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tools(hephaestus): add push-split.sh helper for the monorepo → splits workflow

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Since silentmode/silentmode was deleted and each project now lives in its
own repo, cross-cutting commits made in the local working copy need to be
routed per-project via git-subtree-split. Rather than remember the
incantation, wrap it:

  scripts/push-split.sh Hephaestus                # → 'hephaestus' remote
  scripts/push-split.sh TheseusNavigator          # → 'theseus'    (Navigator suffix stripped)
  scripts/push-split.sh AriadneResolver           # → 'ariadne'    (Resolver suffix stripped)
  scripts/push-split.sh site-sirius-x sirius      # explicit override for non-matching names

Preserves history (uses --branch, not --squash), pushes to <remote>:master,
cleans up the ephemeral branch on exit.
This commit is contained in:
Local Dev 2026-08-31 14:50:59 +02:00
parent 4b556274d4
commit 2e5037389c
1 changed files with 60 additions and 0 deletions
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#!/usr/bin/env bash
# push-split.sh — push a subdirectory of the monorepo working-copy to its
# matching split repo on Hephaestus, preserving history via git-subtree-split.
#
# Since silentmode/silentmode was deleted and each project lives in its own
# repo on the forge (silentmode/theseus, silentmode/ariadne, silentmode/hephaestus,
# silentmode/sirius, …), cross-cutting commits made in this working copy need to
# be routed to whichever remote corresponds to the touched project.
#
# Usage:
# scripts/push-split.sh <project-dir> [remote-name]
#
# Examples:
# scripts/push-split.sh Hephaestus # → git remote 'hephaestus'
# scripts/push-split.sh TheseusNavigator # → git remote 'theseus' (Navigator suffix stripped)
# scripts/push-split.sh AriadneResolver # → git remote 'ariadne' (Resolver suffix stripped)
# scripts/push-split.sh site-sirius-x sirius # → remote 'sirius' (explicit override)
#
# List of configured remotes: `git remote -v`
#
# Notes:
# - Only ONE prefix per invocation. Cross-cutting changes that touched multiple
# projects need to be run once per touched directory.
# - Uses --branch <ephemeral>, pushes, then deletes it. Nothing sticks around.
# - Push target is always <remote>:master. Passing --branch was intentional
# over --squash: split history is preserved so file blame on the split repo
# still points at the real commits.
set -euo pipefail
prefix="${1:?usage: push-split.sh <project-dir> [remote-name]}"
# Derive a remote name from the directory if not passed.
# Heuristic: lowercase, strip Navigator/Resolver suffix. Otherwise pass explicitly.
default_remote=$(echo "$prefix" | tr '[:upper:]' '[:lower:]' | sed 's/navigator$//; s/resolver$//')
remote="${2:-$default_remote}"
[ -d "$prefix" ] || { echo "error: no such directory: $prefix" >&2; exit 1; }
git remote get-url "$remote" >/dev/null 2>&1 || {
echo "error: no git remote named '$remote'." >&2
echo "available remotes: $(git remote | paste -sd ' ' -)" >&2
echo "pass an explicit remote name as the 2nd arg." >&2
exit 1
}
# Uncommitted changes get carried into the split — usually not what you want.
# Warn (but don't block; sometimes you know what you're doing).
if ! git diff --quiet HEAD -- "$prefix" 2>/dev/null; then
echo "warning: $prefix has uncommitted changes — those will NOT be included in the split." >&2
fi
branch="_push_${remote}_$$"
trap 'git branch -D "$branch" >/dev/null 2>&1 || true' EXIT
echo "→ splitting $prefix/ into ephemeral branch $branch …"
git subtree split --prefix="$prefix" HEAD -b "$branch" >/dev/null
echo "→ pushing $branch → $remote:master …"
git push "$remote" "$branch:master"
echo "✓ done — see https://code.silentmode.st/silentmode/$remote"