AmiFM — Amiga File Manager

A dual-pane file manager for AmigaOS 3.x, inspired by DirWork/Directory Opus but with a deliberately simpler, more modern UX. Written in C, built with the bebbo m68k-amigaos-gcc cross-compiler, using Intuition + GadTools (no MUI).

It is small (~25 KB) and self-contained: the UI, navigation and file operations are hand-rolled, while the heavy lifting (viewing, archiving) is delegated to proven, already-installed Amiga tools — see Dependencies.

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Features

• Dual custom-drawn listers — pixel-aligned Name | Size columns, headers, <DIR> markers, drawers grouped first, no clipping. The full path + size + date of the selected item is shown in the title bar.
• Navigation — double-click or ../. rows (Unix-style: .. = up / volume picker at a root, . = reload). Per-pane ↑ Parent and ⇄ Reload gadgets sit above each scrollbar. Click a path bar to open the volume picker.
• Volume picker — lists volumes, devices (DH0:/DF0:/RAM:/…) and assigns (C:/S:/LIBS:/…); resizable and scrollable.
• Column sorting — click Name/Size to sort, click again to reverse.
• Tagging — Shift-click to multi-select; All/None; batch ops act on the tagged set (or the cursor row if nothing is tagged). Click a selected row again to deselect.
• File operations — Copy, Move, Rename, Delete, MakeDir, Add Icon (gives a drawer the system-default folder icon), Swap panes.
• Smart open — double-click is type-aware: enter drawer / extract archive / view file.
• View / Edit / Extract / Pack — delegated to system tools (see below).
• Find — recursive name / #? pattern search; click a result to jump to it.
• Custom scrollbars, window resize with full reflow, right-button menu (AmiFM / Selection / Pane) including Iconify to a Workbench AppIcon.
• Colour GlowIcon — ships with a hand-built OS 3.5/3.2 colour icon (AmiFM.info) with a gold glow-on-select, matching the GlowIcons look.

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Installing

Unpack the .lha wherever you keep tools (LhA x AmiFM-1.1.lha Work:), open the AmiFM drawer and double-click AmiFM. The features that hand work to other programs need those installed - see Dependencies.

From the .zip instead: a zip can't store AmigaDOS protection bits, so AmiFM arrives without its e (executable) flag and won't start until you set it:

Protect AmiFM/AmiFM +e

The package is an AmiFM drawer holding AmiFM, its icon AmiFM.info and this README, with the drawer's own icon (drawer.info in this repository) beside it as AmiFM.info.

Dependencies

AmiFM itself only needs core OS libraries. The View/Edit/Extract/Pack actions shell out to standard Amiga tools — install the ones for the features you want. If a tool is missing, only that action is affected; the rest of AmiFM works fine.

Core (required)

Library	Min version	Purpose
intuition.library	39 (OS 3.0)	windows, menus, requesters
graphics.library	39	custom rendering
gadtools.library	39	menus, string/button requesters
workbench.library	37	optional — Iconify (AppIcon)
icon.library	37	optional — Iconify icon + Add Icon

So AmiFM runs on any Workbench 3.0 or newer (tested on 3.1 and 3.2; the one dos V39 call, ExAllEnd, is version-checked too). Without workbench/icon v37, Iconify and Add Icon are disabled but nothing else changes.

Per-feature delegated tools

Action	Button	Needs	Where it ships / how to get it
View (text & images)	View	SYS:Utilities/MultiView + datatypes.library	MultiView ships with Workbench 3.x. Text + IFF ILBM work out of the box. PNG/JPEG/GIF etc. need the matching datatypes installed (Aminet util/dtype/).
Edit (text)	Edit	SYS:Tools/TextEdit	Ships with OS 3.2. Override the editor with the ENV:EDITOR variable (e.g. setenv EDITOR CygnusEd).
Extract (archives)	Extract	xadmaster.library + xadUnFile command + client modules + xadmaster.key	From Aminet util/arc/xadmaster*.lha. Handles lha, lzx, lzh, zip, zoo, tar, gz, dms and more. Install: library → LIBS:, client modules → LIBS:xad/, xadUnFile → C:, and the free xadmaster.key → S: (without the key xadmaster shows an "unregistered" nag).
Pack (to LHA)	Pack	lha command on your path	From Aminet util/arc/lha*.lha, put lha in C:. AmiFM runs lha a name.lha <item>. LhA is the Amiga packing standard; xadmaster is unpack-only, so packing uses LhA directly.
Add Icon	AddIcon	icon.library 37 + a default drawer icon	Uses GetDefDiskObject(WBDRAWER) (i.e. ENVARC:Sys/def_drawer.info, shipped with Workbench). Falls back to a built-in folder icon if no system default exists.

Faster picture datatypes such as AmiDT make View noticeably quicker on AGA machines.

Archive flow in one line: unpack = xadmaster (universal), pack = LhA, view = datatypes/MultiView, edit = TextEdit. AmiFM is just the dispatcher.

Quick install checklist for the archive features

; xadmaster (extract)
Copy xadmaster.library     LIBS:
Copy xad/#?                LIBS:xad/      ; the client modules
Copy xadUnFile             C:
Copy xadmaster.key         S:             ; the free registration key

; LhA (pack)
Copy lha                   C:

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Building

Requires the bebbo m68k-amigaos-gcc toolchain (this repo was developed with it installed under /opt/amiga):

export PATH=/opt/amiga/bin:$PATH
make            # -> AmiFM  (~25 KB, -Os -noixemul, link-time stripped)

To test under WinUAE, deploy the binary + icon into the emulator's Work: mount:

make deploy     # copies AmiFM + AmiFM.info to $(WORK)  (default /mnt/c/Amiga/workspace)

The icon (AmiFM.info) is a pre-generated colour GlowIcon. To redesign it:

make icon       # runs tools/mkglow.py -> AmiFM.info

Do not run the standalone m68k-amigaos-strip on the output — it corrupts Amiga hunk executables. The linker -s flag (already in CFLAGS) strips safely.

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Project layout

AmiFM/
├── AmiFM.c          the whole program (single translation unit)
├── AmiFM.info       colour GlowIcon (generated by tools/mkglow.py)
├── drawer.info      the package drawer's icon (ships beside the drawer as AmiFM.info)
├── Makefile         build / deploy / icon / clean
├── README.md
├── docs/
│   └── screenshot.png
└── tools/           icon-generator scripts (host-side Python, not Amiga code)
    ├── mkglow.py        designs + emits the colour GlowIcon (AmiFM.info)
    ├── decode_glow.py   decode a real GlowIcon (format reference)
    ├── verify_glow.py   round-trip-decode AmiFM.info to verify the encoder
    └── mkicon.py        older planar-only icon generator (superseded by mkglow)

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Credits

Design inspired by DirWork (Chris Hames) and Directory Opus, reimagined with clearer labels, type-aware actions, and a GUI-first workflow instead of tooltype/config-file editing. Not affiliated with either.