("$pkg cannot be pinned – not a registered package".tmp)
haskey(avail,ver) || error("$pkg – $ver is not a registered version")
pin(pkg,avail[ver].sha1)
end
function update(branch::String)
info("Updating METADATA...")
cd("METADATA") do
if Git.branch() != branch
Git.dirty() && error("METADATA is dirty and not on $branch, bailing")
Git.attached() || error("METADATA is detached not on $branch, bailing")
Git.run(`fetch -q --all`)
Git.run(`checkout -q HEAD^0`)
Git.run(`branch -f $branch refs/remotes/origin/$branch`)
Git.run(`checkout -q $branch`)
end
# TODO: handle merge conflicts
Base.with_env("GIT_MERGE_AUTOEDIT","no") do
Git.run(`pull -q`, out=DevNull)
end
end
avail = Read.available()
# this has to happen before computing free/fixed
@sync for pkg in filter!(Read.isinstalled,[keys(avail)...])
@async Cache.prefetch(pkg, Read.url(pkg), [a.sha1 for (v,a)=avail[pkg]])
end
instd = Read.installed(avail)
free = Read.free(instd)
@sync for (pkg,ver) in free
@async Cache.prefetch(pkg, Read.url(pkg), [a.sha1 for (v,a)=avail[pkg]])
end
fixed = Read.fixed(avail,instd)
@sync for (pkg,ver) in fixed
ispath(pkg,".git") || continue
@async begin
if Git.attached(dir=pkg) && !Git.dirty(dir=pkg)
info("Updating $pkg...")
@recover begin
Git.run(`fetch -q --all`, dir=pkg)
Git.success(`pull -q --ff-only`, dir=pkg) # suppress output
end
end
if haskey(avail,pkg)
Cache.prefetch(pkg, Read.url(pkg), [a.sha1 for (v,a)=avail[pkg]])
end
end
end
info("Computing changes...")
resolve(Reqs.parse("REQUIRE"), avail, instd, fixed, free)
end
function publish(branch::String)
Git.branch(dir="METADATA") == branch ||
error("METADATA must be on $branch to publish changes")
Git.success(`push -q -n origin $branch`, dir="METADATA") ||
error("METADATA is behind origin/$branch – run Pkg.update() before publishing")
Git.run(`fetch -q`, dir="METADATA")
info("Validating METADATA")
check_metadata()
tags = Dict{ASCIIString,Vector{ASCIIString}}()
Git.run(`update-index -q --really-refresh`, dir="METADATA")
cmd = `diff --name-only --diff-filter=AMR origin/$branch HEAD --`
for line in eachline(Git.cmd(cmd, dir="METADATA"))
path = chomp(line)
m = match(r"^(.+?)/versions/([^/]+)/sha1$", path)
m != nothing && ismatch(Base.VERSION_REGEX, m.captures[2]) || continue
pkg, ver = m.captures; ver = convert(VersionNumber,ver)
sha1 = readchomp(joinpath("METADATA",path))
if Git.success(`cat-file -e origin/$branch:$path`, dir="METADATA")
old = Git.readchomp(`cat-file blob origin/$branch:$path`, dir="METADATA")
old == sha1 || error("$pkg v$ver SHA1 changed in METADATA – refusing to push")
end
any(split(Git.readall(`tag --contains $sha1`, dir=pkg))) do tag
ver == convert(VersionNumber,tag) || return false
haskey(tags,pkg) || (tags[pkg] = ASCIIString[])
push!(tags[pkg], tag)
return true
end || error("$pkg v$ver is incorrectly tagged – $sha1 expected")
end
isempty(tags) && info("No new package versions to publish.")
@sync for pkg in sort!([keys(tags)...])
@async begin
forced = ASCIIString[]
unforced = ASCIIString[]
for tag in tags[pkg]
ver = convert(VersionNumber,tag)
push!(isrewritable(ver) ? forced : unforced, tag)
end
if !isempty(forced)
info("Pushing $pkg temporary tags: ", join(forced,", "))
refspecs = ["refs/tags/$tag:refs/tags/$tag" for tag in forced]
Git.run(`push -q --force origin $refspecs`, dir=pkg)
end
if !isempty(unforced)
info("Pushing $pkg permanent tags: ", join(unforced,", "))
refspecs = ["refs/tags/$tag:refs/tags/$tag" for tag in unforced]
Git.run(`push -q origin $refspecs`, dir=pkg)
end
end
end
info("Pushing METADATA changes")
Git.run(`push -q origin $branch`, dir="METADATA")
end
function resolve(
reqs :: Dict = Reqs.parse("REQUIRE"),
avail :: Dict = Read.available(),
instd :: Dict = Read.installed(avail),
fixed :: Dict = Read.fixed(avail,instd),
have :: Dict = Read.free(instd),
)
reqs = Query.requirements(reqs,fixed,avail)
deps, conflicts = Query.dependencies(avail,fixed)
for pkg in keys(reqs)
if !haskey(deps,pkg)
error("$pkg's requirements can't be satisfied because of the following fixed packages: ",
join(conflicts[pkg], ", ", " and "))
end
end
Query.check_requirements(reqs,deps,fixed)
deps = Query.prune_dependencies(reqs,deps)
want = Resolve.resolve(reqs,deps)
# compare what is installed with what should be
changes = Query.diff(have, want, avail, fixed)
isempty(changes) && return info("No packages to install, update or remove.")
# prefetch phase isolates network activity, nothing to roll back
missing = {}
for (pkg,(ver1,ver2)) in changes
vers = ASCIIString[]
ver1 !== nothing && push!(vers,Git.head(dir=pkg))
ver2 !== nothing && push!(vers,Read.sha1(pkg,ver2))
append!(missing,
map(sha1->(pkg,(ver1,ver2),sha1),
Cache.prefetch(pkg, Read.url(pkg), vers)))
end
if !isempty(missing)
msg = "Missing package versions (possible metadata misconfiguration):"
for (pkg,ver,sha1) in missing
msg *= " $pkg v$ver [$sha1[1:10]]\n"
end
error(msg)
end
# try applying changes, roll back everything if anything fails
changed = {}
try
for (pkg,(ver1,ver2)) in changes
if ver1 === nothing
info("Installing $pkg v$ver2")
Write.install(pkg, Read.sha1(pkg,ver2))
elseif ver2 == nothing
info("Removing $pkg v$ver1")
Write.remove(pkg)
else
up = ver1 <= ver2 ? "Up" : "Down"
info("$(up)grading $pkg: v$ver1 => v$ver2")
Write.update(pkg, Read.sha1(pkg,ver2))
end
push!(changed,(pkg,(ver1,ver2)))
end
catch
for (pkg,(ver1,ver2)) in reverse!(changed)
if ver1 == nothing
info("Rolling back install of $pkg")
@recover Write.remove(pkg)
elseif ver2 == nothing
info("Rolling back deleted $pkg to v$ver1")
@recover Write.install(pkg, Read.sha1(pkg,ver1))
else
info("Rolling back $pkg from v$ver2 to v$ver1")
@recover Write.update(pkg, Read.sha1(pkg,ver1))
end
end
rethrow()
end
# re/build all updated/installed packages
build(map(x->x[1],filter(x->x[2][2]!=nothing,changes)))
end
function write_tag_metadata(pkg::String, ver::VersionNumber, commit::String, force::Bool=false)
cmd = Git.cmd(`cat-file blob $commit:REQUIRE`, dir=pkg)
reqs = success(cmd) ? Reqs.read(cmd) : Reqs.Line[]
cd("METADATA") do
d = joinpath(pkg,"versions",string(ver))
mkpath(d)
sha1file = joinpath(d,"sha1")
if !force && ispath(sha1file)
current = readchomp(sha1file)
current == commit ||
error("$pkg v$ver is already registered as $current, bailing")
end
open(io->println(io,commit), sha1file, "w")
Git.run(`add $sha1file`)
reqsfile = joinpath(d,"requires")
if isempty(reqs)
ispath(reqsfile) && Git.run(`rm -f -q $reqsfile`)
else
Reqs.write(reqsfile,reqs)
Git.run(`add $reqsfile`)
end
end
return nothing
end
function register(pkg::String, url::String)
ispath(pkg,".git") || error("$pkg is not a git repo")
isfile("METADATA",pkg,"url") && error("$pkg already registered")
tags = split(Git.readall(`tag -l v*`, dir=pkg))
filter!(tag->ismatch(Base.VERSION_REGEX,tag), tags)
versions = [
convert(VersionNumber,tag) =>
Git.readchomp(`rev-parse --verify $tag^{commit}`, dir=pkg)
for tag in tags
]
Git.transact(dir="METADATA") do
cd("METADATA") do
info("Registering $pkg at $url")
mkdir(pkg)
path = joinpath(pkg,"url")
open(io->println(io,url), path, "w")
Git.run(`add $path`)
end
vers = sort!([keys(versions)...])
for ver in vers
info("Tagging $pkg v$ver")
write_tag_metadata(pkg,ver,versions[ver])
end
if Git.staged(dir="METADATA")
info("Committing METADATA for $pkg")
msg = "Register $pkg"
if !isempty(versions)
msg *= ": $(join(map(v->"v$v", vers),", "))"
end
Git.run(`commit -q -m $msg -- $pkg`, dir="METADATA")
else
info("No METADATA changes to commit")
end
end
end
function register(pkg::String)
Git.success(`config remote.origin.url`, dir=pkg) ||
error("$pkg: no URL configured")
url = Git.readchomp(`config remote.origin.url`, dir=pkg)
register(pkg,Git.normalize_url(url))
end
function isrewritable(v::VersionNumber)
thispatch(v)==v"0" ||
length(v.prerelease)==1 && isempty(v.prerelease[1]) ||
length(v.build)==1 && isempty(v.build[1])
end
nextbump(v::VersionNumber) = isrewritable(v) ? v : nextpatch(v)
function tag(pkg::String, ver::Union(Symbol,VersionNumber), force::Bool=false, commit::String="HEAD")
ispath(pkg,".git") || error("$pkg is not a git repo")
Git.dirty(dir=pkg) &&
error("$pkg is dirty – commit or stash changes to tag")
Git.dirty(pkg, dir="METADATA") &&
error("METADATA/$pkg is dirty – commit or stash changes to tag")
commit = Git.readchomp(`rev-parse $commit`, dir=pkg)
registered = isfile("METADATA",pkg,"url")
if !force
if registered
avail = Read.available(pkg)
existing = VersionNumber[keys(Read.available(pkg))...]
ancestors = filter(v->Git.is_ancestor_of(avail[v].sha1,commit,dir=pkg), existing)
else
tags = split(Git.readall(`tag -l v*`, dir=pkg))
filter!(tag->ismatch(Base.VERSION_REGEX,tag), tags)
existing = VersionNumber[tags...]
filter!(tags) do tag
sha1 = Git.readchomp(`rev-parse --verify $tag^{commit}`, dir=pkg)
Git.is_ancestor_of(sha1,commit,dir=pkg)
end
ancestors = VersionNumber[tags...]
end
sort!(existing)
if isa(ver,Symbol)
prv = isempty(existing) ? v"0" :
isempty(ancestors) ? maximum(existing) : maximum(ancestors)
ver = (ver == :bump ) ? nextbump(prv) :
(ver == :patch) ? nextpatch(prv) :
(ver == :minor) ? nextminor(prv) :
(ver == :major) ? nextmajor(prv) :
error("invalid version selector: $ver")
end
isrewritable(ver) && filter!(v->v!=ver,existing)
check_new_version(existing,ver)
end
# TODO: check that SHA1 isn't the same as another version
info("Tagging $pkg v$ver")
opts = ``
if force || isrewritable(ver)
opts = `$opts --force`
end
if !isrewritable(ver)
opts = `$opts --annotate --message "$pkg v$ver [$(commit[1:10])]"`
end
Git.run(`tag $opts v$ver $commit`, dir=pkg, out=DevNull)
registered || return
try
Git.transact(dir="METADATA") do
write_tag_metadata(pkg,ver,commit,force)
if Git.staged(dir="METADATA")
info("Committing METADATA for $pkg")
Git.run(`commit -q -m "Tag $pkg v$ver" -- $pkg`, dir="METADATA")
else
info("No METADATA changes to commit")
end
end
catch
Git.run(`tag -d v$ver`, dir=pkg)
rethrow()
end
end
function check_metadata()
avail = Read.available()
deps, conflicts = Query.dependencies(avail)
for (dp,dv) in deps, (v,a) in dv, p in keys(a.requires)
haskey(deps, p) || error("package $dp v$v requires a non-registered package: $p")
end
problematic = Resolve.sanity_check(deps)
if !isempty(problematic)
msg = "packages with unsatisfiable requirements found:\n"
for (p, vn, rp) in problematic
msg *= " $p v$vn – no valid versions exist for package $rp\n"
end
error(msg)
end
return
end
function warnbanner(msg...; label="[ WARNING ]", prefix="")
warn(prefix="", Base.cpad(label,Base.tty_cols(),"="))
println(STDERR)
warn(prefix=prefix, msg...)
println(STDERR)
warn(prefix="", "="^Base.tty_cols())
end
function build!(pkgs::Vector, errs::Dict, seen::Set=Set())
for pkg in pkgs
pkg in seen && continue
build!(Read.requires_list(pkg),errs,push!(seen,pkg))
path = abspath(pkg,"deps","build.jl")
isfile(path) || continue
info("Building $pkg")
cd(dirname(path)) do
try eval(Module(),Expr(:toplevel,:(ARGS={}),:(include($path))))
catch err
warnbanner(err, label="[ ERROR: $pkg ]")
errs[pkg] = err
end
end
end
end
function build(pkgs::Vector)
errs = Dict()
build!(pkgs,errs)
isempty(errs) && return
println(STDERR)
warnbanner(label="[ BUILD ERRORS ]", """
WARNING: $(join(map(x->x[1],errs),", "," and ")) had build errors.
- packages with build errors remain installed in $(pwd())
- build a package and all its dependencies with `Pkg.build(pkg)`
- build a single package by running its `deps/build.jl` script
""")
end
build() = build(sort!([keys(installed())...]))
end # module